[Event "Olympiad"]
[Site "Warsaw"]
[Date "1935.08.22"]
[EventDate "?"]
[Round "9"]
[Result "0-1"]
[White "Leho Laurentius"]
[Black "Nikolai V Krogius"]
[ECO "A81"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "68"]

1.d4 f5 2.g3 Nf6 3.Bg2 e6 4.Nh3 d5 5.O-O Bd6 6.c4 c6 7.Nc3 O-O
8.Bg5 Qe8 9.Qb3 Kh8 10.Rad1 Nbd7 11.Rfe1 Nh5 12.cxd5 exd5
13.e4 fxe4 14.f3 Qg6 15.fxe4 Nxg3 16.hxg3 Nc5 17.dxc5 Bxc5+
18.Be3 d4 19.Bf2 Bxh3 20.Na4 Rxf2 21.Kxf2 Rf8+ 22.Kg1 d3+
23.Kh2 Qh5 24.Nxc5 Be6+ 25.Kg1 Qxc5+ 26.Kh1 Bxb3 27.axb3 Rf6
28.Rxd3 Rh6+ 29.Bh3 Rxh3+ 30.Kg2 Qc2+ 31.Kxh3 Qxd3 32.e5 Kg8
33.e6 Kf8 34.Kg4 Ke7 0-1

[Event "?"]
[Site "?"]
[Date "1945.??.??"]
[EventDate "1945.??.??"]
[Round "?"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "N Aratovsky"]
[ECO "C41"]
[WhiteElo "2485"]
[BlackElo "?"]
[PlyCount "23"]

1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. Ng5 Nh6 6. a4 Be7
7. Bxf7+ Nxf7 8. Ne6 Qb6 9. a5 Qb4+ 10. c3 Qc4 11. Nc7+ Kd8
12. b3 1-0

[Event "Leningrad"]
[Site "t"]
[Date "1946.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Petrosian"]
[Black "Nikolai V Krogius"]
[ECO "A16"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "71"]

1. c4 Nf6 2. Nc3 g6 3. e4 e5 4. Nge2 Bg7 5. g3 O-O 6. Bg2 d6
7. O-O Be6 8. d3 Qd7 9. f4 Nc6 10. Nd5 Bg4 11. Ne3 Bxe2
12. Qxe2 Nd4 13. Qf2 Ng4 14. Nxg4 Qxg4 15. Be3 f5 16. Bxd4
exd4 17. exf5 Qxf5 18. Bxb7 Rab8 19. Bd5+ Kh8 20. Qd2 c5
21. Rfe1 Rfe8 22. Rxe8+ Rxe8 23. Be4 Qd7 24. a3 Qa4 25. Qd1
Qa5 26. Kf2 Qb6 27. Rb1 a5 28. h4 Bf6 29. h5 g5 30. fxg5 Bxg5
31. Qg4 Qb3 32. Qxg5 Rxe4 33. Qf6+ Kg8 34. Rf1 Re2+ 35. Kg1
Qb8 36. h6 1-0

[Event "Ch URS (1/2 final)"]
[Site "Leningrad (Russia)"]
[Date "1949.??.??"]
[EventDate "?"]
[Round "14"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Grigory Levenfish"]
[ECO "C77"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "107"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.d4 exd4 6.O-O Be7 7.e5
Ne4 8.Nxd4 Nc5 9.Nf5 Bf8 10.Re1 g6 11.Bxc6 bxc6 12.Nh6 Bg7
13.Qf3 Qe7 14.Bg5 f6 15.Bxf6 Bxf6 16.Qxf6 Rf8 17.Nc3 Ne6
18.Qxe7+ Kxe7 19.Ng4 h5 20.Ne3 Rb8 21.b3 Nf4 22.Rad1 Ke6
23.Na4 Rb5 24.Nc4 Rd5 25.f3 g5 26.g3 Ng6 27.Rxd5 cxd5 28.Nc5+
Kf5 29.g4+ hxg4 30.fxg4+ Kxg4 31.Ne3+ Kh3 32.Nxd5 Nh4 33.Re3+
Nf3+ 34.Kh1 d6 35.exd6 cxd6 36.Ne4 Bb7 37.c4 Bxd5 38.cxd5 g4
39.Nxd6 g3 40.hxg3 Kxg3 41.Re8 Rf4 42.Ne4+ Kh3 43.d6 Ne5
44.Rh8+ Kg4+ 45.Nc5 Rd4 46.d7 Nc6 47.Kg2 Rd5 48.b4 Rd2+ 49.Kf1
Rxa2 50.d8=Q Nxd8 51.Rxd8 a5 52.Ra8 Kf3 53.Rxa5 Rb2 54.Ra3+
1-0

[Event "Leningrad"]
[Site "Leningrad"]
[Date "1949.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Mark Taimanov"]
[ECO "D47"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "45"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4
b5 8.Be2 Be7 9.a3 a6 10.e4 O-O 11.e5 Ne8 12.O-O Nc7 13.b4 a5
14.bxa5 Rxa5 15.Bd3 b4 16.Ne4 Ba6 17.Bxa6 Rxa6 18.Qd3 h6
19.Bb2 bxa3 20.Bxa3 Qa8 21.Bxe7 Rxa1 22.Bxf8 Nxf8 23.Nd6
1/2-1/2

[Event "Ch URS (1/2 final)"]
[Site "Leningrad (Russia)"]
[Date "1949.??.??"]
[EventDate "?"]
[Round "3"]
[Result "1/2-1/2"]
[White "Anatoly Ufimtsev"]
[Black "Nikolai V Krogius"]
[ECO "A16"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "160"]

1.c4 Nf6 2.Nc3 d5 3.cxd5 Nxd5 4.g3 g6 5.Bg2 Nb6 6.Nf3 Bg7
7.O-O O-O 8.d3 Be6 9.Ng5 Bc8 10.Be3 c6 11.Rc1 Nd5 12.Nxd5 cxd5
13.Qb3 e6 14.Nf3 Nc6 15.Qa3 Bd7 16.b4 a5 17.b5 Na7 18.Bxa7
Rxa7 19.Qd6 a4 20.b6 Ra5 21.Rb1 Bc6 22.Qf4 Rc5 23.Rfc1 e5
24.Nxe5 Rxc1+ 25.Rxc1 Bxe5 26.Qxe5 Qxb6 27.Bxd5 Qb5 28.Rc5
Qb1+ 29.Kg2 Re8 30.Qd4 Rxe2 31.Bxc6 bxc6 32.Qd8+ Kg7 33.Qd4+
Kg8 34.Qd8+ Kg7 35.Qd4+ Kg8 36.Ra5 Qb7 37.Qd8+ Kg7 38.Qd4+ Kg8
39.Qc5 Rxa2 40.Ra7 Qc8 41.h4 Re2 42.Rxa4 Qd7 43.Rd4 Qc7 44.Rc4
Re6 45.Qd4 Qd6 46.Qxd6 Rxd6 47.d4 h5 48.Kf3 Re6 49.Ra4 Kg7
50.Kf4 Re2 51.Kf3 Re6 52.Ra6 Kf6 53.Kf4 Kg7 54.Rb6 Kh6 55.Rb7
Kg7 56.Ra7 Kf6 57.f3 Kg7 58.Ra6 Kh6 59.Ra5 f6 60.g4 hxg4
61.fxg4 Re1 62.Rc5 Re6 63.Rc1 Kg7 64.Ra1 Kh6 65.Ra6 Rd6 66.Ke3
Re6+ 67.Kf4 Rd6 68.Ra4 Re6 69.Ra7 g5 70.Kf5 Rd6 71.hxg5 fxg5
72.Ke5 Rd5+ 73.Ke4 Kg6 74.Ra8 Kf7 75.Rh8 Ke6 76.Rh6+ Kd7
77.Rg6 Rb5 78.Rf6 Rd5 79.Rf8 Rb5 80.Rf7+ Ke6 1/2-1/2

[Event "Ch URS (1/2 final)"]
[Site "Leningrad (Russia)"]
[Date "1949.??.??"]
[EventDate "?"]
[Round "17"]
[Result "1-0"]
[White "Georgy Lisitsin"]
[Black "Nikolai V Krogius"]
[ECO "A04"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "22"]

1. Nf3 f5 2. d3 Nf6 3. e4 fxe4 4. dxe4 Nxe4 5. Bd3 Nf6 6. Ng5
g6 7. h4 d6 8. h5 gxh5 9. Bxh7 Nxh7 10. Qxh5+ Kd7 11. Nf7 Ng5
1-0

[Event "URS-ch sf"]
[Site "Leningrad"]
[Date "1949.??.??"]
[EventDate "?"]
[Round "10"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Zamikhovsky"]
[ECO "E07"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "129"]

1.Nf3 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Nbd7 5.d4 Be7 6.O-O O-O 7.b3
Ne4 8.Nbd2 f5 9.Qc2 c6 10.Bb2 Qe8 11.Ne5 Nxe5 12.dxe5 Bd7
13.Nf3 Rc8 14.e3 g5 15.Nd4 g4 16.Rac1 Ng5 17.Qd3 h5 18.Ne2 Rd8
19.Nf4 Bc8 20.Rfd1 Qf7 21.Qc3 Qh7 22.b4 h4 23.b5 hxg3 24.fxg3
Ne4 25.Bxe4 dxe4 26.bxc6 bxc6 27.Qa5 Bg5 28.Ba3 Rfe8 29.Bc5 a6
30.Qb6 Qb7 31.Rxd8 Bxd8 32.Qxb7 Bxb7 33.Rd1 a5 34.Nxe6 Bb6
35.Rb1 Bc8 36.Ng7 Kxg7 37.Rxb6 Be6 38.Rxc6 Bxc4 39.a3 Re6
40.Bd6 Bb3 41.Rc7+ Kg8 42.Rc8+ Kg7 43.Kf2 Rg6 44.Ke1 Kf7
45.Rc7+ Kg8 46.Kd2 Rh6 47.Kc3 a4 48.Kb4 Rxh2 49.Re7 Rh7
50.Re8+ Kf7 51.Rf8+ Ke6 52.Kc5 Rh2 53.Re8+ Kf7 54.Re7+ Kg6
55.Kc6 Rc2+ 56.Bc5 f4 57.gxf4 g3 58.f5+ Kxf5 59.Rg7 g2 60.Kd6
Rd2+ 61.Bd4 Ba2 62.Ke7 Bd5 63.Bc5 Bb3 64.Bd4 Bd1 65.e6 1/2-1/2

[Event "URS-ch sf"]
[Site "Leningrad"]
[Date "1949.??.??"]
[EventDate "?"]
[Round "7"]
[Result "1/2-1/2"]
[White "Yakov Estrin"]
[Black "Nikolai V Krogius"]
[ECO "C56"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "45"]

1.e4 e5 2.Bc4 Nf6 3.d4 exd4 4.Nf3 Nc6 5.O-O Nxe4 6.Re1 d5
7.Bxd5 Qxd5 8.Nc3 Qa5 9.Nxe4 Be6 10.Neg5 O-O-O 11.Nxe6 fxe6
12.Rxe6 Bd6 13.Bg5 Rde8 14.Qe2 Kd7 15.Re1 Qxe1+ 16.Nxe1 Rxe6
17.Qg4 Rhe8 18.Nd3 Ne5 19.Nxe5+ Bxe5 20.g3 h6 21.Bf4 Bf6 22.h4
Kd8 23.Qf5 1/2-1/2

[Event "URS-ch sf"]
[Site "Leningrad"]
[Date "1949.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Vladimir Zagorovsky"]
[Black "Nikolai V Krogius"]
[ECO "C91"]
[WhiteElo "?"]
[BlackElo "2485"]
[PlyCount "78"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5
7. Bb3 O-O 8. d4 d6 9. c3 Bg4 10. a4 Qd7 11. d5 Na5 12. Bc2 c6
13. dxc6 Nxc6 14. h3 Bh5 15. Nbd2 Rac8 16. Qe2 Nd4 17. cxd4
Rxc2 18. axb5 axb5 19. Qd3 Rfc8 20. d5 Bd8 21. Nh2 Bb6
22. Nhf1 Bg6 23. Ne3 R2c7 24. Kh2 Nh5 25. g3 Bxe3 26. Qxe3 f5
27. exf5 Qxf5 28. Nf1 Nf6 29. g4 Qc2 30. Qd2 Ne4 31. Qxc2 Rxc2
32. Ne3 Rxf2+ 33. Kg1 Rf7 34. b3 Nf2 35. h4 Nd3 36. Rd1 Rf3
37. Bd2 Be4 38. Rf1 Rh3 39. Ng2 Rg3 0-1

[Event "RSFSR"]
[Site "?"]
[Date "1949.??.??"]
[EventDate "1949.??.??"]
[Round "?"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Mikhail Kamyshov"]
[ECO "D47"]
[WhiteElo "2485"]
[BlackElo "?"]
[PlyCount "43"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 Nf6 5. e3 Nbd7 6. Bd3 dxc4
7. Bxc4 b5 8. Be2 a6 9. e4 b4 10. e5 bxc3 11. exf6 cxb2
12. fxg7 bxa1=Q 13. gxh8=Q Qa5+ 14. Nd2 Qf5 15. O-O Bb7
16. Qb3 Nc5 17. Ba3 Nxb3 18. Qxf8+ Kd7 19. Qe7+ Kc8 20. Nxb3
Qxf1+ 21. Bxf1 Qd5 22. Bd6 1-0

[Event "Ch Russia"]
[Site "Yaroslavl (Russia)"]
[Date "1951.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Leonid Shamkovich"]
[ECO "E10"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "59"]

1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 exd5 5.cxd5 b5 6.a4 Bb7 7.e4
Nxe4 8.Bxb5 Be7 9.O-O O-O 10.Re1 Nd6 11.Nc3 Nxb5 12.axb5 d6
13.Nd2 Nd7 14.Nc4 Nb6 15.Na5 Qd7 16.Bf4 Rfe8 17.h3 Bf6
18.Rxe8+ Rxe8 19.Nc6 Ra8 20.Qd3 g6 21.Ne4 Bxb2 22.Rb1 Bg7
23.Nxd6 a5 24.bxa6 Bxc6 25.Rxb6 Ba4 26.Rb7 Qd8 27.Rxf7 Bf8
28.Qe4 Bd7 29.Bg5 Qc7 30.Ne8 1-0

[Event "Ch URS (1/2 final), Leningrad (Russia)"]
[Site "Ch URS (1/2 final), Leningrad (Russia)"]
[Date "1951.??.??"]
[EventDate "?"]
[Round "18"]
[Result "1-0"]
[White "Vasily Smyslov"]
[Black "Nikolai V Krogius"]
[ECO "C89"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "99"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5
7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6
12. d4 Bd6 13. Re1 Qh4 14. g3 Qh3 15. Be3 Bg4 16. Qd3 f5
17. f4 g5 18. Qf1 Kh8 19. Bxd5 cxd5 20. Qxh3 Bxh3 21. fxg5 f4
22. gxf4 Bxf4 23. Nd2 Rf5 24. Bxf4 Rxf4 25. Re3 Rg4+ 26. Rg3
Rxg3+ 27. hxg3 Re8 28. Kf2 Rf8+ 29. Ke3 Re8+ 30. Kf2 Rf8+
31. Kg1 Re8 32. Kh2 Bg4 33. Rg1 a5 34. Rg2 Re1 35. Rf2 a4
36. Kg2 a3 37. bxa3 Rc1 38. Nf3 Rxc3 39. Ne5 Be6 40. Rf6 Bg8
41. Ra6 Rc2+ 42. Kf3 Rxa2 43. Ra5 Rb2 44. Ra7 b4 45. g6 h6
46. axb4 Rxb4 47. Nc6 Rc4 48. Rc7 Be6 49. Rh7+ Kg8 50. Ne7+
1-0

[Event "RUS-ch"]
[Site "Yaroslavl"]
[Date "1951.??.??"]
[EventDate "?"]
[Round "2"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Nikolay Novotelnov"]
[ECO "D46"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "63"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 c6 5.e3 Nbd7 6.Bd3 Bd6 7.e4
dxe4 8.Nxe4 Nxe4 9.Bxe4 Qa5+ 10.Bd2 Bb4 11.O-O Bxd2 12.Nxd2
O-O 13.Re1 Qb6 14.Nb3 a5 15.c5 Qc7 16.Nd2 Rd8 17.Nc4 Nxc5
18.Bxh7+ Kxh7 19.Qc2+ Nd3 20.Qxd3+ Kg8 21.Re4 c5 22.Rh4 Rxd4
23.Qh7+ Kf8 24.Qh8+ Ke7 25.Qxg7 Rxh4 26.Qg5+ Kf8 27.Qxh4 Ra6
28.Rd1 Bd7 29.Qf6 e5 30.Nd6 Bg4 31.Qh8+ Ke7 32.Qxe5+ 1-0

[Event "13th RSFSR Ch"]
[Site "Saratov, USSR"]
[Date "1953.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Nezhmetdinov"]
[Black "Nikolai V Krogius"]
[ECO "C85"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "123"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Bxc6 dxc6
7.Qe1 c5 8.b3 Bd6 9.Bb2 Qe7 10.Nc3 O-O 11.h3 Be6 12.Qe3 c4
13.bxc4 Bxc4 14.d3 Be6 15.d4 exd4 16.Nxd4 Bc5 17.e5 Nd7 18.Ne4
Ba7 19.Qg3 Kh8 20.Ba3 c5 21.f4 Bb8 22.Rad1 Bc7 23.Kh1 Rg8
24.Nxe6 fxe6 25.Qg5 Rge8 26.Qxe7 Rxe7 27.Nxc5 Nxc5 28.Bxc5 Rf7
29.f5 Re8 30.fxe6 Rxf1+ 31.Rxf1 Bxe5 32.Rf7 Kg8 33.Rxb7 Rxe6
34.Rb6 Re8 35.Rxa6 Bg3 36.Bg1 h5 37.Ra3 h4 38.Be3 Rc8 39.Kg1
Rxc2 40.Ra8+ Kf7 41.Kf1 Ke6 42.Ra5 g6 43.a4 Ra2 44.Bb6 Rb2
45.Rg5 Rb4 46.Rg4 Bf4 47.Be3 g5 48.Bxf4 gxf4 49.a5 Ra4 50.Rxh4
Kf5 51.Rh8 Ra1+ 52.Kf2 Ra2+ 53.Kg1 Kg5 54.Rg8+ Kf5 55.Ra8 Ra1+
56.Kh2 Kg6 57.h4 Ra3 58.a6 Kg7 59.a7 Ra1 60.Kh3 Ra2 61.h5 Kh7
62.h6 1-0

[Event "USSR Team Ch"]
[Site "USSR"]
[Date "1953.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "G Borisenko"]
[ECO "B94"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "39"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5
Nbd7 7. Qf3 Qa5 8. Bd2 Qc7 9. O-O-O g6 10. h4 Bg7 11. h5 Nxh5
12. Nd5 Qd8 13. Nf5 gxf5 14. Rxh5 fxe4 15. Qxe4 Nc5 16. Qh4
Be6 17. Ba5 b6 18. Bxb6 Bxb2+ 19. Kb1 Rb8 20. Bb5+ 1-0

[Event "Ch Russia"]
[Site "Rostov on Don (Russia)"]
[Date "1954.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Lev Polugaevsky"]
[ECO "B93"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "27"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7
7. Bd3 g6 8. O-O Bg7 9. Kh1 b5 10. a3 Bb7 11. Nf3 Nbd7 12. Qe1
Nc5 13. f5 Qc6 14. Nd4 1/2-1/2

[Event "Ch Russia"]
[Site "Rostov on Don (Russia)"]
[Date "1954.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Leonid Shamkovich"]
[Black "Nikolai V Krogius"]
[ECO "A15"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "73"]

1.c4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O c6 6.Qc2 d5 7.b3 a5
8.Nc3 Na6 9.Bb2 d4 10.Na4 Bf5 11.d3 b5 12.Nxd4 bxa4 13.Nxc6
Qc7 14.Qd2 axb3 15.axb3 Nc5 16.Nxa5 Bd7 17.Bxa8 Rxa8 18.b4 Na4
19.Nb3 Rb8 20.Bd4 e5 21.Be3 Bh3 22.Rfb1 Ng4 23.b5 Nxe3 24.Qxe3
Nc3 25.Ra7 Nxe2+ 26.Kh1 Qb6 27.Qxb6 Rxb6 28.Ra8+ Bf8 29.Re1
Bg4 30.Kg2 Rf6 31.Nd2 Nd4 32.Rxe5 Kg7 33.Re4 Nf3 34.Rxg4 Nxd2
35.Rf4 Bc5 36.Rxf6 Kxf6 37.b6 1-0

[Event "?"]
[Site "?"]
[Date "1954.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Boris Spassky"]
[Black "Nikolai V Krogius"]
[ECO "B95"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "75"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6
7. Qf3 Be7 8. O-O-O Qc7 9. Qg3 Nc6 10. Nxc6 bxc6 11. f4 h6
12. Bxf6 gxf6 13. Qg7 Rf8 14. Bc4 d5 15. exd5 Qxf4+ 16. Kb1
Qxc4 17. d6 Qf4 18. dxe7 Kxe7 19. h4 Rb8 20. Rhf1 Qe5 21. Ka1
Rb4 22. Qxh6 f5 23. Qg5+ f6 24. Qd2 c5 25. Rfe1 Rd4 26. Qf2
Rxd1+ 27. Rxd1 Bb7 28. Re1 Be4 29. g4 Qd4 30. Qg3 Qd6 31. Qf2
Qd4 32. Qf1 Rb8 33. a3 Bxc2 34. gxf5 e5 35. Qxa6 Qd7 36. Rg1
Bb3 37. Ne4 Rf8 38. Rg7+ 1-0

[Event "RSFSR-ch"]
[Site "Rostov on Don"]
[Date "1954.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Anatoly S Lutikov"]
[Black "Nikolai V Krogius"]
[ECO "B95"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "55"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.Qf3
h6 8.Bd2 Qc7 9.Bd3 Nc6 10.Nde2 b5 11.O-O Bb7 12.Qh3 Ne5 13.a3
Be7 14.f4 Nc4 15.Bc1 d5 16.exd5 exd5 17.Nd4 Qb6 18.Nce2 O-O
19.b3 Nd6 20.Be3 Qc7 21.Ng3 Bc8 22.Ngf5 Nxf5 23.Nxf5 Bxf5
24.Bxf5 Bc5 25.b4 Bb6 26.Bd3 Rfe8 27.Bxb6 Qxb6+ 28.Kh1 1/2-1/2

[Event "USSR"]
[Site "USSR"]
[Date "1955.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Efim Geller"]
[ECO "B76"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "79"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3
Nc6 8.Qd2 O-O 9.O-O-O Nxd4 10.Bxd4 Qa5 11.Bc4 Be6 12.Bb3 Rfc8
13.Kb1 b5 14.g4 b4 15.Ne2 Qb5 16.h4 a5 17.g5 Nd7 18.Bxe6 fxe6
19.Bxg7 Kxg7 20.Nd4 Qc4 21.b3 Qc3 22.Nxe6+ Kf7 23.Nd4 a4 24.h5
axb3 25.cxb3 Qxd2 26.Rxd2 Nf8 27.hxg6+ hxg6 28.f4 Rc5 29.Nc2
Rb8 30.Kb2 Rb7 31.Ne3 Rc3 32.Nd5 Rf3 33.Rhh2 Ne6 34.Rh7+ Kf8
35.Rh8+ Kf7 36.Rh7+ Kf8 37.e5 dxe5 38.Rc2 Ke8 39.Nf6+ Kd8
40.Rh8+ 1-0

[Event "USSR"]
[Site "USSR"]
[Date "1955.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Mark Taimanov"]
[ECO "B63"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "47"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2
Be7 8.O-O-O O-O 9.Nb3 Qb6 10.f3 Rd8 11.Be3 Qc7 12.Qf2 Nd7
13.Nb5 Qb8 14.g4 a6 15.N5d4 Qc7 16.h4 Nce5 17.g5 b5 18.h5 Nc4
19.g6 Nxe3 20.gxf7 Kxf7 21.Qxe3 Nc5 22.Bh3 Bf6 23.f4 Nxb3+
24.Qxb3 1/2-1/2

[Event "URS-ch sf"]
[Site "Leningrad"]
[Date "1955.??.??"]
[EventDate "?"]
[Round "5"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Vladimir Antoshin"]
[ECO "E52"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "31"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 Bb4 5.e3 O-O 6.Bd3 b6 7.O-O
Bb7 8.cxd5 exd5 9.Ne5 a6 10.a3 Bd6 11.b4 Nbd7 12.f4 Ne4
13.Nxe4 dxe4 14.Bc4 b5 15.Nxd7 Qxd7 16.Be2 1/2-1/2

[Event "URS-ch sf"]
[Site "Leningrad"]
[Date "1955.??.??"]
[EventDate "?"]
[Round "8"]
[Result "1/2-1/2"]
[White "Mamadzhan Mukhitdinov"]
[Black "Nikolai V Krogius"]
[ECO "E06"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "82"]

1.c4 e6 2.Nf3 Nf6 3.g3 d5 4.Bg2 Be7 5.O-O O-O 6.d4 c6 7.Nbd2
b6 8.b3 Nbd7 9.Bb2 Bb7 10.Ne5 Rc8 11.Rc1 Rc7 12.cxd5 cxd5
13.Ndf3 Nxe5 14.Nxe5 Nd7 15.Nxd7 Qxd7 16.Rxc7 Qxc7 17.Qd2 Ba6
18.Rc1 Qd7 19.Bf1 Rc8 20.Rxc8+ Qxc8 21.Qc1 Qxc1 22.Bxc1 Kf8
23.e3 Bxf1 24.Kxf1 Ke8 25.Ke2 h5 26.h3 f5 27.h4 g5 28.hxg5
Bxg5 29.Ba3 Kd7 30.Bf8 Kc6 31.Kd3 Bf6 32.Ba3 Kb5 33.Bd6 a6
34.Bf8 h4 35.gxh4 Bxh4 36.Ke2 Kc6 37.f4 Kb5 38.Bd6 Kc6 39.Bf8
Kd7 40.Bb4 Ke8 41.Bd6 Kd7 1/2-1/2

[Event "URS-ch sf"]
[Site "Leningrad"]
[Date "1955.??.??"]
[EventDate "?"]
[Round "18"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Boris T Vladimirov"]
[ECO "B65"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "81"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2
Be7 8.O-O-O Nxd4 9.Qxd4 O-O 10.f4 Qa5 11.e5 dxe5 12.Qxe5 b6
13.Be2 Qxe5 14.fxe5 Nd5 15.Bxe7 Nxe7 16.Rhe1 Ng6 17.Bf3 Rb8
18.Nb5 a5 19.Nd6 Ba6 20.b3 Rfd8 21.c4 Kf8 22.Bh5 Ke7 23.Bxg6
hxg6 24.Rf1 f6 25.Rd2 Bb7 26.Nxb7 Rxd2 27.Kxd2 Rxb7 28.exf6+
gxf6 29.Kc3 Rd7 30.a3 f5 31.b4 axb4+ 32.axb4 e5 33.Ra1 Ke6
34.Ra6 Rd6 35.Ra8 e4 36.Re8+ Kd7 37.Re5 Rd3+ 38.Kc2 Kd6 39.Rb5
Kc6 40.Re5 Kd6 41.Rb5 1/2-1/2

[Event "URS-ch sf"]
[Site "Leningrad"]
[Date "1955.??.??"]
[EventDate "?"]
[Round "16"]
[Result "0-1"]
[White "Nikolai V Krogius"]
[Black "Ratmir Kholmov"]
[ECO "B17"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "128"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Nf3 Ngf6 6.Ng3 Qc7
7.Bd3 e6 8.O-O Be7 9.c4 O-O 10.b3 b6 11.Bb2 Bb7 12.Qe2 Rfe8
13.Rad1 Rad8 14.Rfe1 c5 15.Bb1 cxd4 16.Rxd4 Nf8 17.Ne5 Rxd4
18.Bxd4 Rd8 19.Bb2 Ng6 20.Nxg6 hxg6 21.Rd1 Bc5 22.Rxd8+ Qxd8
23.Kf1 Qa8 24.f3 Qb8 25.Qe5 Bd6 26.Qe1 Qc7 27.Bd4 Bf4 28.Bf2
g5 29.h3 g6 30.Ne2 Be5 31.Qd2 Nh7 32.Be3 Qe7 33.Nc3 f5 34.Kg1
Bb8 35.b4 Qxb4 36.Qd8+ Qf8 37.Qxf8+ Kxf8 38.c5 bxc5 39.Bxc5+
Kg7 40.Bd3 a6 41.Be3 Bf4 42.Bd4+ e5 43.Bf2 Nf6 44.Kf1 Bd2
45.Na4 a5 46.Bc4 Nd5 47.Nb6 Nf4 48.h4 gxh4 49.Bxh4 e4 50.Bg5
exf3 51.g3 Be3 52.Nd7 Nd5 53.Nf6 Bxg5 54.Nxd5 Bd8 55.Kf2 Kf7
56.Ne3+ Kf6 57.Bd5 Bxd5 58.Nxd5+ Ke5 59.Nc3 Kd4 60.Nd1 a4
61.Kxf3 a3 62.g4 fxg4+ 63.Kxg4 Kd3 64.Kf3 Bb6 0-1

[Event "URS-ch sf"]
[Site "Leningrad"]
[Date "1955.??.??"]
[EventDate "?"]
[Round "13"]
[Result "1/2-1/2"]
[White "Anatoly S Lutikov"]
[Black "Nikolai V Krogius"]
[ECO "D59"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "76"]

1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.Bg5 Be7 5.e3 h6 6.Bh4 O-O 7.Nf3 b6
8.cxd5 Nxd5 9.Bg3 c5 10.Bd3 cxd4 11.exd4 Ba6 12.Bxa6 Nxa6
13.O-O Nab4 14.Qa4 Qe8 15.Qb3 Rc8 16.Rac1 Nxc3 17.bxc3 Nc6
18.Qb5 Ba3 19.Rcd1 Na5 20.Qa6 Qe7 21.Rd3 Bb2 22.Rb1 Rxc3
23.Rxc3 Bxc3 24.Rc1 Qa3 25.Bf4 Bb2 26.Rc8 Rxc8 27.Qxc8+ Kh7
28.Qc2+ Kg8 29.Qc8+ Kh7 30.Qc2+ f5 31.d5 Bf6 32.dxe6 Qc5
33.Qd3 Nc6 34.h4 Nb4 35.Qd7 Qd5 36.Bc7 Qe4 37.Bd6 Nd5 38.h5 b5
1/2-1/2

[Event "RSFSR-ch"]
[Site "RSFSR-ch"]
[Date "1956.??.??"]
[EventDate "1956.??.??"]
[Round "?"]
[Result "1/2-1/2"]
[White "Sergey V Khavsky"]
[Black "Nikolai V Krogius"]
[ECO "C30"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "39"]

1. e4 e5 2. f4 Nf6 3. fxe5 Nxe4 4. Nf3 d5 5. d3 Nc5 6. d4 Ne6
7. Be3 c5 8. dxc5 Nc6 9. Bb5 Bxc5 10. Bxc5 Nxc5 11. Nc3 Be6
12. Qe2 O-O 13. O-O-O a6 14. Bd3 d4 15. Be4 Qb6 16. Nd5 Bxd5
17. Bxd5 Rfd8 18. Bxc6 Qxc6 19. Kb1 Ne6 20. g3 1/2-1/2

[Event "Tbilisi"]
[Site "Tbilisi"]
[Date "1956.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Viktor Korchnoi"]
[ECO "C05"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "61"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 b6
7. f4 Ba6 8. Bxa6 Nxa6 9. Ndf3 Be7 10. Ne2 c4 11. O-O O-O
12. g4 f5 13. exf6 Nxf6 14. Ne5 Nc7 15. Ng3 b5 16. Qe2 Bd6
17. Bd2 Nd7 18. f5 Qe7 19. Rae1 Bxe5 20. dxe5 Rae8 21. Qf2 Qd8
22. Qxa7 exf5 23. Nxf5 Rxe5 24. Rxe5 Nxe5 25. Bf4 Re8 26. Bxe5
Rxe5 27. Qd4 Qe8 28. Nxg7 Qe7 29. Nf5 Qe6 30. Nh6+ Kg7 31. Nf7
1-0

[Event "Ch URS"]
[Site "Tbilisi"]
[Date "1956.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Petrosian"]
[Black "Nikolai V Krogius"]
[ECO "E94"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "81"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 e5
7. O-O c6 8. d5 c5 9. a3 Nbd7 10. Rb1 Ne8 11. b4 Qe7 12. Ne1
f5 13. Nd3 b6 14. f3 Bf6 15. Qa4 Bg5 16. Bxg5 Qxg5 17. Qc6 Rb8
18. bxc5 Qe3+ 19. Kh1 Nxc5 20. Nxc5 Qxc3 21. Ne6 Bxe6 22. dxe6
Qe3 23. Rfe1 fxe4 24. Qd7 Qc5 25. Qxa7 Nc7 26. e7 Rfe8
27. fxe4 Qc6 28. Bg4 Rb7 29. Bd7 Rxa7 30. Bxc6 Rxe7 31. a4 Ra6
32. Red1 Re6 33. Rb3 Kg7 34. Rdb1 Rf6 35. h3 Na8 36. Kg1 h5
37. h4 Ra5 38. Rf1 Ra6 39. Rxf6 Kxf6 40. Rf3+ Ke7 41. Bd5 1-0

[Event "Ch URS (1/2 final)"]
[Site "Tbilisi (Georgia)"]
[Date "1956.??.??"]
[EventDate "?"]
[Round "3"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Lev Polugaevsky"]
[ECO "B62"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "101"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6
7. Qd2 a6 8. O-O-O h6 9. Bh4 Nxe4 10. Qf4 g5 11. Qxe4 gxh4
12. Nxc6 bxc6 13. Qxc6+ Bd7 14. Qe4 Rb8 15. Bc4 Bg7 16. Rxd6
Qg5+ 17. Qe3 Qxe3+ 18. fxe3 Bb5 19. Bxb5+ axb5 20. a3 Rg8
21. Na2 Be5 22. Rd2 Rd8 23. Re2 Rc8 24. Nb4 Ke7 25. Nd3 Bb8
26. h3 Rg3 27. Rf1 Rcg8 28. Ne1 R3g7 29. c3 Rg5 30. Kc2 Bc7
31. Kb3 Bd6 32. e4 Bc7 33. a4 bxa4+ 34. Kxa4 Ra8+ 35. Kb3 Rb5+
36. Kc4 Rbb8 37. Nd3 Rc8 38. Kb3 Rab8+ 39. Kc2 Bg3 40. Re3 Rc7
41. Ra1 Rcb7 42. e5 Rc7 43. Ra4 Rb6 44. c4 f6 45. b3 fxe5
46. Nxe5 Rcb7 47. Ra5 h5 48. Rf3 Be1 49. Ng6+ Kd6 50. Rd3+ Kc7
51. Rxh5 1-0

[Event "Tbilisi"]
[Site "18"]
[Date "1956.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Mikhail Tal"]
[Black "Nikolai V Krogius"]
[ECO "D50"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "123"]

1.c4 e6 2.Nc3 d5 3.d4 Nf6 4.Bg5 Be7 5.e3 h6 6.Bxf6 Bxf6 7.Qc2
c5 8.O-O-O cxd4 9.exd4 O-O 10.Nf3 Nc6 11.h4 Qc7 12.Kb1 Qf4
13.Ne2 Qe4 14.Qxe4 dxe4 15.Nd2 Bxd4 16.Nxd4 Nxd4 17.Nxe4 e5
18.Nd6 Rd8 19.c5 Bg4 20.f3 Bf5+ 21.Bd3 Bxd3+ 22.Rxd3 b6 23.Rc1
bxc5 24.Nb7 Rd7 25.Nxc5 Re7 26.Na6 g5 27.hxg5 hxg5 28.b4 f5
29.a4 Kf7 30.b5 Rd8 31.Nc5 Rc8 32.Nb3 Rxc1+ 33.Kxc1 Nxb3+
34.Rxb3 e4 35.fxe4 Rxe4 36.a5 Re7 37.Kd2 f4 38.Rb4 Ke8 39.b6
axb6 40.axb6 Rb7 41.Kd3 Kd8 42.Ke4 Kc8 43.Rb5 Re7+ 44.Re5 Rg7
45.Kf3 Kb7 46.Rb5 Rf7 47.Kg4 f3 48.gxf3 Rf4+ 49.Kg3 Rf8 50.Rb4
Rf5 51.Kg4 Rc5 52.Rb1 Ra5 53.Rb2 Rc5 54.Rh2 Kxb6 55.Rh5 Kc6
56.Rxg5 Rc3 57.Re5 Kd6 58.Re8 Kd7 59.Re1 Rc8 60.f4 Rg8+ 61.Kh5
Rf8 62.Kg5 1-0

[Event "Tbilisi ½f-USSR ch"]
[Site "GEO"]
[Date "1956.??.??"]
[EventDate "?"]
[Round "1"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Egor Chukaev"]
[ECO "C77"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "82"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.Bxc6 dxc6 6.Nc3 Bg4
7.h3 Bh5 8. d3 Nd7 9.Qe2 Bd6 10.g4 Bg6 11.Bd2 Qe7 12.Nd1 O-O-O
13.Ne3 Bb4 14.O-O-O Bxd2+ 15.Qxd2 Rhe8 16.Qc3 Qf6 17.Nd2 Qxf2
18.Ndc4 Qh4 19.Rdg1 Qe7 20.h4 h6 21.Nf5 Qf8 22.h5 Bh7 23.a3 f6
24.Na5 Nb8 25.Rf1 Rd7 26.b4 Qf7 27.Nb3 Rdd8 28.a4 b6 29.a5 Kb7
30.Kb2 Bxf5 31.gxf5 Nd7 32.Ra1 Ra8 33.Ra3 Red8 34.Nd2 Nf8
35.Nc4 Nh7 36.axb6 cxb6 37.Qe1 Qd7 38.Qe3 Qd4+ 39.Qxd4 Rxd4
40.Kc3 Ng5 41.Nd2 Rd7 1/2-1/2

[Event "Tbilisi ½f-USSR ch"]
[Site "GEO"]
[Date "1956.??.??"]
[EventDate "?"]
[Round "2"]
[Result "1/2-1/2"]
[White "Yuri M Kotkov"]
[Black "Nikolai V Krogius"]
[ECO "C94"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "89"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3
O-O 8.c3 d6 9.h3 Nb8 10.d4 Bb7 11.dxe5 Nxe4 12.Bc2 Nc5 13.exd6
Qxd6 14.Qe2 Bf6 15. Be3 Nbd7 16.Nbd2 Qc6 17.Bf4 Nb6 18.Ne4
Nxe4 19.Bxe4 Qxe4 20.Qxe4 Bxe4 21. Rxe4 Na4 22.Re2 Rae8
23.Rae1 Rxe2 24.Rxe2 c5 25.Rd2 Rd8 26.Rxd8+ Bxd8 27. Bc1 Bf6
28.Ne1 Kf8 29.Kf1 Ke7 30.Nd3 Kd6 31.Ke1 c4 32.Nb4 a5 33.Nc2
Nc5 34.Na3 Nd3+ 35.Kd1 Nxf2+ 36.Kc2 Kc6 37.b3 cxb3+ 38.axb3
Ne4 39.c4 Nd6 40. cxb5+ Nxb5 41.Nxb5 Kxb5 42.Kd3 h5 43.g4 hxg4
44.hxg4 g6 45.Bd2 1/2-1/2

[Event "Tbilisi ½f-USSR ch"]
[Site "GEO"]
[Date "1956.??.??"]
[EventDate "?"]
[Round "4"]
[Result "1/2-1/2"]
[White "Alexander Koblents"]
[Black "Nikolai V Krogius"]
[ECO "E64"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "33"]

1.d4 Nf6 2.c4 d6 3.Nf3 g6 4.g3 Bg7 5.Bg2 O-O 6.O-O c5 7.d5 Na6
8.Nc3 Nc7 9.Qc2 Rb8 10.Nd2 e5 11.dxe6 Bxe6 12.Rd1 Qe7 13.Qa4
d5 14.cxd5 Ncxd5 15.Nce4 Nxe4 16.Nxe4 b5 17.Qc2 1/2-1/2

[Event "Tbilisi ½f-USSR ch"]
[Site "GEO"]
[Date "1956.??.??"]
[EventDate "?"]
[Round "5"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Eduard Gufeld"]
[ECO "E75"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "44"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5 7.d5 Qa5
8.Bd2 Qc7 9.Nf3 e5 10.O-O Ne8 11.a3 Qe7 12.b4 Nd7 13.Ne1 f5
14.Nd3 Ndf6 15.f3 f4 16.Rb1 g5 17.g4 fxg3 18.hxg3 h6 19.Kg2 b6
20.Rh1 Nh7 21.Be3 Rf7 22. Qd2 Nf8 1/2-1/2

[Event "Tbilisi ½f-USSR ch"]
[Site "GEO"]
[Date "1956.??.??"]
[EventDate "?"]
[Round "6"]
[Result "1/2-1/2"]
[White "V Zurakhov"]
[Black "Nikolai V Krogius"]
[ECO "C73"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "31"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.Bxc6+ bxc6 6.d4 f6 7.Be3
Ne7 8.c4 Ng6 9.Nc3 Rb8 10.Qc2 Be7 11.O-O-O O-O 12.Ne2 Qe8
13.Ng3 d5 14.dxe5 dxe4 15.Nxe4 fxe5 16.Nfd2 1/2-1/2

[Event "Tbilisi ½f-USSR ch"]
[Site "GEO"]
[Date "1956.??.??"]
[EventDate "?"]
[Round "7"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Semyon Abramovich Furman"]
[ECO "C17"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "24"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.Bd2 Ne7 6.a3 Bxc3 7.Bxc3
b6 8.Qg4 Nf5 9.Bd3 h5 10.Qh3 Qg5 11.Bxf5 Qxf5 12.Qxf5 exf5
1/2-1/2

[Event "Tbilisi ½f-USSR ch"]
[Site "GEO"]
[Date "1956.??.??"]
[EventDate "?"]
[Round "9"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Boris Voronkov"]
[ECO "D15"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "32"]

1.c4 c6 2.d4 d5 3.Nf3 Nf6 4.Nc3 dxc4 5.e3 b5 6.a4 b4 7.Na2 e6
8.Bxc4 Be7 9.O-O O-O 10.Qe2 Bb7 11.Rd1 a5 12.e4 c5 13.dxc5 Qc7
14.Bd3 Nbd7 15. Bg5 Nxc5 16.Rac1 Rac8 1/2-1/2

[Event "Tbilisi ½f-USSR ch"]
[Site "GEO"]
[Date "1956.??.??"]
[EventDate "?"]
[Round "10"]
[Result "0-1"]
[White "Genrikh Kasparian"]
[Black "Nikolai V Krogius"]
[ECO "C46"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "64"]

1.e4 e5 2.Nf3 Nc6 3.Nc3 g6 4.d4 exd4 5.Nxd4 Bg7 6.Be3 Nge7
7.Qd2 O-O 8. Be2 d6 9.O-O Bd7 10.Rad1 a6 11.f4 f5 12.Nxc6 Bxc6
13.Bc4+ Kh8 14.e5 dxe5 15.Qf2 Qe8 16.fxe5 f4 17.Bc5 Rf5 18.Bd3
Rg5 19.Ne4 Rxe5 20.Bd4 Nf5 21. Bxe5 Bxe5 22.c3 Ne3 23.Rde1 Rd8
24.Rxe3 fxe3 25.Qxe3 Qe7 26.Re1 Bxh2+ 27. Kxh2 Qh4+ 28.Kg1
Rxd3 29.Qe2 Rd8 30.Qe3 Qe7 31.Qf2 Re8 32.Qd4+ Qg7 0-1

[Event "Tbilisi ½f-USSR ch"]
[Site "GEO"]
[Date "1956.??.??"]
[EventDate "?"]
[Round "11"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Alexander Buslaev"]
[ECO "B32"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "49"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6
7.Nxc6 bxc6 8. e5 Ng8 9.Bd4 f6 10.f4 d5 11.exd6 exd6 12.Qf3
Ne7 13.O-O-O O-O 14.Bc5 d5 15.Bc4 Rb8 16.Rhe1 Rf7 17.Bxe7 Rxe7
18.Rxe7 Qxe7 19.Nxd5 cxd5 20.Qxd5+ Be6 21.Qxe6+ Qxe6 22.Bxe6+
Kf8 23.Rd7 Re8 24.Rf7+ Kg8 25.Bd5 1-0

[Event "Tbilisi ½f-USSR ch"]
[Site "GEO"]
[Date "1956.??.??"]
[EventDate "?"]
[Round "12"]
[Result "1/2-1/2"]
[White "Vladimir Antoshin"]
[Black "Nikolai V Krogius"]
[ECO "C85"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "31"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Bxc6 dxc6
7.d3 Nd7 8. Nbd2 O-O 9.Nc4 f6 10.Nh4 Nc5 11.f4 exf4 12.Rxf4 g5
13.Nf5 gxf4 14.Qg4+ Kf7 15.Qh5+ Kg8 16.Qg4+ 1/2-1/2

[Event "Tbilisi ½f-USSR ch"]
[Site "GEO"]
[Date "1956.??.??"]
[EventDate "?"]
[Round "14"]
[Result "1-0"]
[White "Jacob Yuchtman"]
[Black "Nikolai V Krogius"]
[ECO "B40"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "77"]

1.e4 c5 2.Nf3 e6 3.d3 d5 4.Nbd2 Nc6 5.g3 g6 6.Bg2 Bg7 7.O-O
Nge7 8.exd5 exd5 9.c3 O-O 10.Nb3 Qb6 11.Re1 a5 12.Be3 d4
13.cxd4 cxd4 14.Nfxd4 Nxd4 15.Bxd4 Bxd4 16.Nxd4 Qxd4 17.Rxe7
Qxb2 18.d4 Bg4 19.Rxb7 Qxb7 20.Bxb7 Bxd1 21.Bxa8 Rxa8 22.Rxd1
Rb8 23.d5 Kf8 24.d6 Ke8 25.Re1+ Kf8 26.Kg2 Rd8 27.Rd1 Ke8
28.Re1+ Kf8 29.Rd1 Ke8 30.Rd5 Kd7 31.Rxa5 Kxd6 32.Ra3 Rb8
33. Rd3+ Kc6 34.Rc3+ Kd6 35.a4 Rb4 36.Ra3 Kc6 37.a5 Kb7 38.Re3
Ka6 39.Re7 1-0

[Event "Tbilisi ½f-USSR ch"]
[Site "GEO"]
[Date "1956.??.??"]
[EventDate "?"]
[Round "15"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Bukhuti Gurgenidze"]
[ECO "B36"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "48"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Nf6 6.Nc3 Nxd4
7.Qxd4 d6 8. Qd2 Bg7 9.Bd3 Nd7 10.b3 Nc5 11.Bb2 O-O 12.O-O a6
13.Be2 Bd7 14.b4 Ne6 15. Nd5 Bxb2 16.Qxb2 Bc6 17.Rad1 a5 18.a3
axb4 19.axb4 Bxd5 20.exd5 Nf4 21. Bf3 Rc8 22.Qd4 e5 23.dxe6
Nxe6 24.Qxd6 Rxc4 1/2-1/2

[Event "Tbilisi ½f-USSR ch"]
[Site "GEO"]
[Date "1956.??.??"]
[EventDate "?"]
[Round "16"]
[Result "0-1"]
[White "Tamas Georgadze"]
[Black "Nikolai V Krogius"]
[ECO "B43"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "92"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.Be2 b5 7.O-O
Bb7 8.Bf3 d6 9.a4 bxa4 10.Rxa4 Nd7 11.g3 Ngf6 12.Qe2 Nb6
13.Ra1 Be7 14.Nb3 Nc4 15. Ra4 Rc8 16.Bg2 O-O 17.Rd1 Rfe8
18.Nd2 Nb6 19.Ra1 d5 20.exd5 Nbxd5 21.Ndb1 h6 22.Bd2 Bc5
23.Ne4 Nxe4 24.Bxe4 Nf6 25.Bxb7 Qxb7 26.Nc3 Qxb2 27.Ra2 Qb7
28.Qxa6 Qf3 29.Qe2 Bxf2+ 30.Qxf2 Qxf2+ 31.Kxf2 Rxc3 32.Bxc3
Ne4+ 33.Ke3 Nxc3 34.Rda1 Nxa2 35.Rxa2 f5 36.c4 e5 37.c5 Rc8
38.Rc2 Kf7 39.Kd3 Ke6 40. Kc4 g5 41.Rd2 f4 42.g4 e4 43.Rd6+
Ke7 44.Rd5 e3 45.Kd3 Ra8 46.c6 Rd8 0-1

[Event "Tbilisi ½f-USSR ch"]
[Site "GEO"]
[Date "1956.??.??"]
[EventDate "?"]
[Round "17"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Sultan Khalilbeili"]
[ECO "D35"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "42"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 Be7 6.e3 O-O 7.Qc2
h6 8.Bh4 b6 9.Nf3 Be6 10.Be2 Nbd7 11.O-O c5 12.Rad1 Qc7 13.Ba6
cxd4 14.Nxd4 Nc5 15.Bg3 Qd8 16.Bb5 a6 17.Bc6 Rc8 18.f3 Bd7
19.Bxd7 Qxd7 20.e4 dxe4 21.Qe2 e3 1/2-1/2

[Event "Leningrad ch-SU"]
[Site "Leningrad ch-SU"]
[Date "1957.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Nikolai V Krogius"]
[Black "Boris Spassky"]
[ECO "B28"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "81"]

1. e4 c5 2. Nf3 a6 3. g3 g6 4. Bg2 Bg7 5. O-O Nc6 6. c3 e5
7. d3 d6 8. Na3 Nge7 9. Be3 O-O 10. d4 exd4 11. cxd4 d5
12. exd5 Nxd5 13. Bg5 Qb6 14. Nc4 Qb5 15. Nfd2 cxd4 16. Nd6
Qc5 17. N6e4 Qa7 18. Rc1 Be6 19. Nc5 Nc3 20. bxc3 Qxc5 21. Ne4
Qa7 22. cxd4 Qxd4 23. Rb1 b5 24. a3 Bc4 25. Re1 h6 26. Be3
Qxd1 27. Rexd1 Rad8 28. Bc5 Rxd1+ 29. Rxd1 Rd8 30. Rxd8+ Nxd8
31. Be7 Ne6 32. Nf6+ Kh8 33. f4 Nd4 34. Be4 a5 35. Ne8 Ne2+
36. Kf2 Bd4+ 37. Kf3 Nc3 38. Bc2 f5 39. g4 Bd5+ 40. Kg3 Ne2+
41. Kh4 0-1

[Event "Leningrad"]
[Site "19"]
[Date "1957.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Alexey Suetin"]
[Black "Nikolai V Krogius"]
[ECO "E52"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "82"]

1.c4 Nf6 2.Nc3 e6 3.d4 Bb4 4.e3 d5 5.Nf3 O-O 6.Bd3 b6 7.O-O
Bb7 8.Qc2 Nbd7 9.Bd2 dxc4 10.Bxc4 c5 11.a3 cxd4 12.axb4 dxc3
13.Bxc3 Ne4 14.Be1 Rc8 15.Qe2 Ng5 16.Nxg5 Qxg5 17.f3 Ra8 18.e4
Rfc8 19.Bb5 Qe7 20.Bc3 Nb8 21.Rfd1 Nc6 22.Qe1 e5 23.Rd5 f6
24.Rad1 Rd8 25.Bc4 Kh8 26.Rxd8+ Rxd8 27.Rxd8+ Qxd8 28.Bd5 Qd7
29.Qa1 a6 30.Qf1 Ne7 31.Bb3 b5 32.Qf2 h6 33.h4 Nc8 34.Kh2 Nd6
35.Qc5 Kh7 36.Ba2 Nc4 37.Bxc4 bxc4 38.Qxc4 Bc8 39.Qc5 Bb7
40.Qf8 Bc6 41.Qc5 Bb5 1/2-1/2

[Event "URS-ch sf"]
[Site "Leningrad"]
[Date "1957.??.??"]
[EventDate "?"]
[Round "9"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Vladimir Antoshin"]
[ECO "C87"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "36"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 d6
7.Bxc6+ bxc6 8.d4 Nd7 9.Nbd2 f6 10.Nc4 Nb6 11.Na5 Bd7 12.c4
O-O 13.c5 Nc8 14.Be3 Na7 15.d5 dxc5 16.Nb7 Qb8 17.Nxc5 Bxc5
18.Bxc5 Rd8 1/2-1/2

[Event "URS-ch sf"]
[Site "Leningrad"]
[Date "1957.??.??"]
[EventDate "?"]
[Round "14"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Konstantin Klaman"]
[ECO "D16"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "66"]

1.d4 Nf6 2.Nf3 d5 3.c4 c6 4.Nc3 dxc4 5.a4 Bg4 6.Ne5 Bh5 7.Nxc4
Nbd7 8.g3 e6 9.Bg2 Bb4 10.O-O O-O 11.a5 Nd5 12.Bd2 Re8 13.Ne4
N7f6 14.Nxf6+ Qxf6 15.Bxb4 Nxb4 16.Qd2 Qe7 17.Ra4 Na6 18.e4
Red8 19.e5 Rab8 20.Nd6 Nc7 21.a6 Nxa6 22.Bxc6 bxc6 23.Rxa6 Bf3
24.Rfa1 Rd7 25.R1a3 Bd5 26.f4 f5 27.Qa5 Rxb2 28.Rxa7 Rxa7
29.Qxa7 Qxa7 30.Rxa7 Rb8 31.Rc7 Rb1+ 32.Kf2 Rb2+ 33.Ke3 h5
1/2-1/2

[Event "Leningrad"]
[Site "Leningrad"]
[Date "1957.??.??"]
[EventDate "?"]
[Round "12"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "S Zhukhovitsky"]
[ECO "B93"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "113"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 e5
7. Nf3 Nbd7 8. Bd3 Be7 9. O-O O-O 10. Kh1 b5 11. a3 Bb7
12. Qe2 Re8 13. Bd2 Qc7 14. Rae1 Nc5 15. Qf2 exf4 16. Bxf4 Bf8
17. Qh4 Ncxe4 18. Nxe4 Bxe4 19. Rxe4 Rxe4 20. Ng5 Rae8
21. Bxe4 Rxe4 22. Nxe4 Nxe4 23. c3 Qc4 24. Re1 f5 25. Be3 Qb3
26. Qh5 Qe6 27. Qe2 Be7 28. Kg1 d5 29. Rd1 Nxc3 30. bxc3 f4
31. Qh5 Qxe3+ 32. Kf1 Qe4 33. Qxd5+ Qxd5 34. Rxd5 Bxa3 35. Ke2
Be7 36. Kd3 Kf7 37. Rd7 Ke6 38. Ra7 Bf6 39. Rxa6+ Kd5 40. h3
Kc5 41. Ra8 Be5 42. Re8 Bf6 43. Re4 f3 44. g3 Kd5 45. Rf4 f2
46. Rxf2 Be5 47. g4 h6 48. Rf8 Bf6 49. Re8 Kd6 50. Kc2 Kd7
51. Rb8 Kc6 52. Kb3 Kc5 53. Rc8+ Kb6 54. c4 Kb7 55. Rc5 bxc4+
56. Rxc4 Kb6 57. Kc2 1-0

[Event "USSR ch sf"]
[Site "Leningrad"]
[Date "1957.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Eduard A Mnatsakanian"]
[ECO "A21"]
[WhiteElo "2485"]
[BlackElo "2293"]
[PlyCount "97"]

1. c4 e5 2. Nc3 d6 3. g3 Nc6 4. Bg2 g6 5. e3 Bd7 6. Nge2 Bg7
7. O-O h5 8. d4 h4 9. d5 Na5 10. Qd3 b6 11. e4 Nb7 12. Be3 Nc5
13. Qd2 a5 14. f3 hxg3 15. hxg3 Qe7 16. Kf2 f5 17. Rh1 Nf6
18. Rxh8+ Bxh8 19. Rh1 Bg7 20. Ke1 O-O-O 21. Nc1 fxe4 22. Nxe4
Ncxe4 23. fxe4 Nh5 24. Bf2 Bf6 25. Nd3 Bg5 26. Qc3 Rf8 27. c5
dxc5 28. Bxc5 bxc5 29. Qxa5 Kb8 30. Nxc5 Bc8 31. Qb5+ Ka7
32. Bh3 Qe8 33. Qa5+ Kb8 34. Qb4+ Ka7 35. Bxc8 Qxc8 36. Qa4+
Kb8 37. Nd7+ Kb7 38. Qb4+ Ka7 39. Nxf8 Qg4 40. Qa5+ Kb7
41. Qb5+ Ka7 42. Qe2 Qxe2+ 43. Kxe2 Nxg3+ 44. Kf3 Nxh1 45. Kg2
Bc1 46. b3 Bb2 47. Nxg6 Kb6 48. Ne7 Kc5 49. Nc6 1-0

[Event "URS-ch sf"]
[Site "Leningrad USSR"]
[Date "1957.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Aleksander S Nikitin"]
[Black "Nikolai V Krogius"]
[ECO "C96"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "53"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3
O-O 8.c3 d6 9.h3 Na5 10.Bc2 c5 11.d4 Bb7 12.d5 Bc8 13.Nbd2 Ne8
14.b4 Nb7 15.a4 Bd7 16.axb5 axb5 17.Rxa8 Qxa8 18.Nf1 g6 19.Bh6
Ng7 20.Qa1 Rc8 21.Qb2 Qb8 22.Ra1 Nh5 23.Ng3 Nf4 24.Bxf4 exf4
25.Ne2 Bf6 26.bxc5 Nxc5 27.Nfd4 1/2-1/2

[Event "URS-25ch"]
[Site "URS-25ch"]
[Date "1958.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "David Bronstein"]
[Black "Nikolai V Krogius"]
[ECO "E80"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "91"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 e5 6. Nge2 Nfd7
7. Be3 Bh6 8. Bf2 O-O 9. h4 c5 10. d5 Re8 11. g4 Na6 12. g5
Bg7 13. Ng3 Nc7 14. Be3 Nf8 15. Qc2 Rb8 16. a3 b6 17. b4 f5
18. gxf6 Bxf6 19. Qh2 h5 20. b5 Nh7 21. Ra2 Kh8 22. Rg2 Qe7
23. Bd3 Bd7 24. Kd2 Rg8 25. Nge2 Rbe8 26. Rhg1 Qf7 27. Kc2 Bc8
28. Nc1 Ref8 29. Be2 Bd7 30. Bd2 Qe7 31. Nd3 Be8 32. f4 Bf7
33. fxe5 dxe5 34. Nd1 a6 35. Bc3 Re8 36. a4 Rgf8 37. Rf1 Bg7
38. Bxh5 axb5 39. axb5 Nxb5 40. cxb5 c4 41. Nb4 gxh5 42. Rxg7
Kxg7 43. Nc6 Qd6 44. Nxe5 Nf6 45. Rxf6 Qxf6 46. Nd7 1-0

[Event "Riga"]
[Site "Riga"]
[Date "1958.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Efim Geller"]
[Black "Nikolai V Krogius"]
[ECO "E40"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "113"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 d5 5.a3 Be7 6.Nf3 O-O 7.Bd3 c5
8.O-O Nc6 9.dxc5 dxc4 10.Bxc4 Bxc5 11.b4 Bd6 12.Bb2 a6 13.Qe2
b5 14.Bd3 Bb7 15.Rfd1 Qe7 16.Ne4 Nxe4 17.Bxe4 f5 18.Bc2 e5
19.e4 Nd4 20.Bxd4 exd4 21.Rxd4 Rae8 22.Re1 Bb8 23.Qd2 Qf6
24.Bb3+ Kh8 25.Bd5 fxe4 26.Rexe4 Rxe4 27.Rxe4 Bc8 28.Qe1 g6
29.Re8 Bd6 30.Rxf8+ Bxf8 31.h4 Kg7 32.g3 Be7 33.Qe3 Qd6
34.Qc3+ Bf6 35.Qxc8 Qxd5 36.Qc7+ Kg8 37.Qc8+ Kg7 38.Qc7+ Kg8
39.Kg2 Qe6 40.Qb7 h6 41.Qa8+ Kf7 42.Qb7+ Kg8 43.Nd2 Bb2 44.Qf3
Qf7 45.Qa8+ Kh7 46.Qxa6 Qd5+ 47.Nf3 g5 48.hxg5 hxg5 49.Qe6
Qxe6 50.Nxg5+ Kg6 51.Nxe6 Bxa3 52.Nd4 Bxb4 53.f4 Bc5 54.Nxb5
Be3 55.Kf3 Bc1 56.g4 Bb2 57.Nd6 1-0

[Event "Riga (Latvia)"]
[Site "It"]
[Date "1958.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Aivars Gipslis"]
[ECO "B43"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "44"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.f4 Bb4 7.Bd2
Nc6 8.Nxc6 bxc6 9.Qg4 Bf8 10.Bd3 Nf6 11.Qg3 d5 12.O-O Bc5+
13.Kh1 O-O 14.Rae1 dxe4 15.Nxe4 Nxe4 16.Rxe4 Rd8 17.Re5 Rd5
18.Bc3 Bf8 19.Qh4 h6 20.Rf3 Qd8 21.Qe1 Ra7 22.Rg3 c5 1/2-1/2

[Event "Sochi"]
[Site "Sochi"]
[Date "1958.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Viktor Korchnoi"]
[ECO "B04"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "41"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 5. Ng5 f6 6. c4 Nb6
7. exf6 exf6 8. Nf3 Bg4 9. Be2 Bg7 10. O-O O-O 11. Nc3 Nc6
12. c5 dxc5 13. dxc5 Qxd1 14. Rxd1 Nd7 15. Be3 Nde5 16. Nd5
Rf7 17. Nxe5 Nxe5 18. f3 Be6 19. Nf4 Bc4 20. Bxc4 Nxc4 21. Bd4
1/2-1/2

[Event "URS-ch25 Riga ,URS-c"]
[Site "URS-ch25 Riga ,URS-c"]
[Date "1958.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Nikolai V Krogius"]
[Black "Viktor Korchnoi"]
[ECO "B43"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "82"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Qc7
7. O-O Bb7 8. Qe2 Nc6 9. Nxc6 dxc6 10. a4 b4 11. Nd1 c5
12. Ne3 Ne7 13. b3 Nc6 14. Bb2 Bd6 15. h3 Be5 16. Bxe5 Nxe5
17. f4 Nc6 18. e5 Nd4 19. Qh5 O-O-O 20. Nc4 Nxb3 21. Nd6+ Rxd6
22. exd6 Qc6 23. d7+ Kc7 24. Qe5+ Kxd7 25. Qxg7 Nxa1 26. f5
Qxg2+ 27. Qxg2 Bxg2 28. fxe6+ fxe6 29. Kxg2 c4 30. Be4 Nxc2
31. Bxc2 b3 32. Be4 Kd6 33. Rc1 Kc5 34. Kf3 Kb4 35. Ke3 c3
36. Rb1 Ka3 37. Ra1+ Kb2 38. Rb1+ Ka2 39. Rg1 c2 40. Kd2 Rd8+
41. Kc1 Rc8 0-1

[Event "Riga"]
[Site "It"]
[Date "1958.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Petrosian"]
[ECO "B81"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "51"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 Nc6
7. g5 Nd7 8. Be3 Nb6 9. Qd2 Ne5 10. O-O-O a6 11. f4 Nec4
12. Bxc4 Nxc4 13. Qe2 b5 14. f5 g6 15. Rhf1 Bg7 16. h4 Bd7
17. f6 Bf8 18. h5 Qc7 19. hxg6 hxg6 20. Rh1 Rxh1 21. Rxh1 b4
22. Nd1 e5 23. Rh8 O-O-O 24. Nb3 Be6 25. Bg1 Qc6 26. Rh4
1/2-1/2

[Event "Riga (Latvia)"]
[Site "It"]
[Date "1958.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Lev Polugaevsky"]
[ECO "B09"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "37"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 Nf6 5. Nf3 c5 6. Bb5+ Bd7
7. e5 Ng4 8. e6 Bxb5 9. exf7+ Kd7 10. Nxb5 Qa5+ 11. Nc3 cxd4
12. Nxd4 Qh5 13. Qf3 Nc6 14. Nde2 Nh6 15. Qxh5 gxh5 16. Be3
Raf8 17. O-O-O Nf5 18. Bf2 Rxf7 19. g3 1/2-1/2

[Event "Riga"]
[Site "Riga"]
[Date "1958.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Boris Spassky"]
[Black "Nikolai V Krogius"]
[ECO "E56"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "99"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. e3 O-O 6. Bd3 d5
7. O-O Nc6 8. a3 Ba5 9. Ne2 dxc4 10. Bxc4 Bb6 11. dxc5 Bxc5
12. b4 Qxd1 13. Rxd1 Be7 14. Bb2 b6 15. Nf4 Bb7 16. Ng5 Nd8
17. Rac1 h6 18. Ngxe6 fxe6 19. Nxe6 Rc8 20. Bb3 Nf7 21. Nxf8
Kxf8 22. Rxc8+ Bxc8 23. Rc1 Nd6 24. f3 Nfe8 25. e4 Bg5 26. f4
Bxf4 27. Rf1 g5 28. g3 Bh3 29. Rf2 Nxe4 30. Re2 Nd2 31. gxf4
Nxb3 32. Re3 Bg4 33. Rxb3 gxf4 34. Be5 f3 35. h3 Bh5 36. Bb8
a6 37. b5 Bf7 38. Rxf3 axb5 39. Rf5 Ke7 40. Rxb5 Be6 41. h4
Ng7 42. Rxb6 Nf5 43. Rb5 Kd7 44. a4 Ne7 45. Rb7+ Kd8 46. a5
Nc6 47. a6 Bc8 48. Bf4 Nd4 49. Kf2 Ne6 50. Rb8 1-0

[Event "URS-ch25 Riga ,URS-c"]
[Site "URS-ch25 Riga ,URS-c"]
[Date "1958.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Alexey Suetin"]
[ECO "A04"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "74"]

1.e4 c5 2.Nf3 e6 3.d3 Nc6 4.g3 g6 5.Bg2 Bg7 6.O-O Nge7 7.c3 d5
8.Nbd2 O-O 9.Re1 b5 10.exd5 Nxd5 11.Nb3 Qb6 12.a4 bxa4 13.Nbd2
Rd8 14.Qxa4 Qc7 15.Ne4 Nb6 16.Qc2 c4 17.dxc4 Nxc4 18.Bg5 Rd5
19.b3 Nb6 20.Bf6 Nb4 21.Qe2 Nd3 22.Red1 Nc5 23.Bxg7 Kxg7
24.Rxd5 exd5 25.Nxc5 Qxc5 26.Qe5+ Kg8 27.Ng5 Bf5 28.g4 Bxg4
29.Ne4 Nd7 30.Nxc5 Nxe5 31.Bxd5 Rc8 32.b4 Rd8 33.c4 Bf3
34.Bxf3 Nxf3+ 35.Kg2 Ne5 36.Rxa7 Nxc4 37.Nd7 Nd6 1/2-1/2

[Event "Riga"]
[Site "Riga"]
[Date "1958.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Mark Taimanov"]
[Black "Nikolai V Krogius"]
[ECO "A42"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "80"]

1.c4 g6 2.Nc3 Bg7 3.d4 d6 4.e4 e5 5.Nf3 Bg4 6.d5 Bxf3 7.Qxf3
Nd7 8.h4 h5 9.Bg5 Bf6 10.Qe3 Be7 11.Qd2 Ngf6 12.g3 c5 13.Be2
a6 14.f3 Qc7 15.a3 Ng8 16.b4 Bxg5 17.hxg5 Ne7 18.Rb1 Kf8 19.f4
Kg7 20.bxc5 Qxc5 21.Rxb7 Rad8 22.fxe5 dxe5 23.Rb4 Nc8 24.Na4
Qa7 25.Qc3 Nd6 26.c5 a5 27.Rb5 Nxb5 28.Bxb5 Rb8 29.Bxd7 Rb1+
30.Kf2 Rxh1 31.Qxe5+ Kh7 32.Qe7 Rg8 33.Kg2 Rc1 34.Nb6 Qa6
35.Qxf7+ Rg7 36.Qf3 Rxc5 37.Bf5 Qxb6 38.Qxh5+ Kg8 39.Qh6 Rc2+
40.Kf3 Rf2+ 0-1

[Event "Riga URS ch"]
[Site "17"]
[Date "1958.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Mikhail Tal"]
[ECO "B45"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "101"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Ndb5 Bb4
7.a3 Bxc3+ 8.Nxc3 d5 9.Bd3 O-O 10.O-O h6 11.exd5 exd5 12.Bf4
d4 13.Nb5 Nd5 14.Bg3 Be6 15.Re1 Qd7 16.h3 Rad8 17.Qf3 Nde7
18.Nd6 Bd5 19.Qh5 f5 20.Nc4 f4 21.Bh4 Bf7 22.Qb5 Bd5 23.Bxe7
Nxe7 24.Qc5 Nf5 25.Re5 b6 26.Bxf5 bxc5 27.Bxd7 Rxd7 28.b3 Rc8
29.Rae1 Bf7 30.Re7 Rxe7 31.Rxe7 Bg6 32.Re2 Re8 33.Rxe8+ Bxe8
34.Ne5 g5 35.Kf1 Kg7 36.Ke1 Bb5 37.a4 Be8 38.Kd2 Kf6 39.Ng4+
Kg6 40.f3 h5 41.Ne5+ Kf5 42.Nd3 c4 43.bxc4 Bxa4 44.Nc5 Be8
45.Nb3 Ke5 46.Kd3 Bg6+ 47.Kd2 Bf5 48.Na5 Bd7 49.Nb3 g4 50.hxg4
hxg4 51.Nc5 1/2-1/2

[Event "URS 25ch Riga"]
[Site "URS 25ch Riga"]
[Date "1958.??.??"]
[EventDate "?"]
[Round "03"]
[Result "0-1"]
[White "Semyon Abramovich Furman"]
[Black "Nikolai V Krogius"]
[ECO "D98"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "80"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4
O-O 7. e4 Bg4 8. Be3 Nfd7 9. O-O-O Nc6 10. h3 Bxf3 11. gxf3
Nb6 12. Qc5 f5 13. Ne2 Qd6 14. e5 Qd5 15. b3 Rfd8 16. Nf4
Qxc5+ 17. dxc5 Rxd1+ 18. Kxd1 Nd7 19. Ne6 f4 20. Bxf4 Ndxe5
21. Be3 Nxf3 22. Bg2 Nfd4 23. Bxc6 Nxc6 24. Nxc7 Rd8+ 25. Ke2
Kf7 26. Rd1 Rxd1 27. Kxd1 Be5 28. Nb5 Ke6 29. Kd2 Kf5 30. Nc3
g5 31. a3 g4 32. h4 h5 33. Bg5 Bd4 34. Nd5 Bxc5 35. b4 Bxf2
36. b5 Nd4 37. Nxe7+ Ke6 38. Ng6 Kf5 39. Ne7+ Ke4 40. Bf6 g3
0-1

[Event "URS 25ch Riga"]
[Site "URS 25ch Riga"]
[Date "1958.??.??"]
[EventDate "?"]
[Round "07"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Tolush"]
[ECO "C05"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "109"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6
7. Ne2 Qb6 8. Nf3 cxd4 9. cxd4 f6 10. exf6 Nxf6 11. O-O Bd6
12. Bf4 Bxf4 13. Nxf4 O-O 14. Re1 Ne4 15. g3 Qxb2 16. Bxe4
dxe4 17. Rxe4 Bd7 18. d5 exd5 19. Qxd5+ Rf7 20. Rae1 h6
21. Nd3 Qb6 22. Nc5 Qc7 23. Ne6 Qa5 24. Qb3 Qb6 25. Qd5 Qa5
26. Qb3 Qb6 27. Qd5 Nb4 28. Qb3 Na6 29. Qa3 Rc8 30. Nf4 Rc2
31. Nd4 Rd2 32. Qc3 Rxa2 33. Qc4 Qb2 34. Re8+ Kh7 35. R8e2 Re7
36. Rxb2 Rxe1+ 37. Kg2 Rxb2 38. Nd3 Reb1 39. Nxb2 Rxb2 40. Qd5
Be8 41. h4 Rb6 42. Qe4+ Bg6 43. Qe5 Rf6 44. f4 Nb4 45. f5 Bf7
46. g4 Nc6 47. Nxc6 Rxc6 48. g5 a6 49. Kg3 b5 50. Qe7 Kg8
51. Qd8+ Kh7 52. Qd7 Rc3+ 53. Kf2 Rc2+ 54. Ke1 Bh5 55. g6+ 1-0

[Event "URS 25ch Riga"]
[Site "URS 25ch Riga"]
[Date "1958.??.??"]
[EventDate "?"]
[Round "09"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Isaac Boleslavsky"]
[ECO "C07"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "86"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nf6 6. Bb5+
Bd7 7. Bxd7+ Nbxd7 8. O-O Be7 9. dxc5 Nxc5 10. Nb3 O-O
11. Nxc5 Bxc5 12. Bg5 Rc8 13. c3 Rc6 14. Qd3 h6 15. Bxf6 Rxf6
16. Rad1 Qb6 17. b4 Bd6 18. Qxd5 Rc8 19. Rd3 Bb8 20. Qd7 Qc6
21. Rfd1 Kh7 22. Kf1 Qe4 23. Nd2 Qh4 24. Ne4 Qxe4 25. Qxc8
Bxh2 26. Qh3 Bc7 27. Rd4 Qe5 28. Re1 Qg5 29. Qg4 Qb5+ 30. Kg1
Qa4 31. Qe4+ g6 32. Qe7 Qc6 33. Qc5 Bb6 34. Qxc6 bxc6 35. Rd2
c5 36. Re4 cxb4 37. cxb4 Kg7 38. a4 Rc6 39. g3 a5 40. b5 Rf6
41. Kg2 Bc5 42. Rc2 Ba7 43. Rf4 Rxf4 1-0

[Event "URS 25ch Riga"]
[Site "URS 25ch Riga"]
[Date "1958.??.??"]
[EventDate "?"]
[Round "10"]
[Result "1/2-1/2"]
[White "Yuri Averbakh"]
[Black "Nikolai V Krogius"]
[ECO "C92"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "67"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5
7. Bb3 O-O 8. c3 d6 9. h3 Nd7 10. d4 Nb6 11. Be3 Rb8 12. Nbd2
exd4 13. cxd4 Nb4 14. Nf1 c5 15. a3 Nc6 16. dxc5 dxc5 17. Bf4
Rb7 18. Bd5 Nxd5 19. exd5 Na5 20. Ne5 Bf6 21. Nc6 Qb6 22. Bd6
Nxc6 23. dxc6 Qxc6 24. Bxf8 Kxf8 25. Qh5 h6 26. Rad1 Be6
27. Ng3 Rb8 28. Ne4 Be7 29. Qe5 Re8 30. Qf4 Ra8 31. Re3 Rc8
32. h4 Qc7 33. Nd6 Bf6 34. Qf3 1/2-1/2

[Event "URS 25ch Riga"]
[Site "URS 25ch Riga"]
[Date "1958.??.??"]
[EventDate "?"]
[Round "14"]
[Result "1/2-1/2"]
[White "Anatoly Bannik"]
[Black "Nikolai V Krogius"]
[ECO "C96"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "63"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5
7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Bb7 12. Nbd2
cxd4 13. cxd4 Rc8 14. d5 Nc4 15. Nxc4 Rxc4 16. Bd3 Rc8 17. a4
bxa4 18. Rxa4 Ra8 19. Be3 Qd7 20. Nd2 Rfb8 21. Nc4 Bd8 22. Qa1
Bc8 23. Rc1 Ne8 24. Rc3 f5 25. exf5 Nf6 26. Na5 e4 27. Be2
Bxa5 28. Rxa5 Qxf5 29. Qc1 Bb7 30. Bd4 Rc8 31. g4 Qg6 32. Bxf6
1/2-1/2

[Event "URS-ch25"]
[Site "Riga"]
[Date "1958.01.13"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "G Borisenko"]
[ECO "C77"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "54"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.Bxc6 dxc6 6.d3 Nd7
7.Nbd2 Bd6 8.b3 b5 9.Bb2 Qe7 10.O-O O-O 11.d4 c5 12.d5 Nb6
13.Re1 Bd7 14.Nf1 c6 15.Ne3 cxd5 16.Nxe5 dxe4 17.Nxd7 Qxd7
18.Bxg7 Kxg7 19.Qxd6 Qxd6 20.Nf5+ Kg6 21.Nxd6 f5 22.g4 fxg4
23.Rxe4 h5 24.Re6+ Rf6 25.Rxf6+ Kxf6 26.Ne4+ Ke5 27.Nxc5 Kd4
1/2-1/2

[Event "26. URS-ch"]
[Site "Riga LAT"]
[Date "1958.??.??"]
[EventDate "?"]
[Round "12"]
[Result "1/2-1/2"]
[White "Bukhuti Gurgenidze"]
[Black "Nikolai V Krogius"]
[ECO "C77"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "76"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 b5 6. Bb3 Be7
7. d4 d6 8. dxe5 Nxe5 9. Nxe5 dxe5 10. O-O O-O 11. Rd1 Bd7
12. a4 Qc8 13. Bg5 Rd8 14. Nc3 c6 15. h3 Qc7 16. Qe3 Be8
17. Rxd8 Rxd8 18. axb5 axb5 19. Ne2 h6 20. Bh4 Ng4 21. Qg3
Bxh4 22. Qxh4 Nf6 23. Ng3 Bd7 24. Re1 Be6 25. Bxe6 fxe6
26. Nh5 Qf7 27. Nxf6+ Qxf6 28. Qg4 Rd2 29. Re2 Rd1+ 30. Kh2
Qf4+ 31. g3 Qxg4 32. hxg4 Kf7 33. Kg2 Ke7 34. Kf3 Rh1 35. b3
Rd1 36. Ke3 c5 37. Rd2 Ra1 38. Re2 Rc1 1/2-1/2

[Event "25th Soviet Championship"]
[Site "Riga"]
[Date "1958.??.??"]
[EventDate "?"]
[Round "16"]
[Result "0-1"]
[White "Alexander Kotov"]
[Black "Nikolai V Krogius"]
[ECO "D83"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "194"]

1.c4 Nf6 2.d4 g6 3.Nc3 d5 4.Bf4 Bg7 5.e3 O-O 6.Qb3 c5 7.cxd5
cxd4 8.exd4 Nbd7 9.Be2 Nb6 10.Bf3 e6 11.d6 Ne8 12.Nge2 Nxd6
13.O-O Ndc4 14.Rad1 Bd7 15.Qc2 Bc6 16.Bxc6 bxc6 17.Ne4 Qd5
18.Bh6 Nd6 19.Bxg7 Kxg7 20.Nxd6 Qxd6 21.Nc3 Nd7 22.Rfe1 Nf6
23.Na4 Rad8 24.Nc5 Qb8 25.a3 Rd5 26.Na6 Qb6 27.Nb4 Rxd4
28.Rxd4 Qxd4 29.Rd1 Qb6 30.Rd6 a5 31.Rxc6 Qb8 32.Nd3 Rd8 33.g3
Qb5 34.Nf4 Qe5 35.Ne2 Rb8 36.Nc3 Qe1+ 37.Kg2 Rd8 38.Qe2 Qxe2
39.Nxe2 Rd2 40.Kf1 Rxb2 41.Rc5 a4 42.Rc4 Nd5 43.Nd4 Nb6 44.Rc7
Kf6 45.h4 h6 46.Ra7 Rd2 47.Ne2 Ra2 48.Nc3 Rxa3 49.Nb5 Ra1+
50.Ke2 Nc4 51.f4 Rb1 52.Nc3 Rb3 53.Ne4+ Kg7 54.Nc5 Rxg3
55.Nxe6+ Kg8 56.Ra8+ Kh7 57.Rxa4 fxe6 58.Rxc4 Kg7 59.h5 g5
60.fxg5 Rxg5 61.Rh4 Rf5 62.Ke3 Kf6 63.Rh1 Kg5 64.Kd4 Ra5
65.Rh2 Kg4 66.Ke4 Kg3 67.Rh1 Kg2 68.Rb1 Rxh5 69.Rb6 Rh1 70.Kf4
Re1 71.Rb2+ Kh3 72.Rb3+ Kh4 73.Rb2 Rf1+ 74.Ke4 Kg3 75.Rb3+ Kg4
76.Rb8 Re1+ 77.Kd3 h5 78.Rg8+ Kf4 79.Rf8+ Ke5 80.Rh8 Rh1
81.Ke3 h4 82.Rh5+ Kd6 83.Kf3 h3 84.Kg3 e5 85.Rh6+ Kd5 86.Ra6
Rg1+ 87.Kxh3 e4 88.Ra2 Rg8 89.Ra3 Kd4 90.Ra4+ Ke3 91.Ra7 Kf3
92.Rf7+ Ke2 93.Re7 e3 94.Ra7 Kf2 95.Rf7+ Ke1 96.Ra7 e2 97.Rd7
Rg5 0-1

[Event "Ch URS"]
[Site "Tbilisi"]
[Date "1959.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "David Bronstein"]
[Black "Nikolai V Krogius"]
[ECO "B32"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "49"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qc7 5. c4 Nf6 6. Nc3
Nxe4 7. Ndb5 Qa5 8. b4 Qxb4 9. Bd2 Nxd2 10. Nc7+ Kd8 11. Qxd2
Rb8 12. N7d5 Qa4 13. Be2 e6 14. O-O exd5 15. cxd5 Bb4 16. Rac1
Ne7 17. Qf4 Bxc3 18. Qxb8 Nxd5 19. Bf3 Nb6 20. Qf4 f6 21. Qg3
g5 22. Bh5 Be5 23. f4 gxf4 24. Qg7 f5 25. Qg5+ 1-0

[Event "Tbilisi"]
[Site "Tbilisi"]
[Date "1959.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Efim Geller"]
[Black "Nikolai V Krogius"]
[ECO "D42"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "48"]

1.c4 e6 2.Nc3 d5 3.d4 Nf6 4.cxd5 Nxd5 5.Nf3 c5 6.e3 Nc6 7.Bd3
Be7 8.O-O O-O 9.Re1 b6 10.Nxd5 exd5 11.dxc5 bxc5 12.e4 Be6
13.exd5 Bxd5 14.Qc2 Bxf3 15.gxf3 Nd4 16.Qd1 Bd6 17.Kg2 Qh4
18.h3 f5 19.Be3 Rf6 20.Rh1 Rg6+ 21.Kf1 Rf6 22.Kg2 Rg6+ 23.Kf1
Rf6 24.Kg2 Rg6+ 1/2-1/2

[Event "Tbilisi ch-SU (13.01.59)"]
[Site "03"]
[Date "1959.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Paul Keres"]
[Black "Nikolai V Krogius"]
[ECO "B48"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "160"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Qc7 6.Be3 Nf6
7.Be2 a6 8.a3 Be7 9.O-O O-O 10.f4 d6 11.Qe1 Bd7 12.Qg3 Nxd4
13.Bxd4 Bc6 14.Rae1 Rfd8 15.Bd3 Ne8 16.Qh3 b5 17.Nd5 Qb7
18.Rf3 Bf8 19.Qh4 f5 20.Rh3 h6 21.exf5 e5 22.f6 Bxd5 23.Rg3 e4
24.Qxh6 Nxf6 25.Bxf6 exd3 26.cxd3 Re8 27.Rxe8 Rxe8 28.Qh5 Qf7
29.Qg5 Re1+ 30.Kf2 Qe6 31.Qh5 Rc1 32.Bc3 Bc6 33.h4 Qa2 34.Qe2
Qb3 35.Qg4 Qf7 36.h5 Qa7+ 37.Ke2 Qe7+ 38.Kf2 Bd5 39.h6 Qa7+
40.Ke2 Qe7+ 41.Kf2 Qa7+ 42.d4 Bc4 43.Re3 Rf1+ 44.Kg3 Rh1
45.hxg7 Qxg7 46.Qxg7+ Kxg7 47.Kg4 Kf7 48.g3 Bd5 49.Bb4 Be7
50.Re2 Bb3 51.Re3 Bd5 52.Kf5 Rh5+ 53.Kg4 Rh2 54.Bc3 Bc4 55.Kf5
Rh6 56.Re1 Rf6+ 57.Kg4 Rg6+ 58.Kh3 Be6+ 59.Kg2 Rh6 60.Rg1 Bd5+
61.Kf2 Rh2+ 62.Ke3 Bf6 63.g4 Bh4 64.Rf1 Bc4 65.Ra1 Rh3+ 66.Ke4
Bf2 67.f5 Be3 68.Bb4 Bg5 69.Re1 Rg3 70.Bxd6 Rxg4+ 71.Kf3 Rxd4
72.Be5 Bd5+ 73.Kg3 Rd3+ 74.Kg4 Bf6 75.Kf4 Rf3+ 76.Kg4 Rf2
77.Re3 Rg2+ 78.Kh3 Rg5 79.Bxf6 Kxf6 80.Rd3 Rxf5 0-1

[Event "URS-ch26 Tbilisi"]
[Site "URS-ch26 Tbilisi"]
[Date "1959.??.??"]
[EventDate "?"]
[Round "10"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Viktor Korchnoi"]
[ECO "E55"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "50"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O
7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 b6 10. Rd1 Bb7 11. dxc5 Bxc3
12. bxc3 bxc5 13. Bd3 Qc7 14. e4 c4 15. Bc2 Nc5 16. e5 Bxf3
17. gxf3 Nfd7 18. f4 Nb6 19. Rd4 Rfd8 20. Be3 Rac8 21. Rad1
Rxd4 22. Rxd4 Nd3 23. Bxd3 cxd3 24. Qxd3 h5 25. f5 Qxc3
1/2-1/2

[Event "URS-ch26 Tbilisi ;URS-ch"]
[Site "11"]
[Date "1959.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nezhmetdinov"]
[Black "Nikolai V Krogius"]
[ECO "B89"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "60"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 e6 7.Be3
Be7 8.Qe2 a6 9.O-O-O Qc7 10.h3 Na5 11.Bd3 b5 12.f4 Bb7 13.f5
e5 14.Nb3 O-O 15.Bg5 Rfc8 16.Bxf6 Bxf6 17.Nd2 Bg5 18.Kb1 b4
19.Nd5 Bxd5 20.exd5 Bxd2 21.Rxd2 f6 22.Be4 Nb7 23.g4 Nc5 24.h4
Kh8 25.g5 Rf8 26.Qe3 Qe7 27.Rg2 a5 28.Rhg1 Rac8 29.Rg3 Ra8
30.R3g2 Rac8 1/2-1/2

[Event "Ch URS"]
[Site "Tbilisi"]
[Date "1959.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Petrosian"]
[Black "Nikolai V Krogius"]
[ECO "D91"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "81"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. Bg5 Ne4 6. cxd5
Nxg5 7. Nxg5 e6 8. Nf3 exd5 9. e3 O-O 10. Bd3 Nc6 11. O-O Ne7
12. b4 Bf5 13. Bxf5 Nxf5 14. b5 Qd6 15. Qb3 Ne7 16. Rfc1 Kh8
17. Rc2 h6 18. Rac1 c6 19. Na4 Rab8 20. g3 Kh7 21. Nc5 Rfd8
22. bxc6 bxc6 23. Qa4 Qf6 24. Kg2 Ra8 25. Nb7 Re8 26. Na5 g5
27. h3 Qf5 28. Nxc6 Qe4 29. Rc5 f5 30. Qc2 Nxc6 31. Rxc6 f4
32. exf4 gxf4 33. g4 Bxd4 34. Qd2 Bg7 35. Re1 Qa4 36. Qxd5
Rxe1 37. Nxe1 Rf8 38. Nf3 Kh8 39. Rc7 a6 40. Qb7 Rg8 41. Nh4
1-0

[Event "Tbilisi Ch URS"]
[Site "Tbilisi Ch URS"]
[Date "1959.??.??"]
[EventDate "?"]
[Round "1"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Lev Polugaevsky"]
[ECO "B90"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "82"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6
7. O-O Be7 8. Bb3 O-O 9. f4 b5 10. a3 Bb7 11. f5 e5 12. Nde2
Nbd7 13. Ng3 Nc5 14. Bd5 Bxd5 15. exd5 a5 16. Bg5 Ncd7
17. Bxf6 Nxf6 18. Nce4 Qb6+ 19. Kh1 Nxe4 20. Nxe4 f6 21. c3
Rfc8 22. Qd3 Rc4 23. h3 Rac8 24. b3 R4c7 25. Rfb1 Rb7 26. a4
Rcb8 27. axb5 Qxb5 28. c4 Qd7 29. Qf3 Qc7 30. Ra3 Rb4 31. Rd1
a4 32. bxa4 Qxc4 33. Nc3 Ra8 34. a5 Bd8 35. Rda1 Kf8 36. Ra4
Rxa4 37. Rxa4 Qb3 38. a6 Bb6 39. Ra1 Bd4 40. Rc1 Rc8 41. Nd1
Qb8 1/2-1/2

[Event "Ch URS"]
[Site "Tbilisi"]
[Date "1959.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Boris Spassky"]
[ECO "C50"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "76"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. Nxe5 Nxe5 6. d4
c6 7. dxe5 Nxe4 8. Bd3 d5 9. exd6 Nf6 10. Qe2+ Be6 11. Bg5
Qxd6 12. Bxf6 gxf6 13. Nd2 Qe5 14. Ne4 Bb6 15. Kh1 O-O-O
16. a4 Kb8 17. a5 Bc7 18. f4 Qd4 19. Nc3 f5 20. a6 b5 21. Qf3
Qb6 22. Qh3 Qc5 23. Qf3 b4 24. Na4 Qd6 25. Qh3 Rhg8 26. Be2
Qd2 27. Bf3 Bc4 28. Rfd1 Qxf4 29. Rxd8+ Rxd8 30. Bxc6 Be2
31. Rg1 Rd1 32. g4 Rxg1+ 33. Kxg1 Qc1+ 34. Kf2 Qxc2 35. Qxh7
Bb5+ 36. Kg1 Qd1+ 37. Kf2 Qf1+ 38. Ke3 Qf4# 1-0

[Event "Ch URS"]
[Site "Tbilisi"]
[Date "1959.??.??"]
[EventDate "?"]
[Round "6"]
[Result "0-1"]
[White "Nikolai V Krogius"]
[Black "Boris Spassky"]
[ECO "C65"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "76"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. O-O Nf6 5. Nxe5 Nxe5 6. d4
c6 7. dxe5 Nxe4 8. Bd3 d5 9. exd6 Nf6 10. Qe2+ Be6 11. Bg5
Qxd6 12. Bxf6 gxf6 13. Nd2 Qe5 14. Ne4 Bb6 15. Kh1 O-O-O
16. a4 Kb8 17. a5 Bc7 18. f4 Qd4 19. Nc3 f5 20. a6 b5 21. Qf3
Qb6 22. Qh3 Qc5 23. Qf3 b4 24. Na4 Qd6 25. Qh3 Rhg8 26. Be2
Qd2 27. Bf3 Bc4 28. Rfd1 Qxf4 29. Rxd8+ Rxd8 30. Bxc6 Be2
31. Rg1 Rd1 32. g4 Rxg1+ 33. Kxg1 Qc1+ 34. Kf2 Qxc2 35. Qxh7
Bb5+ 36. Kg1 Qd1+ 37. Kf2 Qf1+ 38. Ke3 Qf4# 0-1

[Event "Tbilisi"]
[Site "Tbilisi"]
[Date "1959.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Nikolai V Krogius"]
[Black "Mark Taimanov"]
[ECO "B43"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "70"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.Bd3 Nc6 7.Be3
Nf6 8.O-O Ne5 9.h3 b5 10.Qe2 b4 11.Nd1 d5 12.Bf4 Bd6 13.Bxe5
Bxe5 14.Nf3 Bf4 15.exd5 Nxd5 16.Ne3 Nxe3 17.fxe3 Bh6 18.e4 O-O
19.e5 Bb7 20.Rae1 Qa5 21.Nh2 Rad8 22.h4 Rd4 23.Ng4 Bf4 24.Nf6+
gxf6 25.Bxh7+ Kxh7 26.Qh5+ Kg8 27.Qg4+ Bg5 28.Qxd4 Rd8 29.Qg4
Qc5+ 30.Rf2 Rd4 31.Qg3 Rxh4 32.exf6 Rf4 33.Rd1 Rxf6 34.Rd8+
Kg7 35.Rb8 Rxf2 0-1

[Event "Tbilisi URS ch"]
[Site "7"]
[Date "1959.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Mikhail Tal"]
[Black "Nikolai V Krogius"]
[ECO "C97"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "149"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3
O-O 8.c3 d6 9.h3 Na5 10.Bc2 c5 11.d4 Qc7 12.Nbd2 Bd7 13.Nf1
Rfe8 14.a4 Rad8 15.Bg5 Be6 16.Ne3 cxd4 17.cxd4 Nc4 18.axb5
Nxe3 19.Bxe3 axb5 20.d5 Bd7 21.Ra7 Qb8 22.Qa1 Rc8 23.Bd3 Rc7
24.Ra6 Rec8 25.Qa5 Bd8 26.Qb4 Ne8 27.Rea1 Rb7 28.Ba7 Qc7
29.Kh2 g6 30.Nd2 Bg5 31.Nb3 h5 32.Qe1 Kg7 33.Be3 Bxe3 34.Qxe3
Qd8 35.Na5 Rbc7 36.Nc6 Bxc6 37.dxc6 Rxc6 38.Rxc6 Rxc6 39.Bxb5
Rc5 40.Qd3 Nc7 41.Bc4 Qb8 42.Rb1 Nb5 43.Rf1 Nc7 44.Qc3 Nb5
45.Qb3 Qe8 46.Qd3 Nd4 47.f4 f6 48.b3 Rc7 49.Ra1 Qb8 50.Rf1 Ra7
51.Qg3 Qe8 52.Qf2 Qe7 53.Kh1 Rb7 54.Qd2 Qd8 55.Bd5 Rc7 56.Ra1
Qd7 57.fxe5 dxe5 58.Qa5 Qc8 59.Bc4 h4 60.Rf1 Qd8 61.Kh2 Rd7
62.Qe1 Nc2 63.Qxh4 Ne3 64.Rf3 Nxc4 65.bxc4 Rc7 66.Qg4 Rxc4
67.Rg3 Qe8 68.h4 Rc7 69.Qf5 Qf7 70.h5 g5 71.h6+ Kh8 72.Rh3 Qf8
73.Rf3 g4 74.Qxg4 Rh7 75.Rxf6 1-0

[Event "URS-ch26"]
[Site "Tbilisi"]
[Date "1959.01.09"]
[EventDate "?"]
[Round "16"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Jacob Yuchtman"]
[ECO "A56"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "147"]

1.c4 Nf6 2.d4 c5 3.d5 g6 4.Nc3 d6 5.e4 Bg7 6.Nf3 O-O 7.Be2 e5
8.O-O Ne8 9.a3 f5 10.b4 Na6 11.Rb1 f4 12.Ne1 Nf6 13.Nd3 b6
14.Bd2 g5 15.f3 h5 16.Be1 Rf7 17.Qa4 Ne8 18.g4 fxg3 19.hxg3
Nac7 20.Bd2 Bd7 21.Qc2 Qf6 22.Kg2 Qg6 23.bxc5 bxc5 24.Be3 Nf6
25.Nf2 g4 26.fxg4 h4 27.gxh4 Bxg4 28.Bg5 Bd7 29.Qd3 Raf8
30.Qg3 Nce8 31.Rbe1 Nh5 32.Bxh5 Qxh5 33.Nd3 Nf6 34.Rf2 Qh7
35.Kg1 Nh5 36.Qg2 Rxf2 37.Nxf2 Nf4 38.Qg3 Qh5 39.Re3 Kh7
40.Kh1 Ng6 41.Nb5 Bh6 42.Bxh6 Qxh6 43.Rf3 Qc1+ 44.Kh2 Nf4
45.Nd3 Qd1 46.Nxf4 exf4 47.Qf2 Qc1 48.Rc3 Qa1 49.Qg1 Qxg1+
50.Kxg1 Bxb5 51.cxb5 Re8 52.Rc4 Kg7 53.Ra4 Re7 54.Ra6 Rd7
55.Kf2 Kf6 56.Kf3 Ke5 57.a4 Rh7 58.a5 c4 59.Rc6 Rxh4 60.Rxc4
Rh3+ 61.Kf2 Rb3 62.Rc7 Kxe4 63.Re7+ Kxd5 64.Rxa7 Rxb5 65.Kf3
Rb4 66.Rf7 Ra4 67.Rxf4 Ra3+ 68.Ke2 Kc5 69.Kd2 Rxa5 70.Rh4 Ra3
71.Rg4 d5 72.Rh4 Rg3 73.Rf4 Rg2+ 74.Ke3 1/2-1/2

[Event "URS-ch26"]
[Site "Tbilisi"]
[Date "1959.01.09"]
[EventDate "?"]
[Round "12"]
[Result "0-1"]
[White "Nikolai V Krogius"]
[Black "Ratmir Kholmov"]
[ECO "C43"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "74"]

1.e4 e5 2.Nf3 Nf6 3.d4 exd4 4.e5 Ne4 5.Qxd4 d5 6.exd6 Nxd6
7.Nc3 Nc6 8.Qf4 g6 9.Bd2 Bg7 10.O-O-O Be6 11.Bd3 O-O 12.h4 Qf6
13.Qh2 Ne5 14.Bg5 Nxf3 15.gxf3 Qxf3 16.h5 Qxh5 17.Qxh5 gxh5
18.Rxh5 f5 19.Rdh1 Rf7 20.Bf4 Ne4 21.Bxe4 fxe4 22.Be3 Bf5
23.Nd5 Bg6 24.Rg5 Raf8 25.a3 c6 26.Nc3 b6 27.Ne2 Rxf2 28.Bxf2
Rxf2 29.Kd1 Bxb2 30.Rg4 Be5 31.Rh3 Kf7 32.Ke1 Rf3 33.Rxf3+
exf3 34.Nd4 h5 35.Rxg6 Kxg6 36.Nxc6 Bg3+ 37.Kf1 Kg5 0-1

[Event "URS-ch26"]
[Site "Tbilisi"]
[Date "1959.01.09"]
[EventDate "?"]
[Round "19"]
[Result "1/2-1/2"]
[White "Evgeni Vasiukov"]
[Black "Nikolai V Krogius"]
[ECO "C68"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "40"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.Nc3 f6 6.d4 exd4
7.Qxd4 Qxd4 8.Nxd4 Bd7 9.Be3 O-O-O 10.O-O-O Bb4 11.Nde2 Re8
12.a3 Bxc3 13.Nxc3 f5 14.exf5 Bxf5 15.Bd4 Nf6 16.Rhe1 Rxe1
17.Rxe1 Re8 18.Rxe8+ Nxe8 19.Nd1 g6 20.Ne3 Be6 1/2-1/2

[Event "URS-ch26"]
[Site "Tbilisi"]
[Date "1959.01.09"]
[EventDate "?"]
[Round "5"]
[Result "1/2-1/2"]
[White "Anatoly S Lutikov"]
[Black "Nikolai V Krogius"]
[ECO "B89"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "59"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 e6 7.Be3
Be7 8.Qe2 a6 9.a3 O-O 10.Rd1 Qc7 11.O-O b5 12.Bb3 Bb7 13.f4
Na5 14.Bf2 Nxb3 15.cxb3 Rfd8 16.Rd3 g6 17.b4 e5 18.Nb3 Nh5
19.Be3 exf4 20.Bd4 Rac8 21.Na5 Ba8 22.Qf3 Bf8 23.Nd5 Bxd5
24.exd5 Re8 25.Nc6 Bg7 26.Bc3 Qd7 27.Kh1 Qc7 28.Kg1 Qd7 29.Kh1
Qc7 30.Kg1 1/2-1/2

[Event "26th Soviet Championship"]
[Site "Tbilisi"]
[Date "1959.??.??"]
[EventDate "?"]
[Round "2"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Bukhuti Gurgenidze"]
[ECO "E80"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "68"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 c6 6.Be3 a6 7.Qd2 b5
8.Bd3 Nbd7 9.Nge2 O-O 10.O-O bxc4 11.Bxc4 a5 12.Bh6 Rb8
13.Bxg7 Kxg7 14.Rad1 Qb6 15.b3 Ne5 16.Bd3 Nxd3 17.Qxd3 Ba6
18.Qd2 Nd7 19.Rf2 Qb4 20.f4 Nb6 21.f5 a4 22.Nf4 axb3 23.axb3
c5 24.dxc5 Qxc5 25.Ncd5 Nxd5 26.Nxd5 Rxb3 27.Nxe7 f6 28.fxg6
hxg6 29.Nd5 Rd3 30.Qe1 Rxd1 31.Qxd1 Rc8 32.h3 Qc1 33.Qxc1
Rxc1+ 34.Kh2 Rf1 1/2-1/2

[Event "26th Soviet Championship"]
[Site "Tbilisi"]
[Date "1959.??.??"]
[EventDate "?"]
[Round "4"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Semyon Abramovich Furman"]
[ECO "B48"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "39"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Qc7 5.Nc3 e6 6.Be3 Nf6
7.Bd3 a6 8.O-O Nxd4 9.Bxd4 Bc5 10.Bxc5 Qxc5 11.Qe2 d6 12.Kh1
e5 13.f4 Bg4 14.Qd2 exf4 15.Qxf4 Be6 16.Rae1 O-O-O 17.e5 dxe5
18.Rxe5 Qc7 19.Ree1 Qxf4 20.Rxf4 1/2-1/2

[Event "26th Soviet Championship"]
[Site "Tbilisi"]
[Date "1959.??.??"]
[EventDate "?"]
[Round "8"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Aleksander S Nikitin"]
[ECO "D38"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "91"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 Bb4 5.cxd5 exd5 6.Bg5 h6 7.Bh4
c5 8.e3 Nc6 9.Be2 Be6 10.O-O c4 11.Ne5 O-O 12.f4 Be7 13.Bf3
Ne4 14.Bxe7 Nxc3 15.Bxd8 Nxd1 16.Rfxd1 Rfxd8 17.Nxc4 dxc4
18.d5 Bd7 19.dxc6 Bxc6 20.Bxc6 bxc6 21.Rac1 Rd5 22.e4 Rb5
23.Rc2 Rab8 24.Rdd2 g5 25.Rxc4 Rxb2 26.Rxb2 Rxb2 27.Rxc6 Rxa2
28.Rxh6 gxf4 29.Rf6 a5 30.Rxf4 a4 31.e5 Kg7 32.h3 a3 33.Ra4
Kg6 34.Ra7 Ra1+ 35.Kh2 a2 36.Kg3 Kg5 37.h4+ Kh5 38.Ra5 Kg6
39.Kg4 Re1 40.Rxa2 Rxe5 41.Ra6+ Kg7 42.h5 Rb5 43.h6+ Kh7
44.Rf6 Re5 45.Kh4 Re6 46.Kg5 1/2-1/2

[Event "26th Soviet Championship"]
[Site "Tbilisi"]
[Date "1959.??.??"]
[EventDate "?"]
[Round "13"]
[Result "1-0"]
[White "Yuri Averbakh"]
[Black "Nikolai V Krogius"]
[ECO "D83"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "193"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bf4 Bg7 5.e3 O-O 6.Qb3 dxc4 7.Bxc4
c6 8.Nf3 b5 9.Be2 a5 10.O-O Nbd7 11.Ne5 Nxe5 12.Bxe5 Be6
13.Qc2 Rc8 14.Rfd1 Qb6 15.b3 Rfe8 16.Rac1 Bf5 17.Bd3 Bg4
18.Ne2 Bf8 19.h3 Bd7 20.Qd2 Bh6 21.Ng3 Nd5 22.Ne4 Red8 23.Nc5
Be8 24.Qe2 f6 25.Bg3 Bf7 26.Be4 Qa7 27.Bf3 Re8 28.Bg4 f5
29.Bf3 Red8 30.Be5 Nb4 31.a3 Nd5 32.Qb2 Qb6 33.Ra1 Nc7 34.Rdc1
Ne6 35.Nxe6 Bxe6 36.Rc5 Bd5 37.Bxd5+ Rxd5 38.Rac1 Rxc5 39.Rxc5
Bf8 40.Qc1 e6 41.Rc2 Qb7 42.a4 bxa4 43.bxa4 Qd7 44.Qb1 Bb4
45.Qf1 Qb7 46.Qd3 Be7 47.Rc1 Bb4 48.e4 fxe4 49.Qxe4 Qd7 50.Qf3
Bd6 51.Qf6 Bxe5 52.Qxe5 Qd5 53.Rc5 Qxe5 54.dxe5 g5 55.g4 Rd8
56.Rxa5 Rd4 57.Ra8+ Kg7 58.Ra7+ Kg8 59.a5 Ra4 60.Kf1 Ra2
61.Ke1 c5 62.a6 c4 63.Kd1 c3 64.Kc1 h6 65.Kb1 Rb2+ 66.Kc1 Ra2
67.Ra8+ Kg7 68.a7 Kh7 69.Kb1 c2+ 70.Kxa2 c1=Q 71.Rh8+ Kxh8
72.a8=Q+ Kg7 73.Qb7+ Kg8 74.Qb8+ Kf7 75.Qa7+ Kg6 76.Qd4 Qc2+
77.Ka3 h5 78.Kb4 Kh6 79.Qd6 Qb2+ 80.Ka4 Qa2+ 81.Kb5 hxg4
82.hxg4 Kg6 83.Kc6 Qa4+ 84.Kc7 Qxg4 85.Kd7 Kh5 86.Qxe6 Qa4+
87.Kd8 Qd4+ 88.Qd6 Qxf2 89.e6 Qf6+ 90.Kc7 Qa1 91.e7 Qa7+
92.Kc8 Qa8+ 93.Kd7 Qb7+ 94.Ke8 Qf3 95.Qe6 Kh4 96.Qf7 Qa8+
97.Kd7 1-0

[Event "26th Soviet Championship"]
[Site "Tbilisi"]
[Date "1959.??.??"]
[EventDate "?"]
[Round "15"]
[Result "1/2-1/2"]
[White "Eduard Gufeld"]
[Black "Nikolai V Krogius"]
[ECO "D14"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "36"]

1.d4 d5 2.c4 c6 3.cxd5 cxd5 4.Nc3 Nf6 5.Nf3 Nc6 6.Bf4 Bf5 7.e3
e6 8.Bd3 Bxd3 9.Qxd3 Bd6 10.Bxd6 Qxd6 11.O-O O-O 12.Rfc1 Rac8
13.Ne2 Ne4 14.Nd2 Nxd2 15.Qxd2 h6 16.g3 Qb4 17.Qc3 Qxc3
18.Rxc3 Ne7 1/2-1/2

[Event "04, URS-ch27 Leningrad"]
[Site "04, URS-ch27 Leningrad"]
[Date "1960.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Vladimir Bagirov"]
[Black "Nikolai V Krogius"]
[ECO "E46"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "80"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Ne2 d5 6.a3 Be7 7.cxd5
Nxd5 8.g3 Nxc3 9.Nxc3 c5 10.dxc5 Qxd1+ 11.Nxd1 Bxc5 12.Bg2 Be7
13.Bd2 Nd7 14.b4 Rb8 15.Nb2 b6 16.O-O Bf6 17.Rab1 Ba6 18.Rfc1
Rbc8 19.Nd1 Bd3 20.Rxc8 Rxc8 21.Rc1 Rc2 22.Rxc2 Bxc2 23.Nc3
Ne5 24.Nb5 Nc4 25.Bc1 a6 26.Nd4 Bd3 27.Nb3 Kf8 28.Bf1 Bxf1
29.Kxf1 Ke7 30.Ke2 Kd6 31.e4 Kc6 32.a4 b5 33.Nd2 Nxd2 34.axb5
Kxb5 35.Bxd2 Kc4 36.Kd1 Bc3 37.Bc1 Kb3 38.Bf4 Bxb4 39.Kc1 Bc3
40.Bd6 a5 0-1

[Event "Moscow"]
[Site "Moscow"]
[Date "1960.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Efim Geller"]
[ECO "B67"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "53"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2
a6 8.O-O-O Bd7 9.f4 b5 10.Bxf6 gxf6 11.Kb1 Qb6 12.Nxc6 Bxc6
13.Bd3 h5 14.Rhf1 O-O-O 15.f5 Bh6 16.Qe1 b4 17.Ne2 e5 18.Nc1
a5 19.Bc4 Rd7 20.Bd5 Bb5 21.Rf3 Rc7 22.Nb3 Kb8 23.Nxa5 Rhc8
24.Qxb4 Rxc2 25.a3 Ka7 26.Rb3 Ka6 27.Bb7+ 1-0

[Event "Moscow"]
[Site "Moscow"]
[Date "1960.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Viktor Korchnoi"]
[Black "Nikolai V Krogius"]
[ECO "E50"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "67"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 c5 6. Be2 b6
7. O-O Bxc3 8. bxc3 Bb7 9. Nd2 Nc6 10. Nb3 d6 11. f3 e5 12. e4
Nd7 13. Be3 Qc7 14. Rc1 Rac8 15. Qd2 Rcd8 16. Bd3 Rfe8 17. d5
Ne7 18. g3 Rf8 19. Qc2 Rde8 20. Rce1 Bc8 21. Bc1 Kh8 22. f4
exf4 23. gxf4 Ng6 24. Qg2 b5 25. Nd2 bxc4 26. Nxc4 Ba6 27. Re3
Bxc4 28. Bxc4 f5 29. Rh3 Rf6 30. exf5 Ne7 31. Qe2 Rxf5 32. Bd3
Nf6 33. Re3 Rxd5 34. Bb5 1-0

[Event "URS-ch27 Leningrad"]
[Site "URS-ch27 Leningrad"]
[Date "1960.??.??"]
[EventDate "?"]
[Round "17"]
[Result "1-0"]
[White "Viktor Korchnoi"]
[Black "Nikolai V Krogius"]
[ECO "E50"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "75"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 c5 6. Be2 d5
7. O-O Nc6 8. cxd5 exd5 9. dxc5 Bxc5 10. b3 a6 11. Na4 Ba7
12. Bb2 Ne4 13. Rc1 Bg4 14. Nc3 Be6 15. Bd3 Nf6 16. Ne2 Rc8
17. Nf4 Re8 18. Ng5 d4 19. Qc2 Ne5 20. Bxh7+ Kh8 21. Qb1 Rxc1
22. Rxc1 Nfg4 23. Nfxe6 fxe6 24. Bg8 g6 25. Nf7+ Nxf7 26. Bxf7
Qh4 27. Qxg6 Qxf2+ 28. Kh1 Qxb2 29. Qh5+ Kg7 30. Qxg4+ Kxf7
31. Rc7+ Re7 32. Qh5+ Kf6 33. Qh6+ Kf5 34. g4+ Kxg4 35. Qf4+
Kh5 36. Rxe7 Qb1+ 37. Kg2 Qg6+ 38. Kh3 1-0

[Event "Kiev (Ukraine)"]
[Site "Kiev (Ukraine)"]
[Date "1960.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Nikolai V Krogius"]
[Black "Leonid Stein"]
[ECO "E92"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "86"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.Be2 d6 6.Nf3 e5 7.d5 h6
8.O-O Nh7 9.Ne1 Nd7 10.Nd3 f5 11.f3 f4 12.b4 Rf7 13.c5 Ndf6
14.c6 bxc6 15.dxc6 Be6 16.b5 Bf8 17.Nb4 d5 18.Nbxd5 Bc5+
19.Kh1 Nh5 20.Qe1 Ng3+ 21.hxg3 Qg5 22.g4 h5 23.g3 hxg4 24.Kg2
Raf8 25.Bd2 Qh6 26.Rh1 Qg7 27.gxf4 exf4 28.Rd1 g5 29.e5 Qxe5
30.fxg4 Qxe2+ 31.Qxe2 f3 32.Qxf3 Rxf3 33.Rhf1 Bxg4 34.Ne4 Bh3+
35.Kh2 Rxf1 36.Rxf1 Bxf1 37.Nxc5 Rf2+ 38.Kg1 Rxd2 39.Nxc7 Bh3
40.a4 Rg2+ 41.Kh1 Nf6 42.a5 Ng4 43.Ne4 Re2 0-1

[Event "URS-ch27 Leningrad"]
[Site "07"]
[Date "1960.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Alexey Suetin"]
[Black "Nikolai V Krogius"]
[ECO "C96"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "80"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3
O-O 8.c3 d6 9.h3 Na5 10.Bc2 c5 11.d4 Bb7 12.Nbd2 cxd4 13.cxd4
Rc8 14.d5 Qc7 15.Bd3 Nd7 16.Nf1 Nc4 17.Ng3 Nc5 18.Bc2 g6 19.b3
Nb6 20.Bh6 Rfe8 21.Rc1 Bf8 22.Bd2 Qe7 23.Ba5 Na8 24.Qd2 Bg7
25.Qe3 Qf8 26.Nd2 Bh6 27.Qe2 Qe7 28.Ngf1 Rf8 29.b4 Na4 30.Bxa4
bxa4 31.b5 Nc7 32.Bxc7 Rxc7 33.bxa6 Bc8 34.Rb1 Bxd2 35.Nxd2
Rc2 36.Qd3 Rxa2 37.Rb6 f5 38.exf5 Qa7 39.Rxd6 Bxf5 40.Qc3 Rc2
1/2-1/2

[Event "Moscow"]
[Site "Moscow"]
[Date "1960.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Mark Taimanov"]
[Black "Nikolai V Krogius"]
[ECO "E56"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "74"]

1.c4 Nf6 2.Nc3 e6 3.d4 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O
Nc6 8.a3 Ba5 9.h3 cxd4 10.exd4 dxc4 11.Bxc4 Bb6 12.Be3 Ne7
13.Qd3 Bd7 14.Bg5 Bc6 15.Rad1 Ng6 16.Ba2 h6 17.Bc1 Nd5 18.Bb1
Bc7 19.Ne5 Bxe5 20.dxe5 Qh4 21.Nxd5 Bxd5 22.Qe3 Qg5 23.Qxg5
hxg5 24.Rfe1 Nf4 25.f3 Rfc8 26.Kh2 Bb3 27.Rd7 Bc2 28.Bxf4 gxf4
29.Rxb7 a5 30.Bxc2 Rxc2 31.Re4 g5 32.Rd4 Re2 33.Rdd7 Rf8 34.b4
axb4 35.axb4 Rxe5 36.b5 Kg7 37.b6 Rb5 1/2-1/2

[Event "URS-ch27"]
[Site "Leningrad"]
[Date "1960.??.??"]
[EventDate "?"]
[Round "11"]
[Result "1/2-1/2"]
[White "Iivo Nei"]
[Black "Nikolai V Krogius"]
[ECO "D40"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "28"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 d5 4.d4 c5 5.dxc5 Bxc5 6.e3 O-O 7.a3
dxc4 8.Bxc4 Qxd1+ 9.Kxd1 a6 10.b4 Be7 11.Ke2 b5 12.Bd3 Bb7
13.Bb2 Nbd7 14.Rhg1 Rfd8 1/2-1/2

[Event "URS-ch27"]
[Site "Leningrad"]
[Date "1960.??.??"]
[EventDate "?"]
[Round "8"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Anatoly S Lutikov"]
[ECO "C74"]
[WhiteElo "2485"]
[BlackElo "2545"]
[PlyCount "88"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3 f5 6.exf5 Bxf5 7.O-O
Bd3 8.Qb3 Rb8 9.Re1 e4 10.Nd4 Ne7 11.c4 Kd7 12.Ne6 Qe8 13.Nf4
b5 14.cxb5 axb5 15.Qe6+ Kd8 16.Nxd3 exd3 17.Bd1 Qg6 18.Qh3 h5
19.Nc3 Qf5 20.Qe3 g6 21.Ne4 Ne5 22.Ng3 Qf7 23.Bb3 Qh7 24.f4
Bh6 25.Qe4 Nd7 26.Qxd3 Bxf4 27.Ne2 Be5 28.Qh3 Nf5 29.d4 Bf6
30.Bd2 Re8 31.Kh1 Nb6 32.Qd3 Nc4 33.Bxc4 bxc4 34.Qxc4 g5
35.Nc3 Rf8 36.Nd5 Qf7 37.Re7 Qxe7 38.Nxe7 Bxe7 39.Rc1 Ke8
40.Qxc7 Kf7 41.g4 hxg4 42.Rf1 Kg6 43.Rxf5 Kxf5 44.Qxe7 Rbe8
1-0

[Event "Leningrad ch-URS"]
[Site "?"]
[Date "1960.??.??"]
[EventDate "?"]
[Round "2"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "David Bronstein"]
[ECO "C47"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "41"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6
Bxc3 7. bxc3 dxc6 8. Qxd8 Kxd8 9. f3 Be6 10. Bg5 Kc8 11. Bd3
Nd7 12. O-O f6 13. Be3 Ne5 14. a3 Rd8 15. Rad1 Nc4 16. Bxc4
Bxc4 17. Rxd8 Kxd8 18. Rd1 Ke8 19. Kf2 Rd8 20. Rxd8 Kxd8
21. h4 1/2-1/2

[Event "Varna"]
[Site "Varna"]
[Date "1960.??.??"]
[EventDate "?"]
[Round "12"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Nikolay Minev"]
[ECO "C75"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "29"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3 Bd7 6.d4 Nf6 7.O-O
Be7 8.Re1 O-O 9.Nbd2 Re8 10.h3 Bf8 11.Bb3 h6 12.a3 g6 13.Bc2
Bg7 14.Nf1 Nh5 15.Ne3 1/2-1/2

[Event "URS-ch27"]
[Site "Leningrad"]
[Date "1960.??.??"]
[EventDate "?"]
[Round "12"]
[Result "0-1"]
[White "Nikolai V Krogius"]
[Black "Vasily Smyslov"]
[ECO "B51"]
[WhiteElo "2485"]
[BlackElo "2494"]
[PlyCount "82"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7 4.d4 cxd4 5.Qxd4 Nf6 6.O-O a6
7.Bxd7+ Bxd7 8.Bg5 h6 9.Bxf6 gxf6 10.Nc3 e6 11.Rad1 Be7 12.Nd2
b5 13.a4 Qc7 14.axb5 axb5 15.Nb3 O-O 16.Rd2 Rfb8 17.Qe3 Kh7
18.Qf3 b4 19.Ne2 Rg8 20.Qd3 Bc6 21.Ned4 Bb7 22.f4 Ba6 23.Qf3
Bxf1 24.Qxf1 Qb7 25.Qd3 Qa6 26.Qf3 Rac8 27.h3 Bd8 28.Kh1 Bb6
29.Ne2 Rcd8 30.Nec1 Rg3 31.Qd1 Be3 32.Rd3 Bxf4 33.Ne2 Rxd3
34.cxd3 Be3 35.Ng3 Qb5 36.Nh5 Qg5 37.Qf3 f5 38.exf5 Qxf5
39.Nf6+ Kg6 40.Qxe3 Qxf6 41.Nd4 Kh7 0-1

[Event "URS-ch27"]
[Site "Leningrad"]
[Date "1960.??.??"]
[EventDate "?"]
[Round "1"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Bukhuti Gurgenidze"]
[ECO "A49"]
[WhiteElo "2485"]
[BlackElo "2108"]
[PlyCount "48"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.b3 a5 7.a4 e5
8.dxe5 Ng4 9.Bb2 Nc6 10.Na3 Ngxe5 11.Nxe5 Nxe5 12.Qc1 c6
13.Nc4 Nxc4 14.Bxg7 Kxg7 15.bxc4 Qb6 16.Qf4 Qc5 17.Rfd1 Rd8
18.Rab1 Rb8 19.Qd4+ Qxd4 20.Rxd4 Be6 21.Rbd1 c5 22.Rxd6 Rxd6
23.Rxd6 Bxc4 24.Bd5 Bxe2 1/2-1/2

[Event "URS-ch27"]
[Site "Leningrad"]
[Date "1960.??.??"]
[EventDate "?"]
[Round "2"]
[Result "1/2-1/2"]
[White "Yuri Averbakh"]
[Black "Nikolai V Krogius"]
[ECO "D42"]
[WhiteElo "2445"]
[BlackElo "2485"]
[PlyCount "148"]

1.c4 e6 2.d4 Nf6 3.Nf3 d5 4.Nc3 c5 5.cxd5 Nxd5 6.e3 Nc6 7.Bd3
Be7 8.O-O O-O 9.Nxd5 Qxd5 10.e4 Qd8 11.dxc5 Nb4 12.Be2 Bxc5
13.a3 Nc6 14.b4 Bb6 15.Bb2 Qe7 16.b5 Rd8 17.Qa4 Nb8 18.e5 Nd7
19.Bc1 Nxe5 20.Nxe5 Bd4 21.Nxf7 Qxf7 22.Bg5 Rd6 23.Rad1 e5
24.Be3 Qf6 25.Bf3 a6 26.Bxd4 exd4 27.Rfe1 Bd7 28.Qc4+ Be6
29.Rxe6 Qxe6 30.Qxe6+ Rxe6 31.Bd5 Kf7 32.Rxd4 Ke7 33.Bxe6 Kxe6
34.bxa6 Rxa6 35.Rd3 Rb6 36.h4 Kf7 37.g3 Rb2 38.Kg2 b5 39.Rd7+
Kg8 40.h5 h6 41.Ra7 b4 42.axb4 Rxb4 43.Re7 Ra4 44.Kf3 Rb4
45.g4 Ra4 46.Kg3 Rb4 47.f3 Ra4 48.Re4 Ra3 49.Kf4 Rb3 50.Rd4
Ra3 51.Ke4 Rb3 52.f4 Rb5 53.Rd5 Rb6 54.Ke5 Ra6 55.Rd6 Ra5+
56.Ke6 Ra4 57.Rd8+ Kh7 58.g5 hxg5 59.fxg5 Ra6+ 60.Kf7 Ra7+
61.Ke6 Ra6+ 62.Ke5 Ra5+ 63.Rd5 Ra8 64.Kf5 Kg8 65.g6 Rb8 66.Rd7
Ra8 67.Ke6 Rb8 68.Ke7 Ra8 69.Rd8+ Rxd8 70.Kxd8 Kh8 71.Ke8 Kg8
72.Ke7 Kh8 73.h6 Kg8 74.h7+ Kh8 1/2-1/2

[Event "URS-ch27"]
[Site "Leningrad"]
[Date "1960.??.??"]
[EventDate "?"]
[Round "3"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Boris Spassky"]
[ECO "C65"]
[WhiteElo "2485"]
[BlackElo "2548"]
[PlyCount "162"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Bc5 5.Nxe5 Nxe4 6.Qe2 Nxe5
7.Qxe4 Qe7 8.d4 Ng6 9.Qxe7+ Bxe7 10.Nc3 O-O 11.Bd3 c6 12.Ne2
d5 13.Nf4 Bd6 14.Nxg6 hxg6 15.Bd2 Bf5 16.Bxf5 gxf5 17.Rfe1 f6
18.a3 b6 19.Rac1 Kf7 20.h3 Rfe8 21.Rxe8 Rxe8 22.Kf1 Re4 23.c3
g5 24.f3 Re8 25.Kf2 Rh8 26.a4 c5 27.b4 Rc8 28.dxc5 bxc5 29.b5
f4 30.Ke2 c4 31.Be1 Bc5 32.Bf2 Bxf2 33.Kxf2 Ke6 34.Ke2 Kd6
35.Kd2 Re8 36.Rh1 Rh8 37.Re1 Rb8 38.Kc2 Kd7 39.Rd1 Ke6 40.Re1+
Kd6 41.Kc1 a6 42.bxa6 Rb6 43.h4 gxh4 44.Rh1 Rxa6 45.Rxh4 Ke5
46.Rh5+ f5 47.Rh8 Rxa4 48.Re8+ Kf6 49.Rd8 Ra1+ 50.Kc2 Ra2+
51.Kc1 Ra5 52.Kb2 Ke7 53.Rh8 Rb5+ 54.Kc2 Rb6 55.Rh7+ Kd6
56.Rh6+ Kc5 57.Rh5 Rf6 58.Kc1 Kd6 59.Rg5 Rf8 60.Rg6+ Ke5
61.Kc2 Ra8 62.Kb2 d4 63.cxd4+ Kxd4 64.Rd6+ Kc5 65.Rg6 Re8
66.Kc3 Re3+ 67.Kc2 Kd4 68.Rd6+ Ke5 69.Rg6 Ra3 70.Kb2 Rb3+
71.Kc2 Kd4 72.Rd6+ Ke3 73.Rg6 Kf2 74.Rg5 Rb5 75.Kc3 Rc5 76.Rg8
Kg1 77.Rg7 Kh2 78.Rg5 Ra5 79.Kxc4 Ra2 80.Rxf5 Kxg2 81.Kb3 Rf2
1/2-1/2

[Event "URS-ch27"]
[Site "Leningrad"]
[Date "1960.??.??"]
[EventDate "?"]
[Round "5"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Lev Polugaevsky"]
[ECO "E07"]
[WhiteElo "2485"]
[BlackElo "2640"]
[PlyCount "71"]

1.d4 Nf6 2.Nf3 e6 3.g3 d5 4.Bg2 Nbd7 5.O-O Be7 6.c4 O-O 7.Nbd2
c6 8.b3 b6 9.Bb2 Bb7 10.Rc1 Rc8 11.e3 c5 12.Qe2 cxd4 13.Nxd4
Nc5 14.Rfd1 Qd7 15.N2f3 Rfd8 16.Ne5 Qe8 17.Nb5 a6 18.Nd4 dxc4
19.Bxb7 Nxb7 20.Rxc4 b5 21.Rxc8 Rxc8 22.Rc1 Rxc1+ 23.Bxc1 Bd6
24.Ndf3 Qc8 25.Bb2 Nd5 26.Ng5 Nd8 27.Qd3 f5 28.e4 Bxe5 29.Bxe5
Qc1+ 30.Kg2 fxe4 31.Nxe4 Nf7 32.Qd4 Qc6 33.Kg1 Qc1+ 34.Kg2 Qc6
35.Kg1 Qc1+ 36.Kg2 1/2-1/2

[Event "URS-ch27"]
[Site "Leningrad"]
[Date "1960.??.??"]
[EventDate "?"]
[Round "10"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Y Sakharov"]
[ECO "E66"]
[WhiteElo "2485"]
[BlackElo "?"]
[PlyCount "71"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O c5 6.c4 d6 7.Nc3
Nc6 8.dxc5 dxc5 9.Bf4 Nh5 10.Be3 Nd4 11.Qd2 e5 12.Nd5 Re8
13.Rfe1 Bd7 14.Bh6 Bh8 15.Nxd4 cxd4 16.e3 dxe3 17.Bxe3 Bc6
18.Rad1 Bg7 19.Bg5 f6 20.Be3 Qd7 21.Nb4 Qxd2 22.Rxd2 Bxg2
23.Kxg2 Nf4+ 24.Bxf4 exf4 25.Rxe8+ Rxe8 26.gxf4 Re4 27.b3 f5
28.Rd8+ Bf8 29.Kf3 Kf7 30.Nd5 Bc5 31.Rd7+ Ke6 32.Rxb7 Rd4
33.Nc7+ Kf6 34.b4 Bf8 35.Rb8 Kf7 36.Rxf8+ 1-0

[Event "URS-ch27"]
[Site "Leningrad"]
[Date "1960.??.??"]
[EventDate "?"]
[Round "13"]
[Result "0-1"]
[White "Vladimir Simagin"]
[Black "Nikolai V Krogius"]
[ECO "B31"]
[WhiteElo "?"]
[BlackElo "2485"]
[PlyCount "134"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.Re1 e5 6.c3 Nge7 7.d3
O-O 8.Nbd2 a6 9.Ba4 b5 10.Bb3 Bb7 11.Nf1 Na5 12.Bc2 Qc7 13.Ne3
d5 14.Ng4 dxe4 15.dxe4 Rad8 16.Qe2 Bc8 17.h3 f6 18.a4 Be6
19.axb5 Bc4 20.Qe3 axb5 21.b4 cxb4 22.cxb4 Nac6 23.Qa3 Nd4
24.Nxd4 exd4 25.Bd1 h5 26.Nh2 Nc6 27.Nf3 Ne5 28.Nxe5 fxe5
29.Qg3 Kh7 30.Bg5 Ra8 31.Rxa8 Rxa8 32.f4 exf4 33.Bxf4 Qe7
34.Bf3 h4 35.Qg5 Qxg5 36.Bxg5 Be5 37.Bxh4 d3 38.Bg5 Ra2 39.Rd1
Bc3 40.e5 Bxe5 41.Be4 Bg3 42.Bf3 Bd6 43.Be4 Bg3 44.Bf3 Rb2
45.h4 Rxb4 46.Be4 Kg7 47.Rf1 Be5 48.Rd1 Rb3 49.g4 Rb2 50.h5
Bd4+ 51.Kh1 Re2 52.Bf3 Ra2 53.Bd2 Bb3 54.Rb1 Ba4 55.Bg5 Rf2
56.h6+ Kh7 57.Rb4 Bc3 58.Rf4 d2 59.Rf7+ Kg8 60.Bxd2 Bxd2
61.Rg7+ Kh8 62.Be4 Rf4 63.Bxg6 Rf6 64.Bh5 Rxh6 65.Rb7 b4
66.Kg1 Rb6 67.Ra7 Bc2 0-1

[Event "URS-ch27"]
[Site "Leningrad"]
[Date "1960.??.??"]
[EventDate "?"]
[Round "14"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Leonid Shamkovich"]
[ECO "D33"]
[WhiteElo "2485"]
[BlackElo "2495"]
[PlyCount "38"]

1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 c4 7.Bg2
Bb4 8.O-O Nge7 9.e4 O-O 10.exd5 Nxd5 11.Bg5 Be7 12.Nxd5 Bxg5
13.Nxg5 Qxg5 14.Qc1 Qxc1 15.Rfxc1 Be6 16.Nc7 Nxd4 17.Nxe6 Nxe6
18.Rxc4 Rad8 19.Ra4 a6 1/2-1/2

[Event "URS-ch27"]
[Site "Leningrad"]
[Date "1960.??.??"]
[EventDate "?"]
[Round "15"]
[Result "1-0"]
[White "Eduard Gufeld"]
[Black "Nikolai V Krogius"]
[ECO "C96"]
[WhiteElo "2565"]
[BlackElo "2485"]
[PlyCount "167"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3
O-O 8.c3 d6 9.h3 Na5 10.Bc2 c5 11.d4 Bb7 12.d5 Bc8 13.Nbd2 Ne8
14.b4 Nb7 15.a4 Bd7 16.Nf1 g6 17.Be3 Qc7 18.axb5 Bxb5 19.Ba4
Ng7 20.Bxb5 axb5 21.Qe2 c4 22.Ra2 f5 23.Rea1 Rxa2 24.Qxa2 f4
25.Bc1 Rb8 26.g3 g5 27.Qa7 Ne8 28.h4 h6 29.hxg5 hxg5 30.N1h2
Nd8 31.Ng4 Nf7 32.Qa2 Nf6 33.Nfh2 Qc8 34.Qe2 Nxg4 35.Qxg4 Qxg4
36.Nxg4 Rb7 37.Kg2 Kg7 38.Bd2 Bd8 39.Be1 Bb6 40.Ra6 Kf8 41.f3
Ke7 42.Bf2 Bxf2 43.Kxf2 Kd7 44.Kg2 Kc7 45.Nf6 Rb6 46.Ra7+ Rb7
47.Ra6 Rb6 48.Ne8+ Kb7 49.Ra5 Ra6 50.Rxa6 Kxa6 51.Ng7 Kb7
52.Nf5 Kc7 53.Kh3 fxg3 54.Nxg3 Nh8 55.Kg4 Ng6 56.Nh5 Nf8
57.Ng7 Ng6 58.Kxg5 Ne7 59.Kf6 Kd7 60.Ne6 Nc8 61.f4 exf4
62.Nxf4 Nb6 63.Ne2 Na4 64.Kf7 Nb2 65.Nd4 Nd1 66.Nxb5 Nf2
67.Kf6 Nxe4+ 68.Kf5 Nd2 69.Kf4 Ke7 70.Ke3 Nf1+ 71.Kd4 Ng3
72.Kxc4 Nf5 73.Kd3 Kd7 74.Nd4 Ng3 75.c4 Nh5 76.Ne6 Nf6 77.Kd4
Ng4 78.c5 dxc5+ 79.bxc5 Nf6 80.Ng5 Kc7 81.Ne4 Nd7 82.Nc3 Nf6
83.Nb5+ Kb7 84.Ke5 1-0

[Event "URS-ch27"]
[Site "Leningrad"]
[Date "1960.??.??"]
[EventDate "?"]
[Round "16"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "V Liberzon"]
[ECO "A49"]
[WhiteElo "2485"]
[BlackElo "2555"]
[PlyCount "82"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.b3 a5 7.a4 c6
8.Nbd2 d5 9.Ba3 Ne4 10.Nxe4 dxe4 11.Ne5 f6 12.Nc4 f5 13.e3 Nd7
14.f3 exf3 15.Bxf3 Nf6 16.Ne5 Be6 17.c4 Qc7 18.Qc2 Rad8
19.Rad1 Ne4 20.Nd3 Ng5 21.Bg2 Bf7 22.Kh1 Rfe8 23.Bb2 b6 24.Ne5
Bxe5 25.dxe5 Be6 26.h4 Ne4 27.Bxe4 Rxd1 28.Rxd1 fxe4 29.Qxe4
Rd8 30.Rxd8+ Qxd8 31.Qxc6 Qd1+ 32.Kh2 Qc2+ 33.Qg2 Qxb3 34.Bd4
Qxc4 35.Bxb6 Qxa4 36.Bc5 Qd7 37.Qa8+ Kf7 38.Qxa5 Qd1 39.e4
Qe2+ 40.Kg1 Bh3 41.e6+ Bxe6 1/2-1/2

[Event "URS-ch27"]
[Site "Leningrad"]
[Date "1960.??.??"]
[EventDate "?"]
[Round "19"]
[Result "1-0"]
[White "Petrosian"]
[Black "Nikolai V Krogius"]
[ECO "D03"]
[WhiteElo "2645"]
[BlackElo "2485"]
[PlyCount "83"]

1.d4 Nf6 2.Nf3 g6 3.Bg5 Bg7 4.Nbd2 d5 5.e3 O-O 6.Bd3 Nbd7 7.c3
Re8 8.Bf4 Nh5 9.Bg5 Nhf6 10.Qb3 c6 11.O-O e5 12.e4 exd4
13.cxd4 dxe4 14.Nxe4 Qb6 15.Nd6 Re6 16.Nxc8 Rxc8 17.Bc4 Re7
18.Qa3 Ree8 19.Bd2 Bf8 20.Qa4 Qc7 21.Qb3 Nb6 22.Ba5 Ne4
23.Rac1 Nd6 24.Bd3 Bg7 25.h4 Rcd8 26.h5 gxh5 27.Rc5 Ne4
28.Rxh5 Bxd4 29.Rh4 Nc5 30.Bxh7+ Kg7 31.Qb4 Bf6 32.Qg4+ Kf8
33.Bb4 Rd5 34.Rh5 Nd7 35.Qg8+ Ke7 36.Re1+ Ne5 37.Qg3 Kd8
38.Nxe5 Rdxe5 39.Rhxe5 Bxe5 40.Qh4+ Kc8 41.Bf5+ Kb8 42.Bxc5
1-0

[Event "Moscow (Russia)"]
[Site "Moscow (Russia)"]
[Date "1961.??.??"]
[EventDate "?"]
[Round "3"]
[Result "1/2-1/2"]
[White "Salomon Flohr"]
[Black "Nikolai V Krogius"]
[ECO "A15"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "31"]

1.Nf3 Nf6 2.c4 e6 3.b3 d5 4.Bb2 Be7 5.g3 O-O 6.Bg2 c5 7.cxd5
Nxd5 8.O-O Nc6 9.Nc3 Nxc3 10.dxc3 Qc7 11.Qc2 b6 12.Ne5 Bb7
13.Nxc6 Bxc6 14.Bxc6 Qxc6 15.c4 Rfd8 16.Rfd1 1/2-1/2

[Event "Moscow"]
[Site "Moscow"]
[Date "1961.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Vlastimil Jansa"]
[ECO "E60"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "71"]

1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 c5 5.Bg2 cxd4 6.Nxd4 O-O 7.O-O
Nc6 8.Nc3 Qa5 9.Nb3 Qh5 10.c5 b6 11.cxb6 axb6 12.e4 Qxd1
13.Rxd1 Rb8 14.f4 Na5 15.e5 Ng4 16.Nd5 Re8 17.h3 Nh6 18.Nxa5
bxa5 19.b3 d6 20.Ba3 Bb7 21.Rac1 dxe5 22.Nxe7+ Kh8 23.Nc6 Bxc6
24.Bxc6 Rec8 25.Bd7 Rxc1 26.Bxc1 Nf5 27.Bxf5 gxf5 28.Rd5 e4
29.Bd2 a4 30.b4 Bf6 31.b5 Rc8 32.b6 Rc2 33.b7 Rb2 34.Rd8+ Bxd8
35.Bc3+ Kg8 36.Bxb2 1-0

[Event "09"]
[Site "x"]
[Date "1961.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Nezhmetdinov"]
[Black "Nikolai V Krogius"]
[ECO "C93"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "89"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3
O-O 8.h3 d6 9.c3 h6 10.d3 Be6 11.Bc2 Re8 12.a3 Bf8 13.d4 Bd7
14.Nbd2 g6 15.Nf1 Bg7 16.d5 Ne7 17.c4 c6 18.Ne3 cxd5 19.cxd5
Nh5 20.Kh2 Rf8 21.Bd2 f5 22.exf5 gxf5 23.Nh4 Nf4 24.g3 Nfg6
25.Neg2 Nxh4 26.Nxh4 Rc8 27.f4 e4 28.Rb1 Rf7 29.Bb3 a5 30.Re2
a4 31.Ba2 Bf6 32.Ng2 Rg7 33.Bb4 Be8 34.Rc2 Rxc2 35.Qxc2 Bf7
36.Rd1 Kh7 37.Qf2 Bh5 38.Rd2 Ng6 39.Bb1 Bf3 40.Ne1 Bh5 41.Ng2
Bf3 42.Ne3 Ne7 43.Qe1 Qb6 44.Nxf5 Nxf5 45.Bxe4 1-0

[Event "Moscow (Russia)"]
[Site "Moscow (Russia)"]
[Date "1961.??.??"]
[EventDate "?"]
[Round "6"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Boris Spassky"]
[ECO "E17"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "57"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O
7. Nc3 Ne4 8. Nxe4 Bxe4 9. Ne1 Bxg2 10. Nxg2 d5 11. Qa4 dxc4
12. Qxc4 c5 13. Be3 cxd4 14. Bxd4 Nd7 15. Rfd1 Rc8 16. Qa4 Rc7
17. Be5 Rb7 18. Rac1 b5 19. Qe4 Qa8 20. Bd4 Nf6 21. Qc6 Rd7
22. Qxb5 Rfd8 23. e3 Ne4 24. h4 Bf6 25. Qa4 Bxd4 26. exd4 e5
27. d5 Rxd5 28. Rxd5 Qxd5 29. Ne3 1/2-1/2

[Event "Moscow it"]
[Site "URS"]
[Date "1961.??.??"]
[EventDate "?"]
[Round "15"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Tudev Ujtumen"]
[ECO "A14"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "69"]

1.c4 Nf6 2.Nf3 e6 3.g3 d5 4.Bg2 Be7 5.O-O O-O 6.d4 c6 7.Nc3
Nbd7 8.b3 Qb6 9.Qc2 Qa6 10.Nd2 Ba3 11.e4 Bxc1 12.Raxc1 dxe4
13.Ndxe4 Nxe4 14.Nxe4 Qa3 15.Rfe1 a5 16.c5 a4 17.Qc3 h6 18.Nd6
Ra6 19.Nc4 Qxa2 20.bxa4 Rxa4 21. Rc2 Rxc4 22.Qxc4 Qxc4 23.Rxc4
Rd8 24.Ra1 Kf8 25.Ra7 Nf6 26.Rb4 g5 27.Kf1 Ke8 28.Ke2 Rd7
29.Ra3 Kd8 30.h3 Kc7 31.Re3 Rd8 32.Rf3 Nd5 33.Rxf7+ Kb8 34.Rb3
Nc7 35.Bxc6 1-0

[Event "Moscow (Russia)"]
[Site "Moscow (Russia)"]
[Date "1961.??.??"]
[EventDate "?"]
[Round "8"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Alexander Zaitsev"]
[ECO "D59"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "86"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 O-O 6.e3 h6 7.Bh4 b6
8.cxd5 Nxd5 9.Bxe7 Qxe7 10.Nxd5 exd5 11.Rc1 Be6 12.Qa4 c5
13.dxc5 bxc5 14.Qa3 Nd7 15.Bb5 Rfc8 16.O-O Nb6 17.Nd4 Bd7
18.Bxd7 Nxd7 19.Rfd1 Qf6 20.Ne2 Qc6 21.b4 cxb4 22.Qxb4 Qa6
23.Qd2 Rxc1 24.Rxc1 Nf6 25.Qc2 Qd6 26.h3 Rb8 27.Nd4 Ne4 28.Rd1
Nf6 29.Qa4 Qc5 30.Nb3 Qe7 31.Rc1 Kh7 32.Qf4 Rb7 33.Qf5+ g6
34.Qf4 Kg7 35.Rc6 Rb4 36.Nd4 Rc4 37.a4 Rxc6 38.Nxc6 Qc5 39.Ne5
Qc3 40.f3 h5 41.h4 Qe1+ 42.Kh2 Ng4+ 43.fxg4 Qxh4+ 1/2-1/2

[Event "URS-ch30 Yerevan ,URS"]
[Site "URS-ch30 Yerevan ,URS"]
[Date "1962.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Nikolai V Krogius"]
[Black "Viktor Korchnoi"]
[ECO "B44"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "98"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nb5 d6 6. c4 Nf6
7. N1c3 a6 8. Nd4 Be7 9. Be2 O-O 10. O-O Bd7 11. Be3 Nxd4
12. Qxd4 Bc6 13. f3 Qb8 14. Qd3 b5 15. cxb5 axb5 16. Nxb5 d5
17. e5 Bxb5 18. Qxb5 Qxe5 19. Qb6 Rfb8 20. Qd4 Bd6 21. f4 Qxd4
22. Bxd4 Ra4 23. Bxf6 gxf6 24. b3 Rxf4 25. Rxf4 Bxf4 26. Rb1
f5 27. g3 Be3+ 28. Kg2 Rc8 29. a4 Rc2 30. Kf1 Ra2 31. b4 Rxa4
32. b5 Ra7 33. h3 Kf8 34. g4 fxg4 35. hxg4 h6 36. Kg2 Kg7
37. Rb3 Bd4 38. Rd3 Ra2 39. Kf1 Ra4 40. Kg2 Rb4 41. Bd1 Bb6
42. Rb3 Rxb3 43. Bxb3 Kf6 44. Kg3 Ke5 45. Kf3 Kd4 46. Bc2 e5
47. Bh7 Bc7 48. Bg8 e4+ 49. Ke2 f6 0-1

[Event "URS-ch"]
[Site "URS-ch"]
[Date "1962.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Boris Spassky"]
[ECO "B44"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "80"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nb5 d6 6. c4 Nf6
7. N5c3 Be7 8. Be2 O-O 9. O-O b6 10. b3 Bb7 11. Bb2 Rc8
12. Nd2 Nd7 13. f4 Bf6 14. Nf3 Nc5 15. Qd2 Bxc3 16. Qxc3 f6
17. Nd2 Qe7 18. Qh3 e5 19. Bg4 Rce8 20. f5 Nd8 21. Bh5 Nf7
22. Qe3 a5 23. h4 Bc6 24. Bc3 Ra8 25. a4 Kh8 26. Rac1 Rg8
27. Qf3 Raf8 28. Bxf7 Qxf7 29. h5 g6 30. hxg6 hxg6 31. Kf2 Kg7
32. g4 Rh8 33. Rh1 Qb7 34. Ke3 g5 35. Rxh8 Rxh8 36. Rh1 Qa8
37. Bb2 Qg8 38. Ba3 Kf7 39. Bxc5 bxc5 40. Rxh8 Qxh8 1/2-1/2

[Event "Ch URS"]
[Site "Erevan (Armenia)"]
[Date "1962.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Leonid Stein"]
[Black "Nikolai V Krogius"]
[ECO "D78"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "91"]

1.Nf3 Nf6 2.d4 g6 3.c4 Bg7 4.g3 c6 5.Bg2 d5 6.O-O O-O 7.Nbd2
Ne4 8.Qb3 Qb6 9.e3 Nd7 10.cxd5 Qxb3 11.axb3 cxd5 12.Nxe4 dxe4
13.Ng5 e5 14.Nxe4 exd4 15.exd4 Bxd4 16.Rd1 Bg7 17.Nd6 Nc5
18.Be3 Ne6 19.Nxc8 Raxc8 20.Bxb7 Rc7 21.Rxa7 Nc5 22.Rc1 Rxb7
23.Bxc5 Rxa7 24.Bxa7 Bxb2 25.Rb1 Be5 26.b4 f6 27.Rd1 Rf7
28.Rd8+ Kg7 29.Bc5 Rb7 30.Kf1 Kf7 31.Ke2 Bc3 32.Rd3 Be5 33.Kd2
Ke6 34.f4 Bb8 35.Kc3 g5 36.fxg5 fxg5 37.Kc4 Kf5 38.b5 Kg4
39.b6 Kh3 40.Rd2 h5 41.Kb5 g4 42.Kc6 Rf7 43.Rd8 Be5 44.Rd5
Rf6+ 45.Kb5 Re6 46.b7 1-0

[Event "URS-ch30 Yerevan ,URS"]
[Site "URS-ch30 Yerevan ,URS"]
[Date "1962.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Alexey Suetin"]
[Black "Nikolai V Krogius"]
[ECO "B45"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "46"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Ndb5 Bb4
7.a3 Bxc3+ 8.Nxc3 d5 9.exd5 exd5 10.Bd3 O-O 11.O-O d4 12.Ne4
Nxe4 13.Bxe4 Qf6 14.Qd3 h6 15.Re1 Be6 16.Qb5 Rab8 17.g3 Rbe8
18.Bd2 Bc8 19.Bg2 Qg6 20.Bb4 Rxe1+ 21.Rxe1 Nxb4 22.Qxb4 Qxc2
23.Qxd4 b6 1/2-1/2

[Event "Leningrad"]
[Site "Leningrad"]
[Date "1962.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Mark Taimanov"]
[Black "Nikolai V Krogius"]
[ECO "A21"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "132"]

1.c4 e5 2.Nc3 d6 3.d4 exd4 4.Qxd4 Nc6 5.Qd2 g6 6.b3 Bg7 7.Bb2
Nf6 8.g3 O-O 9.Bg2 Bf5 10.Nh3 Re8 11.O-O Bxh3 12.Bxh3 Ne4
13.Nxe4 Rxe4 14.Bg2 Re8 15.e3 Qe7 16.Rfd1 Bxb2 17.Qxb2 a5
18.Rac1 Ra6 19.Qa3 Rb8 20.c5 dxc5 21.Qxc5 Qxc5 22.Rxc5 a4
23.Rd7 axb3 24.axb3 Ra1+ 25.Bf1 Rc8 26.Kg2 Ra5 27.Rc3 Re5
28.Ba6 bxa6 29.Rxc6 Rb5 30.Rxa6 Rxb3 31.Rf6 Rf8 32.Rxc7 Kg7
33.Ra6 h5 34.e4 Rb5 35.Re7 Rbb8 36.Rae6 Rfc8 37.Ra6 Re8
38.Rxe8 Rxe8 39.Kf3 Rb8 40.Rd6 Rb3+ 41.Kf4 h4 42.f3 hxg3
43.hxg3 Ra3 44.e5 Rb3 45.Rd7 Kf8 46.Kg4 Re3 47.f4 Kg7 48.Kh4
g5 49.Kxg5 Rxg3+ 50.Kf5+ Rc3 51.Re7 Ra3 52.Kg5 Kf8 53.Rd7 Rg3+
54.Kf5 Rg1 55.e6 fxe6 56.Kf6 Ke8 57.Re7+ Kf8 58.Ra7 Ke8 59.Ra6
Rh1 60.Rxe6+ Kf8 61.f5 Rh7 62.Ke5 Re7 63.Kd6 Rf7 64.Ke5 Re7
65.Kd5 Ra7 66.Rg6 Kf7 1/2-1/2

[Event "USSR"]
[Site "USSR"]
[Date "1962.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Nikolai V Krogius"]
[Black "Mark Taimanov"]
[ECO "B49"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "60"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 a6 6.Be3 Qc7 7.Be2
b5 8.Nxc6 dxc6 9.O-O Nf6 10.f4 b4 11.Na4 c5 12.c3 Rb8 13.cxb4
Rxb4 14.Rc1 Rxe4 15.Nxc5 Rxe3 16.Nxa6 Qd8 17.Bb5+ Bd7 18.Nc7+
Ke7 19.Qa4 Bxb5 20.Nxb5 Nd5 21.Qa7+ Kf6 22.Qd4+ Kg6 23.f5 Kh6
24.Nc7 Qf6 25.Qa7 Qe5 26.Nxd5 exd5 27.Rc6+ g6 28.fxg6 fxg6
29.Rcf6 Be7 30.R6f4 Bg5 0-1

[Event "Yerevan URS ch"]
[Site "11"]
[Date "1962.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Mikhail Tal"]
[Black "Nikolai V Krogius"]
[ECO "C89"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "73"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3
O-O 8.c3 d5 9.exd5 Nxd5 10.Nxe5 Nxe5 11.Rxe5 c6 12.d4 Bd6
13.Re1 Qh4 14.g3 Qh3 15.Be3 Bg4 16.Qd3 Rae8 17.Nd2 Re6 18.Bxd5
cxd5 19.a4 b4 20.Qf1 Qh5 21.c4 dxc4 22.Qxc4 g5 23.d5 Rh6 24.h4
Rc8 25.Qd3 gxh4 26.Bxh6 hxg3 27.fxg3 Qxh6 28.Rac1 Rxc1 29.Rxc1
Bb8 30.Qd4 Bd7 31.Rc2 Qh5 32.Ne4 Be5 33.Qd2 Bxa4 34.d6 Qg6
35.Rc5 Bf6 36.Nxf6+ Qxf6 37.d7 1-0

[Event "Ch URS"]
[Site "URS"]
[Date "1962.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Alexander Zaitsev"]
[Black "Nikolai V Krogius"]
[ECO "E24"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "32"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 c5 6.e4 Qa5 7.e5
Ne4 8.Bd2 Nc6 9.Ne2 b6 10.f4 cxd4 11.Nxd4 Ba6 12.Nxc6 dxc6
13.Qf3 Nxd2 14.Qxc6+ Ke7 15.Qd6+ Ke8 16.Qc6+ Ke7 1/2-1/2

[Event "URS-ch30"]
[Site "Yerevan"]
[Date "1962.11.22"]
[EventDate "?"]
[Round "3"]
[Result "1/2-1/2"]
[White "Vladimir A Savon"]
[Black "Nikolai V Krogius"]
[ECO "C93"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "98"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O d6 6.Re1 Be7 7.c3
O-O 8.h3 b5 9.Bb3 h6 10.d4 Re8 11.Nbd2 Bf8 12.Bc2 Bb7 13.d5
Ne7 14.b3 Ng6 15.Bd3 Nd7 16.Bf1 c6 17.g3 b4 18.c4 Nc5 19.Bb2
a5 20.Nh2 Ne7 21.Ng4 cxd5 22.cxd5 f5 23.exf5 Nxf5 24.Ne4 Nxe4
25.Rxe4 Re7 26.Ne3 Nxe3 27.Rxe3 Rc8 28.Bg2 Rf7 29.Be4 Rc5
30.Rc1 Qc8 31.Rxc5 Qxc5 32.Re2 Qc8 33.Kg2 Rc7 34.Rc2 Rxc2
35.Bxc2 Be7 36.Be4 Qe8 37.Bc1 Qb5 38.h4 Bd8 39.Kh2 Qd7 40.Be3
Qf7 41.Qd3 Bc8 42.Bg2 Bf5 43.Be4 Bc8 44.Bg2 Bf5 45.Qa6 Qc7
46.Bh3 Be4 47.Be6+ Kh7 48.Qb5 Qe7 49.Qe2 Qf6 1/2-1/2

[Event "URS-ch30"]
[Site "Yerevan"]
[Date "1962.11.22"]
[EventDate "?"]
[Round "9"]
[Result "1/2-1/2"]
[White "Anatoly Bannik"]
[Black "Nikolai V Krogius"]
[ECO "B92"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "45"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nf3
Be7 8.Be3 Qc7 9.O-O O-O 10.a4 h6 11.h3 Nbd7 12.Nd2 b6 13.Bc4
Bb7 14.Qe2 Nc5 15.f3 Rfd8 16.Nd5 Nxd5 17.Bxd5 Bxd5 18.exd5 Bg5
19.Bxg5 hxg5 20.Qe3 f6 21.Rfc1 b5 22.b3 Qb7 23.c4 1/2-1/2

[Event "Kislovodsk"]
[Site "Kislovodsk"]
[Date "1962.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Boris T Vladimirov"]
[ECO "A08"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "69"]

1.e4 c5 2.Nf3 e6 3.d3 d5 4.Nbd2 Nc6 5.g3 Nf6 6.Bg2 Be7 7.O-O
e5 8.exd5 Nxd5 9.Re1 f6 10.c3 Nb6 11.Ne4 O-O 12.Qb3+ Kh8
13.Be3 Qxd3 14.Nxc5 Qc4 15.Nd2 Qg4 16.a4 f5 17.f3 Qg6 18.a5 f4
19.Bf2 fxg3 20.hxg3 Bxc5 21.Bxc5 Be6 22.Qd1 Nd5 23.Bxf8 Qxg3
24.Nf1 Qg6 25.Bc5 Nf4 26.Ne3 Qg3 27.Rf1 Bc4 28.Qe1 Ne2+ 29.Kh1
Qf4 30.Bh3 Qh6 31.Kh2 Qf4+ 32.Kg2 Qg5+ 33.Kh2 Qf4+ 34.Kg2 Qg5+
35.Kh2 1/2-1/2

[Event "URS-ch30"]
[Site "Yerevan"]
[Date "1962.11.22"]
[EventDate "?"]
[Round "6"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Ratmir Kholmov"]
[ECO "B46"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "48"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Nc6 6.Be2 Qc7 7.O-O
Nxd4 8.Qxd4 Ne7 9.Be3 Nc6 10.Qb6 Qb8 11.Bc5 Bxc5 12.Qxc5 b6
13.Qe3 O-O 14.Na4 b5 15.Nb6 Ra7 16.Rad1 Rb7 17.Nxc8 Rxc8
18.Rd2 Qa7 19.Qxa7 Rxa7 20.Rfd1 Rcc7 21.c3 Nb8 22.Rd6 Nc6
23.R6d2 Nb8 24.Rd6 Nc6 1/2-1/2

[Event "Kislovodsk"]
[Site "Kislovodsk"]
[Date "1962.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Viacheslav Osnos"]
[Black "Nikolai V Krogius"]
[ECO "E62"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "49"]

1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.g3 O-O 5.Bg2 c6 6.O-O d6 7.Nc3
Qa5 8.h3 e5 9.e4 exd4 10.Nxd4 Qc5 11.Nb3 Qxc4 12.Qxd6 Na6
13.Be3 Qe6 14.Qd2 Qe7 15.f4 Be6 16.e5 Nd7 17.Qf2 f6 18.exf6
Nxf6 19.Nc5 Nb4 20.Rfe1 Bf7 21.Bd4 Qc7 22.Be5 Qb6 23.a3 Nbd5
24.N3a4 Qb5 25.Bf1 1-0

[Event "RSFSR Tch"]
[Site "RSFSR Tch"]
[Date "1962.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "V Nadtochiev"]
[Black "Nikolai V Krogius"]
[ECO "B93"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "71"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qb6
7. Be2 Nc6 8. Nb3 e6 9. Bf3 Be7 10. Qe2 O-O 11. Be3 Qc7 12. a4
b6 13. O-O Rb8 14. Kh1 Bb7 15. Bf2 Rfe8 16. Rad1 Na5 17. Nxa5
bxa5 18. Bd4 e5 19. Be3 Ba8 20. Bc1 Rb6 21. Rd3 exf4 22. Bxf4
Bf8 23. Be3 Rb4 24. Bd4 Nd7 25. e5 Rbb8 26. Bxa8 Rxa8 27. Nd5
Qc4 28. Qf3 Nxe5 29. Bxe5 dxe5 30. Qxf7+ Kh8 31. Rc3 Qa2
32. Rb3 Bb4 33. Rg3 Rg8 34. Rh3 Rgf8 35. Rxh7+ Kxh7 36. Nf6+
1-0

[Event "USSR"]
[Site "USSR"]
[Date "1962.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Nikolai V Krogius"]
[Black "Lev Aronin"]
[ECO "D93"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "109"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Qb3 O-O
7. Nf3 Qa5 8. cxd5 Nxd5 9. Be5 Bh6 10. Nd2 Nd7 11. Bg3 N7f6
12. Be2 b5 13. Nxd5 Nxd5 14. Bf3 Be6 15. Qd3 c5 16. O-O c4
17. Qe2 Rac8 18. Ne4 Nb4 19. Nc5 Rxc5 20. dxc5 Nd3 21. c6 Bg7
22. Rfb1 Qb4 23. b3 Bxa1 24. Rxa1 Qc3 25. Rd1 Nc1 26. Qe1 Nxa2
27. bxc4 b4 28. Bd5 Bxd5 29. cxd5 b3 30. d6 exd6 31. Bxd6 Rc8
32. c7 Qxe1+ 33. Rxe1 a5 34. Be5 Kf8 35. Rd1 Ke7 36. Rd8 Rxc7
37. Bxc7 b2 38. Rd1 Nc1 39. Bd6+ Ke6 40. Ba3 b1=Q 41. Rxc1 Qb3
42. Bc5 a4 43. Bd4 a3 44. h3 a2 45. Rc6+ Kd5 46. Ra6 Ke4
47. Kh2 f5 48. f3+ Kd3 49. f4 Ke2 50. Kg3 Kf1 51. Kh4 Qc4
52. Ra7 h6 53. g4 fxg4 54. hxg4 Qe2 55. f5 0-1

[Event "Leningrad"]
[Site "?"]
[Date "1962.??.??"]
[EventDate "1962.??.??"]
[Round "?"]
[Result "0-1"]
[White "Nikolai V Krogius"]
[Black "Valter Heuer"]
[ECO "C09"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "81"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 exd5 5.Bb5 Nc6 6.Ngf3 Bd6
7.O-O Nge7 8.dxc5 Bxc5 9.Nb3 Bd6 10.Nfd4 O-O 11.Qh5 Ne5 12.Bd3
g6 13.Qd1 N7c6 14.Be2 Qh4 15. f4 Nxd4 16.Qxd4 Bc7 17.Be3 Nc6
18.Qd2 Re8 19.Kh1 Bf5 20.Bd3 Be4 21.Nc5 Bb6 22.Rae1 Bxg2
23.Kxg2 d4 24.Qf2 Qxf2 25.Bxf2 Bxc5 26.a3 Kf8 27.Bb5 Bb6
28. Kf3 Rad8 29.Rxe8 Rxe8 30.Rd1 Rd8 31.Rd3 h6 32.h4 Ne7 33.h5
Rd5 34.Ba4 Rxh5 35.Bxd4 Rh3 36.Ke2 Rxd3 37.Kxd3 Bxd4 38.Kxd4
h5 39.Bd7 Nc6 40.Ke4 f5 41. Ke3 0-1

[Event "USSR"]
[Site "USSR"]
[Date "1962.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Andrey Kuznetsov"]
[ECO "A57"]
[WhiteElo "2485"]
[BlackElo "?"]
[PlyCount "63"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 e6 5. Nc3 exd5 6. Nxd5 Bb7
7. e4 Nxe4 8. Bc4 Bd6 9. Nf3 Qa5+ 10. Nd2 Ng5 11. O-O Ne6
12. Ne4 Be5 13. f4 Bd4+ 14. Qxd4 Nxd4 15. Nd6+ Kf8 16. Nxb7
Qa4 17. b3 Nxb3 18. axb3 Qxa1 19. Be3 Qb2 20. Bxc5+ d6
21. Bxd6+ Kg8 22. Ne7+ Kf8 23. Re1 h5 24. Ng6+ Kg8 25. Re8+
Kh7 26. Nxh8 Qd4+ 27. Kf1 a6 28. Nxf7 axb5 29. Ng5+ Kg6
30. Bf7+ Kf5 31. Re5+ Kxf4 32. g3+ 1-0

[Event "30th USSR Championship"]
[Site "Yerevan USSR"]
[Date "1962.11.22"]
[EventDate "?"]
[Round "1"]
[Result "1/2-1/2"]
[White "Vladislav Shiyanovsky"]
[Black "Nikolai V Krogius"]
[ECO "B95"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "66"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.Qf3
Nbd7 8.O-O-O Qc7 9.Qg3 h6 10.Be3 Nc5 11.f3 Bd7 12.Nb3 Na4
13.Nxa4 Bxa4 14.Rd3 Rc8 15.Rc3 Qd7 16.Bd4 e5 17.Rxc8+ Qxc8
18.Bc3 Nh5 19.Qf2 Bxb3 20.axb3 Be7 21.Bc4 O-O 22.Rd1 Nf4
23.Kb1 b5 24.Bd5 Nxd5 25.Rxd5 f5 26.exf5 Rxf5 27.Bb4 Qe6
28.Qd2 e4 29.fxe4 Rf1+ 30.Ka2 Qxe4 31.Rd4 Qf5 32.Qe2 Bf8 33.g4
Qf2 1/2-1/2

[Event "30th USSR Championship"]
[Site "Yerevan USSR"]
[Date "1962.11.26"]
[EventDate "?"]
[Round "4"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Arkady Novopashin"]
[ECO "A34"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "62"]

1.c4 c5 2.Nc3 g6 3.g3 Bg7 4.Bg2 d6 5.Nf3 Nc6 6.O-O Nh6 7.d3 a6
8.Bd2 O-O 9.a3 Rb8 10.Ne1 Bd7 11.Nc2 Nf5 12.b4 b5 13.cxb5 cxb4
14.bxc6 bxc3 15.Be1 Be6 16.d4 Bb3 17.Bxc3 d5 18.Qd2 Qd6 19.Nb4
Bc4 20.Rfe1 a5 21.Nc2 Qxc6 22.Bxa5 Rfc8 23.Bb4 e6 24.Rac1 Qa6
25.e3 Nd6 26.Bxd6 Qxd6 27.Nb4 Ra8 28.Rc3 Bf8 29.Bf1 Rxa3
30.Rxa3 Qxb4 31.Qxb4 Bxb4 1/2-1/2

[Event "30th USSR Championship"]
[Site "Yerevan USSR"]
[Date "1962.11.27"]
[EventDate "?"]
[Round "5"]
[Result "1/2-1/2"]
[White "Igor Arkadievich Zaitsev"]
[Black "Nikolai V Krogius"]
[ECO "B97"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "56"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4
Qb6 8.Qd2 Qxb2 9.Rb1 Qa3 10.Bxf6 gxf6 11.Be2 Bg7 12.Rb3 Qa5
13.f5 O-O 14.O-O Nc6 15.Nxc6 bxc6 16.Qxd6 exf5 17.Qxc6 Be6
18.Nd5 fxe4 19.c4 Qd2 20.Ne7+ Kh8 21.Qxe4 f5 22.Qe3 Rad8
23.Nd5 Qxa2 24.Ra3 Qb2 25.Kh1 Bxd5 26.cxd5 Qd4 27.Qxd4 Bxd4
28.Rxa6 Rxd5 1/2-1/2

[Event "30th USSR Championship"]
[Site "Yerevan USSR"]
[Date "1962.12.02"]
[EventDate "?"]
[Round "8"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "A Korelov"]
[ECO "B40"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "101"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Bb4 6.e5 Ne4 7.Qg4
Qa5 8.Qxe4 Bxc3+ 9.bxc3 Qxc3+ 10.Kd1 Qxa1 11.Nb5 Nc6 12.Nc7+
Kd8 13.Nxa8 Qxe5 14.Qxe5 Nxe5 15.Ba3 d5 16.Bd6 Ng4 17.Ke1 Bd7
18.Nc7 a6 19.Na8 Ba4 20.Nb6 Bxc2 21.f3 Nf6 22.Kd2 Bf5 23.Be2
Nd7 24.Rc1 Nxb6 25.Bc7+ Kd7 26.Bxb6 Rc8 27.Rxc8 Kxc8 28.Kc3
Kd7 29.f4 Be4 30.g4 f6 31.Kd4 Kc6 32.Ba5 g5 33.Bd8 gxf4
34.Bxf6 f3 35.Bf1 a5 36.a3 b5 37.Be7 Bc2 38.Ke3 Bd1 39.Bd3 e5
40.Bxh7 d4+ 41.Kf2 Kd5 42.Bg8+ Kc6 43.Bf6 Kd6 44.h4 b4 45.axb4
axb4 46.h5 d3 47.h6 d2 48.Bxe5+ Kc5 49.Bf4 b3 50.Bxd2 b2
51.Bh7 1-0

[Event "30th USSR Championship"]
[Site "Yerevan USSR"]
[Date "1962.12.07"]
[EventDate "?"]
[Round "12"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Eduard A Mnatsakanian"]
[ECO "D19"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "123"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.e3 e6 7.Bxc4
Bb4 8.O-O O-O 9.Qe2 Bg6 10.Ne5 Nbd7 11.Nxg6 hxg6 12.Rd1 Qe7
13.e4 e5 14.d5 cxd5 15.Nxd5 Nxd5 16.Bxd5 Nb6 17.Bb3 Rfd8
18.Be3 Rxd1+ 19.Rxd1 Rd8 20.Rxd8+ Qxd8 21.g3 Qd7 22.h4 Nxa4
23.Bxa7 b6 24.Bb8 Nc5 25.Bd5 Qe8 26.Bc7 Nd7 27.Qa6 Bc5 28.Bc6
Qe6 29.Bd5 Qh3 30.Qd3 Nf6 31.Qf3 Bd4 32.Bd8 Qg4 33.Kg2 Qxf3+
34.Kxf3 Nxd5 35.exd5 f5 36.b3 Kf7 37.Ke2 Ke8 38.Bc7 Kd7 39.Bb8
e4 40.f3 b5 41.fxe4 fxe4 42.g4 Ke7 43.Bf4 Kd7 44.Be3 Be5
45.Bc5 Bf4 46.Bf8 Kc7 47.Bxg7 Kd6 48.h5 gxh5 49.gxh5 Ke7
50.d6+ Bxd6 51.Ke3 Kf7 52.Bd4 Kg8 53.Kxe4 Kh7 54.Be3 Bb4
55.Kd5 Bc3 56.Kc5 b4 57.Kc4 Be1 58.Kd3 Bc3 59.Bd2 Bf6 60.Kc4
Be7 61.Bxb4 Bg5 62.Kd3 1-0

[Event "30th USSR Championship"]
[Site "Yerevan USSR"]
[Date "1962.12.10"]
[EventDate "?"]
[Round "13"]
[Result "0-1"]
[White "Vladas Ivanovich Mikenas"]
[Black "Nikolai V Krogius"]
[ECO "A18"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "80"]

1.c4 e6 2.Nc3 Nf6 3.e4 d5 4.cxd5 exd5 5.e5 Ne4 6.d3 Nxc3
7.bxc3 d4 8.Bd2 Nc6 9.f4 dxc3 10.Bxc3 Bc5 11.Nf3 Bg4 12.Be2
O-O 13.Ng5 Bd4 14.Rc1 Bxe2 15.Qxe2 Bxe5 16.fxe5 Qxg5 17.O-O
Rad8 18.d4 Qh4 19.g3 Qh3 20.Rf4 Qe6 21.Rcf1 Ne7 22.Qc2 Nd5
23.Rh4 g6 24.Bb2 f5 25.exf6 Rxf6 26.Rxf6 Qxf6 27.Qe2 Rf8
28.Ba3 Qf3 29.Qxf3 Rxf3 30.Bc1 Rd3 31.Bh6 Rd1+ 32.Kf2 Ra1
33.Kf3 Rxa2 34.Ke4 Nf6+ 35.Ke5 Kf7 36.d5 Ra5 37.Rd4 c6 38.Bg5
Rxd5+ 39.Rxd5 Nxd5 40.Kd6 a5 0-1

[Event "30th USSR Championship"]
[Site "Yerevan USSR"]
[Date "1962.12.12"]
[EventDate "?"]
[Round "15"]
[Result "1/2-1/2"]
[White "German Khodos"]
[Black "Nikolai V Krogius"]
[ECO "E56"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "94"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 c5 6.Bd3 d5 7.O-O
Nc6 8.a3 Ba5 9.Ne2 cxd4 10.exd4 dxc4 11.Bxc4 h6 12.Ba2 Bc7
13.Nc3 Ne7 14.Re1 b6 15.Ne5 Bb7 16.Bb1 Nf5 17.Be3 Rc8 18.Bc2
Nd5 19.Bc1 Qh4 20.Bxf5 exf5 21.Qf3 Qxd4 22.Nb5 Qh4 23.Nxc7
Rxc7 24.Qxf5 Nf6 25.Be3 Be4 26.Qf4 Qxf4 27.Bxf4 Rc2 28.Nd7
Nxd7 29.Rxe4 Nf6 30.Ra4 a5 31.Be5 Re8 32.Bxf6 gxf6 33.Rg4+ Kf8
34.Rf4 Re6 35.b4 Ra2 36.Rd1 Rxa3 37.bxa5 Rxa5 38.g3 Rc5 39.Rd7
b5 40.Rb7 f5 41.Rb4 Ree5 42.Kg2 Kg7 43.Rb6 Red5 44.Kg1 h5
45.Kg2 Re5 46.Rh4 Re6 47.Rb8 f4 1/2-1/2

[Event "30th USSR Championship"]
[Site "Yerevan USSR"]
[Date "1962.12.19"]
[EventDate "?"]
[Round "19"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Yury Isakovich Kots"]
[ECO "B73"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "47"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.Be2
O-O 8.O-O Nc6 9.Qd2 d5 10.exd5 Nxd5 11.Nxd5 Nxd4 12.c4 Nxe2+
13.Qxe2 e6 14.Nc3 Bd7 15.Rfd1 Qc7 16.Rac1 Bc6 17.Nd5 Qa5
18.Ne7+ Kh8 19.Nxc6 bxc6 20.b3 Rad8 21.Rxd8 Rxd8 22.Rd1 Rxd1+
23.Qxd1 h5 24.Qd2 1/2-1/2

[Event "URS-chT"]
[Site "Leningrad USSR"]
[Date "1962.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Yuri Averbakh"]
[Black "Nikolai V Krogius"]
[ECO "A00"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "61"]

1.g3 g6 2.Bg2 Bg7 3.e4 c5 4.Ne2 Nc6 5.O-O Nf6 6.d4 cxd4 7.Nxd4
Nxd4 8.Qxd4 O-O 9.e5 Ne8 10.Bf4 Nc7 11.Qe3 Ne6 12.Bh6 Bxh6
13.Qxh6 Qc7 14.Re1 d6 15.exd6 Qxd6 16.Nc3 Qd4 17.Rad1 Qg7
18.Qh4 Re8 19.Qb4 Qf8 20.Nd5 Rb8 21.Qa5 a6 22.Nb6 Qg7 23.c3 h6
24.Qb4 Qf8 25.Bh3 Ng5 26.Bxc8 Rbxc8 27.Nd7 Nf3+ 28.Kf1 Qg7
29.Rxe7 a5 30.Rxe8+ Rxe8 31.Qf4 1-0

[Event "Sochi"]
[Site "Sochi"]
[Date "1963.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Lev Polugaevsky"]
[Black "Nikolai V Krogius"]
[ECO "A05"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "64"]

1. Nf3 Nf6 2. g3 g6 3. b3 Bg7 4. Bb2 O-O 5. Bg2 d6 6. d4 e5
7. dxe5 Ng4 8. Nbd2 Nc6 9. O-O dxe5 10. h3 Nh6 11. e4 f5
12. Nc4 Qxd1 13. Raxd1 Nf7 14. exf5 gxf5 15. Nh4 f4 16. Rfe1
Ng5 17. g4 e4 18. Rd5 h6 19. Bxg7 Kxg7 20. Nd2 f3 21. Bf1 Rf4
22. Kh2 Be6 23. Nf5+ Rxf5 24. Rxf5 Bxf5 25. gxf5 Rf8 26. h4
Nh7 27. Rxe4 Rxf5 28. Rg4+ Kh8 29. Bd3 Rf8 30. Be4 Ne5 31. Rg3
Rf4 32. Kh3 b6 1/2-1/2

[Event "11, Sochi"]
[Site "11, Sochi"]
[Date "1963.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Vasily Smyslov"]
[ECO "D13"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "37"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Nf3 Nc6 6. Bf4 e6
7. e3 Bd6 8. Bxd6 Qxd6 9. Bd3 Bd7 10. O-O O-O 11. Rc1 e5
12. dxe5 Nxe5 13. Nxe5 Qxe5 14. Be2 Rac8 15. Qd4 Qxd4 16. exd4
Rfe8 17. Bf3 Bc6 18. Rfe1 Rxe1+ 19. Rxe1 1/2-1/2

[Event "Sochi"]
[Site "Sochi"]
[Date "1963.??.??"]
[EventDate "?"]
[Round "7"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Vladimir Antoshin"]
[ECO "D46"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "37"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 c6 5.e3 Nbd7 6.Bd3 Bd6 7.e4
dxe4 8.Nxe4 Nxe4 9.Bxe4 O-O 10.O-O h6 11.Bc2 e5 12.Be3 Re8
13.dxe5 Nxe5 14.Nxe5 Bxe5 15.Qxd8 Rxd8 16.Rad1 Be6 17.b3 Bc7
18.Rxd8+ Rxd8 19.Rd1 1/2-1/2

[Event "Sochi"]
[Site "Sochi"]
[Date "1963.??.??"]
[EventDate "?"]
[Round "5"]
[Result "1/2-1/2"]
[White "Milko Bobotsov"]
[Black "Nikolai V Krogius"]
[ECO "E10"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "41"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.cxd5 exd5 5.Nc3 c6 6.Bg5 Be7 7.e3
Bf5 8.Bd3 Bxd3 9.Qxd3 Nbd7 10.O-O O-O 11.Rac1 Re8 12.Qc2 Ne4
13.Bxe7 Qxe7 14.Nxe4 dxe4 15.Nd2 Nf6 16.Qc5 Qe6 17.a3 Red8
18.Qb4 Rab8 19.Rc5 Nd5 20.Qa5 a6 21.Nb1 1/2-1/2

[Event "Sochi"]
[Site "Sochi"]
[Date "1963.??.??"]
[EventDate "?"]
[Round "6"]
[Result "1/2-1/2"]
[White "Ratmir Kholmov"]
[Black "Nikolai V Krogius"]
[ECO "B90"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "46"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bc4 e6 7.O-O
Nc6 8.Be3 Be7 9.f4 d5 10.exd5 exd5 11.Bb3 O-O 12.Kh1 Re8 13.f5
Ne5 14.Bg5 Nc4 15.Qf3 h6 16.Bxf6 Bxf6 17.Qxd5 Ne3 18.Qxf7+ Kh8
19.Rf4 Rf8 20.Ne6 Bxe6 21.Qxe6 Qd2 22.Qe4 Rae8 23.Qf3 Nxg2
1/2-1/2

[Event "Sochi"]
[Site "Sochi"]
[Date "1963.??.??"]
[EventDate "?"]
[Round "10"]
[Result "1/2-1/2"]
[White "Julius Kozma"]
[Black "Nikolai V Krogius"]
[ECO "E56"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "47"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O
Nc6 8.a3 Ba5 9.h3 Qe7 10.Ne2 dxc4 11.Bxc4 Bc7 12.Qc2 cxd4
13.Nexd4 Bd7 14.Nb5 Bb6 15.Rd1 Na5 16.Bd3 Rac8 17.Nc3 Nc6
18.Qe2 e5 19.Ng5 h6 20.Nge4 Nxe4 21.Bxe4 f5 22.Nd5 Qf7 23.Nxb6
axb6 24.Bd5 1/2-1/2

[Event "Ch URS"]
[Site "Kiev"]
[Date "1964.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "David Bronstein"]
[Black "Nikolai V Krogius"]
[ECO "C94"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "92"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5
7. Bb3 O-O 8. c3 d6 9. h3 Nb8 10. d3 Nbd7 11. Nbd2 Bb7 12. Nf1
Nc5 13. Bc2 Re8 14. b4 Ne6 15. a4 Bf8 16. Ng3 g6 17. Be3 Bg7
18. Qc1 c5 19. bxc5 Nxc5 20. axb5 axb5 21. Qb2 Bc6 22. Qb4 Na6
23. Qb1 d5 24. d4 Nxe4 25. Nxe4 dxe4 26. Nxe5 Bxe5 27. dxe5
Nc7 28. Rxa8 Qxa8 29. Bd4 Ne6 30. Bxe4 Bxe4 31. Qxe4 Qxe4
32. Rxe4 Rc8 33. Be3 Rxc3 34. Rb4 Nc7 35. Bb6 h5 36. Bxc7 Rxc7
37. Rxb5 Rc2 38. Kf1 Kf8 39. g3 Ke7 40. Kg2 Ke6 41. Kf3 Ra2
42. Ke3 h4 43. gxh4 Ra4 44. Kf3 Rxh4 45. Kg3 Ra4 46. h4 Rc4
1/2-1/2

[Event "Memorial M.Chigorin"]
[Site "Sochi (Russia)"]
[Date "1964.??.??"]
[EventDate "1964.??.??"]
[Round "15"]
[Result "1/2-1/2"]
[White "Boris Spassky"]
[Black "Nikolai V Krogius"]
[ECO "C30"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "90"]

1. e4 e5 2. f4 Nf6 3. Nf3 d5 4. fxe5 Nxe4 5. d3 Nc5 6. Be3 Bg4
7. d4 Ne6 8. c4 Bb4+ 9. Nc3 c5 10. cxd5 Qxd5 11. dxc5 Bxf3
12. Qxf3 Bxc3+ 13. bxc3 Qxe5 14. Bb5+ Nc6 15. Bxc6+ bxc6
16. Qxc6+ Ke7 17. Qb7+ Nc7 18. Qf3 Nd5 19. Kf2 Qxe3+ 20. Qxe3+
Nxe3 21. Kxe3 Kd7 22. Kd4 Kc6 23. Kc4 Rhe8 24. Rad1 Re4+
25. Rd4 Rae8 26. Rb1 Re2 27. Rd6+ Kc7 28. Rbd1 R8e7 29. R1d2
Rxd2 30. Rxd2 Kc6 31. Rd6+ Kc7 32. Ra6 Kb7 33. Kb5 Re2 34. c6+
Kb8 35. c7+ Kc8 36. Rxa7 Rxg2 37. c4 f5 38. c5 Rg6 39. Ra8+
Kxc7 40. Rf8 Rh6 41. Rxf5 Rxh2 42. Rf7+ Kb8 43. Rxg7 Rxa2
44. Kb6 Rb2+ 45. Kc6 Rc2 1/2-1/2

[Event "URS-ch32 Kiev ,URS-c"]
[Site "URS-ch32 Kiev ,URS-c"]
[Date "1964.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Viktor Korchnoi"]
[ECO "D40"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "52"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. g3 cxd4
7. Nxd5 exd5 8. Nxd4 Qb6 9. Nb3 Nc6 10. Bg2 Be6 11. O-O d4
12. Bd2 Rd8 13. Rc1 Nb4 14. Na5 Qxa5 15. a3 Qb5 16. axb4 Bxb4
17. Rc7 Qa5 18. Bf4 Bd6 19. Bxd6 Rxd6 20. Rxb7 O-O 21. Qe1 Qa6
22. Qd2 Re8 23. Rb4 Red8 24. Rd1 h5 25. Bf1 Bg4 26. h3 d3
1/2-1/2

[Event "Memorial M.Chigorin"]
[Site "06"]
[Date "1964.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Nezhmetdinov"]
[ECO "A54"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "81"]

1.d4 Nf6 2.c4 d6 3.Nc3 e5 4.Nf3 Nbd7 5.g3 g6 6.Bg2 Bg7 7.O-O
O-O 8.Qc2 Re8 9.b3 c6 10.Rd1 Qa5 11.d5 e4 12.Nd4 cxd5 13.cxd5
e3 14.f4 a6 15.Na4 Nxd5 16.Ba3 N7f6 17.Bxd6 Bg4 18.b4 Qd8
19.Be5 Rc8 20.Qb3 b6 21.Rac1 Rxc1 22.Rxc1 h5 23.h3 Bd7 24.Nc3
Ne7 25.Nd1 h4 26.g4 Bxg4 27.hxg4 Nxg4 28.Bxg7 Kxg7 29.Qc3 Kg8
30.Bf3 Qd7 31.Nc6 Nd5 32.Qd4 Ngf6 33.Ne5 Qh3 34.Bxd5 Qg3+
35.Kf1 Rd8 36.Nxe3 Nxd5 37.Nxd5 Qh3+ 38.Ke1 Qh1+ 39.Kf2 Rxd5
40.Rxh1 Rxd4 41.Nd3 1-0

[Event "Kiev URS ch"]
[Site "6"]
[Date "1964.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Mikhail Tal"]
[Black "Nikolai V Krogius"]
[ECO "C95"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "96"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3
O-O 8.c3 d6 9.h3 Nb8 10.d4 Nbd7 11.Bg5 Bb7 12.Nbd2 h6 13.Bh4
Nh7 14.Bg3 Bf6 15.Qe2 Ng5 16.Rad1 Re8 17.dxe5 Nxf3+ 18.Nxf3
dxe5 19.Nh4 Bxh4 20.Qg4 Nf6 21.Rxd8 Nxg4 22.Rxa8 Bxa8 23.Bxh4
Nf6 24.f3 Nd7 25.Bf2 Bc6 26.Rd1 Nb6 27.Bxb6 cxb6 28.Rd6 Rc8
29.Re6 fxe6 30.Bxe6+ Kf8 31.Bxc8 a5 32.Kf2 Ke7 33.b4 axb4
34.cxb4 Kf6 35.Ke3 g5 36.g3 Be8 37.f4 gxf4 38.gxf4 Bc6 39.Kf3
Be8 40.a3 Bh5+ 41.Bg4 Be8 42.Kg3 Bf7 43.Bd7 Bc4 44.Kf3 Bf1
45.Bc8 Bc4 46.Ke3 Bf7 47.Bd7 Bc4 48.h4 Ke7 1-0

[Event "Sochi Chigorin mem"]
[Site "URS"]
[Date "1964.??.??"]
[EventDate "?"]
[Round "2"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Tudev Ujtumen"]
[ECO "D35"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "141"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 Be7 6.e3 O-O 7.Qc2
b6 8.Nf3 Na6 9.a3 c5 10.Be2 Nc7 11.Rd1 Bb7 12.O-O Ne4 13.Bxe7
Qxe7 14.dxc5 Qxc5 15.Rc1 Ne6 16.Qd1 Rfd8 17.Nb5 Qe7 18.Nbd4
Rdc8 19.Qa4 N6c5 20.Qd1 Qf6 21. Bd3 g6 22.b4 Nxd3 23.Qxd3 a6
24.h3 b5 25.Nb3 Qb2 26.Nc5 Bc6 27.Qd4 Qxd4 28.Nxd4 Be8 29.Rfd1
Nd6 30.Nd3 Nc4 31.Nf4 Rd8 32.Nb3 Bc6 33.Na5 Nxa5 34. bxa5 Rac8
35.Rc5 Bb7 36.Nd3 Kf8 37.Rdc1 Ke7 38.Kf1 Kd6 39.Ke2 Rb8 40.g3
Rd7 41.Kd2 Re8 42.R5c3 Ba8 43.Nc5 Ra7 44.Nb3 b4 45.axb4 Rb8
46.Nd4 Rxb4 47.Rc8 Rb2+ 48.R1c2 Rxc2+ 49.Rxc2 Rc7 50.Rxc7 Kxc7
51.Kc3 Kd6 52.Kb4 Bb7 53.h4 Bc8 54.Nb3 Bg4 55.Nd4 h5 56.Nb3
Be2 57.Nc5 Bb5 58.f4 Kc6 59.Nb3 Kd6 60.Nd4 Bd7 61.Nf3 Bb5
62.Ne5 Be8 63.Nd3 Bb5 64.Nc5 Kc6 65.e4 dxe4 66. Nxe4 f5 67.Ng5
Kd5 68.Nf7 Bd7 69.Ne5 Be8 70.Nc4 Kd4 71.Nd6 1/2-1/2

[Event "Chigorin mem"]
[Site "Sochi"]
[Date "1964.??.??"]
[EventDate "?"]
[Round "7"]
[Result "1/2-1/2"]
[White "Vladimir Antoshin"]
[Black "Nikolai V Krogius"]
[ECO "E56"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "48"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O
Nc6 8.a3 Ba5 9.cxd5 exd5 10.dxc5 Bxc3 11.bxc3 Bg4 12.c4 Ne5
13.cxd5 Bxf3 14.gxf3 Qxd5 15.Be2 Qxc5 16.Bb2 Rad8 17.Bd4 Qc8
18.Qa4 Rd5 19.f4 b5 20.Qb3 Qh3 21.Bxe5 Ng4 22.Bxg4 Qxg4+
23.Kh1 Qf3+ 24.Kg1 Qg4+ 1/2-1/2

[Event "Chigorin mem"]
[Site "Sochi"]
[Date "1964.??.??"]
[EventDate "?"]
[Round "14"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Milan Matulovic"]
[ECO "D22"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "49"]

1.Nf3 Nf6 2.d4 d5 3.c4 dxc4 4.e3 Bg4 5.Bxc4 e6 6.h3 Bh5 7.Nc3
Nc6 8.Be2 Bd6 9.O-O O-O 10.b3 a6 11.Bb2 Qe7 12.Ne5 Bxe2
13.Nxc6 Bxd1 14.Nxe7+ Bxe7 15.Rfxd1 Rfd8 16.Rac1 c5 17.Ba3 b6
18.dxc5 Rxd1+ 19.Rxd1 Rc8 20.Na4 bxc5 21.Nb6 Rc6 22.Na4 Rc8
23.Nb6 Rc6 24.Na4 Rc8 25.Nb6 1/2-1/2

[Event "Kazan"]
[Site "Kazan"]
[Date "1964.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "G Borisenko"]
[Black "Nikolai V Krogius"]
[ECO "E21"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "69"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3 c5 5.e3 d5 6.a3 Bxc3+ 7.bxc3
O-O 8.Bb2 cxd4 9.cxd4 Ne4 10.Nd2 Qa5 11.f3 Nc3 12.Qc2 Na4
13.Kf2 Nxb2 14.Qxb2 Nc6 15.Bd3 Re8 16.f4 Qd8 17.Rac1 Na5 18.c5
Bd7 19.Qc2 h6 20.Nf3 b6 21.Rb1 Rc8 22.Ba6 Rc7 23.Qd2 Bc8
24.Bd3 Nc4 25.Bxc4 dxc4 26.cxb6 axb6 27.Rhc1 Bb7 28.Rc3 Bxf3
29.gxf3 Rc6 30.Qc2 Qh4+ 31.Kg2 Rec8 32.a4 Qh5 33.Qe4 Qa5
34.Qc2 Qh5 35.Qe4 1/2-1/2

[Event "URS-ch32"]
[Site "Kiev"]
[Date "1964.12.26"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "G Borisenko"]
[ECO "E15"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "85"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6 5.b3 d5 6.Bg2 Bb4+ 7.Bd2
Bxd2+ 8.Nbxd2 Nbd7 9.O-O O-O 10.Re1 Bb7 11.b4 Ne4 12.c5 f5
13.Qc2 bxc5 14.bxc5 Bc6 15.e3 Qf6 16.Nb3 a5 17.Nc1 Ng5 18.Nxg5
Qxg5 19.Rb1 Rfb8 20.Nd3 Qd8 21.Qd2 Bb5 22.Nf4 Nf8 23.h4 Bc4
24.Qc2 Rb4 25.a3 Rxb1 26.Rxb1 Rb8 27.Rb2 Qe8 28.Rxb8 Qxb8
29.Qd1 g6 30.g4 fxg4 31.Qxg4 Qb1+ 32.Kh2 Qf5 33.Qg3 c6 34.Bh3
Qf6 35.Qg5 Kf7 36.Kg3 h5 37.f3 Ba6 38.Kf2 Bb5 39.Ke1 Ba6
40.Kd2 Bb5 41.Qe5 Qe7 42.Qb8 Qxh4 43.Qxf8+ 1-0

[Event "URS Spartakiad"]
[Site "Moscow"]
[Date "1964.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Vladimir A Savon"]
[Black "Nikolai V Krogius"]
[ECO "B41"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "58"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nd2 Ne7 6.g3 e5 7.N4b3
d5 8.exd5 Qxd5 9.Nc4 Qxh1 10.Nd6+ Kd7 11.Ne4+ Ke8 12.Nd6+ Kd7
13.Nxf7+ Ke8 14.Nd6+ Kd7 15.Be3 Nd5 16.Qg4+ Kxd6 17.Qxc8 Nxe3
18.fxe3 Ke7 19.O-O-O Qc6 20.Qd8+ Kf7 21.Na5 Qc5 22.Bc4+ Kg6
23.Bd3+ e4 24.Bxe4+ Kh6 25.Bxb7 Ra7 26.Qxb8 Qxe3+ 27.Kb1 g6
28.Qd8 Qe5 29.Qh4+ Qh5 1-0

[Event "URS-ch32"]
[Site "Kiev"]
[Date "1964.12.26"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Anatoly Bannik"]
[ECO "E10"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "48"]

1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 d6 5.Nc3 Be7 6.e4 O-O 7.Be2 e5
8.O-O Ne8 9.Ne1 Nd7 10.Nd3 Nb6 11.b3 Bg5 12.Bg4 g6 13.Bxc8
Rxc8 14.Bxg5 Qxg5 15.g3 Nd7 16.Qc1 h6 17.h4 Qxc1 18.Raxc1 Nc7
19.f4 Rce8 20.Rce1 Kg7 21.Kg2 a6 22.a4 h5 23.a5 Re7 24.Rf2 Ne8
1/2-1/2

[Event "Chigorin mem"]
[Site "Sochi"]
[Date "1964.??.??"]
[EventDate "?"]
[Round "1"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Ratmir Kholmov"]
[ECO "A39"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "57"]

1.Nf3 c5 2.c4 Nf6 3.g3 Nc6 4.Bg2 g6 5.O-O Bg7 6.Nc3 O-O 7.d4
cxd4 8.Nxd4 d6 9.Nxc6 bxc6 10.Bxc6 Rb8 11.Bg2 Qa5 12.Nb5 Bb7
13.Bd2 Qa6 14.Bxb7 Rxb7 15.Bc3 Rc8 16.Na3 d5 17.Qd3 dxc4
18.Qf3 Ne8 19.Nc2 Bxc3 20.bxc3 Rb2 21.Nb4 Qe6 22.Rfe1 Nf6
23.Rab1 Rxb1 24.Rxb1 Kg7 25.Rd1 Rc5 26.Nc2 Qh3 27.Ne3 Rh5
28.Qg2 Qe6 29.g4 1/2-1/2

[Event "URS-ch32"]
[Site "Kiev"]
[Date "1964.12.26"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Ratmir Kholmov"]
[ECO "E19"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "96"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3
Ne4 8.Qc2 Nxc3 9.Qxc3 f5 10.d5 Bf6 11.Qc2 Na6 12.Rd1 Nc5
13.Nd4 Qe7 14.Be3 Bxd4 15.Bxd4 d6 16.b4 Nd7 17.a4 a5 18.bxa5
Rxa5 19.Bc3 Ra7 20.a5 bxa5 21.Rxa5 Rxa5 22.Bxa5 Ne5 23.Bc3 Ng4
24.h3 Nf6 25.Qb2 Bc8 26.Ra1 Ne4 27.Ra7 exd5 28.Ba5 dxc4
29.Rxc7 Qf6 30.Qxf6 Nxf6 31.Rxc4 Ba6 32.Rc2 Rc8 33.Rxc8+ Bxc8
34.Bb4 Ba6 35.e3 d5 36.Bc3 Ne4 37.Bd4 h5 38.Bf3 g6 39.Bd1 Kf7
40.Kg2 Ng5 41.f3 Ke6 42.Ba4 Nf7 43.Kf2 Nd6 44.h4 Bb5 45.Bc2
Nc4 46.g4 hxg4 47.fxg4 Nd6 48.h5 Kf7 1/2-1/2

[Event "URS-ch32"]
[Site "Kiev"]
[Date "1964.12.26"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Evgeni Vasiukov"]
[ECO "A53"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "130"]

1.d4 Nf6 2.c4 d6 3.Nc3 Bf5 4.g3 e5 5.Bg2 c6 6.e4 Bg4 7.f3 Be6
8.d5 cxd5 9.cxd5 Bd7 10.Be3 Na6 11.Nge2 Be7 12.O-O O-O 13.Qd2
Qb8 14.a4 Rc8 15.Ra3 Bd8 16.a5 b5 17.axb6 axb6 18.Rfa1 Qb7
19.Nc1 Ne8 20.Bf1 Nec7 21.Nd3 Nc5 22.Rxa8 Rxa8 23.Qd1 h6
24.Rxa8 Qxa8 25.Nb4 Bg5 26.Bf2 g6 27.h4 Bf6 28.Nc2 Qb7 29.Na3
b5 30.b4 N5a6 31.Nc2 Bd8 32.Bd3 Kg7 33.Qe2 h5 34.Kg2 Qb8
35.Qe3 Qc8 36.Qa7 g5 37.hxg5 Bxg5 38.Ne2 Bd2 39.Be3 Bxb4
40.Nxb4 Nxb4 41.Bb1 Nca6 42.Kf2 Qc7 43.Qxc7 Nxc7 44.Nc1 f6
45.Nb3 Kf7 46.Bb6 Nba6 47.Bd3 Ke7 48.Be2 b4 49.Na5 Ba4 50.Bc4
Kd7 51.Ke2 Kc8 52.Be3 Nc5 53.Kd2 N7a6 54.Bxa6+ Nxa6 55.Bh6 Nc5
56.Bf8 Kc7 57.Nc4 Nb7 58.Be7 Bb5 59.Ne3 b3 60.Bxf6 b2 61.Kc2
Nc5 62.Kxb2 Be2 63.g4 Bxf3 64.gxh5 Bxh5 65.Nc4 Nxe4 1/2-1/2

[Event "URS-ch32"]
[Site "Kiev"]
[Date "1964.12.26"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Viacheslav Osnos"]
[Black "Nikolai V Krogius"]
[ECO "D40"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "86"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 c5 5.e3 Nc6 6.cxd5 Nxd5 7.Bc4
cxd4 8.exd4 Be7 9.O-O O-O 10.a3 a6 11.Qd3 Nxc3 12.Qxc3 Bf6
13.Be3 Ne7 14.a4 Bd7 15.Ne5 Bc6 16.Nxc6 Nxc6 17.Rfd1 Rc8
18.Qd3 Qd6 19.Qe4 Nb4 20.Rac1 Qd7 21.Bb3 Nd5 22.h3 b5 23.axb5
Qxb5 24.Rxc8 Rxc8 25.Qd3 Qb7 26.Bxd5 exd5 27.Rc1 Rxc1+ 28.Bxc1
h5 29.Qc3 g6 30.Be3 Kg7 31.b3 Qb5 32.Qc2 h4 33.Qd1 Qb4 34.Qa1
Qxb3 35.Qxa6 Qb1+ 36.Qf1 Qe4 37.Qd1 Be7 38.Qf3 f5 39.Qxe4 dxe4
40.f3 Kf6 41.fxe4 fxe4 42.Kf1 Ke6 43.Ke2 Kd5 1/2-1/2

[Event "URS-ch32"]
[Site "Kiev"]
[Date "1964.12.26"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Anatoly S Lutikov"]
[Black "Nikolai V Krogius"]
[ECO "C90"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "50"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3
O-O 8.c3 d6 9.d3 Na5 10.Bc2 c5 11.Nbd2 Nc6 12.Nf1 Re8 13.a3
Bf8 14.Bg5 h6 15.Bh4 Be7 16.Ne3 Ng4 17.Bxe7 Nxe7 18.d4 Nxe3
19.Rxe3 Ng6 20.dxc5 dxc5 21.Qd5 Qxd5 22.exd5 Nf4 23.Rxe5 Bb7
24.Rae1 Rxe5 25.Nxe5 Bxd5 1/2-1/2

[Event "Chigorin mem"]
[Site "Sochi"]
[Date "1964.??.??"]
[EventDate "?"]
[Round "11"]
[Result "0-1"]
[White "Maximilian Ujtelky"]
[Black "Nikolai V Krogius"]
[ECO "A15"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "98"]

1.c4 Nf6 2.g3 c6 3.Nf3 g6 4.b3 Bg7 5.Bb2 O-O 6.Bg2 d6 7.O-O e5
8.d3 Nh5 9.Qc2 c5 10.Nc3 Nc6 11.e3 f5 12.Nd5 Be6 13.a3 Rc8
14.Rae1 h6 15.Nd2 Kh7 16.f4 Qd7 17.Nf3 Rce8 18.Nh4 Qd8 19.Bf3
Nf6 20.Bg2 Bf7 21.Re2 exf4 22.gxf4 Nxd5 23.cxd5 Bxb2 24.dxc6
Bf6 25.Nf3 bxc6 26.Kh1 Qb6 27.Nd2 Rb8 28.Nc4 Qc7 29.e4 Bd4
30.exf5 gxf5 31.Rfe1 Rbe8 32.b4 cxb4 33.axb4 Rxe2 34.Rxe2 Re8
35.Rxe8 Bxe8 36.Nd2 d5 37.Nf3 Qxf4 38.h3 Bb6 39.d4 Kg7 40.Qe2
Bf7 41.Qd3 Qe4 42.Qf1 Qf4 43.Qd3 Qe4 44.Qf1 Bh5 45.Ne5 Qxd4
46.Nxc6 Qe3 47.Bxd5 Be2 48.Qa1+ Kh7 49.Bg2 Bf3 0-1

[Event "URS-ch32"]
[Site "Kiev"]
[Date "1964.??.??"]
[EventDate "?"]
[Round "1"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Boris Petrovich Goldenov"]
[ECO "C07"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "50"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 exd5 5.Bb5+ Nc6 6.Ngf3 Bd6
7.O-O Nge7 8.dxc5 Bxc5 9.Nb3 Bb6 10.Be3 Bxe3 11.Bxc6+ bxc6
12.fxe3 O-O 13.Qd4 Re8 14.Qc3 Nf5 15.Rfe1 Qb6 16.Nfd4 Nxd4
17.Nxd4 Bd7 18.b4 a5 19.a3 axb4 20.axb4 Rxa1 21.Rxa1 f5 22.Qc5
Qc7 23.Nf3 f4 24.Ra7 Qc8 25.exf4 Bf5 1-0

[Event "URS-ch32"]
[Site "Kiev"]
[Date "1964.??.??"]
[EventDate "?"]
[Round "2"]
[Result "1/2-1/2"]
[White "Yuri Averbakh"]
[Black "Nikolai V Krogius"]
[ECO "D32"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "41"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 c5 4.e3 Nc6 5.d4 d5 6.cxd5 exd5 7.Be2
cxd4 8.Nxd4 Bd6 9.O-O O-O 10.Ncb5 Bb8 11.Nf3 Ne4 12.Bd2 a6
13.Nbd4 Nxd4 14.Nxd4 Qd6 15.g3 Bh3 16.Re1 Qf6 17.Bf3 Be5
18.Bc3 Rac8 19.Bxe4 dxe4 20.Qh5 Bxd4 21.exd4 1/2-1/2

[Event "URS-ch32"]
[Site "Kiev"]
[Date "1964.??.??"]
[EventDate "?"]
[Round "9"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Andrejs Petersons"]
[ECO "A54"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "67"]

1.d4 Nf6 2.c4 d6 3.Nc3 e5 4.Nf3 Nbd7 5.g3 Be7 6.Bg2 O-O 7.O-O
c6 8.e4 a6 9.Re1 b5 10.c5 Bb7 11.h3 Qc7 12.cxd6 Bxd6 13.Bg5 h6
14.dxe5 Bxe5 15.Nxe5 hxg5 16.Nxd7 Nxd7 17.Qg4 f6 18.f4 Rae8
19.Rad1 Bc8 20.Qf3 Re7 21.e5 gxf4 22.gxf4 fxe5 23.Qxc6 Qxc6
24.Bxc6 Kh8 25.Bg2 Re6 26.Nd5 g6 27.Rd2 Kg7 28.Rde2 a5 29.fxe5
Rf5 30.Rc1 Rf8 31.Rec2 Ree8 32.Rc7 Kh6 33.e6 Ne5 34.e7 1-0

[Event "URS-ch32"]
[Site "Kiev"]
[Date "1964.??.??"]
[EventDate "?"]
[Round "13"]
[Result "1/2-1/2"]
[White "Y Sakharov"]
[Black "Nikolai V Krogius"]
[ECO "B45"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "83"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 d6 6.f4 Nf6 7.Be2
Be7 8.Be3 O-O 9.Qd2 a6 10.O-O-O Qc7 11.g4 b5 12.g5 Nxd4
13.Bxd4 Nd7 14.a3 Bb7 15.f5 exf5 16.exf5 Bxh1 17.Rxh1 Qb7
18.Rf1 b4 19.axb4 Qxb4 20.f6 Bd8 21.fxg7 Re8 22.Bh5 Ne5 23.h4
Rb8 24.b3 Rb7 25.Qf4 Ng6 26.Bxg6 hxg6 27.Kb2 Qc4 28.Rd1 Ba5
29.Ne4 Rxb3+ 30.cxb3 Qe2+ 31.Ka3 Rxe4 32.Qxd6 Re8 33.Bc5 Kxg7
34.Qf6+ Kg8 35.Bd4 Qe7+ 36.Qxe7 Rxe7 37.Bf6 Rb7 38.Rd4 Bb6
39.Rd5 Kf8 40.b4 Ke8 41.Ka4 Bc7 42.Rd4 1/2-1/2

[Event "URS-ch32"]
[Site "Kiev"]
[Date "1964.??.??"]
[EventDate "?"]
[Round "14"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Nikolay Bakulin"]
[ECO "A07"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "153"]

1.Nf3 d5 2.g3 c6 3.Bg2 Bf5 4.O-O Nf6 5.d3 h6 6.Nbd2 Nbd7 7.Qe1
Bh7 8.e4 dxe4 9.dxe4 e5 10.Nh4 Bc5 11.Nf5 O-O 12.Bh3 Re8
13.Qe2 Qc7 14.Re1 Nf8 15.Qf3 Bxf5 16.Qxf5 N8h7 17.Bg2 g6
18.Qf3 Kg7 19.Nf1 Rad8 20.h4 h5 21.Bh3 Qb6 22.Ne3 a5 23.c3 Qa7
24.Rb1 b5 25.Bg2 Rd6 26.Qe2 Red8 27.f3 Nf8 28.Kh2 a4 29.b4
axb3 30.axb3 Ne6 31.b4 Bb6 32.Rd1 Ne8 33.Rxd6 Nxd6 34.Bh3 Nf8
35.Bg2 Ra8 36.Qd2 Qe7 37.Bh3 Ne6 38.Nf5+ gxf5 39.Qh6+ Kg8
40.exf5 Ra2+ 41.Kh1 Qd7 42.fxe6 Ne4 43.Be3 Nxg3+ 44.Kg1 Qd3
45.exf7+ Kxf7 46.Qe6+ Kf8 47.Qf6+ Ke8 48.Qxe5+ Kf8 49.Bc5+
Bxc5+ 50.Qxc5+ Kf7 51.Be6+ Kxe6 52.Qxc6+ Kf5 53.Qc8+ Kf6
54.Qf8+ Ke5 55.Qg7+ Kf4 56.Qf7+ Nf5 57.Qxa2 Nxh4 58.Qh2+ Kg5
59.Qg3+ Kh6 60.Qf4+ Kg7 61.Rf1 Qg6+ 62.Kf2 Qc2+ 63.Kg3 Qg2+
64.Kxh4 Qxf1 65.Kxh5 Qe2 66.Qd4+ Kf7 67.Qd5+ Kg7 68.Kg4 Qf1
69.Kf5 Kf8 70.Ke6 Kg7 71.Kd6 Kh6 72.Kc6 Kh7 73.Kb6 Kg7 74.Qe5+
Kf7 75.f4 Qd3 76.f5 Kg8 77.f6 1-0

[Event "URS-ch32"]
[Site "Kiev"]
[Date "1964.??.??"]
[EventDate "?"]
[Round "15"]
[Result "1/2-1/2"]
[White "Vladimir Liavdansky"]
[Black "Nikolai V Krogius"]
[ECO "D41"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "36"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.Nc3 c5 5.cxd5 Nxd5 6.e4 Nxc3
7.bxc3 cxd4 8.cxd4 Bb4+ 9.Bd2 Bxd2+ 10.Qxd2 O-O 11.Bc4 Nc6
12.O-O b6 13.Rfd1 Bb7 14.Rac1 Na5 15.Bd3 Qe7 16.Qf4 Rac8 17.h3
h6 18.Rxc8 Rxc8 1/2-1/2

[Event "URS-ch32"]
[Site "Kiev"]
[Date "1964.??.??"]
[EventDate "?"]
[Round "18"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Anatoly Lein"]
[ECO "D58"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "38"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 h6 6.Bh4 b6 7.e3 O-O
8.Rc1 Bb7 9.cxd5 Nxd5 10.Bxe7 Qxe7 11.Bd3 Rc8 12.O-O c5
13.Nxd5 Bxd5 14.dxc5 Rxc5 15.Rxc5 bxc5 16.Ne5 Qc7 17.Qa4 Nc6
18.Nxc6 Bxc6 19.Qc2 Qb7 1/2-1/2

[Event "Ch URS"]
[Site "Kiev (Ukraine)"]
[Date "1965.??.??"]
[EventDate "?"]
[Round "17"]
[Result "1/2-1/2"]
[White "Leonid Shamkovich"]
[Black "Nikolai V Krogius"]
[ECO "A07"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "68"]

1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.c4 c5 6.Nc3 Nc6 7.a3
d5 8.cxd5 Nxd5 9.Ng5 e6 10.Nge4 b6 11.d3 Bb7 12.Bg5 f6 13.Bd2
Kh8 14.Rb1 Nxc3 15.bxc3 Qe7 16.Qa4 Ne5 17.c4 Bc6 18.Qc2 f5
19.Ng5 Bxg2 20.Kxg2 Nc6 21.Nf3 e5 22.e3 Rad8 23.Bc3 Rd6
24.Rbd1 Rfd8 25.Rd2 e4 26.dxe4 fxe4 27.Ng1 Rd3 28.Bxg7+ Qxg7
29.Rfd1 Ne5 30.f4 exf3 31.Nxf3 Qb7 32.Rxd3 Qxf3+ 33.Kg1 Nxd3
34.Rxd3 Rf8 1/2-1/2

[Event "URS-ch"]
[Site "URS-ch"]
[Date "1965.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Leonid Shamkovich"]
[Black "Nikolai V Krogius"]
[ECO "A07"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "68"]

1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.c4 c5 6.Nc3 Nc6 7.a3
d5 8.cxd5 Nxd5 9.Ng5 e6 10.Nge4 b6 11.d3 Bb7 12.Bg5 f6 13.Bd2
Kh8 14.Rc1 Nxc3 15.bxc3 Qe7 16.Qa4 Ne5 17.c4 Bc6 18.Qc2 f5
19.Ng5 Bxg2 20.Kxg2 Nc6 21.Nf3 e5 22.e3 Rad8 23.Bc3 Rd6
24.Rcd1 Rfd8 25.Rd2 e4 26.dxe4 fxe4 27.Ng1 Rd3 28.Bxg7+ Qxg7
29.Rfd1 Ne5 30.f4 exf3 31.Nxf3 Qb7 32.Rxd3 Qxf3+ 33.Kg1 Nxd3
34.Rxd3 Rf8 1/2-1/2

[Event "Ch URS"]
[Site "Kiev (Ukraine)"]
[Date "1965.??.??"]
[EventDate "?"]
[Round "11"]
[Result "1-0"]
[White "Leonid Stein"]
[Black "Nikolai V Krogius"]
[ECO "B81"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "69"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 h6 7.g5
hxg5 8.Bxg5 Nc6 9.Qd2 Qb6 10.Nb3 a6 11.O-O-O Bd7 12.Be3 Qc7
13.f4 b5 14.Bg2 Rc8 15.Kb1 Be7 16.Rhe1 b4 17.Na4 Na5 18.Nb6
Nc4 19.Nxc4 Qxc4 20.e5 dxe5 21.fxe5 Nd5 22.Bg1 Rh4 23.Rf1 g5
24.Qc1 a5 25.Nd2 Qb5 26.Ne4 a4 27.Nd6+ Bxd6 28.Qxg5 Bf8
29.Qxh4 b3 30.cxb3 axb3 31.Qh7 f5 32.Bxd5 exd5 33.Qg6+ Ke7
34.Qf6+ Ke8 35.e6 1-0

[Event "Ch URS"]
[Site "Kiev (Ukraine)"]
[Date "1965.??.??"]
[EventDate "?"]
[Round "10"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Alexey Suetin"]
[ECO "D76"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "41"]

1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 O-O 5.Bg2 d5 6.cxd5 Nxd5 7.O-O
Nb6 8.Nc3 Nc6 9.d5 Nb8 10.e4 c6 11.Be3 Bg4 12.Qb3 cxd5 13.exd5
N8d7 14.Rac1 Rc8 15.Ne4 Nf6 16.Nxf6+ Bxf6 17.Nd2 Bf5 18.a4 Qd7
19.Bxb6 Rxc1 20.Rxc1 axb6 21.Ne4 1/2-1/2

[Event "Budapest2"]
[Site "Budapest"]
[Date "1965.02.14"]
[EventDate "?"]
[Round "15"]
[Result "1/2-1/2"]
[White "Viacheslav Osnos"]
[Black "Nikolai V Krogius"]
[ECO "D41"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "56"]

1.Nf3 Nf6 2.d4 d5 3.c4 e6 4.Nc3 c5 5.cxd5 Nxd5 6.e3 Nc6 7.Bc4
cxd4 8.exd4 Be7 9.O-O O-O 10.Re1 a6 11.Bxd5 exd5 12.Qb3 Bg4
13.Qxd5 Bxf3 14.Qxf3 Qxd4 15.Be3 Qh4 16.Nd5 Bd6 17.g3 Qh3
18.Rad1 Be5 19.b3 Rfe8 20.Bf4 Bxf4 21.Nxf4 Rxe1+ 22.Rxe1 Qd7
23.Qd5 Qxd5 24.Nxd5 Kf8 25.Kg2 Re8 26.Rxe8+ Kxe8 27.Kf3 Kd7
28.Ke4 Kd6 1/2-1/2

[Event "EU-chT (Men)"]
[Site "Hamburg"]
[Date "1965.??.??"]
[EventDate "?"]
[Round "4"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Karoly Honfi"]
[ECO "E60"]
[WhiteElo "?"]
[BlackElo "2390"]
[PlyCount "103"]

1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 c5 5.Bg2 cxd4 6.Nxd4 O-O 7.O-O
Nc6 8.Nc3 Ng4 9.e3 Nge5 10.b3 d6 11.Bb2 Bg4 12.f3 Bd7 13.Qd2
a5 14.Ndb5 Nb4 15.Rad1 a4 16.Nxa4 Nxc4 17.bxc4 Rxa4 18.Bxg7
Kxg7 19.Qb2+ Kg8 20.Nc3 Qb6 21.Nxa4 Bxa4 22.Rb1 Qxe3+ 23.Qf2
Qc3 24.Rfc1 Qa3 25.Re1 Nc2 26.Rxe7 Qxa2 27.Rexb7 Qxc4 28.Rb8
Rxb8 29.Rxb8+ Kg7 30.h4 Nd4 31.Qb2 Qc1+ 32.Qxc1 Ne2+ 33.Kf2
Nxc1 34.Bf1 Na2 35.Rd8 Bb3 36.Rxd6 h5 37.Rd4 Be6 38.Bc4 Nc3
39.Bxe6 fxe6 40.Ke3 Kf6 41.Rc4 Nd5+ 42.Ke4 Ne7 43.g4 hxg4
44.fxg4 g5 45.h5 Ng8 46.Rc8 Nh6 47.Kf3 Kg7 48.Rc7+ Kf6 49.Rh7
Nf7 50.Ke4 Nd6+ 51.Ke3 Nf7 52.Kd4 1-0

[Event "China vs USSR Match"]
[Site "Hangzhou, China"]
[Date "1965.??.??"]
[EventDate "?"]
[Round "3"]
[Result "1-0"]
[White "Liu Wenzhe"]
[Black "Nikolai V Krogius"]
[ECO "C54"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "79"]

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d4 exd4 6.cxd4 Bb4+
7.Bd2 Bxd2+ 8.Nbxd2 d5 9.exd5 Nxd5 10.Qb3 O-O 11.Bxd5 Na5
12.Bxf7+ Rxf7 13.Qc3 Re7+ 14.Ne5 Nc6 15.N2f3 Nxd4 16.Qc4+ Ne6
17.O-O Kh8 18.Rad1 Qe8 19.Qh4 Kg8 20.Qc4 Kh8 21.Rfe1 Nf8
22.Ng5 Be6 23.Nxe6 Nxe6 24.Rd3 b5 25.Qh4 Kg8 26.Nc6 Rf7 27.Qe4
Rf6 28.Qd5 Qf7 29.Ne7+ Qxe7 30.Qxa8+ Kf7 31.Qd5 a6 32.Rf3 c5
33.Rxf6+ Qxf6 34.Qb7+ Qe7 35.Qxa6 Qd7 36.Qb6 Nf4 37.Qxc5 Qg4
38.Qc7+ Kg6 39.Qc6+ Kh5 40.Qf3 1-0

[Event "Le Havre"]
[Site "Le Havre"]
[Date "1966.04.02"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Bent Larsen"]
[Black "Nikolai V Krogius"]
[ECO "D79"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "125"]

1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.c4 c6 5.d4 d5 6.cxd5 cxd5 7.Nc3
O-O 8.Ne5 Nc6 9.O-O e6 10.Nxc6 bxc6 11.Na4 Nd7 12.Bf4 Ba6
13.Qd2 Re8 14.Rac1 Bb5 15.Nc3 Ba6 16.Rfd1 Rc8 17.Bh6 Bf6 18.h4
e5 19.dxe5 Bxe5 20.Bh3 Rc7 21.Bf4 Nb6 22.b3 Qf6 23.a4 Bc8
24.Bg2 Bxf4 25.Qxf4 Qxf4 26.gxf4 Rce7 27.e3 Bg4 28.Rd2 Rb8
29.Ne2 Bxe2 30.Rxe2 Re6 31.Rec2 d4 32.exd4 Nd5 33.f5 gxf5
34.Rxc6 Rxc6 35.Rxc6 Nf4 36.Bf1 Rxb3 37.Bc4 Rb7 38.d5 Rd7
39.d6 Ne6 40.Kg2 Kf8 41.Kg3 Nd8 42.Ra6 Rb7 43.Bd5 Rb4 44.Rxa7
Rd4 45.Ra5 Kg7 46.Kf3 Ne6 47.Ke3 f4+ 48.Kf3 Kf6 49.Be4 h6
50.Rf5+ Kg7 51.Bd5 Kg6 52.Bxe6 fxe6 53.Rxf4 Rxd6 54.Ke4 Rd2
55.Ke5 Re2+ 56.Re4 Rxf2 57.Kxe6 Rd2 58.a5 Ra2 59.Re5 Ra1
60.Kd7 Kf6 61.Re6+ Kf7 62.a6 h5 63.Rc6 1-0

[Event "Sochi"]
[Site "Sochi"]
[Date "1966.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Viktor Korchnoi"]
[ECO "D50"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "118"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 h6 6. Bxf6 Bxf6
7. Nf3 O-O 8. Qd2 b6 9. cxd5 exd5 10. b4 Be6 11. Be2 Be7
12. Rb1 a5 13. b5 Nd7 14. O-O Bd6 15. Ne1 Nf6 16. Bd3 Re8
17. f3 Nh5 18. g4 Nf6 19. Ng2 Rc8 20. Ne2 Bd7 21. Ng3 Bb4
22. Qb2 c6 23. bxc6 Rxc6 24. a3 Bf8 25. h3 Qc7 26. Ne2 b5
27. Qa2 b4 28. axb4 Bxb4 29. e4 dxe4 30. fxe4 Rc3 31. Nxc3
Qxc3 32. Qc4 Qxc4 33. Bxc4 Rxe4 34. Rf4 Re7 35. Nh4 Re3
36. Rf3 Re4 37. Nf5 Bxf5 38. Rxf5 Rxd4 39. Rc1 Bd2 40. Rc2 a4
41. Ba2 Rd8 42. Kg2 Be3 43. Re5 Bg5 44. Ra5 g6 45. Rxa4 Rd7
46. Rac4 h5 47. Rc5 Be3 48. Rc7 hxg4 49. hxg4 Bg5 50. Rxd7
Nxd7 51. Re2 Kf8 52. Kf3 Bh6 53. Bc4 f6 54. Ke4 Ne5 55. Be6
Kg7 56. Rh2 Nxg4 57. Bxg4 f5+ 58. Bxf5 gxf5+ 59. Kxf5 Be3
1/2-1/2

[Event "URS-ch34 Tbilisi ,URS-ch"]
[Site "URS-ch34 Tbilisi ,URS-ch"]
[Date "1966.??.??"]
[EventDate "?"]
[Round "14"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Viktor Korchnoi"]
[ECO "D42"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "79"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6
7. Bd3 cxd4 8. exd4 Be7 9. O-O O-O 10. Re1 Qa5 11. Bd2 Rd8
12. Ne5 Nf6 13. Ne4 Qc7 14. Rc1 Rxd4 15. Nxc6 bxc6 16. Bc3 Rd5
17. Nxf6+ Bxf6 18. Bxf6 gxf6 19. Qg4+ Rg5 20. Qh4 h5 21. f4
Qb6+ 22. Kh1 Rg7 23. Qxf6 Bb7 24. Be4 c5 25. Rcd1 Bxe4
26. Rxe4 Rg6 27. Qc3 Rd8 28. Rd2 Rxd2 29. Qxd2 Qa6 30. h3 Qxa2
31. Re5 Qc4 32. Rxh5 Qd4 33. Qc2 c4 34. Qe2 Qxf4 35. Rc5 Qc1+
36. Kh2 Qf4+ 37. Kh1 Qc1+ 38. Kh2 Qf4+ 39. Kh1 Qc1+ 40. Kh2
1/2-1/2

[Event "Sochi"]
[Site "Sochi"]
[Date "1966.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Lev Polugaevsky"]
[ECO "A56"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "106"]

1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O
7. Bh3 Bxh3 8. Nxh3 Qc8 9. Ng5 h6 10. Nf3 Nh7 11. Qd3 Na6
12. a3 Nc7 13. Be3 Qh3 14. Nd2 Bg5 15. Qf1 Qd7 16. Bxg5 Nxg5
17. f4 Nh7 18. Qe2 Rae8 19. f5 Rb8 20. a4 a6 21. a5 b5
22. axb6 Rxb6 23. b3 Qe7 24. h4 Rfb8 25. Kd1 Ne8 26. Kc2 Qb7
27. Ra3 Qe7 28. g4 f6 29. Na4 Rb4 30. Nb2 Qb7 31. Nd3 Rb6
32. Nc1 Rb4 33. Qe3 Nc7 34. Rh3 Ra8 35. Na2 Rb6 36. Ra5 Rb8
37. Rg3 Ne8 38. Ra3 Ra8 39. Nf3 a5 40. Nc3 Rb8 41. Nd2 Ra8
42. Rg1 Nc7 43. Rga1 Qa6 44. Na4 Rb4 45. Nb2 Rb7 46. Nf3 Ne8
47. Qd2 Qb6 48. Qc3 Rba7 49. Na4 Qd8 50. Nb2 Nf8 51. Nd3 g5
52. fxg6 Nxg6 53. Ra4 Ng7 1/2-1/2

[Event "Tbilisi ch-SU"]
[Site "Tbilisi ch-SU"]
[Date "1966.??.??"]
[EventDate "?"]
[Round "5"]
[Result "1/2-1/2"]
[White "Lev Polugaevsky"]
[Black "Nikolai V Krogius"]
[ECO "A05"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "52"]

1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 c6 6. O-O a5
7. a3 axb4 8. axb4 Rxa1 9. Bxa1 Qb6 10. c3 d6 11. Na3 e5
12. d3 Re8 13. Qb3 Bg4 14. Nc4 Qc7 15. Ne3 Bxf3 16. Bxf3 e4
17. Bg2 exd3 18. exd3 Nbd7 19. c4 h5 20. d4 Ng4 21. Nc2 Nb6
22. h3 Nf6 23. Ne3 Ne4 24. Rd1 Nd7 25. Qd3 Ndf6 26. Re1 d5
1/2-1/2

[Event "Memorial M.Chigorin"]
[Site "Sochi (Russia)"]
[Date "1966.??.??"]
[EventDate "?"]
[Round "11"]
[Result "1/2-1/2"]
[White "Boris Spassky"]
[Black "Nikolai V Krogius"]
[ECO "C95"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "62"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5
7. Bb3 O-O 8. c3 d6 9. h3 Nb8 10. d4 Nbd7 11. Nbd2 Bb7 12. Bc2
Re8 13. Nf1 Bf8 14. Ng3 g6 15. Bg5 h6 16. Bd2 Bg7 17. Rc1 c5
18. d5 Nb6 19. Bd3 Bc8 20. Nh2 Qe7 21. Rf1 Ra7 22. Be3 Rb7
23. Qd2 Kh7 24. Rce1 Nbd7 25. a4 c4 26. Bc2 Rc7 27. axb5 axb5
28. Ra1 Nc5 29. f3 Nfd7 30. Ng4 Qf8 31. Nf2 h5 1/2-1/2

[Event "Ch URS"]
[Site "Tbilisi (Georgia)"]
[Date "1966.??.??"]
[EventDate "?"]
[Round "1"]
[Result "1-0"]
[White "Leonid Stein"]
[Black "Nikolai V Krogius"]
[ECO "D41"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "69"]

1.c4 e6 2.Nc3 d5 3.d4 Nf6 4.cxd5 Nxd5 5.Nf3 c5 6.e3 Nc6 7.Bc4
cxd4 8.exd4 Be7 9.O-O O-O 10.Re1 a6 11.a4 Nf6 12.Bg5 Bd7
13.Qe2 Rc8 14.Rad1 Nd5 15.Bxd5 Bxg5 16.Be4 Bf6 17.d5 exd5
18.Nxd5 Be6 19.Nf4 Qb6 20.Nxe6 fxe6 21.Qd3 h6 22.Qd6 Rce8
23.Bc2 Qb4 24.Qd3 Rd8 25.Qh7+ Kf7 26.Qg6+ Kg8 27.Rxd8 Nxd8
28.Rd1 Qxb2 29.h4 Nc6 30.Rb1 Qa3 31.Rxb7 Be7 32.Qxe6+ Kh8
33.Qxc6 Qc1+ 34.Kh2 Qf4+ 35.Kh3 1-0

[Event "Tbilisi"]
[Site "Tbilisi"]
[Date "1966.??.??"]
[EventDate "?"]
[Round "3"]
[Result "0-1"]
[White "Mark Taimanov"]
[Black "Nikolai V Krogius"]
[ECO "E46"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "84"]

1.c4 e6 2.Nc3 Nf6 3.d4 Bb4 4.e3 O-O 5.Ne2 d5 6.a3 Bd6 7.c5 Be7
8.b4 b6 9.Nf4 a5 10.Bb2 bxc5 11.bxc5 Ba6 12.Bxa6 Rxa6 13.O-O
Nc6 14.Rb1 Qd7 15.Nd3 Raa8 16.Ne5 Nxe5 17.dxe5 Ne8 18.e4 c6
19.Na4 Rb8 20.Bc3 Nc7 21.Rxb8 Rxb8 22.Bxa5 Nb5 23.Bb4 d4
24.Nb6 Qa7 25.Qd3 Rd8 26.h3 h6 27.Kh1 Nc7 28.Rd1 Na6 29.Qc4 d3
30.f4 d2 31.Qc2 Nxb4 32.axb4 Qa3 33.Rxd2 Qxb4 34.Rxd8+ Bxd8
35.Qd1 Be7 36.Nd7 Qxe4 37.Nb8 Bxc5 38.Nd7 Be3 39.Qa1 c5 40.Qb2
Qb4 41.Qa1 Qb7 42.Nb6 Bd4 0-1

[Event "Sochi Chigorin mem 04th"]
[Site "Sochi"]
[Date "1966.??.??"]
[EventDate "?"]
[Round "3"]
[Result "1/2-1/2"]
[White "Vladimir Antoshin"]
[Black "Nikolai V Krogius"]
[ECO "C85"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "33"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Bxc6 dxc6
7.Nc3 Bg4 8.h3 Bh5 9.g4 Bg6 10.Nxe5 Nxe4 11.Nxg6 Nxc3 12.dxc3
Qxd1 13.Rxd1 hxg6 14.Kg2 Rd8 15.Bf4 Bd6 16.Bg3 Bxg3 17.Kxg3
1/2-1/2

[Event "Sochi Chigorin mem 04th"]
[Site "Sochi"]
[Date "1966.??.??"]
[EventDate "?"]
[Round "15"]
[Result "1/2-1/2"]
[White "Milan Matulovic"]
[Black "Nikolai V Krogius"]
[ECO "B19"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "43"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.h4 h6 7.Nf3
Nd7 8.Bd3 Bxd3 9.Qxd3 Qc7 10.Bd2 Ngf6 11.O-O-O e6 12.c4 Bd6
13.Ne4 Bf4 14.Nxf6+ Nxf6 15.Bxf4 Qxf4+ 16.Qd2 Qxd2+ 17.Rxd2
Ke7 18.Rhd1 Rhd8 19.Ne5 Nd7 20.Nxd7 Rxd7 21.Kc2 Rad8 22.Kc3
1/2-1/2

[Event "URS-chT"]
[Site "Moscow"]
[Date "1966.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "G Borisenko"]
[ECO "D38"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "79"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 Bb4 5.g3 dxc4 6.Bg2 c5 7.O-O
Nc6 8.dxc5 Qa5 9.Bg5 Bxc3 10.bxc3 Qxc5 11.Bxf6 gxf6 12.Nd2 O-O
13.Ne4 Qe7 14.Qa4 Ne5 15.Rad1 Kg7 16.Nd6 Rd8 17.Qb4 Rd7 18.f4
Nc6 19.Qc5 Rc7 20.Bxc6 bxc6 21.e4 Rb8 22.e5 f5 23.Rb1 Ra8
24.Rb2 Qd8 25.Rfb1 Bd7 26.Rb7 Rxb7 27.Rxb7 a6 28.Qxc4 a5
29.Qd4 Be8 30.Qb6 Qxb6+ 31.Rxb6 c5 32.Rb7 Kg6 33.Kf2 Bc6
34.Rc7 Be4 35.Rxc5 Bb1 36.a3 a4 37.Rc7 f6 38.exf6 Kxf6 39.Nc4
h5 40.Ne5 1-0

[Event "Le Havre"]
[Site "Le Havre"]
[Date "1966.04.02"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Milko Bobotsov"]
[Black "Nikolai V Krogius"]
[ECO "D40"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "34"]

1.c4 e6 2.Nc3 Nf6 3.Nf3 d5 4.d4 c5 5.e3 Nc6 6.a3 a6 7.dxc5
dxc4 8.Qxd8+ Kxd8 9.Bxc4 Bxc5 10.b4 Ba7 11.Bb2 b5 12.Bb3 Bb7
13.Ke2 Ke7 14.Rhd1 Rhd8 15.h3 Rxd1 16.Rxd1 Rd8 17.Rxd8 Nxd8
1/2-1/2

[Event "Sochi Chigorin mem 04th"]
[Site "Sochi"]
[Date "1966.??.??"]
[EventDate "?"]
[Round "4"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Milko Bobotsov"]
[ECO "E63"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "62"]

1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 O-O 5.Bg2 d6 6.O-O Nc6 7.Nc3
a6 8.h3 Bd7 9.e4 e5 10.d5 Ne7 11.c5 Ne8 12.Be3 f5 13.Qd2 Nf6
14.Ng5 Nh5 15.exf5 Nxf5 16.Ne6 Bxe6 17.dxe6 Nxe3 18.Qxe3 c6
19.cxd6 Qxd6 20.Qb6 e4 21.Nxe4 Qxe6 22.Qxb7 Rab8 23.Qxa6 Rxb2
24.Ng5 Qf5 25.Qc4+ Kh8 26.Ne6 Rc2 27.Nxg7 Nxg7 28.Qe4 Qc5
29.Qe3 Rfxf2 30.Qxf2 Rxf2 31.Rxf2 Nf5 1/2-1/2

[Event "URS-ch34"]
[Site "Tbilisi"]
[Date "1966.??.??"]
[EventDate "?"]
[Round "7"]
[Result "1/2-1/2"]
[White "Vladimir A Savon"]
[Black "Nikolai V Krogius"]
[ECO "D50"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "51"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.Nc3 c5 5.Bg5 cxd4 6.Nxd4 e5 7.Ndb5
a6 8.Qa4 Bd7 9.cxd5 Qb6 10.Be3 Bxb5 11.Bxb6 Bxa4 12.Nxa4 Bb4+
13.Kd1 Nbd7 14.a3 Nxd5 15.axb4 N7xb6 16.e4 Nxa4 17.Rxa4 Nc7
18.b5 O-O-O+ 19.Kc1 axb5 20.Rb4 Rd6 21.Bxb5 Rhd8 22.Be2 Rc6+
23.Rc4 Rd4 24.Rxc6 bxc6 25.f3 Ne6 26.Kc2 1/2-1/2

[Event "Sochi Chigorin mem 04th"]
[Site "Sochi"]
[Date "1966.??.??"]
[EventDate "?"]
[Round "8"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Boris T Vladimirov"]
[ECO "A31"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "40"]

1.d4 Nf6 2.c4 c5 3.Nf3 cxd4 4.Nxd4 Nc6 5.g3 Qb6 6.Nb3 Ne4
7.Be3 Qb4+ 8.N1d2 Nxd2 9.Bxd2 Qxc4 10.Bg2 e6 11.O-O Be7 12.Rc1
Qa4 13.Nc5 Qb5 14.b4 a5 15.a4 Qb6 16.bxa5 Nxa5 17.Bxa5 Qxa5
18.Bxb7 Rb8 19.Bxc8 Bxc5 20.Qxd7+ Kf8 1-0

[Event "URS-ch34"]
[Site "Tbilisi"]
[Date "1966.??.??"]
[EventDate "?"]
[Round "6"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Ratmir Kholmov"]
[ECO "E18"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "33"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3
Ne4 8.Nxe4 Bxe4 9.Ne1 Bxg2 10.Nxg2 d5 11.Qa4 dxc4 12.Qxc4 c5
13.Be3 Nd7 14.Rfd1 Qc8 15.Rac1 Qb7 16.dxc5 Nxc5 17.b4 1/2-1/2

[Event "URS-ch34"]
[Site "Tbilisi"]
[Date "1966.??.??"]
[EventDate "?"]
[Round "20"]
[Result "1-0"]
[White "Evgeni Vasiukov"]
[Black "Nikolai V Krogius"]
[ECO "C88"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "83"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3
O-O 8.a4 Bb7 9.d3 d6 10.Bd2 Nd7 11.Nc3 Nc5 12.Bd5 b4 13.Ne2
Rb8 14.Ng3 Bf6 15.Nh5 Ne6 16.a5 Ned4 17.Bc4 Bc8 18.c3 Ne6
19.Be3 bxc3 20.bxc3 g6 21.Nxf6+ Qxf6 22.Bh6 Re8 23.h4 Na7
24.Qd2 Nb5 25.Re3 c6 26.g3 Qd8 27.d4 exd4 28.cxd4 d5 29.exd5
cxd5 30.Ba2 Bb7 31.Rae1 Nd6 32.Ng5 Nc4 33.Bxc4 dxc4 34.Re5 Qd7
35.d5 Ng7 36.Ne4 Nh5 37.Rxh5 Rxe4 38.Rxe4 f5 39.Re5 Qd6 40.Qd4
gxh5 41.Re8+ Kf7 42.Rxb8 1-0

[Event "URS-ch34"]
[Site "Tbilisi"]
[Date "1966.??.??"]
[EventDate "?"]
[Round "21"]
[Result "0-1"]
[White "Nikolai V Krogius"]
[Black "Viacheslav Osnos"]
[ECO "A39"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "102"]

1.c4 c5 2.Nc3 Nc6 3.Nf3 g6 4.g3 Bg7 5.Bg2 Nf6 6.O-O O-O 7.d4
cxd4 8.Nxd4 Nxd4 9.Qxd4 d6 10.Qd3 Qa5 11.h3 Be6 12.Bd2 Qa6
13.b3 Rad8 14.e4 b6 15.Rac1 Rfe8 16.Rfd1 Bd7 17.Kh2 Qc8 18.Be3
Bc6 19.Bd4 Bh6 20.Rc2 Nd7 21.Nd5 Bg7 22.Bxg7 Kxg7 23.f4 f6
24.h4 Qb7 25.Qe3 a5 26.Rf2 Bxd5 27.Rxd5 Qc7 28.Bh3 e6 29.Rd1
Nc5 30.Bg2 d5 31.cxd5 exd5 32.e5 fxe5 33.f5 gxf5 34.Rxf5 d4
35.Qg5+ Kh8 36.Qf6+ Qg7 37.Qxb6 Rg8 38.Rg5 Qe7 39.Rxg8+ Rxg8
40.Qxa5 Qg7 41.Qe1 e4 42.b4 Nd3 43.Rxd3 exd3 44.b5 d2 45.Qxd2
Qxg3+ 46.Kg1 Qe3+ 47.Qf2 Rf8 48.Qxe3 dxe3 49.Bf1 Rg8+ 50.Kh2
Ra8 51.Bd3 e2 0-1

[Event "URS-ch34"]
[Site "Tbilisi"]
[Date "1966.??.??"]
[EventDate "?"]
[Round "9"]
[Result "1/2-1/2"]
[White "Iivo Nei"]
[Black "Nikolai V Krogius"]
[ECO "D32"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "66"]

1.c4 c5 2.Nc3 Nc6 3.Nf3 Nf6 4.e3 e6 5.d4 d5 6.cxd5 exd5 7.Be2
cxd4 8.Nxd4 Bd6 9.O-O O-O 10.Nf3 Be6 11.Nb5 Bb8 12.b3 a6
13.Nbd4 Qd6 14.Nxc6 bxc6 15.Bb2 Ne4 16.Be5 Qe7 17.Rc1 c5
18.Bxb8 Rfxb8 19.Nd2 f5 20.Nb1 a5 21.Nc3 Rd8 22.Qc2 Rac8
23.Ba6 Ra8 24.Bd3 Rac8 25.Ne2 Bf7 26.Qb2 c4 27.Bxe4 dxe4
28.Nd4 cxb3 29.axb3 Qd7 30.Rxc8 Rxc8 31.h3 h6 32.Rc1 Rxc1+
33.Qxc1 f4 1/2-1/2

[Event "34th USSR Championship"]
[Site "Tbilisi, Georgia"]
[Date "1966.??.??"]
[EventDate "?"]
[Round "2"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Yuri V Nikolaevsky"]
[ECO "D33"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "145"]

1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6 7.Bg2
Bg4 8.Ne5 Be6 9.Nxc6 bxc6 10.O-O cxd4 11.Qxd4 Be7 12.e4 O-O
13.exd5 Nxd5 14.Nxd5 Bxd5 15.Bxd5 Qxd5 16.Qxd5 cxd5 17.Rd1
Rfd8 18.Be3 Bf6 19.Bd4 Bxd4 20.Rxd4 g6 21.Rc1 Rd7 22.Kf1 Rb8
23.b3 Rb5 24.Ke2 Ra5 25.Rd2 h5 26.Kd3 Kg7 27.Rc6 Re7 28.Kc3
d4+ 29.Kd3 h4 30.Rc4 Rf5 31.Rxd4 h3 32.f4 Re1 33.Re2 Ra1
34.Ke3 Ra5 35.Rdd2 Ra3 36.Kf3 f5 37.g4 fxg4+ 38.Kxg4 Ra5
39.Kxh3 Kh6 40.Kg3 Rc5 41.Rc2 Rd5 42.Red2 Ra5 43.h3 Rf1 44.Rc7
Rg1+ 45.Kf2 Rb1 46.Rdd7 Rxa2+ 47.Kg3 Rxb3+ 48.Kh4 g5+ 49.fxg5+
Kg6 50.Rg7+ Kf5 51.Rcf7+ Ke5 52.Re7+ Kd5 53.Rd7+ Kc5 54.Rc7+
Kd5 55.Rgd7+ Ke5 56.Re7+ Kd5 57.Rcd7+ Kc5 58.Rxa7 Rh2 59.Kh5
Rhxh3+ 60.Kg6 Rb8 61.Kg7 Rg3 62.Ra5+ Kb4 63.Rf5 Rb6 64.Kf7 Kc4
65.Rf6 Rb1 66.g6 Rbg1 67.Kg7 Kd5 68.Kh7 Rh3+ 69.Kg8 Ra3 70.g7
Ra8+ 71.Kh7 Kd4 72.Rh6 Kc3 73.Ree6 1-0

[Event "34th USSR Championship"]
[Site "Tbilisi, Georgia"]
[Date "1966.??.??"]
[EventDate "?"]
[Round "4"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Vladimir Doroshkievich"]
[ECO "E63"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "56"]

1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 O-O 5.Bg2 d6 6.O-O Nc6 7.Nc3
a6 8.h3 Rb8 9.e4 Nd7 10.Be3 Na5 11.b3 c5 12.Rc1 b5 13.cxb5
axb5 14.dxc5 dxc5 15.e5 c4 16.Bf4 Rb6 17.Nd5 Ra6 18.Nb4 Re6
19.Nd4 Rxe5 20.Ndc6 Nxc6 21.Nxc6 Qe8 22.Nxe5 Nxe5 23.Bxe5 Bxe5
24.Qe2 Bd4 25.bxc4 Ba6 26.c5 e5 27.a4 e4 28.Rfd1 Bg7 1-0

[Event "34th USSR Championship"]
[Site "Tbilisi, Georgia"]
[Date "1966.??.??"]
[EventDate "?"]
[Round "8"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Eduard Gufeld"]
[ECO "E62"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "37"]

1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 O-O 5.Bg2 d6 6.O-O Nc6 7.Nc3
Bf5 8.b3 Ne4 9.Bb2 Nxc3 10.Bxc3 Be4 11.Qd2 e5 12.d5 Ne7 13.Ne1
Bxg2 14.Nxg2 Qd7 15.e4 f5 16.exf5 gxf5 17.f4 Ng6 18.Rae1 Rae8
19.a4 1/2-1/2

[Event "34th USSR Championship"]
[Site "Tbilisi, Georgia"]
[Date "1966.??.??"]
[EventDate "?"]
[Round "12"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Bukhuti Gurgenidze"]
[ECO "A41"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "134"]

1.Nf3 d6 2.d4 Bg4 3.c4 Nd7 4.Nc3 e5 5.e3 Ngf6 6.Be2 c6 7.O-O
Qc7 8.d5 Be7 9.Nd2 Bxe2 10.Qxe2 cxd5 11.cxd5 O-O 12.e4 Rfc8
13.a4 Nf8 14.Re1 Ng6 15.g3 a6 16.Nf1 Nd7 17.Be3 Qd8 18.h4 Qf8
19.Qg4 Nf6 20.Qf5 Bd8 21.Bg5 Ne7 22.Qh3 Ne8 23.Rec1 h6 24.Bxe7
Qxe7 25.Ne2 Rxc1 26.Rxc1 Nf6 27.Nd2 Bb6 28.Rc8+ Rxc8 29.Qxc8+
Kh7 30.b4 g6 31.Kg2 Kg7 32.f3 h5 33.Nc4 Qc7 34.Qxc7 Bxc7
35.Nc1 Kf8 36.Nb3 b6 37.Nc1 Nd7 38.Nd3 Ke7 39.f4 exf4 40.gxf4
Nf6 41.Kf3 Kd7 42.b5 axb5 43.axb5 Ng8 44.Nb4 Ne7 45.Nc6 f5
46.Ne3 fxe4+ 47.Kxe4 Bd8 48.f5 gxf5+ 49.Nxf5 Ng6 50.Ng7 Bxh4
51.Nxh5 Ne5 52.Nxe5+ dxe5 53.Kxe5 Be7 54.Ng7 Bd6+ 55.Ke4 Bh2
56.Nf5 Bc7 57.Ne3 Bh2 58.Nc4 Bc7 59.Kf5 Ke7 60.Kg5 Bd8 61.Kf4
Bc7+ 62.Kf5 Bh2 63.Ke4 Bc7 64.Kd4 Bh2 65.Kd3 Bc7 66.Ke4 Kd7
67.Kd4 Ke7 1/2-1/2

[Event "34th USSR Championship"]
[Site "Tbilisi, Georgia"]
[Date "1966.??.??"]
[EventDate "?"]
[Round "13"]
[Result "1/2-1/2"]
[White "Anatoly Lein"]
[Black "Nikolai V Krogius"]
[ECO "A14"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "77"]

1.c4 e6 2.g3 Nf6 3.Bg2 d5 4.Nf3 Be7 5.O-O O-O 6.b3 b6 7.Bb2
Bb7 8.e3 c5 9.Qe2 Nc6 10.Rd1 Qc7 11.Nc3 Rad8 12.Rac1 Qb8
13.cxd5 Nxd5 14.Nxd5 Rxd5 15.d4 cxd4 16.Nxd4 Nxd4 17.Bxd4 Rd7
18.Qg4 g6 19.Bxb7 Qxb7 20.Bb2 Rfd8 21.Rxd7 Qxd7 22.Qf4 Rc8
23.Rxc8+ Qxc8 24.Qa4 Qd8 25.Kg2 a6 26.e4 Qa8 27.Qd4 f6 28.g4
Kf7 29.h3 b5 30.g5 e5 31.Qd3 f5 32.f3 fxe4 33.fxe4 Qd8 34.Qxd8
Bxd8 35.h4 Ke6 36.Kf3 Ba5 37.Bc1 Be1 38.Kg4 Bf2 39.Ba3 1/2-1/2

[Event "34th USSR Championship"]
[Site "Tbilisi, Georgia"]
[Date "1966.??.??"]
[EventDate "?"]
[Round "17"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "V Liberzon"]
[ECO "E62"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "75"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.c4 Nc6 7.Nc3
e5 8.dxe5 Nxe5 9.Nxe5 dxe5 10.Qxd8 Rxd8 11.Bg5 Rd4 12.Nd5 Nxd5
13.cxd5 e4 14.Rfd1 Rxd1+ 15.Rxd1 Bxb2 16.Bxe4 Be5 17.f4 Bd6
18.Bf6 Bg4 19.Kf2 Re8 20.Bf3 Bf5 21.Rc1 Kf8 22.Bd4 a5 23.Bc5
Be4 24.Bxd6+ cxd6 25.Bxe4 Rxe4 26.Rb1 Ra4 27.Rxb7 Ke8 28.Rb2
Rd4 29.Rb8+ Ke7 30.Rb7+ Ke8 31.Ra7 Ra4 32.Kf3 Rxa2 33.g4 Ra1
34.e4 a4 35.e5 dxe5 36.fxe5 a3 37.e6 fxe6 38.dxe6 1/2-1/2

[Event "Tbilisi"]
[Site "Tbilisi"]
[Date "1967.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "David Bronstein"]
[ECO "B06"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "65"]

1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. f4 d5 5. e5 h5 6. Bd3 Nh6
7. Nf3 Bf5 8. O-O Nd7 9. Nh4 e6 10. Nxf5 Nxf5 11. Ne2 Bf8
12. c3 c5 13. Kh1 c4 14. Bc2 Qc7 15. Ng1 O-O-O 16. Nf3 Bh6
17. Qe1 Rde8 18. b4 Bg7 19. a4 f6 20. Kg1 Qd8 21. Ra2 h4
22. Bb1 fxe5 23. dxe5 Nb8 24. Be3 Nc6 25. Qf2 h3 26. g3 b6
27. a5 Kb7 28. Bxf5 gxf5 29. axb6 axb6 30. Rfa1 Qc7 31. Nd4
Ra8 32. Nb5 Rxa2 33. Qxa2 1-0

[Event "Tbilisi"]
[Site "Tbilisi"]
[Date "1967.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Efim Geller"]
[ECO "C47"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "18"]

1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4 exd4 5.Nxd4 Bb4 6.Nxc6 bxc6
7.Bd3 d5 8.exd5 Qe7+ 9.Qe2 Qxe2+ 1/2-1/2

[Event "Ch URS"]
[Site "Tbilisi (Georgia)"]
[Date "1967.??.??"]
[EventDate "?"]
[Round "11"]
[Result "1/2-1/2"]
[White "Aivars Gipslis"]
[Black "Nikolai V Krogius"]
[ECO "C09"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "45"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 exd5 5.Ngf3 Nc6 6.Bb5 Bd6
7.O-O Ne7 8.c4 O-O 9.dxc5 Bxc5 10.Nb3 Bd6 11.Bxc6 bxc6 12.c5
Bc7 13.Nbd4 h6 14.Re1 Bg4 15.h3 Bh5 16.Bd2 Qd7 17.Qa4 Bxf3
18.Nxf3 Ng6 19.Nd4 Rac8 20.Bc3 Be5 21.Re3 Rfe8 22.Rae1 f6
23.Qc2 1/2-1/2

[Event "Memorial M.Chigorin"]
[Site "11"]
[Date "1967.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Alexander Kotov"]
[Black "Nikolai V Krogius"]
[ECO "A15"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "95"]

1.c4 Nf6 2.Nf3 e6 3.b3 c5 4.Bb2 Be7 5.e3 O-O 6.d4 d5 7.Nbd2
Nc6 8.Bd3 cxd4 9.exd4 b6 10.O-O Ba6 11.Re1 Rc8 12.Rc1 Re8
13.Ne5 Nxe5 14.dxe5 Nd7 15.Re3 Bg5 16.Rh3 Bh6 17.Bb1 Nf8
18.Qe1 Bxd2 19.Qxd2 dxc4 20.Qe1 cxb3 21.Rd1 Qe7 22.Rxb3 Red8
23.Rxd8 Rxd8 24.Ba3 Qg5 25.Bd6 Rc8 26.Rc3 Rxc3 27.Qxc3 Qg4
28.f3 Qc4 29.Qxc4 Bxc4 30.Kf2 Nd7 31.Ke3 f6 32.f4 fxe5 33.fxe5
Bd5 34.g3 Nc5 35.Kd4 Nb7 36.a3 Kf7 37.Bc7 h6 38.Bd3 Na5 39.Bb5
Nb3+ 40.Ke3 Nc5 41.Bb8 a6 42.Be2 b5 43.Bh5+ g6 44.Bd1 a5
45.Kd4 Nb7 46.Kc3 Nd8 47.Bc7 Nc6 48.a4 1/2-1/2

[Event "Memorial M.Chigorin"]
[Site "Sochi (Russia)"]
[Date "1967.??.??"]
[EventDate "?"]
[Round "4"]
[Result "1/2-1/2"]
[White "Leonid Shamkovich"]
[Black "Nikolai V Krogius"]
[ECO "C11"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "30"]

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 dxe4 5.Nxe4 Be7 6.Bxf6 Bxf6
7.Nf3 Bd7 8.Qd2 Bc6 9.Nxf6+ Qxf6 10.Ne5 O-O 11.O-O-O Rd8 12.h4
Be8 13.Bc4 Nc6 14.Nxc6 Bxc6 15.f3 Bd5 1/2-1/2

[Event "Memorial M.Chigorin"]
[Site "Sochi (Russia)"]
[Date "1967.??.??"]
[EventDate "?"]
[Round "7"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Vladimir Simagin"]
[ECO "A14"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "73"]

1.c4 Nf6 2.Nf3 e6 3.g3 d5 4.Bg2 Be7 5.O-O O-O 6.d4 b6 7.cxd5
Nxd5 8.e4 Nf6 9.Nc3 Bb7 10.Ne5 Nbd7 11.Nc4 Ne8 12.Bf4 Bg5
13.Bxg5 Qxg5 14.Qa4 Qe7 15.Rfd1 a6 16.Qc2 Rd8 17.Rac1 Nb8
18.a3 Nd6 19.Ne3 c6 20.Qb3 Nb5 21.Nxb5 axb5 22.d5 g6 23.h4 e5
24.a4 b4 25.Nc4 cxd5 26.exd5 e4 27.d6 Qe6 28.Qxb4 Nd7 29.a5 f5
30.Nxb6 Ne5 31.d7 f4 32.Qd6 Qf5 33.Nc8 Rxd7 34.Qxd7 Nxd7
35.Ne7+ Kh8 36.Nxf5 gxf5 37.Rxd7 1-0

[Event "t, Moscow"]
[Site "t, Moscow"]
[Date "1967.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Nikolai V Krogius"]
[Black "Vasily Smyslov"]
[ECO "E11"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "86"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. g3 d6 6. Bg2 Nbd7
7. O-O e5 8. e3 Bxd2 9. Qxd2 c6 10. Nc3 e4 11. Nh4 Nb6
12. Nxe4 Nxe4 13. Bxe4 Nxc4 14. Qe2 d5 15. Bd3 Nd6 16. Qh5 Qe7
17. Rfe1 Be6 18. Rac1 g6 19. Qd1 O-O 20. Qc2 Rfc8 21. Ng2 Bf5
22. Nf4 Bxd3 23. Nxd3 Re8 24. Nf4 Qf6 25. Rf1 Re7 26. Rce1
Rae8 27. b3 Ne4 28. f3 Nd6 29. Ng2 Nf5 30. Qd2 b6 31. Qf2 Qg5
32. g4 Nxe3 33. h4 Nxg2 34. hxg5 Nxe1 35. Qg3 Re3 36. Qf4 c5
37. Kh1 Re2 38. dxc5 bxc5 39. Qd6 d4 40. Qxc5 d3 41. Qd5 d2
42. Qd7 Nxf3 43. Rxf3 d1=Q+ 0-1

[Event "18, Tbilisi URS ch"]
[Site "18, Tbilisi URS ch"]
[Date "1967.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Vasily Smyslov"]
[Black "Nikolai V Krogius"]
[ECO "A14"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "78"]

1. c4 e6 2. g3 Nf6 3. Bg2 d5 4. Nf3 Be7 5. O-O O-O 6. Qc2 dxc4
7. Na3 c5 8. Nxc4 Nc6 9. b3 Bd7 10. Bb2 Rc8 11. Rac1 Qc7
12. Nce5 h6 13. d4 Nb4 14. Qb1 Bb5 15. a3 Nbd5 16. dxc5 Bxe2
17. Rfe1 Bxf3 18. Bxf3 Qd8 19. b4 a5 20. Nc4 axb4 21. axb4 Ra8
22. Red1 Ra4 23. Bxf6 Bxf6 24. Bxd5 exd5 25. Qb3 Ra7 26. Nd6
d4 27. b5 Qd7 28. Qd5 Rb8 29. Ra1 Rxa1 30. Rxa1 b6 31. Ra8
Rxa8 32. Qxa8+ Bd8 33. Nb7 d3 34. c6 Qe7 35. Nxd8 Qe1+ 36. Kg2
d2 37. Ne6+ Kh7 38. Nf8+ Kg8 39. Ng6+ Kh7 1/2-1/2

[Event "Leningrad"]
[Site "Leningrad"]
[Date "1967.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Boris Spassky"]
[Black "Nikolai V Krogius"]
[ECO "C95"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "65"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5
7. Bb3 O-O 8. c3 d6 9. h3 Nb8 10. d4 Nbd7 11. Nbd2 Bb7 12. Bc2
Re8 13. Nf1 Bf8 14. Ng3 g6 15. Bd2 Bg7 16. Qc1 d5 17. Bg5 Qc8
18. Nxe5 Nxe5 19. dxe5 Nxe4 20. Bxe4 dxe4 21. Bf6 Bxf6
22. exf6 Qd8 23. Qg5 h6 24. Qh4 Re6 25. Nxe4 Bxe4 26. Rxe4
Qxf6 27. Qxf6 Rxf6 28. Rd1 c5 29. Rd7 Rb8 30. f3 Rbb6 31. Kf2
Rbd6 32. Ree7 c4 33. Rxf7 1-0

[Event "Memorial M.Chigorin"]
[Site "Sochi (Russia)"]
[Date "1967.??.??"]
[EventDate "?"]
[Round "8"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Boris Spassky"]
[ECO "D13"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "32"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. cxd5 cxd5 5. Nc3 Nc6 6. Bf4 e6
7. e3 Bd6 8. Bxd6 Qxd6 9. Bd3 O-O 10. O-O Bd7 11. Rc1 Rac8
12. Qe2 Rfd8 13. a3 Be8 14. h3 a6 15. Rfd1 Rc7 16. Nb1 Rdc8
1/2-1/2

[Event "Ch URS"]
[Site "Tbilisi (Georgia)"]
[Date "1967.??.??"]
[EventDate "?"]
[Round "15"]
[Result "0-1"]
[White "Alexey Suetin"]
[Black "Nikolai V Krogius"]
[ECO "B64"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "72"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2
Be7 8.O-O-O O-O 9.f4 h6 10.Bh4 e5 11.Nf5 Bxf5 12.exf5 Qa5
13.g4 exf4 14.Qxf4 d5 15.Kb1 d4 16.Bxf6 Bxf6 17.Ne4 Be5 18.Qf3
Nb4 19.a3 Nd5 20.Bc4 Ne3 21.Bb3 Nxd1 22.Rxd1 d3 23.c3 Qb6
24.Ka2 Bf6 25.Rxd3 Rad8 26.Re3 Rfe8 27.Qe2 Qc6 28.Qe1 Rb8
29.Bc2 Qd5+ 30.Bb3 Qc6 31.Kb1 Bh4 32.Qxh4 Rxe4 33.Rd3 Qb5
34.Qg3 Qxb3 35.Qxb8+ Kh7 36.Qg3 Re2 0-1

[Event "Memorial M.Chigorin"]
[Site "Sochi (Russia)"]
[Date "1967.??.??"]
[EventDate "?"]
[Round "12"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Alexander Zaitsev"]
[ECO "D57"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "37"]

1.c4 e6 2.Nc3 d5 3.d4 Be7 4.Nf3 Nf6 5.Bg5 O-O 6.e3 h6 7.Bh4
Ne4 8.Bxe7 Qxe7 9.cxd5 Nxc3 10.bxc3 exd5 11.Qb3 c6 12.c4 Be6
13.Ne5 Nd7 14.Nxd7 Qxd7 15.Be2 b6 16.O-O Rac8 17.Rfd1 c5
18.cxd5 Bxd5 19.dxc5 1/2-1/2

[Event "Sochi"]
[Site "Sochi"]
[Date "1967.??.??"]
[EventDate "?"]
[Round "5"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Vladimir Antoshin"]
[ECO "E15"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "85"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6 5.b3 Bb4+ 6.Bd2 Be7 7.Bg2
O-O 8.O-O c6 9.Bc3 d5 10.Nbd2 Nbd7 11.Rc1 Rc8 12.Re1 c5 13.Bb2
b5 14.cxd5 Nxd5 15.dxc5 Nxc5 16.Ne5 f6 17.Nd3 Nxd3 18.exd3 Nb4
19.Qg4 Rxc1 20.Qxe6+ Kh8 21.Bxc1 Bc5 22.Ba3 Bxf2+ 23.Kxf2
Nxd3+ 24.Kg1 b4 25.Re3 bxa3 26.Qxa6 Nb4 27.Qe2 Nxa2 28.b4 Nc1
29.Qe1 Nd3 30.Qe2 a2 31.Nb3 Nc1 32.Qb2 Qd1+ 33.Kf2 Nxb3
34.Qxa2 Nd4 35.Re1 Qd3 36.Qxa7 Qd2+ 37.Kf1 Nc2 38.Re2 Qd1+
39.Kf2 Nxb4 40.Be4 f5 41.Qe7 Qd8 42.Qxd8 Rxd8 43.Bxf5 1/2-1/2

[Event "USSR"]
[Site "USSR"]
[Date "1967.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "A Elizarov"]
[ECO "A88"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "49"]

1. Nf3 f5 2. g3 Nf6 3. Bg2 d6 4. d4 g6 5. O-O Bg7 6. c4 O-O
7. Nc3 c6 8. d5 e5 9. dxe6 Bxe6 10. b3 Ne4 11. Nxe4 Bxa1
12. Nxd6 Bg7 13. Nxb7 Qxd1 14. Rxd1 Na6 15. Ng5 Bc8 16. Nd8
Bd7 17. Nxc6 Bxc6 18. Bxc6 Rab8 19. Bd5+ Kh8 20. Nf7+ Kg8
21. Ne5+ Kh8 22. Nd7 Nb4 23. Nxf8 Rxf8 24. Be3 Nxa2 25. Bxa7
1-0

[Event "Sochi"]
[Site "Sochi"]
[Date "1967.??.??"]
[EventDate "?"]
[Round "15"]
[Result "0-1"]
[White "Maximilian Ujtelky"]
[Black "Nikolai V Krogius"]
[ECO "A15"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "62"]

1.c4 Nf6 2.g3 c6 3.Bg2 d5 4.Nf3 dxc4 5.Qc2 g6 6.Qxc4 Bg7 7.O-O
O-O 8.d3 Nbd7 9.Nbd2 a5 10.Qc2 Nd5 11.a3 a4 12.d4 N7b6 13.Rd1
Nc7 14.Ne4 Bf5 15.Nh4 Nb5 16.e3 Bg4 17.Re1 Nd7 18.Bd2 e5
19.Bb4 exd4 20.Bxf8 Qxf8 21.h3 Be6 22.Nf3 d3 23.Qd2 Nb6
24.Rac1 Nc4 25.Qxd3 Nxb2 26.Qe2 Qxa3 27.Bf1 Bd5 28.Qc2 Qb4
29.Nfd2 a3 30.g4 a2 31.g5 Bxe4 0-1

[Event "URS-chT"]
[Site "Moscow USSR"]
[Date "1967.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Eduard Gufeld"]
[Black "Nikolai V Krogius"]
[ECO "C18"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "73"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Qc7 7.Nf3
Ne7 8.a4 b6 9.Bb5+ Bd7 10.Bd3 Nbc6 11.O-O h6 12.Re1 Na5 13.Nd2
O-O 14.Qg4 f5 15.exf6 Rxf6 16.Nf3 Raf8 17.Ne5 Nac6 18.Nxd7
Qxd7 19.Ba3 c4 20.Bf1 R8f7 21.Re2 Nf5 22.g3 Kh7 23.f4 Rg6
24.Qh5 Nce7 25.a5 Ng8 26.axb6 axb6 27.Rae1 Nf6 28.Qf3 Nh4
29.Qh1 Nh5 30.Bg2 Nxf4 31.gxf4 Rxf4 32.Rf1 Rfg4 33.Rff2 Qa4
34.Be7 Rxg2+ 35.Qxg2 Nxg2 36.Rxg2 Qa1+ 37.Kf2 0-1

[Event "Sarajevo"]
[Site "11"]
[Date "1968.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Borislav Ivkov"]
[ECO "C09"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "30"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 exd5 5.Ngf3 Nc6 6.Bb5 Bd6
7.O-O Ne7 8.dxc5 Bxc5 9.Nb3 Bb6 10.Be3 Bxe3 11.Bxc6+ bxc6
12.fxe3 Bg4 13.Qd4 Bxf3 14.Rxf3 O-O 15.Rd1 Ng6 1/2-1/2

[Event "Sarajevo"]
[Site "Sarajevo"]
[Date "1968.??.??"]
[EventDate "?"]
[Round "14"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Milan Matulovic"]
[ECO "D41"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "40"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c5 5.cxd5 Nxd5 6.g3 cxd4
7.Nxd5 Qxd5 8.Qxd4 Qb5 9.e4 Qb4+ 10.Bd2 Nc6 11.Qxb4 Bxb4
12.Rc1 Bxd2+ 13.Kxd2 Ke7 14.Ke3 Bd7 15.Be2 Rhd8 16.Rhd1 Be8
17.Rxd8 Rxd8 18.Rd1 Rxd1 19.Bxd1 e5 20.Ba4 f6 1/2-1/2

[Event "01, Polanica Zdroj"]
[Site "01, Polanica Zdroj"]
[Date "1969.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Vladimir Bagirov"]
[ECO "B13"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "35"]

1.e4 c6 2.d4 d5 3.exd5 cxd5 4.Bd3 Nc6 5.c3 Nf6 6.Nf3 Bg4 7.O-O
e6 8.Bf4 Bd6 9.Bxd6 Qxd6 10.Nbd2 O-O 11.Qe1 Bxf3 12.Nxf3 Qf4
13.Qc1 Qxc1 14.Raxc1 Rac8 15.Rfe1 Rc7 16.Kf1 Nd7 17.Ke2 Rfc8
18.Kd2 1/2-1/2

[Event "Varna"]
[Site "Varna"]
[Date "1969.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Vlastimil Hort"]
[ECO "D76"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "49"]

1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 O-O 5.Bg2 d5 6.cxd5 Nxd5 7.O-O
Nb6 8.Nc3 Nc6 9.d5 Na5 10.e4 c6 11.Bg5 h6 12.Bf4 cxd5 13.exd5
Nac4 14.Qe2 g5 15.Bc1 Bg4 16.h3 Bh5 17.g4 Bg6 18.h4 Qd7
19.hxg5 Qxg4 20.gxh6 Bf6 21.Re1 Rac8 22.Ne4 Qxe4 23.Qxe4 Bxe4
24.Rxe4 Nxd5 25.Nd2 1/2-1/2

[Event "Polanica Zdroj"]
[Site "11"]
[Date "1969.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Borislav Ivkov"]
[Black "Nikolai V Krogius"]
[ECO "C09"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "28"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 exd5 5.Ngf3 Nc6 6.Bb5 Bd6
7.O-O Ne7 8.dxc5 Bxc5 9.Nb3 Bb6 10.Be3 Bxe3 11.Bxc6+ bxc6
12.fxe3 O-O 13.Qd4 Qb6 14.Qc3 Rb8 1/2-1/2

[Event "Polanica Zdroj"]
[Site "02"]
[Date "1969.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Vlastimil Jansa"]
[Black "Nikolai V Krogius"]
[ECO "A14"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "22"]

1.Nf3 d5 2.c4 e6 3.g3 Nf6 4.Bg2 Be7 5.O-O O-O 6.b3 b6 7.Bb2
Bb7 8.e3 c5 9.Nc3 Nbd7 10.Qe2 Re8 11.d3 dxc4 1/2-1/2

[Event "Varna"]
[Site "Varna"]
[Date "1969.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Georgi P Tringov"]
[ECO "A39"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "67"]

1.Nf3 g6 2.d4 Bg7 3.g3 Nf6 4.Bg2 O-O 5.c4 c5 6.O-O cxd4 7.Nxd4
Nc6 8.Nc3 Nxd4 9.Qxd4 d6 10.Qd3 Bf5 11.e4 Be6 12.Bd2 a6 13.b3
Rb8 14.Rac1 Nd7 15.Qe2 Ne5 16.Rfd1 Bg4 17.f3 Bd7 18.Be3 Bc6
19.c5 Qa5 20.Nd5 Bxd5 21.Rxd5 Qa3 22.cxd6 exd6 23.Rcd1 Rbc8
24.f4 Nc6 25.Rxd6 Nb4 26.e5 b5 27.R6d2 Rfe8 28.Bh3 Rc7 29.Rd8
Rxd8 30.Rxd8+ Bf8 31.Qd2 Nc6 32.Re8 Kg7 33.f5 Nxe5 34.Rxe5 1-0

[Event "Varna"]
[Site "Varna"]
[Date "1969.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Milko Bobotsov"]
[ECO "E31"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "55"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Bg5 c5 5.d5 h6 6.Bh4 d6 7.e3
Bxc3+ 8.bxc3 e5 9.f4 exf4 10.exf4 Bf5 11.Bd3 Bxd3 12.Qxd3 O-O
13.Ne2 Nbd7 14.O-O Re8 15.Ng3 Qe7 16.Nf5 Qf8 17.Qh3 Re4 18.Rf3
Rae8 19.Bxf6 Nxf6 20.Rg3 g6 21.Nxh6+ Kg7 22.Nf5+ Kg8 23.Qh4
Re1+ 24.Rxe1 Rxe1+ 25.Kf2 Qe8 26.Ne3 Rb1 27.Qxf6 Qe4 28.Rf3
1-0

[Event "Rubinstein mem"]
[Site "Polanica Zdroj"]
[Date "1969.??.??"]
[EventDate "?"]
[Round "4"]
[Result "1/2-1/2"]
[White "Wlodzimierz Schmidt"]
[Black "Nikolai V Krogius"]
[ECO "A14"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "57"]

1.Nf3 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.O-O O-O 6.b3 b6 7.Bb2
Bb7 8.e3 c5 9.Qe2 Nc6 10.d3 Qc7 11.Nc3 Rad8 12.Rfd1 Qb8
13.cxd5 Nxd5 14.Nxd5 Rxd5 15.d4 cxd4 16.Nxd4 Nxd4 17.Bxd4 Rd7
18.Qg4 g6 19.Bxb7 Qxb7 20.Bb2 Rfd8 21.Rxd7 Qxd7 22.Qd4 Qxd4
23.Bxd4 f6 24.f4 Rd5 25.Kf2 Kf7 26.Rc1 e5 27.fxe5 fxe5 28.Bc3
Ba3 29.Rf1 1/2-1/2

[Event "Ch RSFSR, Kuibyshev"]
[Site "Ch RSFSR, Kuibyshev"]
[Date "1970.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Anatoli Karpov"]
[Black "Nikolai V Krogius"]
[ECO "C09"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "107"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 Nc6 5. exd5 exd5 6. Bb5
Bd6 7. O-O Nge7 8. dxc5 Bxc5 9. Nb3 Bb6 10. Re1 O-O 11. Be3
Bg4 12. Bxb6 Qxb6 13. Bxc6 Nxc6 14. Qxd5 Nb4 15. Qe4 Bxf3
16. gxf3 a5 17. a3 Nc6 18. Qe3 Qb5 19. a4 Qh5 20. Qe4 Qg5+
21. Kh1 Qf6 22. Nc5 Rad8 23. c3 b6 24. Nd3 h6 25. f4 Rd7
26. Re3 Rfd8 27. Rg1 Ne7 28. Ne5 Rd1 29. Ree1 Rxe1 30. Rxe1
Nf5 31. Ng4 Qg5 32. Ne5 Qh5 33. Qf3 Qh4 34. Nc4 Qf6 35. h3 Nh4
36. Qe4 Ng6 37. f5 Nh4 38. Ne3 Kh8 39. Re2 Qg5 40. Kh2 h5
41. f4 Qh6 42. Kg3 g5 43. fxg6 Nxg6 44. Nf5 Qf8 45. Qf3 Kg8
46. Qxh5 Rd3+ 47. Kg4 Qa8 48. Nd4 Rd1 49. Nf3 Rd5 50. Ng5 Qc8+
51. Kg3 Rf5 52. Qh7+ Kf8 53. Qh6+ Kg8 54. Ne6 1-0

[Event "Hastings"]
[Site "1"]
[Date "1970.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Lajos Portisch"]
[Black "Nikolai V Krogius"]
[ECO "D35"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "88"]

1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.cxd5 exd5 5.Bg5 c6 6.e3 Be7 7.Qc2
O-O 8.Bd3 Nbd7 9.Nf3 Re8 10.h3 Nf8 11.Bf4 Ng6 12.Bh2 Bd6
13.Bxd6 Qxd6 14.O-O-O a5 15.Kb1 Qb4 16.Na4 Ne4 17.a3 Qe7
18.Nb6 Rb8 19.Bxe4 dxe4 20.Nd2 Be6 21.Ka1 Rbd8 22.Qc5 Qc7
23.Rc1 Ne7 24.Nxe4 Nd5 25.Nxd5 Bxd5 26.Nc3 Bxg2 27.Rhg1 Be4
28.Qg5 Bg6 29.h4 f6 30.Qg4 Qd7 31.Qf3 Qf5 32.Qg3 Re7 33.Ne2
Be8 34.Nf4 b6 35.f3 Qd7 36.e4 Qd6 37.d5 Qe5 38.Ne6 Qxg3
39.Rxg3 Ra8 40.f4 cxd5 41.exd5 Bg6 42.Rcg1 Raa7 43.Rb3 Rad7
44.Rxb6 Rxd5 1/2-1/2

[Event "Hastings"]
[Site "3"]
[Date "1970.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Zvonimir Mestrovic"]
[Black "Nikolai V Krogius"]
[ECO "A45"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "87"]

1.d4 Nf6 2.Nc3 d5 3.Bg5 c6 4.Qd3 Nbd7 5.e4 dxe4 6.Nxe4 Nxe4
7.Qxe4 Nf6 8.Bxf6 gxf6 9.Bc4 Qa5+ 10.c3 Qf5 11.Qe3 Qg6 12.Qg3
Bh6 13.Ne2 O-O 14.Bd3 Qg5 15.f4 Qg4 16.O-O Kh8 17.Rae1 Re8
18.Bc4 Qxg3 19.Nxg3 Kg8 20.f5 Bd7 21.Ne4 b6 22.Rf3 Rac8 23.b4
Ra8 24.g4 a5 25.a3 axb4 26.axb4 Bg5 27.Kg2 Bh4 28.Rb1 Ra3
29.Kh3 Bg5 30.Kg3 e5 31.dxe5 Rxe5 32.Bd3 c5 33.bxc5 bxc5 34.h4
Bc6 35.hxg5 Bxe4 36.gxf6 Bc6 37.Rb8+ Re8 38.Rxe8+ Bxe8 39.Re3
Kf8 40.Be4 Ra6 41.c4 Rxf6 42.g5 Rd6 43.f6 Bc6 44.Rd3 1-0

[Event "Hastings"]
[Site "4"]
[Date "1970.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Robert Wade"]
[ECO "E17"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "55"]

1.Nf3 Nf6 2.c4 e6 3.g3 b6 4.Bg2 Bb7 5.O-O Be7 6.Nc3 O-O 7.d4
Ne4 8.Bd2 d5 9.Qc2 Nxc3 10.Bxc3 Nd7 11.Rfd1 Qc8 12.b3 Nf6
13.Rac1 dxc4 14.bxc4 Be4 15.Qb3 Qa6 16.d5 exd5 17.cxd5 Nd7
18.Nd4 Nc5 19.Qb2 Bf6 20.Bb4 Bxg2 21.Kxg2 Rfe8 22.Bxc5 bxc5
23.Rxc5 Bxd4 24.Qxd4 Rxe2 25.Rxc7 Qxa2 26.d6 Rd8 27.d7 Qe6
28.Rdc1 1-0

[Event "Hastings"]
[Site "5"]
[Date "1970.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Robert Eugene Byrne"]
[Black "Nikolai V Krogius"]
[ECO "B81"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "72"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g4 h6 7.Be2
Nc6 8.Be3 Bd7 9.Rg1 a6 10.h4 d5 11.exd5 Nxd5 12.Nxd5 exd5
13.g5 hxg5 14.hxg5 Qa5+ 15.c3 Ne5 16.Nb3 Qc7 17.Qxd5 Bc6
18.Qa5 Qxa5 19.Nxa5 Nf3+ 20.Bxf3 Bxf3 21.Nb3 O-O-O 22.Nd4 Be4
23.O-O-O Bd6 24.Nb3 Bc7 25.Rxd8+ Rxd8 26.Nd4 Rh8 27.a4 Rh1
28.Rxh1 Bxh1 29.Kd2 Kd7 30.Kd3 Bg2 31.f3 Be5 32.Ke4 Bxd4
33.Bxd4 g6 34.a5 Kc6 35.c4 Bf1 36.b3 Be2 1/2-1/2

[Event "Hastings"]
[Site "6"]
[Date "1970.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Svetozar Gligoric"]
[Black "Nikolai V Krogius"]
[ECO "D90"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "29"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.cxd5 Nxd5 6.Bd2 c5 7.Rc1
Nxc3 8.Bxc3 cxd4 9.Nxd4 O-O 10.e3 Qb6 11.Bc4 Bd7 12.O-O Nc6
13.Bd5 Rad8 14.Bxc6 Bxc6 15.Qb3 1/2-1/2

[Event "Hastings"]
[Site "7"]
[Date "1970.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Peter Richard Markland"]
[ECO "A04"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "166"]

1.Nf3 c5 2.g3 g6 3.Bg2 Bg7 4.O-O Nc6 5.e4 e6 6.d3 Nge7 7.Nbd2
O-O 8.Re1 d6 9.c3 Rb8 10.a4 a6 11.Nb3 b5 12.axb5 axb5 13.d4 c4
14.Nbd2 d5 15.exd5 exd5 16.Nf1 Bf5 17.Bf4 Ra8 18.Ne5 Nxe5
19.Bxe5 Bxe5 20.Rxe5 Be6 21.Re1 Rxa1 22.Qxa1 Qa8 23.Ne3 Qa4
24.Qxa4 bxa4 25.Nc2 Nc6 26.Ra1 Rb8 27.Ra2 f6 28.Kf1 Kf8 29.Ne3
Ne7 30.Ke1 Rb6 31.Kd2 Ke8 32.Bf3 Ra6 33.h4 Kd8 34.Bd1 Bd7
35.f4 h6 36.g4 g5 37.hxg5 hxg5 38.Bf3 Be6 39.f5 Bf7 40.Ra1 Ra7
41.Nc2 Ke8 42.Nb4 Kf8 43.Kc2 Ra8 44.Rh1 Kg7 45.Re1 Kf8 46.Bh1
Ra7 47.Bg2 Ra8 48.Bf3 Ra7 49.Ra1 Ra8 50.Kb1 Ra7 51.Ka2 Ra8
52.Re1 Ra7 53.Re2 Ra8 54.Ka3 Ra7 55.Nc2 Ra5 56.Re1 Bg8 57.Nb4
Ra7 58.Ka2 Bf7 59.Ra1 Ra5 60.Kb1 Ra8 61.Kc2 Ra7 62.Kd2 Ra5
63.Bd1 Be8 64.b3 cxb3 65.Bxb3 Nc6 66.Rxa4 Nxd4 67.cxd4 Bxa4
68.Bxd5 Rb5 69.Kc3 Bd1 70.Bc4 Rb7 71.Nd5 Bxg4 72.Nxf6 Bxf5
73.Be2 Ke7 74.Ng4 Kd6 75.Ne3 Be6 76.d5 Bc8 77.Kd4 Rg7 78.Bd3
g4 79.Bf5 Bd7 80.Bxd7 Kxd7 81.Ke4 Rg8 82.Kf4 g3 83.Kf3 Rg6
1/2-1/2

[Event "Hastings"]
[Site "8"]
[Date "1970.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Vlastimil Hort"]
[Black "Nikolai V Krogius"]
[ECO "A45"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "40"]

1.d4 Nf6 2.Nc3 d5 3.Bg5 Bf5 4.e3 e6 5.Bd3 Bxd3 6.Qxd3 Nbd7
7.Nf3 Be7 8.O-O O-O 9.e4 Nxe4 10.Bxe7 Qxe7 11.Nxe4 dxe4
12.Qxe4 Qb4 13.Qd3 Rfd8 14.Qb3 Qxb3 15.axb3 c5 16.Rfd1 a6
17.Kf1 cxd4 18.Rxd4 Nf6 19.Rad1 Rxd4 20.Rxd4 Rc8 1/2-1/2

[Event "Hastings"]
[Site "9"]
[Date "1970.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Wolfgang Uhlmann"]
[ECO "C07"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "41"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 exd5 5.Bb5+ Bd7 6.Qe2+ Be7
7.Bxd7+ Nxd7 8.dxc5 Ngf6 9.Ngf3 O-O 10.O-O Re8 11.Nb3 Nxc5
12.Nxc5 Bxc5 13.Qd3 Qb6 14.c3 Ne4 15.Nd4 Bxd4 16.Qxd4 Qxd4
17.cxd4 Rac8 18.Be3 Rc2 19.Rab1 Rec8 20.Rfc1 Rxc1+ 21.Rxc1
1/2-1/2

[Event "USSR"]
[Site "USSR"]
[Date "1970.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Oleg L Chernikov"]
[ECO "C43"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "61"]

1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Bd6 6. Nc3
Nxc3 7. bxc3 O-O 8. O-O c5 9. Qh5 g6 10. Qh6 c4 11. Bg5 Be7
12. Bxe7 Qxe7 13. Rae1 Qd6 14. Nxf7 Rxf7 15. Re8+ Rf8 16. Rfe1
Nc6 17. Bxg6 hxg6 18. Rxf8+ Qxf8 19. Qxg6+ Kh8 20. Re8 Qxe8
21. Qxe8+ Kg7 22. g4 Rb8 23. Qh5 Be6 24. f4 Bf7 25. Qg5+ Kf8
26. h4 Re8 27. h5 Re7 28. f5 Bg8 29. Qh6+ Ke8 30. g5 Rd7
31. g6 1-0

[Event "Leningrad"]
[Site "Leningrad"]
[Date "1971.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Yuri Balashov"]
[ECO "D79"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "157"]

1.d4 Nf6 2.c4 g6 3.g3 c6 4.Bg2 d5 5.cxd5 cxd5 6.Nf3 Bg7 7.O-O
O-O 8.Ne5 Ne4 9.Nd2 Nd6 10.b3 Nc6 11.Bb2 Qb6 12.Bxd5 Nxd4
13.Ndc4 Nxc4 14.Bxd4 Qd6 15.Nxg6 hxg6 16.Bxg7 Ne3 17.fxe3 Kxg7
18.Be4 Rd8 19.Qxd6 exd6 20.Bd5 Rd7 21.Rfd1 Rb8 22.Rac1 b5
23.b4 Kf8 24.Kf2 Bb7 25.e4 Ke7 26.Ke3 Bxd5 27.Rxd5 a5 28.a3
axb4 29.axb4 Ke6 30.Rc6 f6 31.h4 Ke7 32.Kf4 Ke6 33.g4 Rh8
34.Kg3 Rb8 35.Kf3 Rh8 36.Kg3 Rb8 37.e3 Rbb7 38.Kf4 Rd8 39.Kf3
Rh7 40.Kg3 Rb7 41.Ra6 Rdd7 42.Ra5 Rbc7 43.Raxb5 Rc1 44.Rb6
Rg1+ 45.Kf3 Rh1 46.h5 gxh5 47.gxh5 Rh3+ 48.Ke2 Rh2+ 49.Kd3 Rh1
50.Rc6 Rd1+ 51.Ke2 Rb1 52.b5 Rb2+ 53.Kf3 Rh2 54.b6 Rh3+ 55.Ke2
Rh1 56.Kf2 Rh4 57.Kf3 Rh3+ 58.Ke2 Rh1 59.Kd3 Rd1+ 60.Kc2 Re1
61.Kd2 Rh1 62.Rc7 Rxc7 63.bxc7 Kd7 64.Rxd6+ Kxc7 65.Rd5 Rh2+
66.Kd3 Rh4 67.Rf5 Kd7 68.e5 fxe5 69.Rxe5 Kd6 70.Ra5 Ke6 71.h6
Kf6 72.Ra7 Ke5 73.Rh7 Ke6 74.Rh8 Kf7 75.e4 Kg6 76.Kd4 Rh5
77.e5 Rh4+ 78.Kd5 Ra4 79.Rg8+ 1-0

[Event "Leningrad"]
[Site "Leningrad"]
[Date "1971.??.??"]
[EventDate "?"]
[Round "21"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "David Bronstein"]
[ECO "B02"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "32"]

1. e4 Nf6 2. e5 Nd5 3. c4 Nb4 4. d4 d6 5. e6 fxe6 6. Nf3 Nd7
7. Nc3 c6 8. a3 Na6 9. Bd3 Nf6 10. Ng5 g6 11. h4 Bg7 12. h5
gxh5 13. Rxh5 Kd7 14. Rh4 Qg8 15. Be3 Nc7 16. Qc2 b6 1/2-1/2

[Event "Ch URS"]
[Site "Leningrad (Russia)"]
[Date "1971.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Roman Dzindzichashvili"]
[Black "Nikolai V Krogius"]
[ECO "E46"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "175"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Ne2 d5 6.a3 Bd6 7.c5 Be7
8.b4 b6 9.Nf4 a5 10.Rb1 axb4 11.axb4 bxc5 12.bxc5 Ba6 13.Bxa6
Rxa6 14.Qd3 Ra8 15.Qb5 Qd7 16.Qxd7 Nbxd7 17.Bd2 c6 18.Nd3 Rfc8
19.Ke2 Kf8 20.Ra1 Ke8 21.f3 Bd8 22.Rhb1 Ng8 23.g4 Bc7 24.e4
Ne7 25.e5 f6 26.f4 f5 27.h3 Nf8 28.Na4 Nd7 29.Ra2 Ra7 30.Rba1
Rca8 31.Be1 Nf8 32.Kd1 Nfg6 33.Kc2 Kd7 34.Kb3 Ke8 35.Nb6 Rxa2
36.Rxa2 Rxa2 37.Kxa2 Nf8 38.Kb3 Nd7 39.Na8 Bd8 40.g5 Nc8
41.Ka4 Na7 42.Nc1 Nb5 43.Ne2 h6 44.h4 h5 45.Bf2 Kf7 46.Kb4 Ke8
47.Ng3 g6 48.Ne2 Ke7 49.Ka4 Ke8 50.Be3 Ke7 51.Nc1 Ke8 52.Kb4
Ke7 53.Nb3 Ke8 54.Na1 Ke7 55.Nc2 Ke8 56.Bc1 Ke7 57.Bb2 Bc7
58.Nxc7 Nxc7 59.Ka5 Kd8 60.Nb4 Nb8 61.Kb6 Kc8 62.Nc2 Na8+
63.Ka7 Nc7 64.Na3 Nd7 65.Bc3 Nb8 66.Bb2 Nd7 67.Ba1 Nb8 68.Nb1
Nd7 69.Nc3 Nb8 70.Na4 Nb5+ 71.Kb6 Nc7 72.Bb2 Nb5 73.Bc3 Na3
74.Nb2 Nb5 75.Nd1 Na3 76.Ne3 Nb5 77.Bb2 Nc7 78.Nc2 Na8+ 79.Ka7
Nc7 80.Nb4 Nb5+ 81.Kb6 Nc7 82.Na2 Na8+ 83.Ka5 Kb7 84.Nc1 Nc7
85.Ne2 Nba6 86.Ka4 Nb5 87.Bc3 Nac7 88.Ba5 1/2-1/2

[Event "Leningrad"]
[Site "Leningrad"]
[Date "1971.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Efim Geller"]
[Black "Nikolai V Krogius"]
[ECO "D56"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "94"]

1.c4 e6 2.Nc3 d5 3.d4 Be7 4.Nf3 Nf6 5.Bg5 h6 6.Bh4 O-O 7.e3
Ne4 8.Bxe7 Qxe7 9.Qc2 Nxc3 10.Qxc3 c6 11.Bd3 dxc4 12.Bxc4 Nd7
13.O-O b6 14.e4 Bb7 15.Rfe1 Rfe8 16.Rad1 c5 17.Bb5 Red8 18.d5
exd5 19.exd5 Qf6 20.Qc4 Nf8 21.Ne5 Ng6 22.Nxg6 Qxg6 23.Re7
Bxd5 24.Qf1 Bxa2 25.Rxa7 Bb3 26.Rd3 Be6 27.Qa1 Rab8 28.Rb7 c4
29.Rxb8 Qxd3 30.Rxd8+ Qxd8 31.h3 Qd5 32.Qa4 g6 33.Qb4 Qd1+
34.Kh2 Qd4 35.Kg1 h5 36.Bc6 h4 37.Bf3 Kg7 38.Qb5 Qc5 39.Qa4
Qa5 40.Qd1 Qe5 41.Qd2 Bf5 42.Be2 Be6 43.Bf3 Qa5 44.Qe2 c3
45.Qd1 cxb2 46.Qd4+ f6 47.Qxb2 Qe1+ 0-1

[Event "URS-ch39 Leningrad ;URS-ch"]
[Site "URS-ch39 Leningrad ;URS-ch"]
[Date "1971.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Anatoli Karpov"]
[ECO "E17"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "24"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O
7. Nc3 Ne4 8. Nxe4 Bxe4 9. Ne1 Bxg2 10. Nxg2 d6 11. b3 Bf6
12. Bb2 c5 1/2-1/2

[Event "Hastings (England)"]
[Site "Hastings (England)"]
[Date "1971.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Raymond Keene"]
[ECO "E67"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "92"]

1.d4 {Notes by Raymond Keene.} g6 2.Nf3 Bg7 3.c4 d6 4.Nc3 Nd7
5.g3 Ngf6 6.Bg2 O-O 7.O-O e5 8.h3 Re8 { 8...c6 9.e4 Qb6 } 9.e4
c6 10.Be3 Qa5 {?! 10...exd4 11.Nxd4 Nc5 12.Qc2 a5 13.Rad1 a4
=, drawish position ! 14.Nxc6 ! [ed.] bxc6 15.Bxc5 } 11.d5 c5
12.a3 { 12.Ne1 !? with the idea Nd3 followed by queenside
play, aiming for b4. } Qd8 13.b4 b6 14.Ne1 Re7 15.Nd3 Ne8
16.a4 a5 17.bxa5 bxa5 18.Nb5 Ra6 {! 18...f5?! 19.exf5 gxf5
20.Nxc5 ! Nxc5 21.Bxc5 dxc5 22.d6 Rea7 23.Bxa8 Rxa8 24.Qd5+ +-
} 19.Rc1 { 19.g4!? 19.Qc2!? } f5 20.exf5 {? 20.f3 } gxf5 21.f4
e4 22.Nf2 Nf8 23.g4 Ng6 24.g5 Ra8 { 24...Nh4 ? 25.Qh5 Nxg2
26.Kxg2 } 25.Nh1 Nc7 26.Qe1 h6 {!! 26...Na6 27.Qg3 Nb4 28.Nf2
=, drawish position } 27.Qg3 {! 27.h4 ? hxg5 28.hxg5 Na6 =/+ }
hxg5 28.Qxg5 Nxb5 29.cxb5 Kh7 {? 29...Kf7 ! 30.Ng3 Bf6 31.Qh5
Qh8 =/+ ! } 30.Ng3 Bh6 31.Qh5 Qf8 32.Rc4 { 32.Nxe4 ? fxe4
33.f5 Nh8 34.f6 Re5 -+ } Qf6 { 32...Rf7 33.Rxe4 fxe4 34.f5 !
Ne5 35.f6 Rxf6 [ 35...Nf3+ 36.Bxf3 exf3 37.Bxh6 ! ] 36.Rxf6
Qxf6 37.Nxe4 Qf8 38.Bxh6 Qxh6 39.Nf6+ Kg7 40.Ne8+ Kh7 41.Be4+
+- } 33.Rxe4 fxe4 { 33...Bd7 ! 34.Rxe7+ Nxe7 35.Kh2 +/= }
34.f5 Nh8 { 34...Ne5 35.Nxe4 Qf8 36.f6 +- } 35.Nxe4 Rxe4
36.Bxe4 Nf7 37.Qg6+ Qxg6+ 38.fxg6+ Kh8 39.gxf7 Bxe3+ 40.Kh2
Bh6 { 40...Bf5 41.Rxf5 Kg7 42.b6 c4 43.b7 +- } 41.f8=Q+ Bxf8
42.Rxf8+ Kg7 43.Rd8 Kf6 44.Kg3 Ke5 45.Re8+ Kd4 46.Kf4 {Black
resigned.} 1-0

[Event "Ch URS"]
[Site "Leningrad (Russia)"]
[Date "1971.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Igor V Platonov"]
[Black "Nikolai V Krogius"]
[ECO "D41"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "77"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 d5 4.d4 c5 5.cxd5 Nxd5 6.e4 Nxc3
7.bxc3 cxd4 8.cxd4 Nc6 9.Bc4 Bb4+ 10.Bd2 Qa5 11.d5 Bxd2+
12.Qxd2 Qxd2+ 13.Kxd2 Na5 14.Rac1 Ke7 15.Ke3 Rd8 16.Rhd1 f6
17.Bb5 Kf8 18.Rc7 exd5 19.exd5 a6 20.Be2 Re8+ 21.Kd2 Re7
22.Rdc1 Bg4 23.h3 Rxc7 24.Rxc7 Rc8 25.Rxc8+ Bxc8 26.Ke3 Ke7
27.Bd3 Kd6 28.Kd4 h6 29.Bg6 b5 30.Nh4 b4 31.Bf5 b3 32.axb3
Nxb3+ 33.Kc3 Bxf5 34.Nxf5+ Ke5 35.Kxb3 Kxf5 36.Kc4 a5 37.g4+
Ke5 38.Kc5 a4 39.d6 1-0

[Event "Ch URS"]
[Site "Leningrad (Russia)"]
[Date "1971.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Lev Polugaevsky"]
[Black "Nikolai V Krogius"]
[ECO "D56"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "34"]

1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 Be7 5. Bg5 h6 6. Bh4 O-O
7. e3 Ne4 8. Bxe7 Qxe7 9. Rc1 c6 10. Bd3 Nxc3 11. Rxc3 Nd7
12. O-O dxc4 13. Bxc4 b6 14. Bd3 c5 15. Bb5 Rd8 16. Qe2 Bb7
17. Rfc1 a6 1/2-1/2

[Event "URS"]
[Site "URS"]
[Date "1971.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Oleg Romanishin"]
[Black "Nikolai V Krogius"]
[ECO "B81"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "72"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 h6
7. g5 hxg5 8. Bxg5 Nc6 9. Qd2 a6 10. O-O-O Qb6 11. Nb3 Bd7
12. Bf4 Ne5 13. Be3 Qc7 14. f4 Nc4 15. Bxc4 Qxc4 16. e5 dxe5
17. fxe5 Nd5 18. Na5 Qc7 19. Nxd5 exd5 20. Qxd5 Rc8 21. Kb1
Qxc2+ 22. Ka1 Be6 23. Qxb7 Rxh2 24. Bg5 Rxh1 25. Rxh1 Qc5
26. Nb3 Qxe5 27. Rc1 Rxc1+ 28. Bxc1 f6 29. Qxa6 g5 30. Nd4 Bd7
31. Nf3 Qc5 32. Bxg5 Qd5 33. Qe2+ Be6 34. b3 fxg5 35. Nxg5
Bg7+ 36. Kb1 Qf5+ 0-1

[Event "Ch URS"]
[Site "Leningrad (Russia)"]
[Date "1971.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Leonid Shamkovich"]
[Black "Nikolai V Krogius"]
[ECO "B80"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "82"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g3 Nc6 7.Bg2
Bd7 8.Nde2 a6 9.b3 Be7 10.Bb2 O-O 11.O-O b5 12.Qd2 Qc7 13.Rac1
Rfd8 14.Nd1 d5 15.exd5 Nxd5 16.Ne3 Nf6 17.c4 Rac8 18.Qc2 Qb8
19.Nd4 Ne5 20.Qe2 bxc4 21.Nxc4 Nxc4 22.Rxc4 Rxc4 23.Qxc4 Bb5
24.Nxb5 axb5 25.Qe2 b4 26.Rc1 Rc8 27.Rc4 Rxc4 28.Qxc4 h6
29.Bd4 Qd8 30.Bf3 Bf8 31.Kg2 Qd6 32.Be3 Nd5 33.Bxd5 exd5
34.Qd4 h5 35.Bd2 g6 36.Bf4 Qe6 37.Qe5 Qxe5 38.Bxe5 f5 39.Kf3
Bc5 40.Ke2 Kf7 41.f3 Ke6 1/2-1/2

[Event "Leningrad"]
[Site "Leningrad"]
[Date "1971.??.??"]
[EventDate "?"]
[Round "17"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Vasily Smyslov"]
[ECO "C42"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "21"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Qe2 Qe7 6. d3
Nf6 7. Bg5 Qxe2+ 8. Bxe2 Be7 9. Nc3 h6 10. Bh4 Nc6 11. O-O-O
1/2-1/2

[Event "Ch URS"]
[Site "Leningrad (Russia)"]
[Date "1971.??.??"]
[EventDate "?"]
[Round "16"]
[Result "1-0"]
[White "Leonid Stein"]
[Black "Nikolai V Krogius"]
[ECO "A15"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "121"]

1.c4 Nf6 2.g3 c6 3.Bg2 d5 4.Nf3 g6 5.b3 Bg7 6.Bb2 O-O 7.O-O
Nbd7 8.Nc3 b6 9.d4 Ba6 10.Nd2 Rc8 11.Rb1 c5 12.dxc5 d4 13.Nb5
Bxb5 14.cxb5 Nxc5 15.Nf3 d3 16.Ne5 Nfe4 17.Nc6 Bxb2 18.Nxd8
Nc3 19.Qd2 Nxe2+ 20.Kh1 Bc3 21.Qe3 Rcxd8 22.b4 Na4 23.Bf3 Bf6
24.Rb3 Nd4 25.Rxd3 Nb2 26.Rc3 Nxb5 27.Rb3 Nc4 28.Qe2 Rc8
29.Rd1 Nd4 30.Rxd4 Bxd4 31.Bd5 Ne5 32.Qe4 Rc1+ 33.Kg2 Ba1
34.Rb1 Rxb1 35.Qxb1 Bc3 36.Qb3 Bd4 37.Qa4 e6 38.Bb3 Nd3 39.f4
h5 40.Qd7 Ne1+ 41.Kf1 Nf3 42.Kg2 Ne1+ 43.Kh3 Bc3 44.Qxa7 Nd3
45.Qxb6 Nxb4 46.a4 Rc8 47.Bxe6 Rc6 48.Qd8+ Kg7 49.Bb3 Rf6
50.Qc7 Bd4 51.Bxf7 Rxf7 52.Qc4 Ba7 53.Qxb4 Bg1 54.a5 Ba7 55.a6
Bg1 56.Qd6 Ba7 57.Kh4 Bg1 58.Qe5+ Kh7 59.Qd5 Kg7 60.Qe5+ Kh7
61.Qe6 1-0

[Event "Leningrad"]
[Site "Leningrad"]
[Date "1971.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Nikolai V Krogius"]
[Black "Mark Taimanov"]
[ECO "A46"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "112"]

1.d4 Nf6 2.Nf3 c5 3.g3 cxd4 4.Nxd4 d5 5.Bg2 e5 6.Nb3 Be7 7.O-O
O-O 8.Bg5 Nbd7 9.c4 dxc4 10.N3d2 Nb6 11.Nc3 Ne8 12.Be3 Nd6
13.a4 Be6 14.a5 Nd7 15.Nd5 a6 16.Bb6 Nxb6 17.Nxb6 Rb8 18.Qc1
Qe8 19.Ndxc4 Nxc4 20.Nxc4 Qb5 21.Nb6 Bb4 22.Qe3 Bxa5 23.Na4
Rfc8 24.Nc3 Qxb2 25.Nd5 Bd2 26.Qd3 Bg5 27.h4 Bd8 28.Rfb1 Qc2
29.Qe3 a5 30.Nb6 Bxb6 31.Qxb6 Qxe2 32.Rxa5 e4 33.Re5 Qa6
34.Bxe4 Rc1+ 35.Kh2 Rxb1 36.Qxb1 g6 37.Rb5 b6 38.h5 Bc4 39.Re5
b5 40.Qb4 Qf6 41.f4 Kg7 42.Bg2 Rd8 43.Qc3 Rd6 44.Qe3 Rd3
45.Qe1 Qd6 46.Qa1 Rd4 47.Qa8 Qd8 48.Qc6 Rd2 49.f5 Qd6 50.Qxd6
Rxd6 51.fxg6 hxg6 52.hxg6 Kxg6 53.g4 Rd4 54.g5 Kh5 55.Be4 Kh4
56.g6 f6 0-1

[Event "Leningrad URS ch"]
[Site "6"]
[Date "1971.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Mikhail Tal"]
[Black "Nikolai V Krogius"]
[ECO "C89"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "43"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3
O-O 8.c3 d5 9.exd5 Nxd5 10.Nxe5 Nxe5 11.Rxe5 c6 12.d4 Bd6
13.Re1 Qh4 14.g3 Qh3 15.Re4 Qd7 16.Nd2 Nf6 17.Rh4 Bb7 18.Nf3
Rae8 19.Bg5 Ne4 20.Bc2 f5 21.Bb3+ Rf7 22.Bf4 1-0

[Event "URS-ch39 Leningrad ;URS-ch"]
[Site "URS-ch39 Leningrad ;URS-ch"]
[Date "1971.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Rafael Vaganian"]
[Black "Nikolai V Krogius"]
[ECO "E91"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "82"]

1.Nf3 Nf6 2.c4 g6 3.Nc3 Bg7 4.d4 d6 5.e4 O-O 6.Be2 Bg4 7.Be3
Nfd7 8.Qd2 e5 9.d5 Bxf3 10.gxf3 Nf6 11.O-O-O Nh5 12.h4 Nd7
13.Rdg1 a6 14.Kb1 Qe7 15.Bf1 c5 16.Bh3 Nf4 17.h5 b5 18.hxg6
hxg6 19.Bxd7 Qxd7 20.Ne2 bxc4 21.Rc1 Qb5 22.Nc3 Qb4 23.Nd1
Rfc8 24.Rc3 Bf6 25.Qc2 Kg7 26.Rxc4 Qb5 27.Bc1 Rh8 28.Rg1 Rh3
29.Ne3 Rxf3 30.Rg3 Rxg3 31.fxg3 Nh3 32.Rc3 Qd7 33.Nc4 Rh8
34.Ra3 Bg5 35.Rxa6 Bxc1 36.Kxc1 Ng5 37.Qe2 Qh3 38.Nd2 Qxg3
39.Ra3 Qg1+ 40.Kc2 Rh2 41.Qe3 Qg4 0-1

[Event "USSR Championship"]
[Site "Leningrad"]
[Date "1971.??.??"]
[EventDate "?"]
[Round "18"]
[Result "1-0"]
[White "Vladimir A Savon"]
[Black "Nikolai V Krogius"]
[ECO "A14"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "82"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. b3 c5
7. cxd5 Nxd5 8. Bb2 b6 9. d4 Bb7 10. dxc5 Bxc5 11. Nbd2 Nd7
12. Nd4 Rc8 13. Ne4 Be7 14. Nb5 Ba6 15. a4 Bxb5 16. axb5 Rc7
17. Qd4 N7f6 18. Rfd1 Qc8 19. Qe5 Rd7 20. Ra4 h6 21. g4 Bd8
22. Rd3 Bc7 23. Nxf6+ Nxf6 24. Qe3 Rxd3 25. Qxd3 Qb8 26. h3
Be5 27. Bxe5 Qxe5 28. Rxa7 h5 29. gxh5 Nxh5 30. e3 Rc8 31. Bc6
Qg5+ 32. Kh2 Qh4 33. Kg2 Qg5+ 34. Kf1 Qh4 35. Kg2 Qg5+ 36. Kf1
Qh4 37. Rxf7 Qxh3+ 38. Ke1 Qh4 39. Qg6 Rd8 40. Qxe6 Kh8
41. Qe7 Qxe7 1-0

[Event "USSR Championship"]
[Site "Leningrad"]
[Date "1971.??.??"]
[EventDate "?"]
[Round "19"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Albert Z Kapengut"]
[ECO "B30"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "32"]

1. Nf3 c5 2. e4 Nc6 3. c3 d5 4. exd5 Qxd5 5. d4 e6 6. Be2 Nf6
7. Be3 cxd4 8. Nxd4 Nxd4 9. Bxd4 Bc5 10. Bf3 Qd6 11. Bxc5 Qxc5
12. O-O O-O 13. Nd2 Qc7 14. Qb3 Bd7 15. Rfd1 Bc6 16. Qc4 Rac8
1/2-1/2

[Event "USSR Championship"]
[Site "Leningrad"]
[Date "1971.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Vladimir Karasev"]
[Black "Nikolai V Krogius"]
[ECO "B81"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "98"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 h6
7. g5 hxg5 8. Bxg5 Nc6 9. Nb3 a6 10. f4 Qc7 11. Qe2 b5
12. O-O-O b4 13. Na4 Bd7 14. e5 dxe5 15. Bxf6 gxf6 16. Bg2 Rc8
17. Rxd7 Kxd7 18. Qxa6 Bh6 19. Nb6+ Ke7 20. Nxc8+ Rxc8 21. Qc4
Bxf4+ 22. Kb1 f5 23. Rd1 e4 24. h4 Kf6 25. Rf1 Qd6 26. c3 bxc3
27. Qxc3+ Ke7 28. h5 Nb4 29. Qd4 Qxd4 30. Nxd4 Be5 31. Rd1 Nd3
32. Nc6+ Rxc6 33. Rxd3 Rb6 34. Rd2 e3 35. Re2 Bxb2 36. Rxe3
Bd4 37. Rb3 Rxb3+ 38. axb3 Kf6 39. Kc2 Kg5 40. Kd3 Ba7 41. Bf3
e5 42. Kc4 e4 43. Bd1 f4 44. Kd5 f5 45. Ke6 f3 46. h6+ Bd4
47. Kd5 Bf6 48. b4 Kxh6 49. b5 Bd8 0-1

[Event "USSR Championship"]
[Site "Leningrad"]
[Date "1971.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Yuri V Nikolaevsky"]
[Black "Nikolai V Krogius"]
[ECO "D32"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "88"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. e3 Nc6 6. a3 cxd4
7. exd4 Be7 8. c5 Ne4 9. Qc2 Nxc3 10. Qxc3 a5 11. Bb5 O-O
12. O-O a4 13. Qc2 Bd7 14. Rd1 Ne5 15. Nxe5 Bxb5 16. Re1 b6
17. b4 axb3 18. Qxb3 Ba4 19. Qg3 Kh8 20. Bb2 bxc5 21. dxc5 f6
22. Nd3 e5 23. Rac1 Rc8 24. Bc3 d4 25. Bb4 Bc6 26. f3 Qd7
27. Nb2 Bd5 28. Qf2 Rfe8 29. Qc2 Qe6 30. Qd3 f5 31. Nc4 e4
32. Qf1 Bxc5 33. Nb2 Bxb4 34. Rxc8 Qxc8 35. axb4 Qc3 36. fxe4
fxe4 37. Qe2 Qxb4 38. Nd3 Qb6 39. Qh5 Bc6 40. Rf1 g6 41. Qh6
Kg8 42. Ne5 d3 43. Kh1 e3 44. Ng4 e2 0-1

[Event "USSR Championship"]
[Site "Leningrad"]
[Date "1971.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "V Tukmakov"]
[ECO "D76"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "76"]

1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. cxd5
Nxd5 7. d4 Nb6 8. Nc3 Nc6 9. d5 Na5 10. e4 c6 11. Bg5 cxd5
12. exd5 h6 13. Bf4 Nac4 14. Qe2 g5 15. Bc1 Bg4 16. h3 Bh5
17. Re1 Re8 18. a4 a5 19. g4 Bg6 20. h4 e6 21. hxg5 exd5
22. Qxe8+ Qxe8 23. Rxe8+ Rxe8 24. gxh6 Bh8 25. Nb5 Nxb2
26. Be3 N6xa4 27. Nfd4 Rd8 28. Bf1 Nc5 29. Bg5 Ra8 30. Nc7
Bxd4 31. Nxa8 Nbd3 32. Rxa5 Nxf2 33. Kh2 Nxg4+ 34. Kg3 f5
35. Bf4 Kh7 36. Nc7 Nxh6 37. Nxd5 Ng4 38. Ne7 Nf6 1/2-1/2

[Event "USSR Championship"]
[Site "Leningrad"]
[Date "1971.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "K Grigorian"]
[ECO "E10"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "30"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. g3 cxd4 5. Nxd4 d5 6. Bg2 e5
7. Nf3 e4 8. Nd4 Bb4+ 9. Nc3 O-O 10. cxd5 Nxd5 11. Bd2 Bxc3
12. bxc3 Qe7 13. O-O Na6 14. Qb3 Nb6 15. a4 Nc5 1/2-1/2

[Event "USSR Championship"]
[Site "Leningrad"]
[Date "1971.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Mikhail S Tseitlin"]
[ECO "E60"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "61"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Nb6
7. Nc3 Nc6 8. O-O Nxd4 9. Nxd4 Bxd4 10. Nb5 Be5 11. Qxd8+ Kxd8
12. Rd1+ Nd7 13. Be3 a6 14. Na7 c6 15. Rd2 Kc7 16. Rc1 Nb8
17. b4 Rd8 18. Rxd8 Kxd8 19. a4 Bd7 20. b5 axb5 21. axb5 Kc7
22. h3 Bd6 23. Ra1 c5 24. Bd2 Na6 25. Ba5+ Kb8 26. bxa6 Rxa7
27. Bxb7 Bc7 28. Bxc7+ Kxc7 29. Rc1 Kd6 30. Rd1+ Kc7 31. Rc1
1/2-1/2

[Event "USSR Championship"]
[Site "Leningrad"]
[Date "1971.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Anatoly Lein"]
[ECO "E97"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "85"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 e5
7. O-O Nc6 8. Be3 Ng4 9. Bg5 f6 10. Bh4 Nh6 11. d5 Ne7 12. Rc1
Nf7 13. b4 a5 14. a3 axb4 15. axb4 h5 16. Bg3 f5 17. exf5 Nxf5
18. h3 Nxg3 19. fxg3 Nh6 20. Nd2 Nf5 21. Nde4 Bh6 22. Ra1 Be3+
23. Kh2 Rxa1 24. Qxa1 Nh6 25. Qe1 Rxf1 26. Bxf1 Nf5 27. Bd3
Bh6 28. Kh1 Kg7 29. Nd1 Nd4 30. Ndf2 Bf5 31. g4 hxg4 32. Nxg4
Bxg4 33. hxg4 Bf4 34. g3 Bg5 35. Kg2 Be7 36. Nc3 Qh8 37. Ne2
Nxe2 38. Qxe2 Qh6 39. Qe1 Bf6 40. b5 b6 41. Bc2 Kf7 42. Bd3
Qg5 43. Kf3 1/2-1/2

[Event "URS-ch sf"]
[Site "Perm"]
[Date "1971.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Anatoly S Lutikov"]
[ECO "E69"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "56"]

1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 O-O 5.Bg2 d6 6.O-O Nbd7 7.Nc3
e5 8.h3 c6 9.e4 Qb6 10.c5 dxc5 11.dxe5 Ne8 12.Bg5 Nc7 13.Be7
Re8 14.Bd6 Ne6 15.Na4 Qa6 16.Qc2 c4 17.b3 b5 18.Nb2 cxb3
19.axb3 Qb6 20.Nd3 Bb7 21.b4 a5 22.bxa5 Rxa5 23.Rxa5 Qxa5
24.Nb4 Qa8 25.Rc1 Rc8 26.Qd1 Nb6 27.Nd4 Nxd4 28.Qxd4 Qa5
1/2-1/2

[Event "USSR"]
[Site "USSR"]
[Date "1973.??.??"]
[EventDate "?"]
[Round "15"]
[Result "1/2-1/2"]
[White "Lev Polugaevsky"]
[Black "Nikolai V Krogius"]
[ECO "A14"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "134"]

1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 Be7 5. O-O O-O 6. d4 dxc4
7. Qc2 a6 8. a4 Nc6 9. Qxc4 Qd5 10. Qd3 Rd8 11. Nc3 Qh5
12. Qc4 Nd5 13. a5 Bd7 14. e4 Nxc3 15. bxc3 Nxa5 16. Qxc7 Nb3
17. Rb1 Nxc1 18. Rfxc1 Ba3 19. Rc2 Bd6 20. Qb6 Rac8 21. c4 Bc7
22. Qb2 b5 23. cxb5 Qxb5 24. Qxb5 axb5 25. Bf1 Ba5 26. Rxc8
Rxc8 27. Ne5 Be8 28. Bxb5 Rb8 29. Nc4 Bc3 30. Nd6 Bd7 31. Rc1
Bb4 32. Bxd7 Bxd6 33. Rc6 Be7 34. Rc7 Bd8 35. Rc4 Kf8 36. Kg2
Rb2 37. Ba4 Ke7 38. Kf3 Bb6 39. e5 f6 40. exf6+ gxf6 41. Bc2
h6 42. Ke4 Ba5 43. Rc5 Bb6 44. Rc4 Ba5 45. Kd3 Rb4 46. Rc6 Bb6
47. Kc3 Kd7 48. d5 exd5 49. Rxf6 Bd4+ 50. Kxb4 Bxf6 51. Kc5
Ke6 52. Bb3 Be7+ 53. Kd4 Bf6+ 54. Ke3 Ke5 55. Kf3 Bd8 56. Kg4
Kf6 57. Kh5 Kg7 58. h4 Bb6 59. f3 Bc7 60. g4 d4 61. Bc4 d3
62. Bxd3 Bd6 63. g5 hxg5 64. hxg5 Bc7 65. Kg4 Bd6 66. f4 Bc7
67. f5 Bd8 1/2-1/2

[Event "Sochi (Russia)"]
[Site "Sochi (Russia)"]
[Date "1973.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Alexey Suetin"]
[Black "Nikolai V Krogius"]
[ECO "B45"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "30"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 d6 6.Be3 Nf6 7.f4
e5 8.fxe5 dxe5 9.Nxc6 Qxd1+ 10.Nxd1 bxc6 11.Nf2 Be6 12.a3 Be7
13.O-O-O O-O 14.Rd3 Rfc8 15.Rc3 c5 1/2-1/2

[Event "Sochi"]
[Site "04"]
[Date "1973.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Laszlo Szabo"]
[Black "Nikolai V Krogius"]
[ECO "A13"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "30"]

1.c4 Nf6 2.Nf3 e6 3.g3 d5 4.b3 Be7 5.Bg2 O-O 6.Bb2 c5 7.O-O
Nc6 8.e3 b6 9.Nc3 Ba6 10.d3 Rc8 11.Qe2 Qc7 12.Rac1 Rfd8
13.Rfd1 dxc4 14.bxc4 Qb8 15.Nb5 Bb7 1/2-1/2

[Event "Sochi"]
[Site "08"]
[Date "1973.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Mikhail Tal"]
[ECO "A15"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "32"]

1.Nf3 Nf6 2.c4 b6 3.g3 Bb7 4.Bg2 c5 5.O-O g6 6.b3 Bg7 7.Bb2
O-O 8.Nc3 Ne4 9.Qc2 Nxc3 10.Bxc3 d5 11.Bxg7 Kxg7 12.cxd5 Qxd5
13.Qc3+ Kg8 14.d4 Na6 15.dxc5 Qxc5 16.Qxc5 Nxc5 1/2-1/2

[Event "Chigorin mem"]
[Site "Sochi"]
[Date "1973.09.01"]
[EventDate "?"]
[Round "10"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Miroslav Filip"]
[ECO "D47"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "37"]

1.Nf3 Nf6 2.c4 c6 3.Nc3 d5 4.e3 e6 5.d4 Nbd7 6.Bd3 dxc4 7.Bxc4
b5 8.Bd3 b4 9.Na4 c5 10.O-O cxd4 11.Nxd4 Bb7 12.a3 bxa3
13.bxa3 Be7 14.Bd2 O-O 15.Bb4 Nb6 16.Nxb6 axb6 17.Bxe7 Qxe7
18.Qb3 Nd7 19.Be2 1/2-1/2

[Event "Chigorin mem"]
[Site "Sochi"]
[Date "1973.09.01"]
[EventDate "?"]
[Round "7"]
[Result "1/2-1/2"]
[White "Jan Smejkal"]
[Black "Nikolai V Krogius"]
[ECO "E05"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "25"]

1.c4 Nf6 2.g3 e6 3.Bg2 d5 4.Nf3 Be7 5.O-O O-O 6.d4 dxc4 7.Ne5
Nc6 8.Nxc6 bxc6 9.Bxc6 Rb8 10.Nc3 Bb7 11.Bb5 c5 12.dxc5 Qc7
13.Qd4 1/2-1/2

[Event "Chigorin mem"]
[Site "Sochi"]
[Date "1973.09.01"]
[EventDate "?"]
[Round "1"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Ratmir Kholmov"]
[ECO "A14"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "52"]

1.Nf3 Nf6 2.c4 e6 3.g3 b6 4.Bg2 Bb7 5.O-O Be7 6.b3 O-O 7.Bb2
c5 8.Nc3 d5 9.e3 Nbd7 10.Qe2 Ne4 11.cxd5 Nxc3 12.Bxc3 exd5
13.Rfd1 Re8 14.d4 Nf6 15.dxc5 bxc5 16.Qb2 Qb6 17.Rab1 Ne4
18.Bxg7 d4 19.Be5 Nc3 20.Rxd4 cxd4 21.Bxd4 Na4 22.bxa4 Qxb2
23.Rxb2 Be4 24.Nd2 Bxg2 25.Kxg2 Reb8 26.Rb5 a6 1/2-1/2

[Event "Riga"]
[Site "Riga"]
[Date "1975.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Yuri Balashov"]
[Black "Nikolai V Krogius"]
[ECO "B63"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "68"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2
Be7 8.O-O-O O-O 9.Nb3 h6 10.Bf4 e5 11.Be3 a5 12.f3 a4 13.Na1
a3 14.b3 Be6 15.Nd5 Bxd5 16.exd5 Nd4 17.c4 Nf5 18.Nc2 Nd7
19.Bd3 Nxe3 20.Nxe3 Nc5 21.Bc2 Bg5 22.h4 Bxh4 23.g3 Bg5
24.Rdf1 Qf6 25.Kd1 Bxe3 26.Qxe3 e4 27.fxe4 Qb2 28.e5 Rae8
29.e6 fxe6 30.Rxf8+ Rxf8 31.b4 Qxb4 32.dxe6 Qxc4 33.e7+ Qd5+
34.Ke2 Qg2+ 0-1

[Event "URS-chT"]
[Site "Riga"]
[Date "1975.07.15"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "V Tukmakov"]
[Black "Nikolai V Krogius"]
[ECO "B64"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "43"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2
Be7 8.O-O-O O-O 9.f4 h6 10.Bh4 e5 11.Nf5 Bxf5 12.exf5 Qa5
13.Kb1 Rad8 14.Bxf6 Bxf6 15.Nd5 Qxd2 16.Rxd2 exf4 17.Nxf6+
gxf6 18.Be2 Rfe8 19.Rf1 Re4 20.Bd3 Re3 21.b3 Ne5 22.Rxf4
1/2-1/2

[Event "Memorial M.Chigorin"]
[Site "Sochi (Russia)"]
[Date "1976.??.??"]
[EventDate "?"]
[Round "9"]
[Result "1/2-1/2"]
[White "Andras Adorjan"]
[Black "Nikolai V Krogius"]
[ECO "C05"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "44"]

1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.f4 c5 6.Ndf3 cxd4 7.Nxd4
Nc6 8.Ngf3 Nc5 9.c3 Bd7 10.Be3 a6 11.Be2 Be7 12.O-O O-O 13.Rc1
Rc8 14.Nxc6 Bxc6 15.Nd4 Bd7 16.Bg4 g6 17.Qe2 Ne4 18.Bf3 Qa5
19.a3 f5 20.exf6 Bxf6 21.c4 Qa4 22.Rfd1 Rfe8 1/2-1/2

[Event "Sochi"]
[Site "14"]
[Date "1976.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Efim Geller"]
[Black "Nikolai V Krogius"]
[ECO "C87"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "74"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 d6 7.c3
O-O 8.h3 Be6 9.d4 exd4 10.cxd4 d5 11.exd5 Nxd5 12.Nc3 b5
13.Bb3 Nxc3 14.bxc3 Bf5 15.Bf4 Na5 16.Ne5 Bf6 17.Qf3 Nxb3
18.axb3 Bxe5 19.Bxe5 Qd7 20.Qg3 Bg6 21.Bxc7 Qd5 22.b4 f6
23.Bd6 Rfc8 24.Bc5 Rc6 25.Re7 Re6 26.Re1 Rxe1+ 27.Rxe1 Re8
28.Rxe8+ Bxe8 29.Qb8 Kf7 30.Qa7+ Kg6 31.Qxa6 Bc6 32.f3 Qg5
33.Qxc6 Qc1+ 34.Kf2 Qd2+ 35.Kf1 Qd1+ 36.Kf2 Qd2+ 37.Kg3 Qg5+
1/2-1/2

[Event "Sochi"]
[Site "02"]
[Date "1976.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Vlastimil Jansa"]
[ECO "D74"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "31"]

1.Nf3 g6 2.d4 Nf6 3.c4 Bg7 4.g3 O-O 5.Bg2 d5 6.cxd5 Nxd5 7.O-O
Nc6 8.e4 Nb6 9.d5 Na5 10.Na3 c6 11.Qe1 Nac4 12.Nxc4 Nxc4
13.dxc6 bxc6 14.Qb4 Ba6 15.Bg5 Rb8 16.Qxe7 1/2-1/2

[Event "Memorial M.Chigorin"]
[Site "Sochi (Russia)"]
[Date "1976.??.??"]
[EventDate "?"]
[Round "11"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Lev Polugaevsky"]
[ECO "A14"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "24"]

1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 e6 5. O-O Be7 6. Nc3 O-O
7. b3 d5 8. cxd5 Nxd5 9. Bb2 c5 10. d4 Nd7 11. Rc1 Nxc3
12. Bxc3 Rc8 1/2-1/2

[Event "URS Cup-B"]
[Site "Kishinev"]
[Date "1976.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Iivo Nei"]
[Black "Nikolai V Krogius"]
[ECO "A46"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "73"]

1.d4 Nf6 2.Nf3 c5 3.e3 d5 4.c3 Nbd7 5.c4 cxd4 6.exd4 g6 7.Nc3
Bg7 8.Bf4 O-O 9.Rc1 dxc4 10.Bxc4 Nb6 11.Bb3 Nbd5 12.Bg5 b6
13.O-O Bb7 14.Re1 Nxc3 15.bxc3 Ne4 16.Bf4 Rc8 17.Re3 e6 18.Qd3
Nf6 19.Ree1 Nd5 20.Bd2 h6 21.Ne5 Qh4 22.Re4 Qd8 23.Rg4 Ne7
24.Re1 Bd5 25.c4 Bb7 26.d5 h5 27.Rge4 exd5 28.cxd5 Nf5 29.Bb4
Nd6 30.R4e3 a5 31.Ba3 Re8 32.Nc6 Rxe3 33.Rxe3 Bxc6 34.dxc6 Nf5
35.Bxf7+ Kh7 36.Bxg6+ Kxg6 37.Rg3+ 1-0

[Event "Sochi"]
[Site "Sochi"]
[Date "1976.??.??"]
[EventDate "?"]
[Round "12"]
[Result "1/2-1/2"]
[White "Vitaly Tseshkovsky"]
[Black "Nikolai V Krogius"]
[ECO "B45"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "82"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Ndb5 Bb4
7.a3 Bxc3+ 8.Nxc3 d5 9.exd5 exd5 10.Bd3 O-O 11.O-O d4 12.Ne2
Bg4 13.f3 Be6 14.Bg5 Rc8 15.Re1 Ne5 16.Nf4 Nxd3 17.Qxd3 Bc4
18.Qf5 Qd7 19.Qxd7 Nxd7 20.Bh4 Nb8 21.Rad1 Nc6 22.Rd2 h6
23.Bf2 Rfd8 24.h4 a5 25.h5 a4 26.g4 Bb5 27.Kg2 Na5 28.Kg3 Nc6
29.Red1 Ba6 30.Ng2 Rd5 31.Bxd4 Nxd4 32.Rxd4 Rxd4 33.Rxd4 Rxc2
34.Rb4 Rc4 35.Rb6 Rc5 36.Nh4 Rb5 37.Rxb5 Bxb5 38.Kf4 Bd3
39.Ke5 Bc2 40.Nf5 Bd1 41.Nd4 Kf8 1/2-1/2

[Event "Sochi"]
[Site "Sochi"]
[Date "1977.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Nikolai V Krogius"]
[Black "Mihai Suba"]
[ECO "A53"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "61"]

1.d4 Nf6 2.c4 d6 3.Nc3 Bf5 4.f3 e5 5.e4 exd4 6.Qxd4 Nc6 7.Qd2
Be6 8.b3 g6 9.Bb2 Bg7 10.Bd3 O-O 11.Nge2 a6 12.O-O Ne5 13.Rad1
Nxd3 14.Qxd3 Nd7 15.Nd4 Re8 16.Qc2 Qb8 17.Kh1 Qa7 18.Nf5 gxf5
19.exf5 Qe3 20.fxe6 fxe6 21.f4 Qc5 22.Ne4 Qf5 23.Bxg7 Kxg7
24.g4 Qf7 25.Qc3+ Kg8 26.f5 e5 27.g5 Qh5 28.c5 Qe2 29.Rde1 Qb5
30.cxd6 c6 31.Qh3 1-0

[Event "Sochi"]
[Site "Chigorin mem"]
[Date "1977.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Petrosian"]
[Black "Nikolai V Krogius"]
[ECO "E07"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "70"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 d5 4.d4 Be7 5.g3 O-O 6.Bg2 Nbd7 7.O-O
c6 8.Qd3 b6 9. e4 Ba6 10.b3 Rc8 11.Rd1 b5 12.cxd5 cxd5 13.e5
Ne8 14.Nxb5 Nc7 15.a4 Rb8 16. Qe3 Bxb5 17.axb5 Nxb5 18.Bf1 a5
19.Ra4 Na7 20.Bd2 Nc6 21.Rda1 Qb6 22.Bxa5 Qxb3 23.Bd2 Qxe3
24.Bxe3 Nb6 25.Ra6 Nb4 26.Ra7 Nc6 27.Rc7 Rfc8 28.Rxc8+ Rxc8
29.Bb5 Nc4 30.Bxc6 Rxc6 31.Ra8+ Bf8 32.Bg5 Rc7 33.Kg2 h6
34.Bd8 Rb7 35.g4 Kh7 1/2-1/2

[Event "Berlin"]
[Site "Berlin"]
[Date "1990.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Nikolai V Krogius"]
[Black "Oleg Romanishin"]
[ECO "E10"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "76"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. Nc3 cxd4 5. Nxd4 Bb4 6. e3 O-O
7. Be2 Ne4 8. Qc2 Nxc3 9. bxc3 Be7 10. O-O Nc6 11. Rd1 Na5
12. Nb3 Qc7 13. Qd3 Nc6 14. c5 b6 15. Ba3 bxc5 16. Bxc5 d5
17. Rab1 a5 18. Bxe7 Nxe7 19. Qd4 Ba6 20. Bxa6 Rxa6 21. Nc5
Rc6 22. Rb7 Qc8 23. Rxe7 Rxc5 24. Ra7 Qc6 25. g3 Rc4 26. Qe5
Qb6 27. Rd7 h6 28. Rd4 Qb1+ 29. Kg2 Qxa2 30. Ra7 a4 31. Rxc4
Qxc4 32. Qd4 Qc6 33. h4 Ra8 34. Kh2 a3 35. Qf4 Rxa7 36. Qb8+
Kh7 37. Qxa7 Qxc3 38. h5 Qc2 0-1

[Event "538, Maskva 52/"]
[Site "538, Maskva 52/"]
[Date "1991.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Vladimir Bagirov"]
[Black "Nikolai V Krogius"]
[ECO "E20"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "38"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.f3 d5 5.a3 Bd6 6.e4 c5 7.dxc5
Bxc5 8.b4 Bxg1 9.Rxg1 a5 10.cxd5 axb4 11.Nb5 O-O 12.dxe6 Qxd1+
13.Kxd1 Bxe6 14.Bb2 Nc6 15.Bd3 Nd7 16.axb4 Nxb4 17.Rxa8 Rxa8
18.Bb1 Ba2 19.Kd2 Bxb1 1/2-1/2

[Event "Moscow Veterans"]
[Site "Moscow Veterans"]
[Date "1991.??.??"]
[EventDate "?"]
[Round "1"]
[Result "1-0"]
[White "Efim Geller"]
[Black "Nikolai V Krogius"]
[ECO "C84"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "117"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3
O-O 8.a4 b4 9.c3 d6 10.h3 Rb8 11.d4 Na5 12.Bc2 bxc3 13.bxc3
Nd7 14.Nbd2 c5 15.Nf1 cxd4 16.cxd4 Nc6 17.Ne3 exd4 18.Nd5 Bf6
19.Nxf6+ Qxf6 20.Bg5 Qg6 21.e5 Qe6 22.Bf4 Qc4 23.Bxh7+ Kxh7
24.Rc1 Qb3 25.Ng5+ Kg6 26.Rxc6 Qxd1 27.Rxd1 Rb6 28.Rxd6+ Rxd6
29.exd6 Nc5 30.Rxd4 Bd7 31.a5 Nb3 32.Rd3 Rb8 33.Nf3 f6 34.Bd2
Rb5 35.Nd4 Nxd4 36.Rxd4 Kf5 37.f4 Ke6 38.Bb4 Bc6 39.Kf2 Kd7
40.g4 Rb8 41.h4 f5 42.Kg3 fxg4 43.Kxg4 g6 44.Kg5 Rh8 45.f5
gxf5 46.h5 Ke6 47.h6 Rg8+ 48.Kh4 Bd7 49.Bc3 Rg1 50.Rd3 Rg4+
51.Kh3 Rg6 52.Bd2 Kf7 53.Bf4 Rg4 54.Re3 Rxf4 55.Re7+ Kg8
56.Rxd7 Rd4 57.Rg7+ Kf8 58.d7 f4 59.Rh7 1-0

[Event "It (seniors)"]
[Site "Moscow (Russia)"]
[Date "1991.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Aivars Gipslis"]
[Black "Nikolai V Krogius"]
[ECO "C15"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "29"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.Ne2 dxe4 5.a3 Be7 6.Nxe4 Nf6 7.Qd3
O-O 8.Bf4 Nbd7 9.O-O-O Nxe4 10.Qxe4 c5 11.Nc3 Nf6 12.Qe1 cxd4
13.Be5 Qa5 14.Rxd4 Rd8 15.Rxd8+ 1/2-1/2

[Event "World Senior's ch Bad Worishofen"]
[Site "07"]
[Date "1991.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Ludek Pachman"]
[ECO "E04"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "24"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.g3 dxc4 5.Bg2 Bb4+ 6.Bd2 a5 7.O-O
Nc6 8.Bc3 O-O 9.Nbd2 e5 10.dxe5 Ng4 11.Qc2 Bxc3 12.Qxc3 Ngxe5
1/2-1/2

[Event "Moscow Veterans"]
[Site "Moscow Veterans"]
[Date "1991.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Vasily Smyslov"]
[Black "Nikolai V Krogius"]
[ECO "A14"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "105"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. d4 dxc4
7. Qc2 a6 8. a4 Nc6 9. Qxc4 Bd7 10. Bd2 Ne4 11. Bf4 Nd6
12. Qc3 Rb8 13. Rd1 a5 14. Nbd2 Nb4 15. Ne5 g5 16. Be3 Nf5
17. Ndc4 Nxe3 18. Nxe3 c6 19. Nxd7 Qxd7 20. Nc4 Qc7 21. e4
Rbd8 22. Rd2 Bf6 23. e5 Be7 24. Qf3 f5 25. exf6 Bxf6 26. Qg4
Kh8 27. Rad1 b5 28. Ne3 Qf7 29. axb5 cxb5 30. Qe2 Rb8 31. Ng4
Nd5 32. Re1 Rb6 33. Ne5 Qg7 34. Rc2 Nb4 35. Rc5 Rd6 36. Rxb5
Rxd4 37. Rxa5 Bxe5 38. Qxe5 Qxe5 39. Raxe5 Nd3 40. R5e4 e5
41. Rxd4 exd4 42. Rd1 Nxb2 43. Rxd4 h6 44. Be4 Rf6 45. f3 Ra6
46. Kg2 Kg7 47. Kh3 Na4 48. Rc4 Nb2 49. Rc7+ Kf8 50. Kg4 Nd1
51. Kh5 Ne3 52. Rc3 Nf1 53. Bd3 1-0

[Event "Veterans Tournament"]
[Site "Moscow"]
[Date "1991.??.??"]
[EventDate "?"]
[Round "3"]
[Result "1/2-1/2"]
[White "Samuel Reshevsky"]
[Black "Nikolai V Krogius"]
[ECO "E33"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "36"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 Nc6 5.Nf3 d6 6.a3 Bxc3+
7.Qxc3 Qe7 8.b4 O-O 9.Bb2 Re8 10.b5 Nb8 11.g3 b6 12.Bg2 Bb7
13.O-O Nbd7 14.a4 a6 15.Rfc1 Rec8 16.e3 h6 17.Ba3 Qe8 18.Bb4
Be4 1/2-1/2

[Event "Wch Seniors 01st"]
[Site "Bad Woerishofen"]
[Date "1991.11.10"]
[EventDate "?"]
[Round "2"]
[Result "0-1"]
[White "E Ladanyike-Karakas"]
[Black "Nikolai V Krogius"]
[ECO "B88"]
[WhiteElo "2122"]
[BlackElo "?"]
[PlyCount "106"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Bb3
Be7 8.Be3 O-O 9.O-O a6 10.f4 Qc7 11.f5 e5 12.Nxc6 bxc6 13.g4
d5 14.exd5 cxd5 15.Nxd5 Nxd5 16.Bxd5 Rb8 17.Rb1 Rd8 18.c4 Bb7
19.Qf3 Bxd5 20.cxd5 Bc5 21.Rfd1 Bxe3+ 22.Qxe3 Qc4 23.Qf3 Qxa2
24.f6 Rxb2 25.Rxb2 Qxb2 26.fxg7 Kxg7 27.h3 Rd6 28.Qd3 a5
29.Rd2 Qb4 30.Kg2 a4 31.Ra2 Qb3 32.Qxb3 axb3 33.Rb2 Rb6 34.Kf3
Rb4 35.Ke3 Kf6 36.Kd3 Rd4+ 37.Ke3 Rb4 38.Kd3 Rd4+ 39.Ke3 h5
40.gxh5 Rh4 41.Kd3 Rxh5 42.Kc4 Rxh3 43.Kc5 Ke7 44.Kc4 Rh4+
45.Kxb3 Rd4 46.Kc3 Rxd5 47.Rh2 Ke6 48.Rh5 e4 49.Rh4 f5 50.Kc4
Rd8 51.Rh7 Ke5 52.Rh4 e3 53.Rh7 Ke4 0-1

[Event "Worishofen"]
[Site "Worishofen"]
[Date "1992.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Efim Geller"]
[Black "Nikolai V Krogius"]
[ECO "C92"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "114"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3
d6 8.c3 O-O 9.h3 Nd7 10.d4 Bf6 11.a4 Na5 12.Ba2 c5 13.dxc5
dxc5 14.Bd5 Rb8 15.axb5 axb5 16.Be3 Bb7 17.Bxb7 Nxb7 18.Na3
Na5 19.b4 cxb4 20.cxb4 Nc4 21.Nxc4 bxc4 22.Ra7 Nb6 23.Bc5 Re8
24.Qa1 Qd3 25.Ra6 Nd7 26.Rd1 Nxc5 27.Rxd3 Nxd3 28.Rc6 Rxb4
29.Nd2 Nb2 30.Qa5 Rbb8 31.Nxc4 Nxc4 32.Rxc4 h6 33.g3 Rec8
34.Rxc8+ Rxc8 35.Kg2 Re8 36.Qb5 Kf8 37.Qc6 Re6 38.Qc8+ Re8
39.Qf5 Kg8 40.h4 Re6 41.h5 Be7 42.Qf3 Bf6 43.Qd3 Re8 44.Qb5
Kf8 45.Qc5+ Kg8 46.f4 Re6 47.Qc8+ Kh7 48.Kf3 Re7 49.Qf8 Rc7
50.Kg4 Re7 51.Kf5 Ra7 52.fxe5 Ra5 53.Qxf7 Rxe5+ 54.Kf4 Rg5
55.Qe8 Bc3 56.g4 Bf6 57.Qb8 Bd4 1/2-1/2

[Event "?"]
[Site "?"]
[Date "1992.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1-0"]
[White "Efim Geller"]
[Black "Nikolai V Krogius"]
[ECO "C07"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "187"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.Ngf3 cxd4 5.exd5 Qxd5 6.Bc4 Qd6
7.O-O Nc6 8.Ne4 Qd8 9.Qe2 Be7 10.Rd1 Nf6 11.c3 O-O 12.Nxd4
Nxd4 13.Rxd4 Qc7 14.Bd3 e5 15.Rc4 Qd8 16.Bg5 Nxe4 17.Bxe7 Qxe7
18.Rxe4 f6 19.Re3 g5 20.Re1 Be6 21.h4 g4 22.Bc4 Kh8 23.Rd1
Rad8 24.Bxe6 Qxe6 25.Red3 Rxd3 26.Rxd3 Qxa2 27.Rd7 Rf7 28.Rd8+
Kg7 29.Qxg4+ Kh6 30.Rd6 Qb1+ 31.Kh2 Qg6 32.Qe2 Kg7 33.Rd3 Qf5
34.Qd2 h6 35.Rg3+ Kh7 36.Qd5 Qh5 37.Qd3+ f5 38.Qd8 Rg7
39.Rxg7+ Kxg7 40.Qe7+ Kg8 41.Qe6+ Kh7 42.Qd7+ Kg8 43.Qc8+ Kf7
44.Qxb7+ Ke6 45.Qc6+ Ke7 46.Qc5+ Ke6 47.Qc4+ Kd6 48.g3 f4
49.Qa6+ Kd5 50.Qd3+ Kc6 51.Kg2 fxg3 52.Kxg3 Kc5 53.b4 Kb6
54.c4 Qe8 55.Qd6+ Kb7 56.Qd5+ Kc7 57.Kh3 Qe7 58.b5 Qf6 59.Qe4
Qxf2 60.Qxe5+ Kb6 61.Qd6+ Kb7 62.Qc6+ Kb8 63.Qg2 Qf5+ 64.Kh2
Kc7 65.Qg7+ Kb8 66.Qd4 Qe6 67.Kg3 h5 68.Kf4 Qg4+ 69.Ke5 Qg7+
70.Kd5 Qd7+ 71.Kc5 Qf5+ 72.Qd5 Qc8+ 73.Kb4 Qf8+ 74.Qc5 Qe8
75.Qg5 Kc7 76.Qf4+ Kb7 77.Qf3+ Kc7 78.Qg3+ Kb7 79.c5 Qd8
80.Qf3+ Kb8 81.Qf4+ Kc8 82.Kc4 Qd1 83.Qf5+ Kc7 84.Qe5+ Kc8
85.Qe6+ Kc7 86.Qc6+ Kd8 87.Qd6+ Qxd6 88.cxd6 Ke8 89.Kd5 Kd7
90.Ke5 Kd8 91.Ke6 Ke8 92.d7 Kd8 93.Kd6 a5 94.b6 1-0

[Event "San Martin (Argentina)"]
[Site "It"]
[Date "1993.??.??"]
[EventDate "?"]
[Round "11"]
[Result "1/2-1/2"]
[White "Hugo Spangenberg"]
[Black "Nikolai V Krogius"]
[ECO "C29"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "81"]

1.e4 e5 2.Nc3 Nf6 3.f4 d5 4.fxe5 Nxe4 5.Nf3 Nc6 6.d3 Nxc3
7.bxc3 d4 8.Be2 dxc3 9.Be3 Be7 10.O-O Nb4 11.Bd4 Nd5 12.Qe1
O-O 13.Bd1 Be6 14.Bxc3 Nxc3 15.Qxc3 c5 16.a4 b6 17.Kh1 a6
18.Nd2 Qd4 19.Qxd4 cxd4 20.Rb1 Rab8 21.Nc4 b5 22.axb5 Rxb5
23.Ra1 a5 24.Nxa5 Ra8 25.Nb3 Rxa1 26.Nxa1 Bb4 27.Nb3 Bc3
28.Bf3 Rxe5 29.Nc1 g5 30.h3 Rc5 31.Nb3 Rb5 32.g4 Kg7 33.Kg2 f5
34.gxf5 Bxf5 35.Rf2 Re5 36.Nc1 Be1 37.Re2 Rxe2+ 38.Nxe2 Bc3
39.Bg4 Bg6 40.Ng3 Kf6 41.Ne4+ 1/2-1/2

[Event "Wch Seniors 03rd"]
[Site "Bad Wildbad"]
[Date "1993.??.??"]
[EventDate "?"]
[Round "1"]
[Result "0-1"]
[White "Carsten Herrmann"]
[Black "Nikolai V Krogius"]
[ECO "E92"]
[WhiteElo "2026"]
[BlackElo "2485"]
[PlyCount "90"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Nf3 e5 7.dxe5
dxe5 8.Qxd8 Rxd8 9.Bg5 Re8 10.Bxf6 Bxf6 11.Nd5 Bd8 12.O-O c6
13.Nb4 Nd7 14.Nd3 Bc7 15.Rad1 f5 16.Nd2 Nf6 17.f3 Be6 18.Nc5
Bb6 19.b4 a5 20.a3 Bxc5+ 21.bxc5 Nd7 22.exf5 gxf5 23.Rb1 Nxc5
24.Rfe1 Bf7 25.Nf1 Rad8 26.Red1 Kg7 27.Ne3 Bg6 28.Rxd8 Rxd8
29.Rd1 Rxd1+ 30.Bxd1 Kf6 31.Kf2 f4 32.Ng4+ Ke6 33.Ke1 h5
34.Nf2 Nd3+ 35.Nxd3 Bxd3 36.Bb3 Kd6 37.Kd2 Bf1 38.g3 fxg3
39.hxg3 Kc5 40.Kc3 Be2 41.f4 exf4 42.gxf4 h4 43.f5 h3 44.f6
Bh5 45.Bc2 h2 0-1

[Event "Wch Seniors"]
[Site "Bad Wildbad, Germany"]
[Date "1993.??.??"]
[EventDate "?"]
[Round "8"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Bukhuti Gurgenidze"]
[ECO "A07"]
[WhiteElo "2465"]
[BlackElo "2370"]
[PlyCount "58"]

1.Nf3 b6 2.g3 Bb7 3.Bg2 e5 4.c4 g6 5.O-O Bg7 6.Nc3 Ne7 7.e4
Nbc6 8.Nd5 O-O 9.d3 d6 10.Be3 Qd7 11.Qd2 Nd8 12.d4 f6 13.Rad1
Nf7 14.Rfe1 Rae8 15.b4 c6 16.Nc3 Qc8 17.dxe5 dxe5 18.c5 b5
19.Qc2 Qe6 20.Nd2 Bc8 21.Nb3 Rd8 22.Na5 Rxd1 23.Rxd1 Rd8 24.a4
Rxd1+ 25.Qxd1 a6 26.h3 Kf8 27.h4 Ke8 28.axb5 axb5 29.h5 Qd7
1/2-1/2

[Event "St Petersburg op"]
[Site "St Petersburg"]
[Date "1994.??.??"]
[EventDate "?"]
[Round "5"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Alexey Korotylev"]
[ECO "E67"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "62"]

1.Nf3 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.d4 Nbd7 7.Nc3
e5 8.h3 Re8 9.e4 exd4 10.Nxd4 Nc5 11.Re1 Bd7 12.Nb3 Na4
13.Nxa4 Bxa4 14.Qc2 Nd7 15.Bd2 Re7 16.Bc3 Qf8 17.Bxg7 Qxg7
18.Qd2 Rae8 19.Re3 b6 20.Nd4 Nc5 21.Rae1 a5 22.a3 Bd7 23.b4
axb4 24.axb4 Ne6 25.Nf5 gxf5 26.exf5 Qf6 27.fxe6 Rxe6 28.h4
Rxe3 29.Rxe3 Rxe3 30.Qxe3 Qa1+ 31.Kh2 Qe5 1/2-1/2

[Event "St. Petersburg (Russia)"]
[Site "St. Petersburg (Russia)"]
[Date "1995.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Alexey Suetin"]
[Black "Nikolai V Krogius"]
[ECO "C84"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "37"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3
O-O 8.a4 Bb7 9.d3 d6 10.c3 Nb8 11.Nbd2 Nbd7 12.Bc2 Re8 13.Nf1
Bf8 14.Ng3 g6 15.Bg5 Bg7 16.Qd2 Nc5 17.d4 Nxa4 18.Bxa4 bxa4
19.Rxa4 1/2-1/2

[Event "St Petersburg"]
[Site "St Petersburg"]
[Date "1995.??.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Nikolai V Krogius"]
[Black "Mark Taimanov"]
[ECO "E11"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "93"]

1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 a5 5.Nc3 O-O 6.e3 d6 7.Qc2
Nc6 8.Bd3 e5 9.dxe5 dxe5 10.a3 Re8 11.Ng5 Bxc3 12.Bxc3 h6
13.Ne4 Nd4 14.Qd1 Bf5 15.Nxf6+ Qxf6 16.Bxf5 Nxf5 17.O-O Nd6
18.b3 a4 19.Bb4 Red8 20.bxa4 c5 21.Bc3 Nxc4 22.Qb3 Qa6 23.Rfc1
b6 24.Be1 Nd2 25.Bxd2 Rxd2 26.h3 Rad8 27.Qc3 R8d5 28.Rab1 Qe2
29.Rf1 Rc2 30.Qb3 Rdd2 31.a5 bxa5 32.Qb8+ Kh7 33.Qxe5 Qd3
34.e4 Qd7 35.Rbc1 Rxf2 36.Rxc2 Rxc2 37.Kh2 Qe6 38.Qxe6 fxe6
39.Rf7 Rc4 40.Rc7 Kg6 41.Kg3 Rxe4 42.Rxc5 Re3+ 43.Kf4 Rxa3
44.Ke5 Rg3 45.Rc2 Re3+ 46.Kd4 Rb3 47.Ke5 0-1

[Event "St Petersburg Seniors"]
[Site "St Petersburg"]
[Date "1995.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Evgeni Vasiukov"]
[Black "Nikolai V Krogius"]
[ECO "A07"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "80"]

1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.d3 c5 6.e4 Nc6 7.c3 d6
8.Nbd2 Rb8 9.a4 e5 10.Nc4 Ne8 11.Ng5 h6 12.Nh3 Nc7 13.f4 exf4
14.Nxf4 Ne5 15.Ne3 b6 16.d4 Nc6 17.Nc2 Bb7 18.Rb1 a5 19.Be3
Kh7 20.Qd2 cxd4 21.cxd4 Ba6 22.Rfc1 d5 23.e5 b5 24.axb5 Bxb5
25.Na3 Nb4 26.Rc5 Bd7 27.Rf1 Ne6 28.Rcc1 Nxf4 29.Bxf4 Rc8
30.Rxc8 Qxc8 31.Rc1 Qd8 32.Nc2 Nxc2 33.Rxc2 Be6 34.Rc5 a4
35.h4 Qd7 36.Qc2 h5 37.Ra5 Rb8 38.Qxa4 Qxa4 39.Rxa4 Rxb2
40.Ra5 Rb1+ 1/2-1/2

[Event "Cappelle Open 11th"]
[Site "Cappelle la Grande FRA"]
[Date "1995.??.??"]
[EventDate "?"]
[Round "8"]
[Result "1/2-1/2"]
[White "Artashes Minasian"]
[Black "Nikolai V Krogius"]
[ECO "A01"]
[WhiteElo "2540"]
[BlackElo "2480"]
[PlyCount "114"]

1. b3 Nf6 2. Bb2 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O c5
7. c4 Nc6 8. cxd5 Nxd5 9. Na3 b6 10. Nc4 Ba6 11. Rc1 Rc8
12. d3 Bf6 13. Qd2 Bxb2 14. Qxb2 Qf6 15. Qd2 Rfd8 16. Ng5 Qe7
17. f4 h6 18. Nf3 Rc7 19. Kh1 Nf6 20. Nfe5 Bb7 21. Qe3 b5
22. Nxc6 Bxc6 23. Bxc6 bxc4 24. Bb5 cxb3 25. axb3 Qd6 26. Qf3
Nd5 27. Ra1 Nb6 28. Kg2 Qe7 29. Ra6 Rd4 30. Bc4 g6 31. Rfa1 h5
32. Qe3 Rb7 33. R1a5 Rc7 34. Qe5 Rd8 35. Ra1 Nd5 36. Qe4 Kg7
37. Qe5+ Kg8 38. Qe4 Kg7 39. Qf3 Nb4 40. R6a4 Nc2 41. Rc1 Nd4
42. Qe4 Qf6 43. Rca1 Rdd7 44. R1a2 Rb7 45. Ra5 Nxb3 46. Bxb3
Rxb3 47. Rxc5 Rb2 48. Ra4 Rbb7 49. Rc8 Qb2 50. Ra8 Qb5 51. Kh3
Qc5 52. Rc4 Qd5 53. Rcc8 Qxe4 54. dxe4 Rdc7 55. Rd8 Rd7
56. Rdc8 Rdc7 57. Rd8 Rd7 1/2-1/2

[Event "Ch World (seniors)"]
[Site "Bad Liebenzell (Germany)"]
[Date "1996.??.??"]
[EventDate "?"]
[Round "10"]
[Result "1/2-1/2"]
[White "Nikolai V Krogius"]
[Black "Alexey Suetin"]
[ECO "D02"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "26"]

1.Nf3 d5 2.d4 Bf5 3.c4 e6 4.Nc3 c6 5.e3 Nd7 6.Bd3 Bxd3 7.Qxd3
Ngf6 8.O-O Be7 9.e4 dxe4 10.Nxe4 O-O 11.b3 Nxe4 12.Qxe4 Nf6
13.Qe2 Qa5 1/2-1/2

[Event "Wch Seniors"]
[Site "Bad Liebenzell"]
[Date "1996.??.??"]
[EventDate "?"]
[Round "9"]
[Result "1/2-1/2"]
[White "Evgeni Vasiukov"]
[Black "Nikolai V Krogius"]
[ECO "C50"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "42"]

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.O-O Nf6 5.d3 d6 6.c3 Bb6 7.Nbd2
O-O 8.Bb3 Ne7 9.Nc4 Ng6 10.Bc2 Re8 11.Re1 c6 12.Nxb6 axb6
13.h3 h6 14.d4 Qc7 15.Bd2 Bd7 16.c4 c5 17.d5 Qd8 18.Kh2 Nh7
19.g3 Rf8 20.Be3 Qc8 21.Ng1 f5 1/2-1/2

