[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "1"]
[White "Portisch, Lajos"]
[Black "Keres, Paul"]
[Result "1-0"]
[WhiteElo "2645"]
[BlackElo "2605"]
[ECO "D41"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 c5 4.g3 d5 5.cxd5 Nxd5 6.Bg2 Be7 7.O-O O-O 8.d4 Nc6
9.Nxd5 exd5 10.Be3 Bf6 11.dxc5 Bxb2 12.Rb1 Bf6 13.Ne1 d4 14.Bf4 Qa5 15.Nd3 Qxa2
16.Bd6 Re8 17.Nf4 Bf5 18.Rxb7 Be4 19.Bxe4 Rxe4 20.Qb1 Qxb1 21.Rfxb1 Ree8
22.Rc7 Rec8 23.Rbb7 Rxc7 24.Rxc7 Na5 25.Nd5 Bd8 26.Ne7+ Bxe7 27.Bxe7 h6 28.c6 Rb8
29.Bd6 Kh7 30.Rxf7 Rb1+ 31.Kg2 Nxc6 32.Rc7 Nd8 33.Rxa7 Rb5 34.f4 Nb7 35.Be5 Rb4
36.Bxd4 g5 37.Kf3 Kg6 38.Ra6+ Kf7 39.e3  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "1"]
[White "Biyiasas, Peter"]
[Black "Kagan, Shimon"]
[Result "1-0"]
[WhiteElo "2395"]
[BlackElo "2405"]
[ECO "B31"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.Re1 Nf6 6.e5 Nd5 7.Nc3 Nc7 8.Bxc6 dxc6
9.Ne4 Ne6 10.d3 h6 11.Be3 b6 12.Qd2 Bb7 13.a4 a5 14.h4 Qc7 15.Bf4 O-O-O 16.Bg3 Ba6
17.Rad1 Qd7 18.Qc1 Kb7 19.c3 Ka7 20.d4 c4 21.Qc2 Qd5 22.Ned2 c5 23.Nf1 cxd4
24.cxd4 Qa8 25.Ne3 Bb7 26.Qxc4 Rc8 27.Qb3 Bxf3 28.gxf3 Qxf3 29.d5 Nf4 30.Bxf4 Qxf4
31.Ng2 Qc4 32.Qf3 Rhf8 33.b3 Qc3 34.Rd3 Qb4 35.d6 e6 36.d7 Rb8 37.d8=Q Rfxd8
38.Rxd8 Rxd8 39.Qxf7+ Ka6 40.Qxg7  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "1"]
[White "Hort, Vlastimil"]
[Black "Geller, Efim P"]
[Result "1/2-1/2"]
[WhiteElo "2610"]
[BlackElo "2585"]
[ECO "A39"]

1.c4 c5 2.Nf3 g6 3.g3 Bg7 4.Bg2 Nc6 5.Nc3 Nf6 6.d4 cxd4 7.Nxd4 O-O 8.O-O Nxd4
9.Qxd4 d6 10.Qd3 a6 11.Bd2 Bf5 12.e4 Be6 13.b3 Nd7 14.a4 Nc5 15.Qc2 Rc8 16.Rac1  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "1"]
[White "Ivkov, Borislav"]
[Black "Mecking, Henrique"]
[Result "1/2-1/2"]
[WhiteElo "2535"]
[BlackElo "2575"]
[ECO "B92"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be6 8.O-O Be7
9.f4 Qc7 10.f5 Bc4 11.a4 O-O 12.Kh1 Nbd7 13.a5 Bb5 14.Nxb5 axb5 15.Bg5 b4
16.Bd3 Nc5 17.Qe1 Nxb3 18.cxb3 Rxa5 19.Rxa5 Qxa5 20.Bc4 Rc8 21.Qe2 h6 22.Bxf6 Bxf6
23.g3 Rc5 24.Kg2 b5 25.Bd5 Qc7 26.Kh3 Qa7 27.Qd2 Qa5 28.Qd1 Kf8 29.Qh5 Rc7
30.Rc1 Bg5 31.Rxc7 Qxc7 32.Qe2 Qa5 33.Qh5 Qc7 34.Qe2 Qa5 35.Qh5  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "1"]
[White "Panno, Oscar"]
[Black "Gheorghiu, Florin"]
[Result "1/2-1/2"]
[WhiteElo "2580"]
[BlackElo "2530"]
[ECO "A06"]

1.Nf3 c5 2.b3 d5 3.e3 Nf6 4.Bb2 e6 5.c4 dxc4 6.bxc4 Nc6 7.Be2 Be7 8.O-O O-O
9.Ne5 Nxe5 10.Bxe5 Bd7 11.Bf3 Qc8 12.d3 Bc6  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "1"]
[White "Reshevsky, Samuel Herman"]
[Black "Polugaevsky, Lev"]
[Result "1/2-1/2"]
[WhiteElo "2565"]
[BlackElo "2640"]
[ECO "E17"]

1.Nf3 Nf6 2.c4 e6 3.g3 b6 4.Bg2 Bb7 5.d4 Be7 6.Nc3 Ne4 7.Bd2 d5 8.cxd5 exd5
9.Ne5 Nxd2 10.Qxd2 O-O 11.O-O c6 12.e4 dxe4 13.Bxe4 f6 14.Nc4 f5 15.Bg2 Ba6
16.b3 f4 17.Qe2 Kh8 18.a4 Bb4 19.Na2 Bd6 20.Rfe1 Qc7 21.Qe4 Bxc4 22.bxc4 a5
23.Nc3 Bb4 24.Rac1 Ra7 25.Qe6 Qd8 26.Re4 Re7 27.Qh3 f3  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "1"]
[White "Savon, Vladimir A"]
[Black "Bronstein, David I"]
[Result "1/2-1/2"]
[WhiteElo "2570"]
[BlackElo "2585"]
[ECO "C99"]

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 cxd4 12.cxd4 Bb7 13.Nbd2 Qc7 14.Nf1 Rac8 15.Re2 Nh5
16.Bd3 Nc6 17.Rc2 Qd7 18.d5 Nb4 19.Rxc8 Rxc8 20.Be2 Nc2 21.Rb1 f5 22.Nxe5 dxe5
23.Bxh5 g6 24.Be2 Nd4 25.f3 f4 26.Bd2 Bc5 27.Kh1 Ba7 28.Bd3 Qd6 29.Nh2 h5
30.Rc1 Kf7 31.Ba5 Qd7 32.Nf1 g5 33.Nd2 Kf6 34.Rxc8 Qxc8 35.Nb3 Nxb3 36.axb3 Qc5
37.Be2 Bc8 38.Bd8+ Kg6 39.d6 h4 40.Be7 Bd7 41.Bd8 Be6 42.b4 Qxb4 43.d7 Bxd7
44.Bc7 Qd4 45.Bxe5 Qxe5 46.Qxd7 Qc5 47.Qd1 Qd4 48.Qb1 Kf6 49.Kh2 Ke5 50.Bd3 Bc5
51.Bc2 Qf2 52.Bb3 Be3 53.Bd5 Kd6 54.b4 Bd2 55.Qa1 Qg3+ 56.Kh1 Qe1+ 57.Qxe1 Bxe1
58.Bb7 Bxb4 59.Bxa6 Kc6 60.Kg1  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "1"]
[White "Tan Lian Ann"]
[Black "Smyslov, Vassily"]
[Result "0-1"]
[WhiteElo "2365"]
[BlackElo "2600"]
[ECO "B07"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Bc4 Bg7 5.Qe2 c6 6.e5 Nd5 7.Bd2 O-O 8.Bb3 a5
9.a4 dxe5 10.dxe5 Na6 11.Nf3 Nc5 12.Bxd5 cxd5 13.Be3 Ne4 14.Bd4 Nxc3 15.Bxc3 b6
16.Qd2 Ba6 17.h4 Qd7 18.h5 Qg4 19.O-O-O Qxa4 20.Kb1 Rfc8 21.Rh4 Qe8 22.hxg6 hxg6
23.Rdh1 Rc4 24.Rh7 Qf8 25.e6 Rxc3 26.exf7+ Qxf7 27.bxc3 Rd8 28.Ne5 Qf6 29.f4 d4
30.g4 Bb7 31.R1h3 Rd5 32.cxd4 Qd6 33.Qh2 Qb4+ 34.Ka2 Qa4+ 35.Ra3 Qxd4 36.Rxg7+ Kxg7
37.Rh3  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "2"]
[White "Gheorghiu, Florin"]
[Black "Hort, Vlastimil"]
[Result "1/2-1/2"]
[WhiteElo "2530"]
[BlackElo "2610"]
[ECO "B52"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.c4 Nc6 6.O-O Nf6 7.Nc3 g6 8.d4 cxd4
9.Nxd4 Bg7 10.Nde2 O-O 11.f3 e6 12.Bg5 h6 13.Be3 Rad8 14.Qd2 d5 15.cxd5 exd5
16.Bxh6 dxe4 17.Qe3 exf3 18.Bxg7 Kxg7 19.Qxf3 Qe7  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "2"]
[White "Bronstein, David I"]
[Black "Biyiasas, Peter"]
[Result "1/2-1/2"]
[WhiteElo "2585"]
[BlackElo "2395"]
[ECO "C90"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.d3 b5 6.Bb3 Be7 7.O-O O-O 8.c3 d6
9.Nbd2 Na5 10.Bc2 c5 11.Re1 Nc6 12.Nf1 Re8 13.a4 Rb8 14.axb5 axb5 15.Bb3 Qc7
16.Bg5 Nd7 17.Be3 Nb6 18.Ng3 Nd8 19.Nd2 Be6 20.Bxe6 Nxe6 21.Qb3 Qc6 22.Nf3 Ra8
23.Rad1 Bf8 24.d4 Nc7 25.d5 Qb7 26.Nd2 Nd7 27.Ne2 f5 28.f3 f4 29.Bf2 Ra4
30.Qc2 Rea8 31.Nc1 Be7 32.Nd3 Bd8 33.b3 Ra2 34.Qb1 Ne8 35.Nc1 R2a5 36.Qd3 Bb6
37.Qf1 Nc7 38.g3 fxg3 39.hxg3 Rf8 40.Qh3 Rf7 41.Kg2 Ra8 42.f4 c4 43.Bxb6  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "2"]
[White "Geller, Efim P"]
[Black "Tan Lian Ann"]
[Result "1-0"]
[WhiteElo "2585"]
[BlackElo "2365"]
[ECO "B01"]

1.e4 d5 2.exd5 Nf6 3.d4 Nxd5 4.Nf3 Bg4 5.Be2 Nc6 6.O-O g6 7.c4 Nb6 8.d5 Bxf3
9.Bxf3 Ne5 10.Be2 Bg7 11.Nc3 c6 12.Qb3 O-O 13.Rd1 cxd5 14.c5 Nbd7 15.Qxd5 e6
16.Qxb7 Nxc5 17.Rxd8 Nxb7 18.Rxa8 Rxa8 19.Be3 Nd6 20.Bc5 Nec4 21.Rc1 Rc8
22.b4 Nb6 23.Bxd6 Rxc3 24.Rxc3 Bxc3 25.Kf1 Nd5 26.b5 Bd4 27.a4 Bb6 28.Bd3 f5
29.Bc4 Kf7 30.Bxd5 exd5 31.Ke2 Ke6 32.Bf4 d4 33.Kd3 Kd5 34.Bc1 Ba5 35.Bb2 Bb6
36.f3 h5 37.h4 Bc5 38.a5 Bb4 39.b6 axb6 40.a6 Kc6 41.Bxd4 Be1 42.a7 Kb7 43.Bxb6 Bg3
44.Ke2 Be5 45.Bf2 Bd6 46.Kd3 Be7 47.Kc4 f4 48.Kd5 Bd8 49.Ke5 g5 50.hxg5 Bxg5
51.Kf5 Bh6 52.Bc5  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "2"]
[White "Smyslov, Vassily"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[WhiteElo "2600"]
[BlackElo "2645"]
[ECO "A29"]

1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.g3 Bb4 5.Bg2 O-O 6.O-O e4 7.Ng5 Bxc3 8.dxc3 Re8
9.f3 d6 10.b3 Bd7 11.Nh3 exf3 12.exf3 Ne7 13.Bg5 Nf5 14.Qd3 h6 15.Bd2 Ne7
16.Rfe1 Bf5 17.Qf1 Qd7 18.g4 Bh7 19.Qf2 a5 20.Nf4 Ng6 21.h4 Nxf4 22.Bxf4 Qc6
23.Rxe8+ Rxe8 24.Re1 Rxe1+ 25.Qxe1 Kf8 26.g5 Nh5 27.Be3 hxg5 28.hxg5 Qe8
29.Qd2 Ng3 30.c5 dxc5 31.Bxc5+ Kg8 32.Bf2 Nf5 33.c4 Bg6 34.Qxa5 Qd8 35.f4 Qd1+
36.Qe1 Qg4 37.Qd2 Nd6 38.Kf1 Be4 39.Bxe4 Nxe4 40.Qe3 Qd1+ 41.Be1 Nd6  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "2"]
[White "Hug, Werner"]
[Black "Ivkov, Borislav"]
[Result "1/2-1/2"]
[WhiteElo "2445"]
[BlackElo "2535"]
[ECO "C68"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.Nc3 f6 6.d4 exd4 7.Nxd4 c5 8.Nde2 Qxd1+
9.Nxd1 Bd7 10.Bf4 O-O-O 11.Ne3 Bc6 12.f3 Ne7 13.Rd1 Rxd1+ 14.Kxd1 g6 15.Kc1 Bg7
16.h4 Re8 17.Rd1  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "2"]
[White "Kagan, Shimon"]
[Black "Ljubojevic, Ljubomir"]
[Result "0-1"]
[WhiteElo "2405"]
[BlackElo "2570"]
[ECO "A25"]

1.c4 g6 2.g3 Bg7 3.Bg2 e5 4.Nc3 Ne7 5.e3 Nbc6 6.Rb1 a5 7.a3 b6 8.Nge2 Nf5
9.d3 Bb7 10.Nd5 O-O 11.Nec3 Nd6 12.b4 axb4 13.axb4 Ne7 14.Qb3 Nxd5 15.Nxd5 Ra7
16.O-O Kh8 17.Bb2 f5 18.c5 bxc5 19.bxc5 Nf7 20.Ra1 Rxa1 21.Rxa1 Bc6 22.Ra7 Ng5
23.f4 exf4 24.Bxg7+ Kxg7 25.gxf4 Ne6 26.Qc3+ Kh6 27.d4 g5 28.Ra6 Bb7 29.Ra7 Bxd5
30.Bxd5 gxf4 31.exf4 Nxf4 32.Bc4 Rg8+ 33.Kf1 Rg2 34.Qe3 Qg5 35.Rxc7 Rxh2
36.Qf3 Qh4 37.Kg1 Rg2+ 38.Qxg2 Nxg2 39.Kxg2 Qg4+ 40.Kh1 Qh3+  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "2"]
[White "Keres, Paul"]
[Black "Reshevsky, Samuel Herman"]
[Result "1/2-1/2"]
[WhiteElo "2605"]
[BlackElo "2565"]
[ECO "C95"]

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 Nb8 10.d4 Nbd7 11.Nbd2 Bb7 12.Bc2 Re8 13.a4 c5 14.Nf1 Bf8 15.Ng3 g6
16.b3 Bg7 17.dxe5 Nxe5 18.Nxe5 dxe5 19.Be3 Qxd1 20.Rexd1 Bf8 21.f3 Rec8 22.Bd3 Bc6
23.Nf1 c4 24.axb5 Bxb5  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "2"]
[White "Mecking, Henrique"]
[Black "Panno, Oscar"]
[Result "1/2-1/2"]
[WhiteElo "2575"]
[BlackElo "2580"]
[ECO "C67"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Be7 6.Qe2 Nd6 7.Bxc6 bxc6 8.dxe5 Nb7
9.c4 O-O 10.Nc3 f6 11.Re1 fxe5 12.Nxe5 Bf6 13.Bf4 Qe8 14.Qc2 Bxe5 15.Bxe5 Qf7
16.c5 d6 17.cxd6 cxd6 18.Bg3 Bf5 19.Qa4 Qd7 20.Rad1 d5 21.f3 Nc5 22.Qa3 Ne6
23.Re5 Bg6 24.Qa4 Nc5 25.Qd4 Ne6 26.Qa4 Nc5 27.Qd4 Ne6 28.Qg4 Rae8 29.Rde1 Nc5
30.Qxd7 Nxd7 31.Re7 Rxe7 32.Rxe7 Rf7 33.Re8+ Rf8 34.Re6 Rf6 35.Rxf6 gxf6
36.Kf2 Bd3 37.Bd6 Kf7 38.Na4 Ke6 39.Bb4 Bb1 40.Nc5+ Nxc5 41.Bxc5  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "2"]
[White "Polugaevsky, Lev"]
[Black "Savon, Vladimir A"]
[Result "1/2-1/2"]
[WhiteElo "2640"]
[BlackElo "2570"]
[ECO "A29"]

1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.g3 Bb4 5.Bg2 O-O 6.O-O e4 7.Ne1 Bxc3 8.dxc3 h6
9.Nc2 Re8 10.Ne3 d6 11.Qc2 Re5 12.Bd2 Bd7 13.f4 exf3 14.exf3 Qc8 15.Rfe1 Re8
16.Nd5 Nxd5 17.Rxe8+ Qxe8 18.cxd5 Ne5 19.c4 Qf8 20.h3 Re8 21.f4 Ng6 22.Bc3 c5
23.Kh2 Qe7 24.Re1 Qd8 25.Be4 Nf8 26.b3 Re7 27.Qd2 Qe8 28.Bd3 f5 29.Rxe7 Qxe7
30.Qe2 Qxe2+ 31.Bxe2 Kf7 32.g4 Nh7  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "3"]
[White "Bronstein, David I"]
[Black "Polugaevsky, Lev"]
[Result "1/2-1/2"]
[WhiteElo "2585"]
[BlackElo "2640"]
[ECO "A29"]

1.c4 Nf6 2.Nc3 e5 3.Nf3 Nc6 4.g3 Nd4 5.Bg2 Nxf3+ 6.Bxf3 Bb4 7.Qb3 a5 8.O-O O-O
9.d3 h6 10.Be3 Bxc3 11.Qxc3 d6 12.c5 Re8 13.cxd6 Qxd6 14.Rfd1 c6 15.Bc5 Qc7
16.Qb3 Bg4 17.Bxg4 Nxg4 18.e4 Nf6 19.f3 Nh7 20.d4 exd4 21.Bxd4 Ng5 22.Bb6 Qe7
23.h4 a4  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "3"]
[White "Biyiasas, Peter"]
[Black "Ljubojevic, Ljubomir"]
[Result "0-1"]
[WhiteElo "2395"]
[BlackElo "2570"]
[ECO "B26"]

1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 e6 6.Be3 Qa5 7.Ne2 Nd4 8.O-O Ne7
9.Nc1 d6 10.Qd2 Bd7 11.Nb3 Qb6 12.Rae1 h5 13.h3 a5 14.Nd1 Qb4 15.Na1 Qxd2
16.Bxd2 a4 17.c3 Ndc6 18.f4 Nc8 19.Nc2 b5 20.a3 Rb8 21.Nf2 b4 22.cxb4 cxb4
23.Nxb4 Nxb4 24.Bxb4 Bxb2 25.Re2 Bd4 26.e5 d5 27.Rc1 Rxb4 28.axb4 Na7 29.Rc7 Nb5
30.Rb7 Ke7 31.Ra2 Nc3 32.Ra3 Ra8 33.Kf1 Kd8 34.Bf3 Kc8 35.Rxd7 Kxd7 36.Nd1 Nb1
37.Ra2 Kc6 38.Nb2 Kb5 39.Nc4 Kxb4 40.Nd6 a3  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "3"]
[White "Hort, Vlastimil"]
[Black "Mecking, Henrique"]
[Result "1/2-1/2"]
[WhiteElo "2610"]
[BlackElo "2575"]
[ECO "B36"]

1.c4 c5 2.Nf3 g6 3.d4 cxd4 4.Nxd4 Nc6 5.e4 Nf6 6.Nc3 d6 7.Be2 Nxd4 8.Qxd4 Bg7
9.Be3 O-O 10.Qd2 Qa5 11.f3 Be6 12.Rc1 Rfc8 13.b3 a6 14.a4 Qb4 15.Nd5 Nxd5
16.exd5 Qxd2+ 17.Kxd2 Bd7 18.Rhd1 Bb2 19.Rc2 Ba3 20.Bd4 Bb4+ 21.Kc1 a5 22.Kb1 e5
23.dxe6 fxe6 24.Bd3 Kf7 25.Re2 Bc6 26.f4 Rf8 27.Rf1 Ke7 28.Rff2 Kd7 29.Kc2 Rf7
30.g3 Raf8 31.h4 e5 32.fxe5 Rxf2 33.e6+ Ke7 34.Rxf2 Rxf2+ 35.Bxf2 Bf3 36.Be3 Be1
37.Bf4 Kxe6 38.Bf1 d5 39.Bh3+ Kf6 40.cxd5 Bxd5 41.Bc8 Be4+ 42.Kd1  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "3"]
[White "Ivkov, Borislav"]
[Black "Kagan, Shimon"]
[Result "1/2-1/2"]
[WhiteElo "2535"]
[BlackElo "2405"]
[ECO "E91"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 Bg4 7.Be3 Nfd7 8.Rc1 e5
9.d5 a5 10.O-O Bxf3 11.Bxf3 Na6 12.Bg4 Ndc5 13.Bh3 Qh4 14.Qg4 Qxg4 15.Bxg4 f5
16.Bf3 Bf6 17.b3 Kg7 18.Rfd1 h6 19.Rb1 Bg5 20.a3 Bxe3 21.fxe3 fxe4 22.Bxe4 Rf7
23.b4 axb4 24.axb4 Nd7 25.Bd3 Raf8 26.Rb2 Nf6 27.h3 Re7 28.Be2 h5 29.e4 Nd7
30.Rf1 Ref7 31.Rxf7+ Rxf7 32.Bd3 Kh6 33.Na4 Nb6 34.Nxb6 cxb6 35.c5 bxc5 36.Bxa6 bxa6
37.bxc5 dxc5 38.Ra2 Rf4 39.d6 c4 40.d7 Rf8 41.Rxa6 Rd8 42.Ra7 Kg5 43.g3  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "3"]
[White "Panno, Oscar"]
[Black "Hug, Werner"]
[Result "1-0"]
[WhiteElo "2580"]
[BlackElo "2445"]
[ECO "E70"]

1.d4 Nf6 2.c4 g6 3.Nc3 c5 4.d5 d6 5.e4 Bg7 6.Bd3 O-O 7.Nge2 e5 8.h3 Na6 9.a3 Nc7
10.Rb1 Qe7 11.Bg5 h6 12.Be3 Nh7 13.Qd2 h5 14.O-O f5 15.f4 g5 16.fxe5 f4 17.exd6 fxe3
18.dxe7 Rxf1+ 19.Rxf1 exd2 20.e5 Bxe5 21.Bxh7+ Kxh7 22.Rf8 Bd7 23.Rd8 Ba4
24.b3 Be8 25.d6 Bxd6 26.Rxd6 Kg7 27.Ng3 Bg6 28.Rxd2 Kf7 29.Rd7 Rc8 30.Rd8  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "3"]
[White "Portisch, Lajos"]
[Black "Geller, Efim P"]
[Result "1/2-1/2"]
[WhiteElo "2645"]
[BlackElo "2585"]
[ECO "E92"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.Be3 Ng4 8.Bg5 f6
9.Bh4 Nc6 10.d5 Ne7 11.Nd2 Nh6 12.g4 Nf7 13.Qc2 c5 14.f3 Bd7 15.Bd3 Nc8 16.Bf2 Bh6
17.h4 Bf4 18.Nf1 a6 19.a4 Qa5 20.Ra3 Ne7 21.Kd1 Kg7 22.Ng3 Rfb8 23.Nge2  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "3"]
[White "Reshevsky, Samuel Herman"]
[Black "Smyslov, Vassily"]
[Result "1/2-1/2"]
[WhiteElo "2565"]
[BlackElo "2600"]
[ECO "E17"]

1.Nf3 Nf6 2.c4 b6 3.d4 Bb7 4.g3 e6 5.Bg2 Be7 6.Nc3 Ne4 7.Bd2 Bf6 8.Qc2 Nxd2
9.Qxd2 d5 10.cxd5 exd5 11.Ne5 O-O 12.O-O c5 13.e3 cxd4 14.exd4 Na6 15.Rac1 Nc7
16.Nd1 g6 17.Ne3 Bg7 18.Rc2 Qd6 19.Rfc1 Ne6 20.f4 Rae8 21.h4 Re7 22.h5 Rc7
23.hxg6 hxg6 24.Rxc7 Nxc7 25.Bh3 Rd8 26.Rc2 Ne8 27.a3 Nf6 28.Qc1 Ne4 29.Rc7 Nxg3
30.Bg4 Ba6 31.Rxf7 Rf8 32.Rxf8+ Bxf8 33.Qc6 Qxc6 34.Nxc6 Bd6 35.Nxd5 Bb7
36.Bd7 Bxc6 37.Bxc6 Ne2+ 38.Kf2 Nxf4 39.Nf6+ Kf7 40.Ne4 Ke7 41.Ke3 Ne6 42.Bd5 Bf4+
43.Kd3 g5 44.Nc3 Bc1 45.Kc2 Be3 46.Ne2 Nxd4+ 47.Nxd4 Bxd4  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "3"]
[White "Savon, Vladimir A"]
[Black "Keres, Paul"]
[Result "1/2-1/2"]
[WhiteElo "2570"]
[BlackElo "2605"]
[ECO "C68"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Qd6 6.d3 Ne7 7.Be3 Ng6 8.Nbd2 Be6
9.Qe2 Be7 10.d4 O-O 11.c3 Rad8 12.Nc4 Bxc4 13.Qxc4 Rfe8 14.Qb3 exd4 15.Nxd4 c5
16.Nf5 Qc6  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "3"]
[White "Tan Lian Ann"]
[Black "Gheorghiu, Florin"]
[Result "1/2-1/2"]
[WhiteElo "2365"]
[BlackElo "2530"]
[ECO "B44"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e6 5.Nb5 d6 6.Bf4 e5 7.Be3 a6 8.N5c3 Nf6
9.Bg5 Be7 10.Bxf6 Bxf6 11.Nd5 Bg5 12.Nd2 Be6 13.Nc4 b5 14.Nce3 O-O 15.Be2 Qa5+
16.c3 b4 17.O-O bxc3 18.bxc3 Rfd8 19.Bg4 Bxd5 20.Nxd5 Ne7 21.c4 Rab8 22.Nxe7+ Bxe7
23.Qd5 Qxd5 24.cxd5 Rb4 25.Rfe1 Rdb8 26.Kf1 Bg5 27.Re2 a5 28.a4 Rc4 29.Bd7 Rbb4
30.Rae1 g6 31.g3 Bd8 32.Bb5 Rd4 33.Kg2 Kg7 34.f3 Bb6 35.Rc1 Bc5 36.Rf1 f5
37.Rfe1 Kf6 38.Rf1 Rb3 39.Rc1 Rbb4 40.Rf1 Ke7 41.Rfe1 Kf6 42.Rf1 Rb3 43.Rc1 Rdb4
44.Rf1 Rc3 45.Rfe1 Kg5 46.Bd7 f4 47.h4+ Kh6 48.gxf4 exf4 49.e5 dxe5 50.Rxe5 Rbb3
51.Bg4 Be3 52.Re2 Rd3 53.h5 Rb1 54.hxg6 hxg6 55.Kh3 Rdd1 56.d6 Rxd6 57.Rxa5 Rd8
58.Re5 Rh8 59.R2xe3 fxe3 60.Rxe3 Kg5+ 61.Kg3 Rg1+ 62.Kf2 Ra1 63.Re5+ Kh4
64.Bd7 Rh5 65.Re4+ Kg5 66.Rd4 Rhh1 67.Rg4+ Kf6 68.Rf4+ Ke7 69.Bb5 Ra3 70.Re4+ Kf6
71.Rf4+ Kg5 72.Rg4+ Kh6 73.Rd4 Rh2+ 74.Kg3 Rc2 75.Rd6 Rcc3 76.Bc6 Rc5 77.Kf2 Rg5
78.Rd4 Re5 79.Be4 Re6 80.Rc4 Kg5 81.Kg3  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "4"]
[White "Ljubojevic, Ljubomir"]
[Black "Hug, Werner"]
[Result "1-0"]
[WhiteElo "2570"]
[BlackElo "2445"]
[ECO "C17"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.dxc5 Qc7 6.Nf3 Nd7 7.Qd4 Qxc5 8.Qxc5 Nxc5
9.Bd2 Bd7 10.a3 Bxc3 11.Bxc3 Ne7 12.h4 Rc8 13.Bd3 Nxd3+ 14.cxd3 h5 15.Kd2 Nf5
16.Rag1 Bc6 17.b3 b6 18.Rh3 Kd7 19.a4 Rc7 20.Nd4 g6 21.Nxf5 gxf5 22.Rg3 d4
23.Bxd4 Bd5 24.b4 Rhc8 25.Ke3 Rc2 26.Ra1 Rc1 27.Rxc1 Rxc1 28.Rg7 Rb1 29.Rxf7+ Ke8
30.Rxa7 f4+ 31.Kxf4 Rxb4 32.Ke3 Bxg2 33.Ra6 Kf7 34.f4 Bd5 35.Bxb6 Kg6 36.Bc5 Rb1
37.Ra7 Re1+ 38.Kd2 Rf1 39.Be3 Rh1 40.Bf2 Kf5 41.Rf7+ Kg4 42.Ke2 Ra1 43.Rg7+ Kh3
44.Rg5 Rxa4 45.Ke3 Ra3 46.f5 exf5 47.Rxf5 Be6 48.Rf6 Bc4 49.Rd6 Bb5 50.e6 Kg4
51.Rd4+ Kh3 52.Rd5 Be8 53.Rd8  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "4"]
[White "Geller, Efim P"]
[Black "Reshevsky, Samuel Herman"]
[Result "1/2-1/2"]
[WhiteElo "2585"]
[BlackElo "2565"]
[ECO "C94"]

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 Nb8 10.d3 Nbd7 11.Nbd2 Bb7 12.Nf1 Nc5 13.Bc2 Re8 14.Ng3 Bf8 15.b4 Ncd7
16.d4 g6 17.Bd2 Bg7 18.a4 d5  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "4"]
[White "Gheorghiu, Florin"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[WhiteElo "2530"]
[BlackElo "2645"]
[ECO "A29"]

1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.g3 Bb4 5.Nd5 Bc5 6.d3 h6 7.Bg2 O-O 8.O-O d6
9.Bd2 Nxd5 10.cxd5 Ne7 11.b4 Bb6 12.a4 a6 13.Qb3 Bd7 14.Bc3 Nf5 15.e4 Ne7
16.d4 f6 17.Nd2 exd4 18.Bb2 Ng6 19.Nf3 d3 20.Qxd3 Ne5 21.Qb3 Nxf3+ 22.Qxf3 Qe7
23.Rfe1 Rae8 24.a5 Ba7 25.Rac1 c6 26.Qd1  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "4"]
[White "Hug, Werner"]
[Black "Hort, Vlastimil"]
[Result "0-1"]
[WhiteElo "2445"]
[BlackElo "2610"]
[ECO "A04"]

1.e4 c5 2.Nf3 e6 3.d3 Nc6 4.g3 g6 5.Bg2 Bg7 6.O-O Nge7 7.c3 e5 8.Be3 d6 9.d4 exd4
10.cxd4 Bg4 11.dxc5 dxc5 12.Qc1 O-O 13.Nbd2 b6 14.h3 Be6 15.Rd1 Qc8 16.Ng5 Rd8
17.Bf1 Ne5 18.Qc2 N7c6 19.a3 Nd4 20.Bxd4 cxd4 21.Qxc8 Bxc8 22.f4 h6 23.Ngf3 Nxf3+
24.Nxf3 d3 25.e5 Bf8 26.Rxd3 Rxd3 27.Bxd3 Bxh3 28.Rc1 Rd8 29.Be4 Be6 30.Kf2 Bc5+
31.Ke2 a5 32.Rc2 Bg4 33.Rc3 Rd4 34.Bc6 Kf8 35.Ke1 Rd8 36.Be4 Ke7 37.Bc2 Be6
38.Rd3 Rxd3 39.Bxd3 Be3 40.Nd2 Bd4 41.b3 Bc3 42.Ke2 Bxd2 43.Kxd2 Bxb3 44.Kc3 Be6
45.Kd4 Kd7 46.Bb5+ Kc7 47.Be8 Kc8 48.Bc6 Kd8 49.Bb5 Kc7 50.Be8 Kd8 51.Bb5 Ke7
52.Bd3 f5 53.exf6+ Kxf6 54.Be2 Bf7 55.Ke4 Ke6 56.Bb5 Kd6 57.Kd4 Be6 58.Be8 Bf5
59.Kc4 g5 60.fxg5 hxg5 61.Kd4 Bd7 62.Bg6 b5 63.Bc2 Be6 64.Bd3 Kc6 65.Be4+ Kb6
66.Ke5 Bg8 67.g4 Kc5 68.Bd3 a4 69.Bc2 Bb3 70.Bb1 b4 71.axb4+ Kxb4 72.Kd4 a3
73.Kd3 Be6 74.Kc2 a2  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "4"]
[White "Kagan, Shimon"]
[Black "Panno, Oscar"]
[Result "0-1"]
[WhiteElo "2405"]
[BlackElo "2580"]
[ECO "B80"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g3 Nc6 7.Bg2 Bd7 8.O-O a6
9.a4 Rc8 10.Nde2 Be7 11.h3 O-O 12.Be3 Nb4 13.a5 Qc7 14.Bb6 Qb8 15.f4 Bd8
16.Bxd8 Rfxd8 17.f5 exf5 18.exf5 Bc6 19.Rf4 Qa7+ 20.Kh2 Qc5 21.Bxc6 bxc6
22.Nd4 Nbd5 23.Nxd5 Qxd5 24.Nb3 Qb5 25.Qf1 Qb7 26.Rd1 c5 27.g4 d5 28.g5 Nh5
29.Rf3 Re8 30.Qf2 Re4 31.Kg1 Qc6 32.Nd2 Re5 33.Re1 Rxe1+ 34.Qxe1 g6 35.f6 h6
36.gxh6 Kh7 37.Qe7 Rc7 38.Qe5 c4 39.Nf1 Qc5+ 40.Ne3 d4 41.Ng4 Qa7 42.Nf2 d3
43.cxd3 cxd3 44.Rxd3 Rc1+ 45.Kg2 Rc2 46.Rf3 Qb7 47.b3 Qc6 48.h4 Ra2 49.b4 Qc4
50.Kg1 Re2 51.Qa1 Qxb4 52.Qc3 Qxh4 53.Kf1 Rxf2+ 54.Rxf2 Ng3+ 55.Kg2 Ne4 56.Qf3  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "4"]
[White "Keres, Paul"]
[Black "Bronstein, David I"]
[Result "1/2-1/2"]
[WhiteElo "2605"]
[BlackElo "2585"]
[ECO "D16"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bg4 6.Ne5 Bh5 7.g3 a5 8.Bg2 e6
9.Nxc4 Na6 10.O-O Be7 11.b3 O-O 12.Bb2 Nd5 13.Rc1 Qc7 14.Qd2 Rfd8 15.e4 Nxc3
16.Bxc3 Nb4 17.Bb2 b5 18.Ne3 Qb6 19.axb5 Qxb5 20.Rc4 f6 21.f4 Bf7 22.e5 fxe5
23.fxe5 Bg6 24.Bh3  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "4"]
[White "Ljubojevic, Ljubomir"]
[Black "Ivkov, Borislav"]
[Result "1/2-1/2"]
[WhiteElo "2570"]
[BlackElo "2535"]
[ECO "D55"]

1.c4 e6 2.Nf3 d5 3.d4 Nf6 4.Nc3 Be7 5.Bg5 h6 6.Bxf6 Bxf6 7.e3 O-O 8.Rc1 c6
9.Bd3 Nd7 10.O-O dxc4 11.Bxc4 e5 12.Ne4 exd4 13.Nxf6+ Nxf6 14.Nxd4  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "4"]
[White "Mecking, Henrique"]
[Black "Tan Lian Ann"]
[Result "1-0"]
[WhiteElo "2575"]
[BlackElo "2365"]
[ECO "A29"]

1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.g3 Bb4 5.Bg2 O-O 6.O-O e4 7.Ng5 Bxc3 8.bxc3 Re8
9.d3 exd3 10.exd3 d6 11.Rb1 h6 12.Ne4 Nxe4 13.Bxe4 Ne5 14.f4 Nxc4 15.f5 d5
16.Bg2 Ne3 17.Bxe3 Rxe3 18.f6 g6 19.Qd2 Re6 20.Qxh6 Rxf6 21.Rxf6 Qxf6 22.Bxd5 Bf5
23.Rxb7 Rd8 24.Bc4 Qxc3 25.Bxf7+ Kxf7 26.Rxc7+ Qxc7 27.Qh7+ Ke6 28.Qxc7 Rxd3
29.Qxa7 Rd1+ 30.Kf2 Rd2+ 31.Kf3 Rd3+ 32.Kf4 Kf6 33.Qa6+  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "4"]
[White "Polugaevsky, Lev"]
[Black "Biyiasas, Peter"]
[Result "1-0"]
[WhiteElo "2640"]
[BlackElo "2395"]
[ECO "D48"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6
9.e4 c5 10.d5 e5 11.b3 Bd6 12.O-O O-O 13.Re1 Rb8 14.Bf1 Re8 15.a4 b4 16.Nb1 Nb6
17.Nbd2 Re7 18.Bb2 Ne8 19.Rc1 f6 20.a5 Na8 21.Nc4 Rc7 22.Nfd2 Bd7 23.f4 Qe7
24.fxe5 fxe5 25.Nxd6 Nxd6 26.Nc4 Nxc4 27.Bxc4  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "4"]
[White "Smyslov, Vassily"]
[Black "Savon, Vladimir A"]
[Result "1/2-1/2"]
[WhiteElo "2600"]
[BlackElo "2570"]
[ECO "A06"]

1.Nf3 Nf6 2.b3 d5 3.Bb2 Bg4 4.e3 e6 5.h3 Bxf3 6.Qxf3 Be7 7.g3 c5 8.Bg2 Nc6
9.O-O O-O 10.d3 Nd7 11.Qe2 Bf6 12.c4 Bxb2 13.Qxb2 Nf6 14.cxd5 exd5 15.Nd2 Rc8
16.Nf3 Qb6 17.Rfd1 Rfd8 18.Rac1 Rc7 19.d4 c4 20.Ne5 cxb3 21.Qxb3 Qxb3 22.axb3 Rdc8
23.Nd3 Ne7 24.Rxc7 Rxc7 25.Ra1 b6 26.b4 Ne4 27.Nf4 g5 28.Nxd5 Nxd5 29.Bxe4 Nxb4
30.d5 Rd7 31.Rd1 Rd6 32.Bg2 f5 33.g4 fxg4 34.e4 Nc6 35.Ra1 Ne5 36.Rxa7 gxh3
37.Bxh3 g4 38.Bg2 Rd7 39.Ra8+ Kf7 40.Bf1 Rc7 41.Bb5 Rc5 42.Be8+ Kf6 43.Kg2 Rc4
44.Rb8 Rxe4 45.Rxb6+ Kf5 46.Rh6  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "5"]
[White "Hort, Vlastimil"]
[Black "Kagan, Shimon"]
[Result "1-0"]
[WhiteElo "2610"]
[BlackElo "2405"]
[ECO "E81"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 c6 6.Be3 Nbd7 7.Bd3 a6 8.Nge2 b5
9.b3 O-O 10.O-O bxc4 11.bxc4 c5 12.Rb1 cxd4 13.Nxd4 Ne5 14.Be2 Bd7 15.Nb3 a5
16.Nd5 Nxd5 17.cxd5 Ba4 18.Qd2 Bxb3 19.Rxb3 Nd7 20.Rc1 a4 21.Rb7 Rb8 22.Qb4 Nc5
23.Rxb8 Qxb8 24.Rb1 Qxb4 25.Rxb4 a3 26.Bxc5 dxc5 27.Rb7 Bd4+ 28.Kf1 f5 29.Bc4 fxe4
30.Rxe7 exf3 31.d6+ Kh8 32.gxf3 Rxf3+ 33.Ke2 Rf8 34.d7 Bf6 35.Re3 Rd8 36.Bb5 c4
37.Rxa3 c3 38.Ra6 Kg7 39.a4 Rf8 40.Rc6 Bh4 41.Rxc3 Bd8 42.Re3 g5 43.Re8 h5
44.Kd3 g4 45.Kc4 Bc7 46.Bc6 h4 47.Kb5 g3 48.hxg3 hxg3 49.Ka6 Bd8 50.Kb7 Ba5
51.Re3 Kf6 52.Rxg3 Ke6 53.Re3+ Kd6 54.Re8 Rf7 55.Ra8 Bd2 56.a5 Bc3 57.a6  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "5"]
[White "Bronstein, David I"]
[Black "Smyslov, Vassily"]
[Result "1-0"]
[WhiteElo "2585"]
[BlackElo "2600"]
[ECO "C91"]

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.d4 Bg4 10.Be3 exd4 11.cxd4 Na5 12.Bc2 Nc4 13.Bc1 c5 14.b3 Na5 15.d5 Nd7
16.Nbd2 Bf6 17.Rb1 Bc3 18.h3 Bxf3 19.Qxf3 b4 20.Rd1 Re8 21.Nf1 Qf6 22.Qxf6 Nxf6
23.f3 g6 24.Bf4 Nb7 25.Nd2 Nh5 26.Bh2 f5 27.g4 Nf6 28.g5 Nh5 29.Nc4 f4 30.h4 a5
31.a4 Be5 32.Bd3 Kg7 33.Nb6 Re7  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "5"]
[White "Tan Lian Ann"]
[Black "Hug, Werner"]
[Result "1/2-1/2"]
[WhiteElo "2365"]
[BlackElo "2445"]
[ECO "C05"]

1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Ne4 5.Bd3 Nxd2 6.Bxd2 c5 7.dxc5 Nd7 8.Nf3 Nxc5
9.O-O Be7 10.Be3 O-O 11.Bxc5 Bxc5 12.c3 Bd7 13.Qe2 Rc8 14.Rad1 f5 15.exf6 Qxf6
16.Rde1 Bd6 17.Ne5 Bxe5 18.Qxe5 Rce8 19.f4 Bc6 20.Re3 Rf7 21.Rh3 g6 22.Re3 Kg7
23.g3 Rd7 24.Rfe1 d4 25.cxd4 Rxd4 26.Be4 Qxe5 27.fxe5 Bxe4 28.Rxe4 Rd2 29.R4e2 Red8
30.Kf2 Rf8+ 31.Kg2 Rfd8 32.Kf2 h5 33.Rxd2 Rxd2+ 34.Re2 Rxe2+ 35.Kxe2 g5 36.Kf3 Kg6
37.g4  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "5"]
[White "Ivkov, Borislav"]
[Black "Biyiasas, Peter"]
[Result "1/2-1/2"]
[WhiteElo "2535"]
[BlackElo "2395"]
[ECO "E92"]

1.Nf3 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.d4 O-O 6.Be2 e5 7.Be3 Ng4 8.Bg5 f6
9.Bh4 Nc6 10.d5 Ne7 11.Nd2 Nh6 12.f3 c5 13.a3 Nf7 14.b4 b6 15.Rb1 Kh8 16.Bd3 Ng8
17.Bc2 Bh6 18.Qe2 a6 19.Ba4 Ra7 20.Rb3 Bg5 21.Bf2 f5 22.O-O Nf6 23.bxc5 bxc5
24.Rfb1 Bxd2 25.Qxd2 fxe4 26.Nxe4 Nxe4 27.fxe4 Ng5 28.Re3 Raf7 29.Bg3 h5
30.Bh4 Rf4 31.Bg3 R4f7 32.Bh4 Kg7 33.Bc2 Nf3+ 34.Rxf3 Qxh4 35.Rxf7+ Rxf7
36.Bd3 Bd7 37.Rf1 Rxf1+ 38.Kxf1 Qxh2 39.Qa5 Qf4+ 40.Kg1 Qe3+ 41.Kh2 Kh6 42.Qd8  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "5"]
[White "Panno, Oscar"]
[Black "Ljubojevic, Ljubomir"]
[Result "0-1"]
[WhiteElo "2580"]
[BlackElo "2570"]
[ECO "A30"]

1.Nf3 Nf6 2.c4 c5 3.g3 b6 4.Bg2 Bb7 5.O-O g6 6.Nc3 Bg7 7.d4 cxd4 8.Qxd4 Nc6
9.Qf4 Rc8 10.Rd1 Nh5 11.Qe3 Nb4 12.Rb1 Rxc4 13.Ne5 Bxe5 14.Qxe5 f6 15.Qb5 Ba6
16.Qa4 Qc8 17.Qb3 Ng7 18.Nd5 Nc6 19.e4 Ne6 20.Be3 Kf7 21.Qa3 Rc2 22.Rbc1 Rxc1
23.Rxc1 Qb7 24.e5 fxe5 25.Nxe7 Bb5 26.Nd5 Re8 27.Qd6 Qc8 28.f4 exf4 29.Bxf4 Qd8
30.Be3 Ne7 31.Nxe7 Qxe7 32.Qd2 h5 33.Bd5 Kg7 34.h4 Kh7 35.Kh2 Ng7 36.Re1 Nf5
37.Bf2 Qf8 38.Rxe8 Qxe8 39.Bf3 Bc6 40.Qd3 Bxf3 41.Qxf3 Qe5 42.Qb3 d5 43.Qa4 Kh6
44.Qxa7 Nxh4 45.Qxb6 Nf5 46.Qb4 d4 47.Qd2+ g5 48.Qe1 Ne3 49.Kg1 Qe4 50.Bxe3 Qxe3+  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "5"]
[White "Polugaevsky, Lev"]
[Black "Keres, Paul"]
[Result "1-0"]
[WhiteElo "2640"]
[BlackElo "2605"]
[ECO "E08"]

1.c4 Nf6 2.Nf3 e6 3.g3 d5 4.Bg2 Be7 5.O-O O-O 6.d4 Nbd7 7.Qc2 c6 8.b3 b6
9.Rd1 Bb7 10.Nc3 Rc8 11.e4 dxe4 12.Nxe4 Nxe4 13.Qxe4 b5 14.Qc2 c5 15.Ng5 Bxg5
16.Bxb7 Rc7 17.dxc5 Bxc1 18.Raxc1 Rxc5 19.Qd2 Qb6 20.Qxd7 Rc7 21.Qxb5 Qxb5
22.cxb5 Rxb7 23.Rc5 Rfb8 24.a4 Kf8 25.Rdc1 Ke7 26.Rc7+ Kd6 27.R1c6+ Kd5 28.Kf1 e5
29.Ke2 Ke4 30.f3+ Kf5 31.Kd3 Rd8+ 32.Kc4 Rd7 33.Rxb7 Rxb7 34.a5 g5 35.g4+ Kf4
36.Rf6+ Ke3 37.b6 axb6 38.axb6 h5 39.gxh5 g4 40.fxg4 e4 41.h6  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "5"]
[White "Portisch, Lajos"]
[Black "Mecking, Henrique"]
[Result "1/2-1/2"]
[WhiteElo "2645"]
[BlackElo "2575"]
[ECO "A22"]

1.c4 e5 2.Nc3 Nf6 3.g3 Bb4 4.Bg2 O-O 5.e4 Bxc3 6.bxc3 c6 7.Ba3 Re8 8.Qb3 b6
9.Rd1 Bb7 10.d3 d5 11.Ne2 dxe4 12.dxe4 Qc8 13.c5 Ba6 14.f3 Nbd7 15.Bh3 Qb7
16.Nc1 Rab8 17.cxb6 Nxb6 18.Bd6 Rbd8 19.Kf2 Bb5 20.Qc2 Rxd6 21.Rxd6 Nc4 22.Rd3 Qb6+
23.Kg2 Ne3+ 24.Rxe3 Qxe3 25.Rd1 Qb6 26.Qf2 Qxf2+ 27.Kxf2 Kf8 28.Bf1 Bxf1
29.Kxf1 Ke7 30.Nd3 Nd7 31.Rb1 Ra8 32.Ke2 f6 33.Rb7 Kd8 34.f4 Kc8 35.Rb4 Kc7
36.Rb1 Re8 37.Kf3 f5 38.Nf2 fxe4+ 39.Nxe4 exf4 40.gxf4 Nb6 41.Rg1 Re7 42.h4 Nd5
43.c4 Nb6 44.c5 Nd5 45.f5 Kb7 46.Rb1+ Ka6 47.Rb8 Re5 48.Nd6 Nf6 49.Rb7 Rxc5
50.Rxg7 Rd5 51.Nc8 Rxf5+ 52.Kg2 Rf4 53.Rxa7+ Kb5 54.Rf7 h5 55.Na7+ Kc5 56.a4 Rg4+
57.Kf3 Nd5 58.Rf5 Rxh4 59.a5 Rh3+ 60.Kg2 Ra3 61.Rxh5 Rxa5 62.Nxc6 Kxc6  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "5"]
[White "Reshevsky, Samuel Herman"]
[Black "Gheorghiu, Florin"]
[Result "1/2-1/2"]
[WhiteElo "2565"]
[BlackElo "2530"]
[ECO "E62"]

1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.Nc3 d6 6.Nf3 Nc6 7.O-O e5 8.d5 Ne7
9.e4 c5 10.Ne1 Ne8 11.Nd3 f5 12.f4 exf4 13.Bxf4 fxe4 14.Nxe4 h6 15.h4 Nf5
16.Qd2  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "5"]
[White "Savon, Vladimir A"]
[Black "Geller, Efim P"]
[Result "1/2-1/2"]
[WhiteElo "2570"]
[BlackElo "2585"]
[ECO "C93"]

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 h6 10.d4 Re8 11.Be3 Bf8 12.Nbd2 Bd7 13.Qb1 Rb8 14.a3 a5 15.Ba2 a4 16.b4 axb3
17.Qxb3 Be6 18.Qc2 Bxa2 19.Rxa2 Qd7 20.a4 exd4 21.Bxd4 Nxd4 22.cxd4 bxa4
23.Rxa4 c5 24.Rea1 cxd4 25.Nxd4 Rbc8 26.Qd3 d5 27.Ra7 Qd8 28.exd5 Qxd5 29.N2b3 Rb8
30.R7a4 Re4 31.Nd2 Ree8 32.Qc4 Qxc4 33.Rxc4 Rb2 34.N2f3  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "6"]
[White "Ljubojevic, Ljubomir"]
[Black "Hort, Vlastimil"]
[Result "1-0"]
[WhiteElo "2570"]
[BlackElo "2610"]
[ECO "B11"]

1.e4 c6 2.Nc3 d5 3.Nf3 Bg4 4.h3 Bxf3 5.Qxf3 Nf6 6.d3 e6 7.a3 Nbd7 8.g4 g6
9.Qg3 Bc5 10.h4 h5 11.g5 Ng4 12.Nd1 dxe4 13.dxe4 Qb6 14.b4 Bd4 15.c3 Be5
16.f4 Bg7 17.e5 O-O-O 18.Ra2 Qc7 19.Be2 Nb6 20.a4 Nd5 21.Bxg4 hxg4 22.Qxg4 Ne7
23.h5 gxh5 24.Rxh5 Rxh5 25.Qxh5 Nf5 26.Ne3 Bxe5 27.fxe5 Qxe5 28.Qe2 Qxc3+
29.Bd2 Qb3 30.Ra1 Nd4 31.Qf1 e5 32.b5 e4 33.Kf2 Nc2 34.Qh3+ Kb8 35.Ba5 b6
36.bxc6 Qxe3+ 37.Qxe3 Nxe3 38.Kxe3 bxa5 39.Kxe4 Kc7 40.Rf1 Re8+ 41.Kd5 Re7
42.Rb1 Kc8 43.Rb7  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "6"]
[White "Biyiasas, Peter"]
[Black "Keres, Paul"]
[Result "1/2-1/2"]
[WhiteElo "2395"]
[BlackElo "2605"]
[ECO "C68"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Qd6 6.d4 exd4 7.Qxd4 Qxd4 8.Nxd4 Bd7
9.Bf4 O-O-O 10.Nc3 Ne7 11.Rad1 Ng6 12.Bg3 Bb4 13.Nf5 h5 14.Nh4 Nxh4 15.Bxh4 Rde8
16.Rfe1 Re5 17.f4 Ra5 18.Rd3 f6 19.a3 Bd6 20.f5 Re8 21.Bg3 Bxg3 22.Rxg3 Re7
23.Rd1 Rae5 24.Kf2 b6 25.Rgd3 a5 26.R1d2 c5 27.Nd5 Rf7 28.Re3 Bc6 29.c4 Rf8
30.Kf3 Be8 31.Kf4 Bf7 32.a4 Rfe8 33.b3  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "6"]
[White "Geller, Efim P"]
[Black "Bronstein, David I"]
[Result "1-0"]
[WhiteElo "2585"]
[BlackElo "2585"]
[ECO "B05"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Bg4 5.Be2 e6 6.O-O Be7 7.h3 Bh5 8.c4 Nb6
9.Nc3 O-O 10.Be3 d5 11.c5 Bxf3 12.Bxf3 Nc4 13.Bf4 Nc6 14.b3 N4a5 15.Rc1 b6
16.Na4 b5 17.Nc3 b4 18.Ne2 f6 19.exf6 Bxf6 20.Bg4 Qd7 21.Qd3 a6 22.Rce1 Qf7
23.Bh2 Rfe8 24.Rd1 Nb7 25.Kh1 Nbd8 26.f4 g6 27.Bf3 Ne7 28.g4 Ndc6 29.f5 exf5
30.Bxc7 Kh8 31.Bh2 Red8 32.Qe3 g5 33.gxf5 Nxf5 34.Qf2 Ng7 35.Bg4 Rf8 36.Be5 Ne8
37.Ng3 Ra7 38.Bh5 Qg8 39.Qb2 Bxe5 40.dxe5 d4 41.Rxf8 Qxf8 42.Rf1 Qg8 43.Qf2 Ng7
44.Bf7 Qd8 45.Bc4 Ra8 46.Ne4 Nh5 47.Qf7 Nf4 48.Qb7 Na5 49.Qf7 Ng6 50.Bd5 Rc8
51.Nd6 Rc7 52.Qf5 Qe7 53.Nf7+ Kg7 54.Nxg5 Rd7 55.e6 Rc7 56.Nxh7  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "6"]
[White "Gheorghiu, Florin"]
[Black "Savon, Vladimir A"]
[Result "1/2-1/2"]
[WhiteElo "2530"]
[BlackElo "2570"]
[ECO "A29"]

1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.g3 Bb4 5.Nd5 e4 6.Nh4 d6 7.Bg2 Bc5 8.O-O Be6
9.d3 Nxd5 10.cxd5 Bxd5 11.dxe4 Be6 12.Nf5 O-O 13.Bd2 Qd7 14.Qc2 Nd4 15.Nxd4 Bxd4
16.e3 Bb6 17.Bc3 f6 18.Rfd1 Qf7 19.b3 Rad8  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "6"]
[White "Hug, Werner"]
[Black "Portisch, Lajos"]
[Result "0-1"]
[WhiteElo "2445"]
[BlackElo "2645"]
[ECO "C05"]

1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.f4 c5 6.c3 Nc6 7.Ndf3 cxd4 8.cxd4 Nb6
9.Bd3 Bd7 10.Ne2 h5 11.O-O g6 12.Bd2 Nb4 13.Bxb4 Bxb4 14.a3 Be7 15.Nc3 Kf8
16.Ng5 Rc8 17.Qf3 Nc4 18.Nxd5 exd5 19.Qxd5 Be6 20.Nxe6+ fxe6 21.Qxd8+ Bxd8
22.Rac1 Nb6 23.Bxg6 Rxc1 24.Rxc1 Nd5 25.Be4 Bb6 26.Bxd5 exd5 27.Rd1 Ke7 28.Kf2 Rc8
29.Rd2 Ke6 30.g3 Rc4 31.Ke3 Rc1 32.Kd3 Re1 33.Rc2 Rd1+ 34.Ke2 Rxd4 35.Rc8 Rc4
36.Re8+ Kf5 37.Kd3 Rd4+ 38.Kc3 Re4 39.Rg8 Re2 40.Rg5+ Ke4 41.e6 Bd4+ 42.Kb4 Rxb2+
43.Ka4 Bc3 44.Re5+ Kd4  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "6"]
[White "Ivkov, Borislav"]
[Black "Panno, Oscar"]
[Result "1/2-1/2"]
[WhiteElo "2535"]
[BlackElo "2580"]
[ECO "E92"]

1.Nf3 c5 2.c4 g6 3.d4 Bg7 4.d5 d6 5.e4 Nf6 6.Nc3 O-O 7.Be2 e5 8.Bg5 h6 9.Bh4 Qc7
10.Nd2 Nh7 11.a3 Bf6 12.Bxf6 Nxf6 13.h4 h5 14.f3 Kg7 15.Nf1 Qe7 16.Ne3 Na6
17.Qd2 Rb8 18.b3  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "6"]
[White "Kagan, Shimon"]
[Black "Tan Lian Ann"]
[Result "1-0"]
[WhiteElo "2405"]
[BlackElo "2365"]
[ECO "B56"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g3 e5 7.Nde2 d5 8.exd5 Nb4
9.a3 Nbxd5 10.Bg2 Be6 11.Bg5 Bc5 12.O-O Nxc3 13.Nxc3 O-O 14.Bxb7 Rb8 15.Qf3 Be7
16.Bxf6 Bxf6 17.Rab1 Qb6 18.Be4 Bd8 19.Rfd1 f5 20.Bd5 Kh8 21.Bxe6 Qxe6 22.Nd5 Bg5
23.Qh5 Bh6 24.b4 f4 25.Rb3 e4 26.Nxf4 Bxf4 27.gxf4 h6 28.Rg3 Rbc8 29.c3 Rxf4
30.Qh3 Rf5 31.Qg4 Qf7 32.Rd5 Rxd5 33.Qxc8+ Kh7 34.Qg4 Qe7 35.c4 Re5 36.Qf4 a5
37.c5 axb4 38.axb4 Rd5 39.c6 Rd1+ 40.Kg2 e3 41.Rxe3  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "6"]
[White "Smyslov, Vassily"]
[Black "Polugaevsky, Lev"]
[Result "1/2-1/2"]
[WhiteElo "2600"]
[BlackElo "2640"]
[ECO "A70"]

1.c4 Nf6 2.d4 c5 3.d5 g6 4.Nc3 d6 5.e4 Bg7 6.Bd3 O-O 7.Nf3 e6 8.O-O exd5
9.cxd5 Bg4 10.h3 Bxf3 11.Qxf3 Nbd7 12.Qe2 a6 13.a4 Re8 14.Bf4 c4 15.Bc2 Nc5
16.Rfe1 Rc8 17.Qd2 b5 18.axb5 axb5 19.Nxb5 Nfxe4 20.Bxe4 Nxe4 21.Qc2 Qb6
22.Na7 Qxb2 23.Qxb2 Bxb2 24.Nxc8 Bxa1 25.Nxd6 Nxd6 26.Rxa1 Rd8 27.Bg5 Rd7
28.Bf6 Ne8 29.Ra8 Kf8 30.Bc3 f5  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "6"]
[White "Mecking, Henrique"]
[Black "Reshevsky, Samuel Herman"]
[Result "1-0"]
[WhiteElo "2575"]
[BlackElo "2565"]
[ECO "C95"]

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 Nb8 10.d4 Nbd7 11.Nbd2 Bb7 12.Bc2 Re8 13.a4 Bf8 14.b4 a5 15.bxa5 Rxa5
16.Rb1 Ba6 17.axb5 Rxb5 18.Bb3 Re7 19.Qc2 Rb8 20.Ng5 Bb7 21.f4 h6 22.fxe5 dxe5
23.Ngf3 c5 24.Ba3 Qc7 25.Nh4 Ree8 26.Qa2 Nb6 27.dxe5 Rxe5 28.Bxf7+ Qxf7 29.Qxf7+ Kxf7
30.Rxb6 Nd7 31.Rb5 Ba6 32.Rf1+  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "7"]
[White "Tan Lian Ann"]
[Black "Ljubojevic, Ljubomir"]
[Result "1/2-1/2"]
[WhiteElo "2365"]
[BlackElo "2570"]
[ECO "B53"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 Bd7 5.c4 Nf6 6.Nc3 Nc6 7.Qd2 a6 8.b3 Rb8
9.a3 g6 10.b4 Bg7 11.Bb2 O-O 12.h3 Rc8 13.Bd3 Be6 14.Nd5 Nd7 15.Bxg7 Kxg7
16.O-O Nde5 17.Nxe5 Nxe5 18.Be2 f6 19.Rac1 g5 20.Rfd1 Qe8 21.Qd4 Rc6 22.Rc3 Rg8
23.Rdc1 Qd7 24.Bd1 Qd8 25.Ba4 Rc8 26.c5 dxc5 27.Rxc5 Rxc5 28.Rxc5 Qd6 29.Qc3 b6
30.Rc7 Bxd5 31.exd5 Rd8 32.Bc2 Rd7 33.Rxd7 Qxd7 34.Qd4 Qd6 35.h4  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "7"]
[White "Portisch, Lajos"]
[Black "Kagan, Shimon"]
[Result "1-0"]
[WhiteElo "2645"]
[BlackElo "2405"]
[ECO "E81"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 c6 6.Be3 Nbd7 7.Bd3 a6 8.Nge2 O-O
9.O-O b5 10.Qd2 e5 11.Rad1 Qc7 12.Rc1 b4 13.Nd1 c5 14.dxe5 dxe5 15.Bg5 Nb8
16.Ne3 Nc6 17.Nd5 Qd6 18.Bb1 Kh8 19.Rfd1 Nd7 20.Qe1 Qb8 21.Qh4 f6 22.Bd2 Nb6
23.f4 Ra7 24.Rf1 Raf7 25.Ng3 Bd7 26.f5 g5 27.Qg4 Nd4 28.Ne2 Nxd5 29.exd5 Nxe2+
30.Qxe2 Qd6 31.Be4 Re7 32.h4 gxh4 33.Qh5 Rg8 34.Qxh4 Bf8 35.Bxb4 Reg7 36.Bd2 Rg4
37.Qe1 Qb8 38.b3 Qe8 39.Rc3 Bd6 40.Rh3 Qf7 41.Qe2 Qe7 42.Rh2 Qg7 43.Bh6 Qf7
44.Bd2 Qg7 45.Rf3 Rg3 46.Rxg3 Qxg3  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "7"]
[White "Polugaevsky, Lev"]
[Black "Geller, Efim P"]
[Result "1/2-1/2"]
[WhiteElo "2640"]
[BlackElo "2585"]
[ECO "E88"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 e5 7.d5 c6 8.Bd3 cxd5 9.cxd5 Ne8
10.Qd2 f5 11.Nge2 Nd7 12.exf5 gxf5 13.O-O Kh8 14.Rac1 Ndf6 15.Kh1 Qe7 16.Bg5 Qf7
17.Ng3 f4 18.Bxf6 Bxf6 19.Nge4 Be7 20.Nb5 Bf5 21.Nc7 Rc8 22.Nxe8 Qxe8 23.Rxc8 Qxc8
24.Rc1 Qd8 25.Nc3 Bd7 26.Qc2 Rf7 27.Ne4 Rf8 28.Qb3 Qb8 29.Rc3 Rc8 30.Qc2 Kg7
31.g4 fxg3 32.Nxg3 Rxc3 33.bxc3 Qf8 34.Kg2 Qg8 35.c4 Kh8 36.Bf5 Be8 37.Qb3 b6
38.Qa3 Qg5 39.Qxa7 Qd2+ 40.Kh3 Qh6+ 41.Kg2  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "7"]
[White "Panno, Oscar"]
[Black "Biyiasas, Peter"]
[Result "1/2-1/2"]
[WhiteElo "2580"]
[BlackElo "2395"]
[ECO "A42"]

1.c4 g6 2.e4 d6 3.d4 e5 4.Ne2 Nc6 5.Nbc3 Bg7 6.Be3 Nh6 7.f3 f5 8.Qd2 fxe4
9.Nxe4 Nf5 10.Bg5 Bh6 11.Bxd8 Bxd2+ 12.Kxd2 Kxd8 13.dxe5 Nxe5 14.N2c3 Be6
15.b3 c6 16.Re1 Kd7 17.f4 Nf7 18.Bd3 Rac8 19.Rhf1 h5 20.Nd5 Nd8 21.Ne3 Nxe3
22.Rxe3 Bf5 23.h4 Ne6 24.g3 Rh7 25.Rfe1 Re7 26.Bf1 Rce8 27.Bg2 Nc7 28.Rd3 d5
29.Nc5+ Kc8 30.Rde3 Rxe3 31.Rxe3 dxc4 32.bxc4 Rd8+ 33.Kc3 Rd1 34.Be4 Rc1+
35.Kb3 b5 36.Rc3 Re1 37.Bxf5+ gxf5 38.cxb5 Nxb5 39.Rd3 Kc7 40.a4 Nd6 41.Na6+ Kd7  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "7"]
[White "Keres, Paul"]
[Black "Smyslov, Vassily"]
[Result "0-1"]
[WhiteElo "2605"]
[BlackElo "2600"]
[ECO "C97"]

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 Re8 13.Nf1 g6 14.Bh6 Nc4 15.Qc1 exd4
16.cxd4 cxd4 17.b3 Ne5 18.Nxd4 Bb7 19.Qb2 Rac8 20.Rad1 d5 21.exd5 Nxd5 22.Bb1 Bb4
23.Bd2 Bc3 24.Bxc3 Nxc3 25.Rc1 Qc5 26.Ne2 Nf3+ 27.gxf3 Rxe2 28.Rxe2 Nxe2+
29.Qxe2 Qg5+ 30.Kh2 Rxc1 31.Be4 Bc8 32.Bd3 Qh5 33.Qe3 Rc3 34.Qd4 Qxf3 35.Be4 Qf4+
36.Ng3 b4 37.Kg2 Be6 38.Qxb4 Rc8 39.Qe7 Qe5 40.Qb7 a5 41.h4  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "7"]
[White "Savon, Vladimir A"]
[Black "Mecking, Henrique"]
[Result "0-1"]
[WhiteElo "2570"]
[BlackElo "2575"]
[ECO "B96"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Nbd7 8.Qe2 Qc7
9.g4 b5 10.a3 Be7 11.Bg2 Bb7 12.O-O-O Rc8 13.Bh4 Qc4 14.Qxc4 Rxc4 15.Bf3 Nc5
16.Be2 Nfxe4 17.Nxe4 Bxe4 18.Bxe7 Nb3+ 19.Kb1 Rxd4 20.Bxd6 Bxh1 21.cxb3 Rxd1+
22.Bxd1 Kd7 23.Be5 f6 24.Bc3 Be4+ 25.Ka2 Kc6 26.a4 Rd8 27.Be2 e5 28.fxe5 fxe5
29.Bxe5 Rd2 30.Bf1 Rd1 31.axb5+ axb5 32.Bh3 b4 33.Bxg7 Rd7  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "7"]
[White "Bronstein, David I"]
[Black "Gheorghiu, Florin"]
[Result "1-0"]
[WhiteElo "2585"]
[BlackElo "2530"]
[ECO "B96"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Nbd7 8.Qe2 Qc7
9.O-O-O b5 10.a3 Rb8 11.Nd5 exd5 12.exd5+ Be7 13.Nc6 Nb6 14.Bxf6 gxf6 15.g3 Bb7
16.Nxb8 Qxb8 17.Bg2 Qd8 18.Rhe1 f5 19.Rd3 Kd7 20.Qh5 Kc8 21.Qxf5+ Kb8 22.Qxf7 Bf6
23.Rde3 Bxb2+ 24.Kxb2 Nc4+ 25.Ka2 Nxe3 26.Rxe3 Qb6 27.Re8+ Rxe8 28.Qxe8+ Ka7
29.Qe4 Qf2 30.Kb2 a5 31.f5 Kb6 32.g4 h6 33.Bf3 Qxh2 34.f6 Qh4 35.Qd4+ Kc7
36.f7  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "7"]
[White "Reshevsky, Samuel Herman"]
[Black "Hug, Werner"]
[Result "1/2-1/2"]
[WhiteElo "2565"]
[BlackElo "2445"]
[ECO "E92"]

1.Nf3 Nf6 2.d4 g6 3.c4 c5 4.d5 d6 5.Nc3 Bg7 6.e4 O-O 7.Be2 e5 8.Bg5 h6 9.Bh4 Qc7
10.Nd2 Nh7 11.O-O Bf6 12.Bxf6 Nxf6 13.a3 Kg7 14.b4 Na6 15.Rb1 Qe7 16.Qc2 h5
17.bxc5 Nxc5 18.Nb3 Nfd7 19.Nxc5 Nxc5 20.Na4 Na6 21.Qc3 b6 22.f4 f6 23.f5 Qe8
24.Qg3 g5 25.Nc3 Rh8 26.Qe3 Nc5 27.Nb5 Qe7 28.Rf3 Ba6 29.Nc3 Rac8 30.Rh3 Qf7
31.Rb4 Rc7 32.Qf3 Nb7 33.Nb1 Kf8 34.Qf1 Nc5 35.Nd2 Bc8 36.Qd1 h4 37.Rb1 Bd7
38.Bg4 Ba4 39.Qe2 Qe8 40.Kh1 Ke7 41.Qf1 Kd8 42.Bd1 Bxd1 43.Qxd1 Qh5 44.Qe1 Qg4
45.Kg1  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "7"]
[White "Hort, Vlastimil"]
[Black "Ivkov, Borislav"]
[Result "0-1"]
[WhiteElo "2610"]
[BlackElo "2535"]
[ECO "E39"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 O-O 6.Bf4 Na6 7.a3 Bxc3+ 8.Qxc3 Nxc5
9.Rd1 d5 10.f3 Bd7 11.e3 Rc8 12.b3 Qb6 13.b4 Na4 14.Qc2 a5 15.Kf2 axb4 16.Rb1 dxc4
17.Rxb4 Qa7 18.Rxc4 Nd5 19.Qe4 Nac3 20.Qd4 Qxa3 21.Nh3 f6 22.Rxc8 Rxc8 23.Bc4 b5
24.Bd3 e5 25.Bxe5 fxe5 26.Qh4 e4 27.fxe4 Rf8+  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "8"]
[White "Gheorghiu, Florin"]
[Black "Polugaevsky, Lev"]
[Result "0-1"]
[WhiteElo "2530"]
[BlackElo "2640"]
[ECO "B87"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bc4 e6 7.Bb3 b5 8.O-O Be7
9.f4 O-O 10.e5 dxe5 11.fxe5 Nfd7 12.Qh5 Nc6 13.Nxc6 Qb6+ 14.Be3 Qxc6 15.Kh1 Bb7
16.Rf3 Bc5 17.Re1 a5 18.a4 b4 19.Nb5 Bxe3 20.Rexe3 Nc5 21.Nd4 Qa6 22.Rf4 Rad8
23.Kg1 g6 24.Qh6 Rd7 25.Qh4 Nxb3 26.Rxb3 f5 27.Rg3 Qb6 28.Qh6 Rff7 29.c3 bxc3
30.bxc3 Qc5 31.h4 Qxe5 32.h5 Rg7 33.hxg6 Kh8 34.Kh2 Qf6 35.Rh4 e5 36.Nf3 f4
37.Rg5 Bxf3 38.gxf3 Rd2+ 39.Kh3 Qc6 40.Qh5 Qc4 41.Rxe5 Qf1+ 42.Kg4 Rd8 43.Kxf4 Qc1+
44.Kg3 Rxg6+ 45.Rg4 Qg1+ 46.Kh3 Rxg4 47.Qxg4 Qh1+ 48.Kg3 Rg8 49.Rg5 Qg1+
50.Kf4 Qc1+ 51.Kf5 Rf8+ 52.Ke4 Qxc3 53.Re5 Qe1+ 54.Kd5 Rd8+ 55.Ke6 Re8+  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "8"]
[White "Panno, Oscar"]
[Black "Hort, Vlastimil"]
[Result "1/2-1/2"]
[WhiteElo "2580"]
[BlackElo "2610"]
[ECO "A16"]

1.c4 Nf6 2.Nc3 d5 3.cxd5 Nxd5 4.g3 Nb6 5.Bg2 g6 6.d3 Bg7 7.Be3 O-O 8.Rc1 h6
9.Qd2 Kh7 10.f4 f5 11.h4 N8d7 12.h5 gxh5 13.Rxh5 Nf6 14.Rh3 c6 15.Nf3 Ng4
16.Bc5 Re8 17.Rh4 Kg8 18.Bh3 Nd7 19.Bg1 Ndf6 20.Ne5 h5 21.Bxg4 hxg4 22.e4 Nd7
23.Nc4 Nb6 24.Ne3 e6 25.e5 Kf7 26.Nc4 Nxc4 27.dxc4 Qxd2+ 28.Kxd2 b6 29.c5 Rd8+
30.Kc2 b5 31.b4 a5 32.a3 Ra7 33.Be3 a4 34.Rd1 Rxd1 35.Nxd1 Rd7 36.Bg1 Rd8
37.Rh2 Bf8 38.Nc3 Kg7 39.Ne2 Rd5 40.Nd4 Bd7 41.Kc3 Be7 42.Rh5 Bd8 43.Be3 Be7
44.Kc2 Bd8 45.Ne2 Be8  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "8"]
[White "Biyiasas, Peter"]
[Black "Smyslov, Vassily"]
[Result "1/2-1/2"]
[WhiteElo "2395"]
[BlackElo "2600"]
[ECO "B42"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Bc5 6.Nb3 Bb6 7.Bf4 d6 8.O-O Nc6
9.c4 e5 10.Bd2 Qh4 11.Nc3 Nf6 12.Qf3 Bg4 13.Qg3 Qxg3 14.hxg3 Rc8 15.Nd5 Nxd5
16.cxd5 Nd4 17.Nxd4 Bxd4 18.Rac1 Ke7 19.Rfe1 Bd7 20.b3 Bb2 21.Rxc8 Rxc8 22.Kf1 h5
23.Rb1 Bd4 24.Rc1 Rc5 25.Ke2 g6 26.Rc2 f5 27.f3 Kf6 28.Bb4 Rxc2+ 29.Bxc2 Bc5
30.Bd2 Bg1 31.Bd3 Bh2 32.Kf2 f4 33.gxf4 Bxf4 34.Bb4 Ke7 35.Ke2 g5 36.Ba5 Bc1
37.Bb4 Bc8 38.Ba5 Ba3 39.Bd2 Kf6 40.Ba5 g4 41.Bd8+ Kf7 42.Kf2 Bc5+ 43.Kg3 gxf3
44.gxf3 Bd7 45.Bf1 Bb4 46.a4 Be1+ 47.Kh2  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "8"]
[White "Geller, Efim P"]
[Black "Keres, Paul"]
[Result "1-0"]
[WhiteElo "2585"]
[BlackElo "2605"]
[ECO "D43"]

1.c4 c6 2.d4 d5 3.Nf3 Nf6 4.Nc3 e6 5.Bg5 h6 6.Bxf6 Qxf6 7.e3 Nd7 8.Bd3 Bb4
9.O-O Qe7 10.a3 Bxc3 11.bxc3 O-O 12.cxd5 exd5 13.a4 Rd8 14.a5 Nf8 15.Qa4 Bd7
16.Rfb1 Rab8 17.Qa3 Qxa3 18.Rxa3 c5 19.Ra2 Rdc8 20.Rab2 Rc7 21.h3 Ne6 22.Ne5 Bc8
23.Bf5 Kf8 24.Bg4 cxd4 25.cxd4 Rc3 26.Rb3 Rxb3 27.Rxb3 b5 28.Bf3 b4 29.Nc6 Rb7
30.Bxd5 Bd7 31.Ne5 Ba4 32.Bxb7 Bxb3 33.Nd3 Ke7 34.Nxb4 Kd6 35.f3 f5 36.Bc8 g5
37.Bxe6 Bxe6 38.f4 gxf4 39.exf4 Bc4 40.Kf2 Be6 41.Kf3 Bb3 42.g4 Ke6  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "8"]
[White "Kagan, Shimon"]
[Black "Reshevsky, Samuel Herman"]
[Result "0-1"]
[WhiteElo "2405"]
[BlackElo "2565"]
[ECO "B91"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.g3 e5 7.Nde2 Be7 8.Bg2 Be6
9.a4 Nbd7 10.O-O Rc8 11.h3 O-O 12.Kh2 Qc7 13.a5 Rfd8 14.Be3 h6 15.Qd2 Bf8
16.Rfc1 b5 17.g4 Nc5 18.Nd5 Bxd5 19.exd5 Re8 20.Ng3 e4 21.Bd4 Ncd7 22.g5 hxg5
23.Qxg5 Qb7 24.c3 Qxd5 25.Qxd5 Nxd5 26.Bxe4 Nf4 27.Bb7 Rb8 28.Bxa6 Nd3 29.b4 Nxc1
30.Rxc1 d5 31.Nf5 Re6 32.Bxb5 Rxb5 33.Rg1 g6 34.Ne3 Bg7 35.Bxg7 Kxg7 36.Nf5+ Kf6
37.Nd4 Rb8 38.Nxe6 fxe6 39.Ra1 Ke5 40.a6 Ra8 41.a7 Nb6 42.Ra6 Nc8 43.Rc6 Nxa7
44.Ra6 Rc8 45.Rxa7 Rxc3 46.Kg2 d4 47.Rg7 Kf5 48.Rf7+ Ke4 49.Rf6 Kd3 50.Rxe6 Kc2
51.Rd6 d3 52.Kf3 Kc1 53.Kg4 d2 54.h4 Kc2 55.Rxd2+ Kxd2 56.Kg5 Rc6 57.f4 Ke3
58.f5 gxf5 59.Kxf5 Kd4 60.h5 Kd5 61.b5 Rd6 62.Kg5 Ke6 63.Kg6 Rd1 64.h6 Rg1+
65.Kh7 Kf7  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "8"]
[White "Hug, Werner"]
[Black "Savon, Vladimir A"]
[Result "1/2-1/2"]
[WhiteElo "2445"]
[BlackElo "2570"]
[ECO "B52"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.O-O Nf6 6.e5 dxe5 7.Nxe5 Qc8 8.Qf3 e6
9.Nc3 Be7 10.d3 Nbd7 11.Bf4 Nxe5 12.Bxe5 O-O 13.Rfe1 Qd7 14.Rad1 Rac8 15.h4 Qc6
16.Ne4 Nxe4 17.dxe4 f6 18.Bc3 Rfd8 19.h5 b5 20.Ba5 Rxd1 21.Rxd1 Kf7 22.Be1 b4
23.c4 a5 24.Qe2 Rd8 25.Rxd8 Bxd8 26.f4 a4 27.Qd3 Ke7 28.Bd2 g6  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "8"]
[White "Ivkov, Borislav"]
[Black "Tan Lian Ann"]
[Result "1-0"]
[WhiteElo "2535"]
[BlackElo "2365"]
[ECO "D47"]

1.Nf3 d5 2.c4 c6 3.d4 Nf6 4.Nc3 e6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 a6 8.a4 Bb4
9.O-O O-O 10.Qe2 Qa5 11.Rd1 e5 12.Qc2 exd4 13.Rxd4 Nb6 14.Bd3 h6 15.Na2 c5
16.Rh4 Be6 17.Nxb4 cxb4 18.Bd2 Rfc8 19.Qd1 Nc4 20.Bxc4 Rxc4 21.Rxc4 Bxc4
22.Qe1 Qh5 23.Bxb4 Bd5 24.Nd4 Ng4 25.Bd6 Qg6 26.Bg3 Qe4 27.f3 Qxe3+ 28.Qxe3 Nxe3
29.b3 Bc6 30.Nxc6 bxc6 31.Rc1 Rc8 32.Rc5 Nd5 33.Ra5 Ra8 34.Be1 Kf8 35.b4 Rb8
36.Bg3 Rb6 37.Bf2 Rb7 38.Rxa6 Nxb4 39.Bc5+ Ke8 40.Ra8+ Kd7 41.a5 Rb5 42.Bf8 c5
43.Bxg7 h5 44.h4 f5 45.a6 Ra5 46.Rf8 Rxa6 47.Rxf5 Rc6 48.Rxh5 c4 49.Rb5 Nd3
50.h5 Nf4 51.g3 c3 52.gxf4 c2 53.Bb2 c1=Q+ 54.Bxc1 Rxc1+ 55.Kg2 Rc6 56.Re5  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "8"]
[White "Ljubojevic, Ljubomir"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[WhiteElo "2570"]
[BlackElo "2645"]
[ECO "C00"]

1.e4 e6 2.d3 d5 3.Nd2 Nf6 4.Ngf3 Nc6 5.c3 a5 6.e5 Nd7 7.d4 b6 8.h4 Be7 9.Bb5 Ncb8
10.Nf1 Ba6 11.Bxa6 Rxa6 12.Qd3 h6 13.Ng3 Nf8 14.Nh5 g6 15.Nf4 Qd7 16.h5 g5
17.Ne2 c5 18.Nh2 c4 19.Qc2 Kd8 20.Ng4 Qe8 21.a4 Ra7 22.Rb1 Rc7 23.f4 Nbd7
24.f5 f6 25.fxe6 Nxe6 26.Ne3 fxe5 27.Nxd5 exd4 28.Nxc7 Nxc7 29.cxd4 Qf7 30.b3 Rf8
31.bxc4 Qf2+ 32.Kd1 Qxg2 33.Re1 Na6 34.Rb3 Nb4 35.Qg6 Rf6 36.Qg8+ Kc7 37.Re3 Bd6
38.Bd2 Bf4 39.Nxf4 Rxf4 40.R3e2 Qf3  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "8"]
[White "Mecking, Henrique"]
[Black "Bronstein, David I"]
[Result "1/2-1/2"]
[WhiteElo "2575"]
[BlackElo "2585"]
[ECO "C19"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7 7.a4 Nbc6 8.Nf3 Qc7
9.Ba3 b6 10.Bd3 h6 11.O-O c4 12.Be2 Bb7 13.Re1 O-O-O 14.Bf1 Qd7 15.g3 Rde8
16.Nh4 Kb8 17.f4 Nc8 18.Bh3 g6 19.Rf1 Reg8 20.Bg2 a5 21.Qe1 Ka7 22.g4  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "9"]
[White "Portisch, Lajos"]
[Black "Ivkov, Borislav"]
[Result "1-0"]
[WhiteElo "2645"]
[BlackElo "2535"]
[ECO "D78"]

1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.c4 c6 5.O-O O-O 6.d4 d5 7.Qa4 Nbd7 8.cxd5 Nb6
9.Qa3 cxd5 10.Nc3 Nc4 11.Qb4 e6 12.Bf4 Re8 13.Ne5 Bf8 14.Qb3 Nd6 15.Bg5 Be7
16.Rfd1 Nf5 17.e4 Nxe4 18.Bxe7 Qxe7 19.Nxe4 dxe4 20.Bxe4 Rd8 21.Qc3 Nd6 22.Bg2 Bd7
23.Qa3 Be8 24.Rac1 Kf8 25.d5 exd5 26.Rxd5 f6 27.Nd3 Bc6 28.Re1 Qc7 29.Nf4 Bxd5
30.Bxd5 Re8 31.Ne6+ Rxe6 32.Rxe6 Rd8 33.Rxf6+ Kg7 34.Qf3 Rd7 35.Rf8 Nf5 36.Rg8+ Kh6
37.Be6  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "9"]
[White "Bronstein, David I"]
[Black "Hug, Werner"]
[Result "1-0"]
[WhiteElo "2585"]
[BlackElo "2445"]
[ECO "C05"]

1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.f4 c5 6.c3 Nc6 7.Ndf3 cxd4 8.cxd4 Nb6
9.Ne2 h5 10.Nc3 Bd7 11.Be2 Rc8 12.O-O g6 13.Kh1 a6 14.b3 Ne7 15.Qd2 Nf5 16.Bb2 Bb4
17.a3 Be7 18.Na2 Kf8 19.Bc3 Na8 20.Ba5 Qe8 21.a4 Kg7 22.Bd3 Nh6 23.Qe2 Bd8
24.Bd2 Be7 25.Qe1 Rc7 26.Nc3 Bc6 27.Ne2 Nf5 28.g3 Qc8 29.Nc1 b6 30.Kg1 a5
31.Na2 Bb7 32.Nc3 Rc6 33.Nb5 Qb8 34.Qe2 Nc7 35.Be1 Na6 36.Rd1 Nb4 37.Bb1 Ba6
38.h3 Rh6 39.Qd2 Rc8 40.Kg2 Nc2 41.Bf2 Bxb5 42.axb5 Na3 43.Bd3 Bb4 44.Qe2 Rc3
45.g4 Ne7 46.Bh4 Rxb3 47.Bg5 Rh7 48.f5 gxf5 49.gxf5 Nxf5 50.Nh4 Nxh4+ 51.Bxh4 Qg8
52.Kh2 Kf8 53.Bf6 Bc3 54.Rg1 Rh8 55.Rxg8+ Rxg8 56.Qxh5  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "9"]
[White "Hort, Vlastimil"]
[Black "Biyiasas, Peter"]
[Result "1-0"]
[WhiteElo "2610"]
[BlackElo "2395"]
[ECO "D46"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 c6 5.e3 Be7 6.b3 Nbd7 7.Bd3 O-O 8.O-O b6
9.Bb2 Bb7 10.Qe2 c5 11.Rfd1 cxd4 12.exd4 Re8 13.Rac1 a6 14.Ne5 Bd6 15.Rc2 Qe7
16.Bc1 Bc7 17.Bf4 dxc4 18.bxc4 Nxe5 19.Bxe5 Red8 20.f4 Rd7 21.Rb2 Rad8 22.h3 g6
23.Qf2 Bxe5 24.fxe5 Ne8 25.Be4 Bxe4 26.Nxe4 Rc7 27.Qe2 Rdc8 28.c5 bxc5 29.dxc5 Rd8
30.Rd6 f5 31.exf6 Nxf6 32.Nxf6+ Qxf6 33.Rxd8+ Qxd8 34.Qxe6+ Kg7 35.Qe5+ Kh6
36.Rb4 Qe7 37.Rh4+ Qxh4 38.Qxc7 Qc4 39.Qd6 Qxa2 40.c6 Qb1+ 41.Kh2 Qb3  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "9"]
[White "Keres, Paul"]
[Black "Gheorghiu, Florin"]
[Result "1/2-1/2"]
[WhiteElo "2605"]
[BlackElo "2530"]
[ECO "A48"]

1.d4 Nf6 2.Nf3 g6 3.Bg5 Bg7 4.e3 d6 5.h3 O-O 6.Be2 Nbd7 7.O-O h6 8.Bf4 Qe8
9.c4 e5 10.Bh2 Ne4 11.dxe5 Nxe5 12.Nxe5 Bxe5 13.Bxe5 Qxe5 14.Nd2 Bf5  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "9"]
[White "Polugaevsky, Lev"]
[Black "Mecking, Henrique"]
[Result "1/2-1/2"]
[WhiteElo "2640"]
[BlackElo "2575"]
[ECO "D41"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 c5 5.cxd5 Nxd5 6.e4 Nxc3 7.bxc3 cxd4 8.cxd4 Nc6
9.Bc4 b5 10.Be2 Bb4+ 11.Bd2 Qa5 12.d5 exd5 13.exd5 Ne7 14.O-O Bxd2 15.Nxd2 O-O
16.Nb3 Qd8 17.Bxb5 Bb7 18.Nc5 Qxd5 19.Qxd5 Bxd5 20.Rfe1 Rfc8 21.Rac1 Nc6
22.Na6 Nd4 23.Nc7 Rab8 24.Nxd5 Rxc1 25.Rxc1 Nxb5 26.h3 f6 27.a4 Nd6 28.Rc7 Rb7
29.Rc6 Rd7 30.Nc3 Kf7 31.a5 Ke7 32.a6 Kd8  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "9"]
[White "Reshevsky, Samuel Herman"]
[Black "Ljubojevic, Ljubomir"]
[Result "1-0"]
[WhiteElo "2565"]
[BlackElo "2570"]
[ECO "A42"]

1.d4 g6 2.c4 Bg7 3.e4 d6 4.Nc3 Nd7 5.Nf3 e5 6.Be2 c6 7.O-O Nh6 8.Rb1 O-O
9.b4 f5 10.Bg5 Qe8 11.d5 Nf7 12.dxc6 bxc6 13.Bc1 Bb7 14.exf5 gxf5 15.Nh4 e4
16.Rb3 Qe6 17.Nxf5 Qxf5 18.Bg4 Qg6 19.Bxd7 Ne5 20.Bh3 Rf3 21.Ne2 Nd3 22.Nf4 Rxf4
23.Rxd3 exd3 24.Bxf4 Bc8 25.Bxc8 Rxc8 26.Re1 Rf8 27.Qd2 Qf5 28.g3 d5 29.c5 h5
30.h4 Bd4 31.Kg2 Rf7 32.f3 Kh7 33.Rd1 Be5 34.Bxe5 Qxe5 35.Qxd3+ Kg8 36.f4 Qb2+
37.Rd2 Qxb4 38.Qg6+ Kf8 39.Qh6+ Rg7 40.Re2 Qxc5 41.Qh8+ Kf7 42.Qe8+ Kf6 43.Qe6+  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "9"]
[White "Savon, Vladimir A"]
[Black "Kagan, Shimon"]
[Result "1-0"]
[WhiteElo "2570"]
[BlackElo "2405"]
[ECO "A41"]

1.c4 g6 2.d4 Bg7 3.g3 d6 4.Bg2 Nc6 5.d5 Nd4 6.e3 Nf5 7.Ne2 e5 8.dxe6 fxe6
9.Nbc3 Nf6 10.e4 Ne7 11.h3 O-O 12.Be3 e5 13.O-O Be6 14.Nd5 c5 15.Nxe7+ Qxe7
16.Qd3 Ne8 17.Nc3 Rb8 18.Rfd1 a6 19.Rab1 b5 20.cxb5 axb5 21.b4 c4 22.Qd2 Qd7
23.Kh2 Rf7 24.Bf1 Bf8 25.a4 Nc7 26.Qc2 Qc6 27.Ra1 bxa4 28.Rxa4 Nb5 29.Nd5 c3
30.Ra5 Nd4 31.Bxd4 exd4 32.Rxd4 Bg7 33.Rc4 Qe8 34.Kg1 Qd8 35.Nxc3 Rxb4 36.Rxb4 Qxa5
37.Rb8+ Bf8 38.Nd5 Qa7 39.Rb4 Bxd5 40.exd5 Bh6 41.Re4 Bg7 42.Qd2 Qa1 43.Qe3 Rf8
44.Kg2 Qc3 45.Bd3 Bh6 46.f4 Bg7 47.h4 Qb2+ 48.Be2 Qc3 49.Qb6 Rf6 50.Qd8+ Bf8
51.Bf3 Rf7 52.h5 Qf6 53.Qb8 g5 54.Bg4 Qc3 55.Be6 Qc2+ 56.Kf3 Qd3+ 57.Re3 Qd1+
58.Kf2 Qxh5 59.Qe8 Qh2+ 60.Kf3 Qh1+ 61.Kg4 Qd1+ 62.Rf3 h5+ 63.Kxg5 Kh8 64.Qxf7 Be7+
65.Kh6  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "9"]
[White "Smyslov, Vassily"]
[Black "Geller, Efim P"]
[Result "1/2-1/2"]
[WhiteElo "2600"]
[BlackElo "2585"]
[ECO "D59"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.Nc3 Be7 5.Bg5 O-O 6.e3 h6 7.Bh4 b6 8.cxd5 Nxd5
9.Bxe7 Qxe7 10.Rc1 Bb7 11.Bd3 Rc8 12.O-O c5 13.dxc5 Rxc5 14.Nxd5 Bxd5 15.Rxc5 Qxc5
16.Qd2  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "9"]
[White "Tan Lian Ann"]
[Black "Panno, Oscar"]
[Result "1/2-1/2"]
[WhiteElo "2365"]
[BlackElo "2580"]
[ECO "B40"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Bd3 Nc6 6.Nxc6 bxc6 7.O-O d5 8.exd5 cxd5
9.c4 Be7 10.cxd5 Qxd5 11.Nc3 Qb7 12.Bg5 Bd7 13.Qe2 Bc6 14.Bb5 O-O 15.Bxc6 Qxc6
16.Rac1 Qb7 17.Rc2 h6 18.Bh4 Rfd8 19.Rfc1 Rd4 20.Bg3 Rad8 21.h3 Rd3 22.Be5 a5
23.Bxf6 Bxf6 24.Ne4 Be7 25.Rc7 Rd1+ 26.Rxd1 Rxd1+ 27.Qxd1 Qxc7 28.Qd4 f5
29.Nc3 Bc5 30.Qd2 Kf7 31.Ne2 Bb4 32.Qe3 Kf6 33.Nf4 Qd6 34.Nd3 Qd5 35.Nxb4 Qd1+
36.Kh2 Qd6+ 37.f4 axb4 38.a3 g5 39.g3 bxa3 40.bxa3 Qd5 41.fxg5+ hxg5  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "10"]
[White "Gheorghiu, Florin"]
[Black "Smyslov, Vassily"]
[Result "0-1"]
[WhiteElo "2530"]
[BlackElo "2600"]
[ECO "C68"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Qe7 6.b3 Bg4 7.h3 Bh5 8.Bb2 f6
9.d3 Nh6 10.Nbd2 g5 11.g4 Bg6 12.d4 Nf7 13.dxe5 fxe5 14.Nc4 Bg7 15.Nfd2 O-O-O
16.Qe2 h5 17.Ne3 hxg4 18.hxg4 Qf6 19.f3 Rh3 20.Ng2 Bf8 21.Kf2 Rxd2 22.Qxd2 Qxf3+
23.Ke1 Qxe4+ 24.Qe2 Bb4+ 25.c3 Qxe2+ 26.Kxe2 Bd3+ 27.Kd2 Bxf1 28.Rxf1 Bc5
29.b4 Rh2 30.bxc5 Rxg2+ 31.Kd3 Nd8 32.Bc1 Rxg4 33.Rf5 e4+ 34.Kd4 Kd7 35.Be3 Ke7
36.Rf1 Nf7 37.Rb1 Ke6 38.Rxb7 Nh6 39.Kc4 Nf5 40.Bd4 e3 41.Kd3 Rg2 42.Rb1 Rd2+  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "10"]
[White "Biyiasas, Peter"]
[Black "Geller, Efim P"]
[Result "1-0"]
[WhiteElo "2395"]
[BlackElo "2585"]
[ECO "B52"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.O-O Nc6 6.b3 Nf6 7.Re1 g6 8.Bb2 Bg7
9.c4 e5 10.Nc3 O-O 11.d3 Nh5 12.Nd5 Ne7 13.Bc1 Nxd5 14.cxd5 Nf4 15.Bxf4 exf4
16.Rc1 Rae8 17.Qd2 f5 18.Ng5 fxe4 19.dxe4 Qg4 20.Nf3 Qh5 21.h3 b6 22.b4 Be5
23.a4 g5 24.Nxe5 Rxe5 25.f3 Qg6 26.Kf2 h5 27.Rh1 Qg7 28.bxc5 bxc5 29.Qc3 Rb8
30.Rb1 Ree8 31.Qxg7+ Kxg7 32.Ke2 Kf6 33.Kd3 Ke5 34.Kc4 Rh8 35.a5 Rhc8 36.Rhg1 Rb4+
37.Rxb4 cxb4+ 38.Kb5 Kd4 39.Ka6 b3 40.Rd1+  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "10"]
[White "Panno, Oscar"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[WhiteElo "2580"]
[BlackElo "2645"]
[ECO "A28"]

1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.e3 Bb4 5.Qc2 O-O 6.d3 Re8 7.Bd2 d6 8.Be2 Bf5
9.O-O e4 10.Ne1 Bg6 11.Rd1 a5 12.Nd5 exd3 13.Bxd3 Ne4 14.Nf3 Bxd2 15.Nxd2 Nf6
16.Bxg6 hxg6 17.Qb3 b6 18.Nf3 a4 19.Qc2 Qd7 20.Nd4 Ra5 21.Ne2 Ne5 22.Nxf6+ gxf6
23.b3 Kg7 24.Rd5 Raa8 25.Rfd1 axb3 26.axb3 Rh8 27.Ng3 Rh7 28.h3 Qe6 29.Qe2 f5
30.f4 Nd7 31.e4 Nf6 32.Qb2 Kg8 33.R5d4 fxe4 34.Re1 Re8 35.Nxe4 Nxe4 36.Rdxe4 Qxe4
37.Rxe4 Rxe4 38.Qf6 Re8 39.h4 Rh5 40.g4 Ra5 41.f5  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "10"]
[White "Hort, Vlastimil"]
[Black "Tan Lian Ann"]
[Result "1/2-1/2"]
[WhiteElo "2610"]
[BlackElo "2365"]
[ECO "D61"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 Be7 5.Bg5 O-O 6.e3 c6 7.Qc2 Nbd7 8.Rd1 Re8
9.a3 dxc4 10.Bxc4 Nd5 11.Bxe7 Qxe7 12.O-O Nxc3 13.Qxc3 b6 14.e4 Bb7 15.Rfe1 Rac8
16.b4 Red8 17.Rc1 Nf6 18.Qc2 c5 19.dxc5 bxc5 20.b5 h6 21.h3 Qc7 22.Re3 Ra8
23.Bf1 a6 24.a4 Qa5 25.Rb1 axb5 26.Bxb5 Rac8 27.Ne5 Qc7 28.Nc4 Rd4 29.Rbe1 Qf4
30.e5 Nd5 31.Rg3 Nb4 32.Qc1 Qxc1 33.Rxc1 Ba6 34.Nd6 Ra8 35.Rxc5 Bxb5 36.axb5 Rd1+
37.Kh2 Nd3 38.Rc8+ Rxc8 39.Nxc8 Nxe5 40.Rb3 Rc1 41.Nd6 Nc4 42.Nxc4 Rxc4 43.b6 Rc8
44.b7 Rb8 45.Kg3 Kf8 46.Kf4 Ke7 47.h4 Kd6 48.h5 Kc6 49.Ke5 Kd7 50.Kf4 Kc6
51.Rg3 Rxb7 52.Rxg7 Rb4+ 53.Kf3 Rh4 54.Rxf7 Rxh5 55.g4 Rg5 56.Rh7 Rg6 57.Kg3 e5
58.Kf3 Kd5 59.Rd7+ Ke6 60.Ra7 Kd5 61.Rf7 Rg5 62.Rh7 Rg6 63.Kg3 Rf6 64.Rd7+ Ke4
65.Ra7 Kd5 66.Ra1 e4 67.Ra5+ Kd4 68.Rf5 Rxf5 69.gxf5 Ke5 70.Kg4 Kf6 71.Kf4 h5  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "10"]
[White "Hug, Werner"]
[Black "Polugaevsky, Lev"]
[Result "0-1"]
[WhiteElo "2445"]
[BlackElo "2640"]
[ECO "B40"]

1.e4 c5 2.Nf3 e6 3.Nc3 Nc6 4.g3 d5 5.exd5 exd5 6.Bg2 d4 7.Ne2 g6 8.O-O Bg7
9.c4 Nf6 10.d3 h6 11.a3 a5 12.Re1 O-O 13.Qc2 Bf5 14.h3 Re8 15.Bd2 g5 16.g4 Bg6
17.Ng3 Qd7 18.Rxe8+ Nxe8 19.Re1 Nd6 20.Nh2 Ne5 21.Ne4 Nxe4 22.Bxe4 Bxe4 23.Rxe4 f5
24.gxf5 Qxf5 25.f4 Ng6 26.fxg5 Qxh3 27.gxh6 Be5 28.Ng4 Rf8 29.Qd1 Nh4  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "10"]
[White "Ivkov, Borislav"]
[Black "Reshevsky, Samuel Herman"]
[Result "1/2-1/2"]
[WhiteElo "2535"]
[BlackElo "2565"]
[ECO "B52"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.O-O Nc6 6.c3 Nf6 7.d4 Nxe4 8.d5 Ne5
9.Nxe5 dxe5 10.Re1 Nd6  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "10"]
[White "Kagan, Shimon"]
[Black "Bronstein, David I"]
[Result "1-0"]
[WhiteElo "2405"]
[BlackElo "2585"]
[ECO "B91"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.g3 e5 7.Nde2 Nbd7 8.a4 Be7
9.Bg2 O-O 10.O-O Rb8 11.h3 b5 12.axb5 axb5 13.Ra7 Bb7 14.Be3 Nb6 15.b3 Nc8
16.Ra2 Qd7 17.Qd3 Bc6 18.Nd5 b4 19.Qd2 Bd8 20.g4 Qb7 21.Ng3 Nxd5 22.exd5 Bd7
23.Rfa1 Qc7 24.Be4 g6 25.Bh6 Re8 26.Kh2 Bf6 27.Rg1 Qd8 28.Ra6 Bh8 29.Nf5 Qc7
30.h4 Bb5 31.Raa1 Qc3 32.Qxc3 bxc3 33.Ne3 Bf6 34.Bg5 Bxg5 35.hxg5 Nb6 36.Nd1 Rec8
37.Rg3 Be2 38.Nxc3 Bxg4 39.Nb5 Bf5 40.Nxd6 Bxe4 41.Nxe4 Nxd5 42.c4 Nf4 43.Ra7 Rb6
44.Rc3 h6 45.c5 Re6 46.b4 hxg5 47.Rca3 Kg7 48.Ra8 Ree8 49.Rxc8 Rxc8 50.b5 Ne6
51.c6 Rb8 52.Nd6 e4 53.Ra7 Kf6 54.c7 Nxc7 55.Rxc7 Ke6 56.Nb7 f5 57.b6 Kd5
58.Kg2 Kd4 59.Rd7+ Kc3 60.Nc5 Kc4 61.Rc7 Kb5 62.Nd7 Rxb6 63.Nxb6 Kxb6 64.Rg7 Kc5
65.Rxg6 Kd4 66.Rxg5 e3 67.fxe3+ Kxe3 68.Rxf5  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "10"]
[White "Ljubojevic, Ljubomir"]
[Black "Savon, Vladimir A"]
[Result "1-0"]
[WhiteElo "2570"]
[BlackElo "2570"]
[ECO "B10"]

1.e4 c6 2.d3 d5 3.Nd2 g6 4.Ngf3 Bg7 5.c3 e5 6.a4 Ne7 7.a5 O-O 8.Be2 h6 9.O-O f5
10.b3 Kh7 11.Ba3 Rg8 12.Re1 g5 13.exf5 Bxf5 14.Nf1 Nd7 15.Ng3 Bg6 16.a6 b6
17.d4 e4 18.Nd2 Nf6 19.f3 Re8 20.fxe4 dxe4 21.Nc4 Ned5 22.Bb2 Qc7 23.Ne5 Rxe5
24.dxe5 Qxe5 25.Rc1 Nf4 26.Ba1 Qe7 27.b4 Rd8 28.Qb3 Nd3 29.Bxd3 Rxd3 30.Rcd1 Qd7
31.Qc2 Ng4 32.Qe2 Nf6 33.c4 Rxd1 34.Rxd1 Qe7 35.Bxf6 Bxf6 36.Nxe4 Bxe4 37.Re1 Bd4+
38.Kh1 Bxg2+ 39.Kxg2  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "10"]
[White "Mecking, Henrique"]
[Black "Keres, Paul"]
[Result "1/2-1/2"]
[WhiteElo "2575"]
[BlackElo "2605"]
[ECO "C73"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.Bxc6+ bxc6 6.d4 exd4 7.Qxd4 c5 8.Qd3 Ne7
9.Nc3 Rb8 10.b3 Ng6 11.O-O Be7 12.Nd5 Bf6 13.Nxf6+ Qxf6 14.Bg5 Qe6 15.e5 d5
16.Rad1 Bb7 17.Rfe1  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "11"]
[White "Geller, Efim P"]
[Black "Gheorghiu, Florin"]
[Result "1-0"]
[WhiteElo "2585"]
[BlackElo "2530"]
[ECO "B25"]

1.Nf3 c5 2.g3 Nc6 3.Bg2 g6 4.O-O Bg7 5.e4 d6 6.d3 e5 7.Nc3 Nge7 8.a3 O-O
9.Rb1 Nd4 10.Ne1 Be6 11.Nd5 Nxd5 12.exd5 Bd7 13.c3 Nf5 14.Nf3 a5 15.Nd2 b5
16.Ne4 b4 17.a4 Qb6 18.Ra1 Rab8 19.Kh1 Ne7 20.Nd2 bxc3 21.bxc3 Qa6 22.Nc4 Bc8
23.Na3 e4 24.dxe4 Bxc3 25.Bh6 Rd8 26.Nb5 Bh8 27.Re1 Bd7 28.Bf1 Qb6 29.Rb1 Nc8
30.Bf4 Bxb5 31.Rxb5 Qc7 32.Rxb8 Qxb8 33.Qc2 Nb6 34.Rb1 Qc7 35.Bb5 Nd7 36.Bd2 Ne5
37.Kg2 Rb8 38.h3 Rd8 39.f4 Nd7 40.Bc6 Rb8 41.Bxd7  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "11"]
[White "Bronstein, David I"]
[Black "Ljubojevic, Ljubomir"]
[Result "1-0"]
[WhiteElo "2585"]
[BlackElo "2570"]
[ECO "B03"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.f4 dxe5 6.fxe5 c5 7.d5 e6 8.Nc3 exd5
9.cxd5 c4 10.Nf3 Bg4 11.Qd4 Bxf3 12.gxf3 Bb4 13.Bxc4 O-O 14.Rg1 g6 15.Bg5 Qc7
16.Bb3 Bc5 17.Qf4 Bxg1 18.d6 Qc8 19.Ke2 Bc5 20.Ne4 N8d7 21.Rc1 Qc6 22.Rxc5 Nxc5
23.Nf6+ Kh8 24.Qh4 Qb5+ 25.Ke3 h5 26.Nxh5 Qxb3+ 27.axb3 Nd5+ 28.Kd4 Ne6+
29.Kxd5 Nxg5 30.Nf6+ Kg7 31.Qxg5 Rfd8 32.e6 fxe6+ 33.Kxe6 Rf8 34.d7 a5 35.Ng4 Ra6+
36.Ke5 Rf5+ 37.Qxf5 gxf5 38.d8=Q fxg4 39.Qd7+ Kh6 40.Qxb7 Rg6 41.f4  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "11"]
[White "Keres, Paul"]
[Black "Hug, Werner"]
[Result "1-0"]
[WhiteElo "2605"]
[BlackElo "2445"]
[ECO "B36"]

1.c4 Nf6 2.Nc3 c5 3.Nf3 Nc6 4.d4 cxd4 5.Nxd4 g6 6.e4 Nxd4 7.Qxd4 d6 8.Be2 Bg7
9.Bd2 O-O 10.Qe3 Be6 11.O-O Qb6 12.b3 Qxe3 13.Bxe3 Rfc8 14.Rac1 a6 15.f3 Nd7
16.f4 f5 17.exf5 gxf5 18.Bf3 Rc7 19.Rfe1 Nf8 20.Bb6 Rc6 21.Bf2 Kf7 22.Bxc6 bxc6
23.c5 Nd7 24.cxd6 exd6 25.Red1 Bxc3 26.Rxc3 Bd5 27.Rh3 Nf8 28.Rh5 Ke6 29.Rh6+ Ng6
30.h4 Kf7 31.Rxh7+ Kg8 32.Rh5 Rf8 33.Rd3 Rf6 34.Rg3 c5 35.Rxf5 Rxf5 36.Rxg6+ Kf7
37.Rxd6 c4 38.g4 Ke7 39.Bc5  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "11"]
[White "Polugaevsky, Lev"]
[Black "Kagan, Shimon"]
[Result "1-0"]
[WhiteElo "2640"]
[BlackElo "2405"]
[ECO "A42"]

1.d4 g6 2.c4 Bg7 3.Nc3 d6 4.e4 e5 5.Nf3 Bg4 6.d5 Nd7 7.h3 Bxf3 8.Qxf3 a5
9.b3 Bh6 10.Ba3 Qg5 11.Rd1 f5 12.g3 Qf6 13.Bg2 b6 14.h4 Ne7 15.h5 Kf7 16.Nb5 Rac8
17.Bh3 Kg7 18.Rh2 Rhf8 19.hxg6 hxg6 20.Ke2 Nc5 21.Bxc5 bxc5 22.Rdh1 Rh8 23.Bg2 Qg5
24.Qc3 fxe4 25.Bxe4 Nf5 26.Bxf5 Qxf5 27.Qd3 Qg4+ 28.Kf1 Qd7 29.Rh4 Rcf8 30.R1h2 Rf7
31.Qe4 Rf6 32.Nc3 Qf5 33.Qe2 Rff8 34.Kg2 Bg5 35.Rxh8 Rxh8 36.Rxh8 Kxh8 37.Qe4 Kg7
38.Qxf5 gxf5 39.Nb5 e4 40.Kf1 Kf6 41.Ke2 Bc1 42.Nxc7 Bb2 43.Nb5 Be5 44.f4 exf3+
45.Kxf3 Kg5 46.Na7 Kf6 47.Nc6 Bc3 48.Nd8 Ke7 49.Nb7 Bd2 50.Ke2 Bb4 51.Ke3 Bc3
52.a4 Be5 53.Nxa5 Bxg3 54.Nc6+ Kd7 55.a5 Kc7 56.Ne7 f4+ 57.Kf3 Be1 58.a6 Kb6
59.Nc8+ Kxa6 60.Kxf4 Ka5 61.Nxd6 Kb4 62.Ke4 Ka5 63.Nf5 Kb4 64.d6 Kxb3 65.Kd5  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "11"]
[White "Portisch, Lajos"]
[Black "Hort, Vlastimil"]
[Result "1/2-1/2"]
[WhiteElo "2645"]
[BlackElo "2610"]
[ECO "D18"]

1.Nf3 d5 2.d4 Nf6 3.c4 c6 4.Nc3 dxc4 5.a4 Bf5 6.e3 e6 7.Bxc4 Bb4 8.O-O O-O
9.Nh4 Bg4 10.f3 Bh5 11.g4 Bg6 12.e4 Nbd7 13.Ng2 c5 14.Na2 Ba5 15.dxc5 Bc7
16.Be3 Qe7 17.b4 Rfd8 18.Qb3 a5 19.Rad1 axb4 20.Qxb4 Ne5 21.Be2 Nc6 22.Qc4 Nd7
23.f4 f6 24.Nc3 Na5 25.Qb5 Be8 26.Bf2 Rdc8 27.Rd2 b6  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "11"]
[White "Reshevsky, Samuel Herman"]
[Black "Panno, Oscar"]
[Result "1-0"]
[WhiteElo "2565"]
[BlackElo "2580"]
[ECO "D93"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bf4 Bg7 5.e3 O-O 6.Qb3 c6 7.Nf3 Qa5 8.Nd2 Nbd7
9.Be2 Nh5 10.Bxh5 dxc4 11.Nxc4 Qxh5 12.O-O b6 13.Rfd1 Ba6 14.h3 g5 15.Bg3 g4
16.hxg4 Qxg4 17.e4 Qe6 18.Ne3 Qxb3 19.axb3 Bb7 20.Nf5 Rfe8 21.b4 Bf8 22.b5 cxb5
23.Nxb5 Bxe4 24.Ne3 Red8 25.Nc7 Rab8 26.f3 Bg6 27.Rxa7 Rbc8 28.Ncd5 Nf6 29.Nxe7+ Bxe7
30.Rxe7 Nd5 31.Nxd5 Rxd5 32.Be5 b5 33.b4 Kf8 34.Rb7 Bf5 35.Ra1 Ke8 36.Ra6 Rc4
37.Rab6 Bc8 38.Rb8 Kd7 39.Rxb5 Rxb5 40.Rxb5 Ba6 41.Rd5+ Ke7 42.b5 Bb7 43.Rd6  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "11"]
[White "Savon, Vladimir A"]
[Black "Ivkov, Borislav"]
[Result "1/2-1/2"]
[WhiteElo "2570"]
[BlackElo "2535"]
[ECO "D58"]

1.c4 Nf6 2.Nf3 e6 3.Nc3 d5 4.d4 Be7 5.Bg5 h6 6.Bh4 O-O 7.e3 b6 8.Be2 Bb7
9.O-O Nbd7 10.Rc1 c5 11.Bg3 Ne4 12.Nxe4 dxe4 13.Ne5 Nxe5 14.Bxe5 Bf6 15.Bxf6 Qxf6  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "11"]
[White "Smyslov, Vassily"]
[Black "Mecking, Henrique"]
[Result "0-1"]
[WhiteElo "2600"]
[BlackElo "2575"]
[ECO "A29"]

1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.g3 Bb4 5.Bg2 O-O 6.Nd5 e4 7.Nh4 Bc5 8.O-O Re8
9.d3 exd3 10.Qxd3 Ne5 11.Qc2 c6 12.Nc3 Nxc4 13.Na4 Bf8 14.Qxc4 b5 15.Qd4 bxa4
16.e4 Ba6 17.Re1 Qb6 18.Be3 Bb4 19.Qxb6 axb6 20.Red1 Be2 21.Rd4 c5 22.Rxb4 cxb4
23.e5 Ng4 24.Bxa8 Nxe3 25.Re1 Bc4 26.Be4 Nd5 27.a3 bxa3 28.bxa3 Nc3 29.Bf3 f6
30.Rc1 Rxe5 31.Kg2 Rc5 32.Rxc3 Bf1+ 33.Kxf1 Rxc3 34.Bd5+ Kf8 35.Ke2 Rxa3
36.Kd2 b5 37.Nf5 b4 38.Ne3 b3 39.Kc3 Ra2 40.Kb4 Rxf2 41.Kxa4 b2 42.Ba2 Rxh2
43.Kb3 Rh3 44.Nf1 Rh1 45.Nd2 Rg1  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "11"]
[White "Tan Lian Ann"]
[Black "Biyiasas, Peter"]
[Result "1/2-1/2"]
[WhiteElo "2365"]
[BlackElo "2395"]
[ECO "C50"]

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.O-O d6 6.Nxd4 Be7 7.Nc3 O-O 8.Nxc6 bxc6
9.Bf4 Nd7 10.Ne2 Nb6 11.Bd3 c5 12.c4 Bf6 13.Qc2 g6 14.Rab1 a5 15.Rfd1 Qe7
16.Nc3 Bg7 17.Kh1 Bd7 18.Re1 Rfe8 19.Be3 Bc6 20.f3 Be5 21.Qf2 Bxc3 22.bxc3 Bb7
23.Bf4 f6 24.Qg3 Rad8 25.Rb5 Ba6 26.Rxa5 Bxc4 27.Bb1 Ra8 28.Rxa8 Rxa8 29.h4 Bxa2
30.h5 Qf7 31.hxg6 hxg6 32.Bc2 Qh7+ 33.Kg1 Bf7 34.Bc1 Qh5 35.f4 Ra1 36.Bd1 Qh6
37.Bg4 Qg7 38.Kh2 Nc4 39.Bh3 g5 40.Qg4 gxf4 41.Qxf4 Qg5 42.Qxg5+ fxg5 43.Rh1 Ra2
44.Bxg5 Re2 45.Ra1 Rxe4 46.Ra7 Kg7 47.Rxc7 Kg6 48.Be7 Be6 49.Bxe6 Rxe6 50.Bf8 Kf5
51.Rf7+ Ke4 52.Re7 Rxe7 53.Bxe7 Kf5 54.Kh3 Ke6 55.Bh4 Ne5 56.g4 d5 57.Bf2  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "12"]
[White "Biyiasas, Peter"]
[Black "Gheorghiu, Florin"]
[Result "0-1"]
[WhiteElo "2395"]
[BlackElo "2530"]
[ECO "B42"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Nf6 6.O-O Qc7 7.Nd2 Be7 8.Qe2 d6
9.c3 Nbd7 10.f4 g6 11.N2f3 e5 12.fxe5 dxe5 13.Nb3 h6 14.Kh1 b6 15.Be3 Bb7
16.Bg1 O-O 17.Bc2 Kg7 18.Rad1 Rad8 19.Rd2 Nc5 20.Nxc5 Bxc5 21.Rfd1 Rxd2 22.Rxd2 Bxg1
23.Kxg1 Re8 24.h3 Qc5+ 25.Kh2 Qc6 26.a4 Re7 27.Kg1 b5 28.a5 Nxe4 29.Bxe4 Qxe4
30.Qxe4 Bxe4 31.Rd6 Bb7 32.Rb6 e4 33.Ne5 e3 34.Nd3 Rd7 35.Ne1 Be4 36.Kf1 Rd2
37.b4 Bd5 38.Nf3 Bc4+ 39.Kg1 Rd1+  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "12"]
[White "Tan Lian Ann"]
[Black "Portisch, Lajos"]
[Result "0-1"]
[WhiteElo "2365"]
[BlackElo "2645"]
[ECO "B53"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 Nc6 5.Bb5 Qd7 6.Bxc6 bxc6 7.O-O e5 8.Qd3 Be7
9.c4 Ba6 10.Rd1 Nf6 11.Bg5 Rd8 12.Nbd2 O-O 13.b4 h6 14.Bxf6 Bxf6 15.a4 Bb7
16.b5 Qc7 17.Nf1 d5 18.Ne3 dxe4 19.Qxe4 cxb5 20.Nd5 Bxd5 21.cxd5 Qc4 22.Qxc4 bxc4
23.Rac1 e4 24.Nd2 Rxd5 25.Nxe4 Rxd1+ 26.Rxd1 Bb2 27.Rd2 c3 28.Rc2 Rc8 29.Kf1 Rc4
30.f3 f5 31.Nf2 Rxa4 32.Nd1 Ba1 33.Rc1 Ra3 34.Rc2 Kf7 35.Ke2 Ke6 36.Kd3 g6
37.Kc4 Ra4+ 38.Kb3 Rd4 39.Re2+ Kd6 40.Ne3 Rd3 41.Nc4+ Kc5 42.Ra2 Rd1 43.Rxa7 Rb1+
44.Kc2 Rg1 45.Kb3 f4 46.Ra2 Kd4 47.Ra7 Rb1+ 48.Kc2 Rb4 49.Na5 Rb2+ 50.Kc1 Rxg2
51.Nb3+ Kd3 52.Rd7+ Ke2 53.Nd4+ Kf2 54.h4 Bb2+ 55.Kb1 Rg1+  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "12"]
[White "Hort, Vlastimil"]
[Black "Reshevsky, Samuel Herman"]
[Result "1-0"]
[WhiteElo "2610"]
[BlackElo "2565"]
[ECO "E95"]

1.c4 g6 2.d4 Bg7 3.Nc3 d6 4.e4 Nf6 5.Be2 O-O 6.Nf3 e5 7.O-O Nbd7 8.Re1 c6
9.Bf1 Qb6 10.d5 Nc5 11.Rb1 cxd5 12.cxd5 a5 13.h3 Bd7 14.Be3 a4 15.Nd2 Qc7
16.Rc1 Rfc8 17.b4 axb3 18.Nxb3 b6 19.a4 Qd8 20.Nxc5 bxc5 21.Qc2 Nh5 22.Rb1 f5
23.Rb7 fxe4 24.Ra1 Nf4 25.Nxe4 Bf5 26.Qc4 Rcb8 27.Rab1 Rxb7 28.Rxb7 Bc8 29.Rb1 Ba6
30.Qc2 Bxf1 31.Kxf1 Qa5 32.Kg1 Bf8 33.Rb7 Ra7 34.Rxa7 Qxa7 35.g3 Nh5 36.Qc4 Ng7
37.g4 Ne8 38.Qb5 Qa8 39.Qd7 Qxd5 40.Qxe8 Qxe4 41.Bh6 Qe1+  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "12"]
[White "Hug, Werner"]
[Black "Smyslov, Vassily"]
[Result "0-1"]
[WhiteElo "2445"]
[BlackElo "2600"]
[ECO "B23"]

1.e4 c5 2.Nc3 Nc6 3.f4 e6 4.Nf3 Nge7 5.d4 Nxd4 6.Nxd4 cxd4 7.Qxd4 Nc6 8.Qf2 d5
9.exd5 exd5 10.Bd3 Be7 11.Bd2 O-O 12.O-O-O d4 13.Ne4 Qd5 14.c4 dxc3 15.Bxc3 Bf5
16.Bb1 Qc4 17.Qg3 g6 18.Nd6 Bxd6 19.Rxd6 Nb4 20.Bxf5 Nxa2+ 21.Kc2 Nxc3 22.Qxc3 Qxf4
23.Rd5 gxf5 24.Rd4 Qg5 25.Kb1 Rac8 26.Qf3 b6 27.Rd5 Qg6 28.Rxf5 Rc5 29.g4 Rd8
30.Qe4 Rdd5 31.Rhf1 Re5 32.Qd3 h6 33.Qd8+ Kh7 34.Qd3 Rxf5 35.gxf5 Qf6 36.Ka1 b5
37.Qd7 b4 38.Kb1 a5 39.Qd1 Qe5 40.Qd3 Qd5 41.Qe2 b3 42.f6 Rc4 43.Rf3 Re4  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "12"]
[White "Ivkov, Borislav"]
[Black "Bronstein, David I"]
[Result "1/2-1/2"]
[WhiteElo "2535"]
[BlackElo "2585"]
[ECO "A55"]

1.d4 Nf6 2.c4 d6 3.Nc3 c6 4.e4 e5 5.Nf3 Nbd7 6.Be2 a6 7.O-O Qc7 8.Re1 Be7
9.a3 O-O 10.Bf1 b5 11.Bg5 Nb6 12.cxb5 axb5 13.Rc1 Qb8 14.h3 Bd7 15.Bh4 Re8
16.Qc2 Be6 17.Bg3  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "12"]
[White "Kagan, Shimon"]
[Black "Keres, Paul"]
[Result "0-1"]
[WhiteElo "2405"]
[BlackElo "2605"]
[ECO "C68"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Qd6 6.d4 exd4 7.Qxd4 Qxd4 8.Nxd4 Bd7
9.Be3 O-O-O 10.Nd2 Ne7 11.N2f3 f6 12.h3 c5 13.Ne2 Nc6 14.Rad1 Re8 15.Nc3 Bd6
16.Rfe1 Be6 17.a3 b6 18.Nd5 Bxd5 19.exd5 Ne7 20.c3 Nf5 21.Bc1 Kd7 22.Kf1 Rxe1+
23.Rxe1 b5 24.Rd1 Re8 25.g4 Ne7 26.Be3 Nc8 27.b4 c4 28.a4 bxa4 29.Nd2 Nb6
30.Bxb6 cxb6 31.Nxc4 b5 32.Na5 Re4 33.Rd3 Be5 34.f3 Rf4 35.Ke2 a3 36.Kd2 a2
37.Nb3 a5 38.d6 axb4 39.Nc5+ Kc6  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "12"]
[White "Ljubojevic, Ljubomir"]
[Black "Polugaevsky, Lev"]
[Result "1/2-1/2"]
[WhiteElo "2570"]
[BlackElo "2640"]
[ECO "B44"]

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 a6 10.b3 b6 11.Bb2 Bb7 12.Qd3 d5 13.exd5 exd5 14.Nxd5 Nxd5 15.cxd5 Nb4
16.Qg3 Bf6 17.Bxf6 Qxf6 18.Nc3 Nxd5 19.Ne4 Qe7 20.Bf3 Nb4 21.Nf6+ Qxf6 22.Bxb7 Rad8
23.Rad1 Nxa2 24.Rxd8 Rxd8 25.Bxa6 Nc3 26.Qc7 b5 27.g3 h5 28.h4 g6 29.Kg2 Kg7
30.Bb7 Rd2 31.Qc5 Qd4 32.Qxd4+ Rxd4 33.Rc1 b4 34.Ba6 Rd2 35.Kf3  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "12"]
[White "Mecking, Henrique"]
[Black "Geller, Efim P"]
[Result "1/2-1/2"]
[WhiteElo "2575"]
[BlackElo "2585"]
[ECO "B44"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nb5 d6 6.c4 a6 7.N5c3 Nf6 8.Be2 Be7
9.O-O O-O 10.Na3 b6 11.Be3 Bb7 12.f3 Re8 13.Qb3 Nd7 14.Rfd1 Nc5 15.Qc2 Bf6
16.Rab1 Nb4 17.Qd2 d5 18.Nc2 Nxc2 19.Qxc2 Rc8 20.Bf2 Bxc3 21.Qxc3 Qg5 22.exd5 exd5
23.Re1 dxc4 24.Bxc4 Ne6 25.Qb3 Bxf3 26.Qxf3 Rxc4 27.Bxb6 Qb5 28.Be3 Rc2 29.Rf1 Rf8
30.Rf2 Qa4 31.Qd1 Rfc8 32.Rxc2 Rxc2 33.Rc1 Rxc1 34.Qxc1 h5 35.a3 a5 36.Qd2 Qb3
37.Kf2 a4 38.Qe2 Qd5 39.Qc2 Qb5 40.Qc8+ Kh7 41.Qc2+ g6 42.Qc3 Qf5+ 43.Kg1 h4
44.b4 h3 45.Bc1 hxg2 46.Kxg2 Qe4+ 47.Kf2 Nd4 48.Qh3+ Kg8 49.Qe3 Qh4+ 50.Kg2 Qg4+
51.Kf2 Qh4+ 52.Kg2 Qg4+  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "12"]
[White "Panno, Oscar"]
[Black "Savon, Vladimir A"]
[Result "0-1"]
[WhiteElo "2580"]
[BlackElo "2570"]
[ECO "A28"]

1.c4 Nf6 2.Nc3 e5 3.Nf3 Nc6 4.e4 d6 5.d4 Bg4 6.d5 Nd4 7.Be3 Nxf3+ 8.gxf3 Bd7
9.f4 Ng4 10.Bd2 exf4 11.Bxf4 g5 12.Bg3 Bg7 13.h4 h6 14.Be2 Ne5 15.hxg5 hxg5
16.Rxh8+ Bxh8 17.Qb3 b6 18.O-O-O a6 19.Rh1 Bg7 20.Nd1 Qf6 21.Ne3 a5 22.a3 a4
23.Qc3 Ra5 24.f3 Kf8 25.Kb1 Ra8 26.Nd1 Re8 27.Ka2 Ng6 28.Qc2 Nf4 29.Bf1 g4
30.fxg4 Bxg4 31.Nc3 Bf3 32.Rh2 Nh5 33.Be1 Qg6 34.Bd3 Nf4 35.Bf1 Bxe4 36.Nxe4 Qxe4  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "13"]
[White "Savon, Vladimir A"]
[Black "Hort, Vlastimil"]
[Result "0-1"]
[WhiteElo "2570"]
[BlackElo "2610"]
[ECO "B09"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 c5 6.Bb5+ Bd7 7.Bxd7+ Nfxd7 8.d5 Na6
9.O-O O-O 10.f5 Qb6 11.Kh1 Nc7 12.Ne2 c4 13.Ng3 a5 14.Rb1 c3 15.b3 a4 16.Bg5 Nf6
17.bxa4 Qa7 18.Nd4 Rab8 19.Nde2 Qxa4 20.Nxc3 Qa5 21.Bd2 Rfc8 22.fxg6 fxg6
23.Qf3 Qa6 24.e5 dxe5 25.Rbe1 Rf8 26.Qd1 Ncxd5 27.Nxd5 Nxd5 28.Qb1 Rxf1+
29.Rxf1 Rc8 30.Qb3 Qc4 31.Qxb7 e4 32.Qb3 e3 33.Ba5 e6 34.Re1 Qxc2 35.Qb7 Qc6
36.Qb3 Nf4 37.Rg1 Bd4 38.Qd1 Qd5  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "13"]
[White "Bronstein, David I"]
[Black "Panno, Oscar"]
[Result "1-0"]
[WhiteElo "2585"]
[BlackElo "2580"]
[ECO "C65"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.Qe2 Be7 5.c3 d6 6.d4 Bd7 7.d5 Nb8 8.Bd3 c6
9.c4 Na6 10.Nc3 O-O 11.h3 Nc5 12.Bc2 cxd5 13.cxd5 Qc7 14.Bd2 g6 15.b4 Na6
16.a3 Nh5 17.g3 Rac8 18.Bb3 Kh8 19.O-O-O b5 20.Kb2 Qb7 21.Bh6 Rfd8 22.Qd2 Nb8
23.g4 Nf6 24.Bg5 Be8 25.Qe2 Nbd7 26.Qxb5 Qc7 27.Rc1 Nb6 28.Qa6 Qd7 29.Rhe1 Kg7
30.Be3 Rb8 31.Nd2 h5 32.g5 Nh7 33.h4 f6 34.gxf6+ Bxf6 35.Rh1 Qe7 36.Nf3 Rd7
37.Nb5 Rdb7 38.Nc3 Bd7 39.Ka2 Bg4 40.Nh2 Bd7 41.Nf3 Bg4 42.Nd2 Bxh4 43.Bc2 Bg5
44.Nb3 Bxe3 45.fxe3 Rc7 46.Bd3 Bc8 47.Qa5 a6 48.Bxa6 Ra7 49.b5 Nc4 50.Qb4 Nxa3
51.Kxa3 Bxa6 52.b6 Raa8 53.Na4 Nf6 54.Na5 Rc8 55.Rc6 Kh6 56.Rxd6 Rc2 57.Rc6 Ra2+
58.Kb3 Qxb4+ 59.Kxb4 Nxe4 60.Rg1 Ng5 61.Rc7 Rd8 62.Rd1 Be2 63.Rb1 Rxd5 64.Nc5 Ne6
65.b7 Rxa5 66.Kxa5 Nxc7 67.b8=Q Rxc5+ 68.Kb6 Ne6 69.Qe8 Bg4 70.Rg1 Rd5 71.e4 Rd6+
72.Ka5 Ra6+ 73.Kb4 Rb6+ 74.Kc3 Kg5 75.Qe7+ Kf4 76.Qf6+ Kxe4 77.Re1+ Kd5 78.Rxe5+ Kd6
79.Ra5 Rc6+ 80.Kd2 Bf5 81.Qe5+ Kd7 82.Rd5+ Ke7 83.Ra5 Rd6+ 84.Ke1 Rd8 85.Ke2 Bd3+
86.Ke3 Bf5 87.Ra3 Rd7 88.Qh8 Kf7 89.Ra8 Rc7 90.Kf2 Ke7 91.Qe5 Kf7 92.Rh8 Rc2+
93.Ke3 Nf8 94.Qd5+ Ne6 95.Qe5 Nf8 96.Kf4 Rc8 97.Kg3 Rd8 98.Qc7+ Rd7 99.Qc4+ Be6
100.Qb4 Re7 101.Kh4 Re8 102.Kg5 Bf5 103.Kh6 Re7 104.Qb3+ Re6 105.Qb2  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "13"]
[White "Geller, Efim P"]
[Black "Hug, Werner"]
[Result "1-0"]
[WhiteElo "2585"]
[BlackElo "2445"]
[ECO "E92"]

1.d4 Nf6 2.c4 c5 3.d5 d6 4.Nc3 g6 5.e4 Bg7 6.Nf3 O-O 7.Be2 e5 8.Bg5 h6 9.Bh4 Qc7
10.Nd2 Nh7 11.O-O Bf6 12.Bg3 Qe7 13.Qc2 Nd7 14.Rae1 h5 15.h3 Bg5 16.Nf3 Bh6
17.Bd3 Ng5 18.Nd2 h4 19.Bh2 Nxh3+ 20.gxh3 Qg5+ 21.Kh1 Qxd2 22.Nb5 Qxc2 23.Bxc2 Nb6
24.Nxd6 Bxh3 25.Rg1 Bg7 26.b3 Rab8 27.Nf5 Bxf5 28.exf5 Rbe8 29.fxg6 f5 30.Rg5 e4
31.Bd6 Nd7 32.Bxf8 Rxf8 33.f4 Bd4 34.Re2 Rf6 35.Rh2 Nf8 36.Rxh4 Nxg6 37.Bxe4 fxe4
38.f5 Rxf5 39.Rxg6+ Kf7 40.Re6 Rf1+ 41.Kg2 Rf2+ 42.Kg3 e3 43.Rf4+  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "13"]
[White "Gheorghiu, Florin"]
[Black "Mecking, Henrique"]
[Result "0-1"]
[WhiteElo "2530"]
[BlackElo "2575"]
[ECO "B53"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 Nc6 5.Bb5 Bd7 6.Bxc6 Bxc6 7.Nc3 Nf6 8.Bg5 e6
9.O-O-O Be7 10.Rhe1 h6 11.Bh4 O-O 12.g4 Nxg4 13.Bxe7 Qxe7 14.Rg1 f5 15.Qxd6 Qxd6
16.Rxd6 Nxf2 17.Ne5 Nxe4 18.Nxe4 Bxe4 19.Rd7 g5 20.h4 Rad8 21.hxg5 h5 22.Rgd1 Rxd7
23.Nxd7 Rc8 24.c3 h4 25.Nf6+ Kf7 26.Nxe4 fxe4 27.Rh1 Rh8 28.Kd2 h3 29.Ke3 Rh4
30.c4 Kg6 31.c5 Kxg5 32.b4 Kf5 33.Kd4 e5+ 34.Ke3 h2 35.Kf2 Ke6 36.Kg3 Rh8
37.Rxh2 Rxh2 38.Kxh2 Kd5 39.Kg3 Kc4 40.a3 a6  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "13"]
[White "Keres, Paul"]
[Black "Ljubojevic, Ljubomir"]
[Result "1/2-1/2"]
[WhiteElo "2605"]
[BlackElo "2570"]
[ECO "B51"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7 4.d4 Nf6 5.Nc3 a6 6.Bxd7+ Nxd7 7.O-O e6 8.dxc5 Nxc5
9.Bg5 Qb6 10.Rb1 Bd7 11.b4 Na4 12.Nxa4 Bxa4 13.Qd3 h6 14.Be3 Qc7 15.c4 Be7
16.Rfc1 O-O 17.Nd4 Rfc8 18.h3 Be8 19.Ne2 Qd7 20.Rd1 Qa4 21.Rd2 Bf8 22.a3 a5
23.Nd4 Rc7 24.Rc2 Rac8 25.Rcc1 g6 26.Bd2 Kh7 27.h4 e5 28.Nb3 axb4 29.axb4 Qd7
30.Be3 Qe6 31.c5 dxc5 32.Bxc5 Bxc5 33.Rxc5 b6 34.Rxc7 Rxc7 35.Nd2 Qa2 36.Nf3 Bb5
37.Qd1 Rd7 38.Qe1 f6 39.Rd1 Rd3 40.Rxd3 Bxd3 41.Qe3 Qa6  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "13"]
[White "Polugaevsky, Lev"]
[Black "Ivkov, Borislav"]
[Result "1/2-1/2"]
[WhiteElo "2640"]
[BlackElo "2535"]
[ECO "D38"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 d5 4.d4 Bb4 5.Qa4+ Nc6 6.cxd5 exd5 7.Bg5 h6 8.Bxf6 Qxf6
9.e3 O-O 10.Be2 Rd8 11.O-O a6 12.Rac1 Be6 13.Ne5 Bxc3 14.Nxc6 Bd7 15.Rxc3 Bxc6
16.Qa5 Qd6 17.Rfc1 Rd7 18.Qa3 Qf6 19.b4 Qd8 20.Qb3 Bb5 21.Bf1 Bxf1 22.Kxf1 c6
23.a4 Rd6 24.Rc5 Qh4 25.Kg1 Rg6 26.g3 Qe4 27.Qc2 Qf3 28.Qd1 Qe4 29.b5 axb5
30.axb5 Ra2 31.bxc6 Rf6 32.R1c2 Rxc2 33.Qxc2 Qxc2 34.Rxc2 bxc6 35.Ra2 g5
36.g4 Kg7 37.Ra7 Kg6 38.Ra8 Re6 39.Kg2 Kg7 40.Kg3 Kg6 41.h4 Kg7 42.h5 Kf6
43.Rg8 Re7 44.Kg2 Re6 45.Kg3 Re7 46.Kf3 Re4 47.Rc8 Re6 48.Ke2 Kg7 49.f3 Kh7
50.Ra8 Kg7 51.Ra1 Kg8 52.Kd3 Rf6 53.Rf1 Kg7 54.Rf2 Kf8 55.f4 gxf4 56.exf4 Kg7
57.f5 Rd6 58.Ke3 Kf6 59.Kf4 Rd8 60.Rc2 Rc8 61.g5+ hxg5+ 62.Kg4 Kg7 63.Kxg5 f6+
64.Kh4 Kh7 65.Re2 c5  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "13"]
[White "Portisch, Lajos"]
[Black "Biyiasas, Peter"]
[Result "1-0"]
[WhiteElo "2645"]
[BlackElo "2395"]
[ECO "A42"]

1.d4 g6 2.c4 d6 3.Nc3 Bg7 4.e4 e5 5.d5 Qe7 6.Be2 Bh6 7.Bxh6 Nxh6 8.Qd2 Ng4
9.h3 Nf6 10.Nf3 O-O 11.Nh2 Nbd7 12.Qe3 a5 13.g4 Nc5 14.O-O-O Ne8 15.Rdf1 Ng7
16.Bd1 Bd7 17.Bc2 Rae8 18.f4 f5 19.fxe5 Qxe5 20.Nf3 f4 21.Nxe5 fxe3 22.Nxd7 Nxd7
23.Ba4 Re7 24.Bxd7 Rxd7 25.Rxf8+ Kxf8 26.Rf1+ Rf7 27.Rxf7+ Kxf7 28.Kd1 Kf6
29.Ke2 Kg5 30.Kxe3 Kh4 31.Nb5 Kxh3 32.Nxc7 Kxg4 33.c5 Kg5 34.cxd6 Kf6 35.e5+ Kf7
36.Kf4 Nf5 37.e6+ Kf8 38.e7+  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "13"]
[White "Reshevsky, Samuel Herman"]
[Black "Tan Lian Ann"]
[Result "1-0"]
[WhiteElo "2565"]
[BlackElo "2365"]
[ECO "E59"]

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 Bxc3
9.bxc3 dxc4 10.Bxc4 Qc7 11.Bb5 b6 12.Re1 Rd8 13.e4 Bb7 14.e5 Ne8 15.Qd3 a6
16.Ba4 c4 17.Qd1 Ne7 18.Bc2 Bxf3 19.Qxf3 Ng6 20.a4 Qd7 21.Be4 Rab8 22.Ba3 Ne7
23.Qh3 f5 24.exf6 Nxf6 25.Bxe7 Qxe7 26.Bf5 Qc7 27.Rxe6 Rf8 28.Rae1 h6 29.Qf3 Kh8
30.h3 Rbe8 31.Rxe8 Nxe8 32.Bc2 Nf6 33.Qf5 b5 34.axb5 axb5 35.Re6 Ra8 36.g4 Kg8
37.Qxb5 Qf4 38.Rxf6 Ra1+ 39.Kg2 gxf6 40.Qe8+ Kg7 41.Qe7+ Kg8 42.Bh7+ Kh8
43.Bg6  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "13"]
[White "Smyslov, Vassily"]
[Black "Kagan, Shimon"]
[Result "1-0"]
[WhiteElo "2600"]
[BlackElo "2405"]
[ECO "E62"]

1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 d6 5.Nf3 O-O 6.O-O c6 7.Nc3 Qa5 8.h3 e5 9.d5 c5
10.e4 a6 11.Bd2 Qd8 12.Ne1 b5 13.cxb5 axb5 14.Nxb5 Qb6 15.a4 Ba6 16.Qb3 Bxb5
17.Nc2 Rxa4 18.Rxa4 Nbd7 19.Rb1 Bxa4 20.Qxa4 Rb8 21.Ne3 Qb3 22.Qxb3 Rxb3
23.Nc4 Bf8 24.Bc3 Ne8 25.Ra1 Rb7 26.f4 f6 27.h4 Nc7 28.Bh3 Nb5 29.Be6+ Kg7
30.Bd2 Nd4 31.Ra3 Be7 32.f5 gxf5 33.exf5 e4 34.Kf1 Nf3 35.Bc3 Nde5 36.Na5 Rc7
37.Nc6 h5 38.Ra6 Bf8 39.Nxe5 Nxe5 40.Ke2 Ng4 41.Ra4 Rb7 42.Rxe4 Ra7 43.Kd2 Kh7
44.Kc2 Bh6 45.b3 Ne3+ 46.Kb1 Ra3 47.Bxf6 Rxb3+ 48.Ka2 Rb7 49.Bg5 Nd1 50.Rc4 Nb2
51.Rc3 Nd1 52.Rd3 Nf2 53.Rf3 Ra7+ 54.Kb2 Rb7+ 55.Kc2 Ne4 56.f6 Bxg5 57.hxg5 Nxg5
58.f7 Nxf7 59.Rxf7+ Rxf7 60.Bxf7 Kh6 61.Kd3 Kg5 62.Kc4 Kg4 63.Kb5 Kxg3 64.Bxh5 Kf4
65.Kc6  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "14"]
[White "Ivkov, Borislav"]
[Black "Keres, Paul"]
[Result "1/2-1/2"]
[WhiteElo "2535"]
[BlackElo "2605"]
[ECO "E18"]

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 Qe8 12.Qxe8 Rxe8 13.cxd5 exd5  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "14"]
[White "Biyiasas, Peter"]
[Black "Mecking, Henrique"]
[Result "1/2-1/2"]
[WhiteElo "2395"]
[BlackElo "2575"]
[ECO "B50"]

1.e4 c5 2.Nf3 d6 3.Nc3 a6 4.g3 b5 5.Bg2 Bb7 6.d3 g6 7.O-O Bg7 8.a4 b4 9.Nb1 Nf6
10.Nbd2 O-O 11.Nc4 Nbd7 12.Re1 Qc7 13.Bf4 Nh5 14.Bg5 Rae8 15.Qd2 e6 16.Bh6 d5
17.Bxg7 Kxg7 18.exd5 exd5 19.Ne3 Nhf6 20.Nh4 d4 21.Nc4 Bxg2 22.Nxg2 Nb6 23.Nxb6 Qxb6
24.b3 Qc6 25.Rxe8 Rxe8 26.Re1 Ng4 27.Qf4  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "14"]
[White "Hort, Vlastimil"]
[Black "Bronstein, David I"]
[Result "1-0"]
[WhiteElo "2610"]
[BlackElo "2585"]
[ECO "D16"]

1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.Nf3 dxc4 5.a4 Bg4 6.e3 e6 7.Bxc4 Nbd7 8.h3 Bh5
9.Qe2 Bb4 10.O-O Qe7 11.e4 e5 12.d5 a5 13.Rd1 O-O 14.g4 Bg6 15.Nh4 cxd5 16.Nxg6 fxg6
17.Bxd5+ Kh8 18.Bxb7 Rab8 19.Bd5 Nc5 20.Bg5 h6 21.Bh4 Ne6 22.Bxe6 Qxe6 23.Nd5 Bc5
24.Bxf6 gxf6 25.Qd2 Kg7 26.Qxa5 Bd4 27.Qc7+ Kh8 28.Rac1 Rfc8 29.Qe7 Qxe7
30.Rxc8+ Rxc8 31.Nxe7 Rc2 32.b4 Kg7 33.b5 Ra2 34.Nd5 Rxa4 35.b6 Ra2 36.Rb1 Rxf2
37.Kh1 Rf3 38.b7 Ba7 39.Kg2 Rf2+ 40.Kg3 Re2 41.b8=Q Bxb8 42.Rb7+ Kf8 43.Rxb8+ Kf7  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "14"]
[White "Hug, Werner"]
[Black "Gheorghiu, Florin"]
[Result "1/2-1/2"]
[WhiteElo "2445"]
[BlackElo "2530"]
[ECO "B40"]

1.e4 c5 2.Nf3 e6 3.Nc3 Nc6 4.g3 d5 5.exd5 exd5 6.Bg2 d4 7.Ne2 Nf6 8.d3 Be7
9.O-O O-O 10.Re1 Re8 11.Nf4 Bd6 12.Bd2 h6 13.Rxe8+ Qxe8 14.Ne2 Be6 15.Bf4 Bf8
16.Ne5 Nxe5 17.Bxe5 Bg4 18.Bxf6 Bxe2 19.Qd2 Bg4 20.Re1 Qd7 21.Bh4 Be6 22.f4 f6
23.Qe2 Bg4 24.Bd5+ Qxd5 25.Qxg4 g5 26.Bxg5 hxg5 27.h4 Bg7 28.Re7 Rf8 29.f5 Rf7
30.Re8+ Bf8 31.hxg5 fxg5 32.Qxg5+ Rg7 33.Qf4 Qxa2 34.f6 Rg6 35.Rxf8+ Kxf8
36.Qd6+ Kg8 37.Qd8+ Kh7 38.Qe7+ Kg8 39.Qe8+ Kh7 40.Qe7+ Kh8 41.Qe8+ Kh7  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "14"]
[White "Tan Lian Ann"]
[Black "Savon, Vladimir A"]
[Result "0-1"]
[WhiteElo "2365"]
[BlackElo "2570"]
[ECO "B53"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 a6 5.Bg5 Nc6 6.Qd2 h6 7.Bh4 g5 8.Bg3 Bg7
9.c3 Nf6 10.Bd3 Nh5 11.Na3 Bd7 12.Nc4 Nxg3 13.hxg3 b5 14.Ne3 Ne5 15.Nd4 e6
16.f4 Ng6 17.f5 Ne5 18.Be2 O-O 19.O-O-O Rc8 20.Kb1 Bc6 21.Bd3 Re8 22.Bc2 Bb7
23.Nf3 b4 24.cxb4 Qf6 25.Nxe5 Qxe5 26.Bd3 Bxe4 27.Bxe4 Qxe4+ 28.Qd3 Qxb4
29.Qb3 Rb8 30.Qxb4 Rxb4 31.b3 d5 32.Rhe1 Re4 33.fxe6 R8xe6 34.Nc2 Re2 35.Rxe2 Rxe2
36.Nb4 Rxg2 37.Nxa6 Rb2+ 38.Kc1 Rxa2 39.Nb4 Rg2 40.Rd3 Be5 41.Nc6 Bxg3 42.Ne7+ Kh7
43.Nxd5 h5 44.Rf3 Kg7 45.Ne3 Rg1+ 46.Kc2 Bf4 47.Nd5 Rg2+ 48.Kb1 Bd2 49.b4 h4
50.b5  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "14"]
[White "Kagan, Shimon"]
[Black "Geller, Efim P"]
[Result "0-1"]
[WhiteElo "2405"]
[BlackElo "2585"]
[ECO "B56"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Nde2 e6 7.g3 Be7 8.Bg2 O-O
9.O-O Bd7 10.h3 Qb8 11.a4 Rd8 12.Be3 Be8 13.Qc1 Qc7 14.Rd1 a6 15.Rd2 Rac8
16.Qb1 Qa5 17.Qa2 Ne5 18.Rd4 b5 19.axb5 Qxa2 20.Rxa2 axb5 21.b3 Nc6 22.Rd2 Nb4
23.Ra5 Nxc2 24.Rxc2 b4 25.Ra7 Bf8 26.e5 dxe5 27.Bb7 bxc3 28.Bxc8 Rxc8 29.Rxc3 Rb8
30.Bc5 Ne4 31.b4 Nxc3 32.Nxc3 Rc8 33.Ne4 f5 34.Ng5 Bxc5 35.bxc5 Rxc5 36.Ra8 Rc1+
37.Kh2 Kf8 38.Nxe6+ Ke7 39.Nxg7 Bc6 40.Nxf5+ Ke6 41.Ng7+ Kf6 42.Ne8+ Ke7
43.Ra7+ Kxe8 44.g4 Bd7 45.Ra5 Re1 46.Ra6 Kf7 47.Rh6 Kg7 48.Rd6 Be8 49.h4 Bf7
50.h5 Re4 51.Kg3 Rd4 52.Ra6 Rd3+ 53.Kh4 Rf3 54.h6+ Kf8 55.Ra5 e4 56.Ra4 Bg6
57.Ra2 Ke7 58.Kg5 Ke6 59.Ra6+ Ke5 60.Ra5+ Kd4 61.Ra4+ Kc3 62.Ra2 Kb3 63.Re2 Rh3
64.Rd2 Rd3 65.Re2 Kc3 66.Kf4 Rd2 67.Re3+ Kd4 68.f3 Rf2 69.Ra3 Rxf3+  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "14"]
[White "Ljubojevic, Ljubomir"]
[Black "Smyslov, Vassily"]
[Result "0-1"]
[WhiteElo "2570"]
[BlackElo "2600"]
[ECO "D26"]

1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 e6 6.Nf3 Be7 7.Bf4 dxc4 8.Bxc4 O-O
9.O-O Nc6 10.Rc1 a6 11.a3 b5 12.Ba2 Bb7 13.d5 exd5 14.Nxd5 Nxd5 15.Bxd5 Rc8
16.Re1 Bf6 17.Bd6 Re8 18.Bxf7+ Kxf7 19.Qd5+ Kg6 20.Rxe8 Qxe8 21.Qd3+ Kf7
22.Re1 Ne7 23.h4 Qd8 24.Ng5+ Bxg5 25.hxg5 Ng6 26.f4 Qb6+ 27.Kh2 Kg8 28.Qb3+ Kh8
29.Re6 Qf2 30.Qg3 Qxg3+ 31.Kxg3 Rd8 32.Bc5 Bc8 33.Rc6 Bf5 34.Rxa6 Kg8 35.Bd6 Kf7
36.Rb6 Bd3 37.Rb7+ Ke6 38.Bb4 Rd7 39.Rb6+ Kf5 40.Bd6 Ne7 41.Be5 Ke4 42.b3 Ke3
43.a4 Nf5+ 44.Kh2 Be4 45.Rxb5 Rd2 46.Bb8 Rxg2+ 47.Kh3 Rg3+ 48.Kh2 Rg4 49.Ba7+ Ke2  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "14"]
[White "Panno, Oscar"]
[Black "Polugaevsky, Lev"]
[Result "1-0"]
[WhiteElo "2580"]
[BlackElo "2640"]
[ECO "A09"]

1.Nf3 d5 2.c4 d4 3.e3 Nc6 4.exd4 Nxd4 5.Nxd4 Qxd4 6.d3 e5 7.Nc3 Nf6 8.Be2 c6
9.Be3 Qd8 10.d4 exd4 11.Qxd4 Qxd4 12.Bxd4 Be7 13.O-O-O O-O 14.h3 Be6 15.Rhe1 a6
16.f4 Bb4 17.g4 b5 18.f5 Bxc4 19.Bxc4 bxc4 20.Bxf6 gxf6 21.Re4 Bxc3 22.bxc3 Rfd8
23.Rxc4 Rxd1+ 24.Kxd1 Rc8 25.Ra4 Ra8 26.Rd4 Rb8 27.Kc2 Rb5 28.Rc4 Ra5 29.a4 h5
30.Kb3 h4 31.Rxc6 Kg7 32.Rd6 Re5 33.Rxa6 Re3 34.Rd6 Rxh3 35.Rd1 Kh6 36.a5 Re3
37.a6 Re8 38.Ra1 h3 39.Kb4 Kg5 40.a7 h2 41.Kb5 Kxg4 42.c4 Kxf5 43.Rh1  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "14"]
[White "Portisch, Lajos"]
[Black "Reshevsky, Samuel Herman"]
[Result "1-0"]
[WhiteElo "2645"]
[BlackElo "2565"]
[ECO "B36"]

1.c4 c5 2.Nf3 g6 3.e4 Nc6 4.d4 cxd4 5.Nxd4 Nf6 6.Nc3 Nxd4 7.Qxd4 d6 8.Bg5 Bg7
9.Qd2 O-O 10.Bd3 a5 11.O-O a4 12.Rac1 Be6 13.Qc2 Nd7 14.f4 Rc8 15.b3 axb3
16.axb3 Nf6 17.Kh1 Qa5 18.f5 Bd7 19.Nd5 Qd8 20.Qf2 Bc6 21.Qh4 Bxd5 22.exd5 Re8
23.Rf3 Nd7 24.Rcf1 Bf6 25.Rh3 Nf8 26.fxg6 fxg6 27.Bxg6 hxg6 28.Rxf6  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "15"]
[White "Keres, Paul"]
[Black "Panno, Oscar"]
[Result "1/2-1/2"]
[WhiteElo "2605"]
[BlackElo "2580"]
[ECO "B52"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.c4 e5 6.Nc3 Nc6 7.d3 g6 8.Nd5 Nce7
9.O-O Bg7 10.Rb1 Nxd5 11.cxd5 Ne7 12.b4 b6 13.bxc5 bxc5 14.Qb3 O-O 15.Qb7 Rad8
16.Bd2 Nc8 17.Ba5 Nb6 18.Qxd7 Rxd7 19.Bxb6 axb6 20.Rxb6 Ra8 21.Ra1 Ra3 22.Rb3 Rda7
23.Rxa3 Rxa3 24.Kf1 f5 25.Ne1 c4 26.dxc4 fxe4 27.Nc2 Ra4 28.Ne3 Bh6 29.Ke2 Kf7
30.Kd2 Ra3 31.Kc2 Bxe3 32.fxe3 Ke7 33.Kb2 Rxe3 34.a4 Kd8 35.a5 Kc7 36.Rf1 Rd3
37.Kc2 Rd4 38.Kc3 Kb7 39.Re1 Ka6 40.Kb4 Rd2 41.Rxe4 Rb2+  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "15"]
[White "Bronstein, David I"]
[Black "Tan Lian Ann"]
[Result "1-0"]
[WhiteElo "2585"]
[BlackElo "2365"]
[ECO "D64"]

1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.Bg5 Be7 5.e3 O-O 6.Rc1 c6 7.Nf3 Nbd7 8.Qc2 Re8
9.a3 dxc4 10.Bxc4 Nd5 11.Bxe7 Qxe7 12.Ne2 e5 13.Bxd5 cxd5 14.Nc3 Nb6 15.Nxe5 f6
16.Nd3 Bf5 17.O-O Rac8 18.Qe2 Bxd3 19.Qxd3 Qd7 20.Rc2 Rc6 21.Rfc1 Rec8 22.Nb1 Nc4
23.b3 Nd6 24.a4 b5 25.axb5 Rxc2 26.Rxc2 Rxc2 27.Qxc2 Qxb5 28.f3 g6 29.Nc3 Qa5
30.Kf2 Kg7 31.Ne2 Nf5 32.g4 Nh4 33.Qc5 Qd2 34.Qe7+ Kg8 35.Qxf6 Ng2 36.Qd8+ Kg7
37.Qe7+ Kg8 38.Kxg2 Qxe2+ 39.Kg3 Qb5 40.b4 a6 41.h4 Qb8+ 42.Kh3 Qb5 43.Kg3 Qb8+
44.Qe5 Qxb4 45.Qxd5+ Kg7 46.Qd7+ Kg8 47.Qc8+ Kg7 48.Qxa6 Qe1+ 49.Kf4 Qxh4
50.Qa7+ Kg8 51.Qb8+ Kg7 52.Qe5+ Kg8 53.Ke4 h5 54.d5 hxg4 55.Qe6+ Kg7 56.fxg4 Qh1+
57.Kd3 Qd1+ 58.Kc3 Qc1+ 59.Kb4 Qb2+ 60.Ka5 Qc3+ 61.Kb6 Qb4+ 62.Ka7 Qa5+ 63.Kb7 Qb5+
64.Kc8 Qc4+ 65.Kd8 Qa2 66.g5 Qa5+ 67.Ke8 Qa8+ 68.Ke7 Qa7+ 69.Qd7 Qc5+ 70.Ke6+  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "15"]
[White "Geller, Efim P"]
[Black "Ljubojevic, Ljubomir"]
[Result "1-0"]
[WhiteElo "2585"]
[BlackElo "2570"]
[ECO "E92"]

1.d4 Nf6 2.c4 c5 3.d5 g6 4.Nc3 Bg7 5.e4 d6 6.Nf3 O-O 7.Be2 e5 8.Bg5 h6 9.Bh4 Na6
10.Nd2 Qe8 11.O-O Nh7 12.Nb5 Qd7 13.Bg3 Nc7 14.f4 exf4 15.Bxf4 Ne8 16.Nf3 Qe7
17.Qd2 g5 18.Bg3 Nhf6 19.Bd3 Nh5 20.Bf2 Nf4 21.Rae1 a6 22.Nc3 Ng6 23.h3 Kh8
24.Bg3 Qc7 25.h4 g4 26.h5 gxf3 27.hxg6 fxg6 28.e5 Bf5 29.Rxf3 dxe5 30.Bxf5 Rxf5
31.Rxf5 gxf5 32.Bxe5 Qb6 33.d6 Kh7 34.Nd5 Qd8 35.d7 Qh4 36.Qf2 Qxf2+ 37.Kxf2 Bxe5
38.Rxe5 Nd6 39.Re8 Rxe8 40.Nf6+  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "15"]
[White "Gheorghiu, Florin"]
[Black "Kagan, Shimon"]
[Result "1-0"]
[WhiteElo "2530"]
[BlackElo "2405"]
[ECO "E80"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 c6 6.Be3 Nbd7 7.Qd2 a6 8.O-O-O Qa5
9.Kb1 b5 10.Bh6 Bxh6 11.Qxh6 Rb8 12.Qd2 h6 13.g4 Kf8 14.h4 bxc4 15.Bxc4 Nb6
16.Bb3 Be6 17.d5 cxd5 18.exd5 Bd7 19.Nge2 h5 20.g5 Bf5+ 21.Ka1 Nfd7 22.Nd4 Nc5
23.Rhe1 Nbd7 24.Bc2 Bxc2 25.Qxc2 Qb6 26.f4 f5 27.gxf6 Nxf6 28.b4 Qxb4 29.Nc6 Nb3+
30.axb3 Qxb3 31.Qxb3 Rxb3 32.Ne4 Nxe4 33.Rxe4 Rh7 34.Rde1 Rb7 35.Rb1 Rxb1+
36.Kxb1 Rf7 37.Kc2 Ke8 38.Kd3 a5 39.Nxa5 Rf5 40.Kd4 Kd7 41.Nc6 Rf7 42.Ke3 Rg7
43.Ra4 Ke8 44.Ra8+ Kf7 45.Nd8+ Kf6 46.Ne6 Rh7 47.Ng5  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "15"]
[White "Mecking, Henrique"]
[Black "Hug, Werner"]
[Result "1-0"]
[WhiteElo "2575"]
[BlackElo "2445"]
[ECO "C17"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Ba5 6.b4 cxd4 7.Nb5 Bc7 8.f4 Ne7 9.Nf3 Bd7
10.Nbxd4 Nbc6 11.Bb2 Nxd4 12.Nxd4 Bb6 13.Bd3 Nc6 14.Nb5 O-O 15.Qh5 h6 16.g4 Be8
17.Qh3 f6 18.exf6 Rxf6 19.Rf1 d4 20.O-O-O a6 21.g5 axb5 22.gxf6 Qxf6 23.Rde1 Nd8
24.Kb1 Rc8 25.Re5 Bf7 26.Rxb5 Rc6 27.Qg2 Rd6 28.Qe4 Bc7 29.f5 Rd7 30.fxe6 Qxe6
31.Qh7+ Kf8 32.Qh8+ Ke7 33.Qxg7 Nc6 34.Rbf5 Ne5 35.Rxe5  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "15"]
[White "Polugaevsky, Lev"]
[Black "Hort, Vlastimil"]
[Result "1/2-1/2"]
[WhiteElo "2640"]
[BlackElo "2610"]
[ECO "A11"]

1.c4 c6 2.Nf3 d5 3.e3 Nf6 4.Nc3 Bg4 5.cxd5 Bxf3 6.Qxf3 cxd5 7.d4 Nc6 8.Bd3 e6
9.O-O Be7 10.Rd1 O-O 11.Bd2 Rc8 12.Be1 Bd6 13.Rac1 Qe7 14.g3 a6 15.Bf1 Rc7
16.Qe2 Rfc8 17.Rb1 Nb8 18.f3 Nbd7 19.Bh3 b5 20.e4 dxe4 21.fxe4 e5 22.dxe5 Bxe5
23.Nd5 Nxd5 24.Rxd5 Re8  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "15"]
[White "Reshevsky, Samuel Herman"]
[Black "Biyiasas, Peter"]
[Result "1-0"]
[WhiteElo "2565"]
[BlackElo "2395"]
[ECO "B08"]

1.d4 g6 2.e4 d6 3.Nf3 Nf6 4.Nc3 Bg7 5.Be2 O-O 6.O-O Bg4 7.Be3 Nc6 8.Qd2 e5
9.dxe5 dxe5 10.Rad1 Qxd2 11.Rxd2 Rfd8 12.Rfd1 Rxd2 13.Rxd2 Ne8 14.h3 Bxf3
15.Bxf3 Nd4 16.Bd1 Nd6 17.Rd3 c5 18.f3 f5 19.g4 b5 20.Nd5 fxe4 21.fxe4 Nxe4
22.Ra3 Rd8 23.Ne7+ Kf8 24.Rxa7 Bf6 25.Bh6+ Ke8 26.c3 Bxe7 27.cxd4 cxd4 28.Kg2 Nd6
29.a4 b4 30.a5 Rb8 31.Ba4+ Kf7 32.Bb3+ Ke8 33.a6 Nb5 34.Ba4 Kd8 35.Rb7 Rxb7
36.axb7 Kc7 37.Bxb5 Kxb7 38.Kf3 Kb6 39.Bc4 Kc5 40.b3  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "15"]
[White "Savon, Vladimir A"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[WhiteElo "2570"]
[BlackElo "2645"]
[ECO "C05"]

1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.f4 c5 6.c3 Nc6 7.Ndf3 Qa5 8.Kf2 b5
9.Bd3 b4 10.Ne2 Nb6 11.Kg3 bxc3 12.bxc3 Ba6 13.h4 Be7 14.h5 Bxd3 15.Qxd3 Qa4
16.f5 Qc4 17.Qxc4 Nxc4 18.h6 g6 19.fxe6 fxe6 20.Rb1 O-O 21.Nf4 Nd8 22.Nh3 Rc8
23.Re1 cxd4 24.cxd4 Na3 25.Rb3 Nc2 26.Rd1 Rc4 27.Bg5 Nc6 28.Rb7 Rf7 29.Rdb1 Rb4
30.Bxe7 Rxb7 31.Rxb7 Nxe7 32.Rb8+ Rf8 33.Rxf8+ Kxf8 34.Nhg5 Nf5+ 35.Kf4 Ke7
36.Nxh7 Nxh6 37.g4 Nf7 38.Nhg5 Nd8 39.Nh4 Nxd4 40.Nxg6+ Ke8  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "15"]
[White "Smyslov, Vassily"]
[Black "Ivkov, Borislav"]
[Result "1/2-1/2"]
[WhiteElo "2600"]
[BlackElo "2535"]
[ECO "D94"]

1.c4 g6 2.d4 Nf6 3.Nc3 d5 4.Nf3 Bg7 5.e3 O-O 6.Bd2 c5 7.dxc5 Na6 8.cxd5 Nxc5
9.Bc4 Bf5 10.O-O Rc8 11.Qe2 Nfe4 12.Nd4 Nxd2 13.Qxd2 Ne4 14.Nxe4 Bxe4 15.Qb4 Bxd4
16.exd4 Bxd5 17.Bxd5 Qxd5 18.Qxe7  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "16"]
[White "Hort, Vlastimil"]
[Black "Keres, Paul"]
[Result "1/2-1/2"]
[WhiteElo "2610"]
[BlackElo "2605"]
[ECO "A11"]

1.c4 Nf6 2.Nf3 c6 3.Nc3 d5 4.e3 Bg4 5.Qb3 Qb6 6.Ne5 Be6 7.d4 dxc4 8.Bxc4 Bxc4
9.Qxc4 e6 10.e4 Qa6 11.Qe2 Qxe2+ 12.Kxe2 Nbd7 13.Nxd7 Nxd7 14.Be3 Bd6 15.Rhd1  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "16"]
[White "Biyiasas, Peter"]
[Black "Hug, Werner"]
[Result "1-0"]
[WhiteElo "2395"]
[BlackElo "2445"]
[ECO "B30"]

1.Nf3 c5 2.e4 e6 3.Nc3 Nc6 4.Bb5 Nge7 5.O-O a6 6.Bxc6 Nxc6 7.d4 cxd4 8.Nxd4 Be7
9.Nxc6 dxc6 10.e5 O-O 11.Qe2 Qc7 12.Bf4 c5 13.Ne4 Qc6 14.Rad1 b6 15.Bg5 Bxg5
16.Rd6 Qc7 17.Nxg5 Bb7 18.Qd3 g6 19.Rd1 Bd5 20.c4 Bc6 21.Qh3 h5 22.Nxe6  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "16"]
[White "Tan Lian Ann"]
[Black "Polugaevsky, Lev"]
[Result "0-1"]
[WhiteElo "2365"]
[BlackElo "2640"]
[ECO "B40"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Bd3 Nc6 6.Nxc6 bxc6 7.O-O d6 8.c4 Be7
9.b3 O-O 10.Bb2 Nd7 11.Nc3 Nc5 12.f4 a5 13.Bc2 Qb6 14.Kh1 Rd8 15.Qf3 a4 16.Ne2 d5
17.Qg3 f6 18.exd5 cxd5 19.Qh4 Ne4 20.Bd4 Qc6 21.Nc3 Bb4 22.Nxe4 dxe4 23.Bxf6 gxf6
24.Qxf6 Rd7 25.f5 Bb7 26.Rf4 exf5 27.Qe5 Rg7 28.Rxf5 Re8 29.Qf4 e3 30.Rg5 Qxg2+
31.Rxg2 Bxg2+ 32.Kg1 Bb7+ 33.Kf1 e2+ 34.Kf2 Rg2+  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "16"]
[White "Ivkov, Borislav"]
[Black "Geller, Efim P"]
[Result "1/2-1/2"]
[WhiteElo "2535"]
[BlackElo "2585"]
[ECO "D55"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 O-O 6.e3 h6 7.Bxf6 Bxf6 8.Rc1 c6
9.Bd3 Nd7 10.O-O dxc4 11.Bxc4 e5 12.Ne4 exd4 13.Nxf6+ Nxf6  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "16"]
[White "Kagan, Shimon"]
[Black "Mecking, Henrique"]
[Result "0-1"]
[WhiteElo "2405"]
[BlackElo "2575"]
[ECO "B80"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.g3 e6 7.Bg2 Bd7 8.O-O Be7
9.Nde2 a6 10.a4 O-O 11.h3 Qc7 12.Kh2 Rfd8 13.Be3 Rac8 14.Qd2 Be8 15.f4 b6
16.f5 Ne5 17.b3 d5 18.exd5 exd5 19.Bd4 Bc5 20.Rac1 Bc6 21.Qf4 Bd6 22.Qh4 b5
23.axb5 axb5 24.Nf4 Qb7 25.Rce1 Re8 26.Re3 b4 27.Rfe1 bxc3 28.Bxe5 Bxe5 29.Rxe5 Ne4
30.Rxe8+ Rxe8 31.Nh5 f6 32.Nf4 Re5 33.g4 Qb8 34.Kh1 Qa7 35.Kh2 Qd4 36.Ng6 Qd2
37.Ra1 d4 38.Ra7  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "16"]
[White "Ljubojevic, Ljubomir"]
[Black "Gheorghiu, Florin"]
[Result "0-1"]
[WhiteElo "2570"]
[BlackElo "2530"]
[ECO "B67"]

1.e4 c5 2.Nf3 d6 3.Nc3 a6 4.d4 cxd4 5.Nxd4 Nf6 6.Bg5 Nc6 7.Qd2 e6 8.O-O-O Bd7
9.f4 b5 10.Bxb5 axb5 11.Ndxb5 Nb4 12.Nxd6+ Bxd6 13.Qxd6 Nxa2+ 14.Nxa2 Rxa2
15.Kb1 Ra7 16.Bxf6 gxf6 17.Rd3 Qa8 18.b3 Bb5 19.Rdd1 Bc6 20.Rhe1 Bxe4 21.Qd4 Bg6
22.g4 O-O 23.h4 e5 24.fxe5 Rc8 25.Rd2 Ra2 26.e6 fxe6 27.Qxf6 Raxc2 28.Rxc2 Rxc2
29.Qxe6+ Bf7 30.Qxf7+ Kxf7 31.Kxc2 Qg2+ 32.Kd3 Qxg4 33.Re4 Qf3+ 34.Re3 Qd5+
35.Kc3 Qc5+ 36.Kd3 Qb4 37.Re4 Qxb3+ 38.Kd4 Qf3 39.Ke5 Qf6+ 40.Kd5 h6 41.Kc4 Kg6  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "16"]
[White "Panno, Oscar"]
[Black "Smyslov, Vassily"]
[Result "1/2-1/2"]
[WhiteElo "2580"]
[BlackElo "2600"]
[ECO "A31"]

1.Nf3 Nf6 2.c4 c5 3.Nc3 b6 4.d4 cxd4 5.Nxd4 Bb7 6.f3 e6 7.e4 Bc5 8.Nc2 O-O
9.Be3 d5 10.cxd5 exd5 11.Bxc5 bxc5 12.exd5 Nxd5 13.Nxd5 Bxd5 14.Be2 Nc6 15.O-O Qg5
16.Qc1 Qf6 17.Rf2 Rad8 18.Ne3  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "16"]
[White "Portisch, Lajos"]
[Black "Bronstein, David I"]
[Result "1/2-1/2"]
[WhiteElo "2645"]
[BlackElo "2585"]
[ECO "D14"]

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.Rac1 Rac8  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "16"]
[White "Reshevsky, Samuel Herman"]
[Black "Savon, Vladimir A"]
[Result "0-1"]
[WhiteElo "2565"]
[BlackElo "2570"]
[ECO "A77"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O
9.O-O Re8 10.Nd2 Nbd7 11.a4 Rb8 12.Qc2 a6 13.Nc4 Nb6 14.Na3 Bd7 15.Bg5 h6
16.Bf4 Nxa4 17.Bxd6 Nxc3 18.bxc3 Nxe4 19.Bxb8 Nxc3 20.Bf3 Qxb8 21.Rae1 Rxe1
22.Rxe1 b5 23.Qd2 Qd6 24.Re3 Na4 25.Qa5 c4 26.Nb1 Bf5 27.Nd2 c3 28.Ne4 Qa3
29.Nxc3 Bxc3 30.Qd8+ Kg7 31.g4 Qc1+ 32.Kg2 Bf6 33.Qd6 Bb1 34.Re8 Qc5 35.Qb8 Nb6
36.Rh8 Be7 37.Rg8+ Kh7 38.Qe8 h5 39.Qxf7+ Kh6 40.Qxg6+ Bxg6  0-1

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "17"]
[White "Polugaevsky, Lev"]
[Black "Portisch, Lajos"]
[Result "1-0"]
[WhiteElo "2640"]
[BlackElo "2645"]
[ECO "A09"]

1.Nf3 d5 2.c4 d4 3.g3 c5 4.e3 Nc6 5.exd4 Nxd4 6.Nxd4 Qxd4 7.d3 Bg4 8.f3 Bf5
9.g4 Bg6 10.Qa4+ Qd7 11.Qxd7+ Kxd7 12.Nc3 e5 13.f4 exf4 14.Bxf4 Bd6 15.Bxd6 Kxd6
16.O-O-O Nf6 17.h3 Rad8 18.Nb5+ Kd7 19.Nxa7 Ra8 20.Nb5 Rxa2 21.Kc2 Ra4 22.Kc3 Re8
23.Bg2 Re2 24.Bxb7 Ra2 25.Rb1 Re3 26.Kb3 Ra5 27.Rbd1 h5 28.g5 Nh7 29.h4 Nf8
30.Rhe1 Rh3 31.Re5 Ne6 32.Be4 Bxe4 33.Rxe4 Ra8 34.Rf1 Rf8 35.Kc3 f5 36.Re5 f4
37.Ra1 Re3 38.Ra7+ Kc8 39.Rxe6  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "17"]
[White "Bronstein, David I"]
[Black "Reshevsky, Samuel Herman"]
[Result "1-0"]
[WhiteElo "2585"]
[BlackElo "2565"]
[ECO "C50"]

1.e4 e5 2.Nf3 Nc6 3.Bc4 Be7 4.d4 d6 5.dxe5 dxe5 6.Bd5 Bd6 7.Ng5 Nh6 8.c3 Ne7
9.Bb3 Ng6 10.g3 Qe7 11.h3 Bd7 12.Qe2 O-O-O 13.Nf3 Bc5 14.Be3 Kb8 15.Nbd2 Bxe3
16.Qxe3 f5 17.O-O-O f4 18.Qe2 Nf7 19.h4 h5 20.Nh2 Be6 21.Nc4 Qc5 22.Rxd8+ Nxd8
23.Rd1 Nf7 24.Nd2 Qc6 25.Ndf3 a6 26.Qc2 Bxb3 27.axb3 Rf8 28.Qe2 Qe6 29.Nd2 Rh8
30.Nc4 fxg3 31.fxg3 Ne7 32.Nf1 g6 33.Nfe3 Rd8 34.Rf1 Nd6 35.Nxd6 cxd6 36.Qc4 Qh3
37.Rf3 Qh1+ 38.Qf1 Qxf1+ 39.Rxf1 Kc8 40.Rf7 Rd7 41.Nc4 Kc7 42.Rf6 Rd8 43.Re6 Rd7
44.Kc2 Nc8 45.Rxg6 Rh7 46.b4 b5 47.Ne3 Ne7 48.Rg5 Kd7 49.b3 Ke6 50.c4 Nc6
51.Kc3 Nd4 52.Nf5 Nxf5 53.exf5+ Kf6 54.Kd3 bxc4+ 55.bxc4 Rb7 56.Rxh5 Rxb4
57.g4 d5 58.Rh6+ Kf7 59.g5 Rxc4 60.f6 Rd4+ 61.Kc2 Rc4+ 62.Kb2 Rb4+ 63.Ka3 Rf4
64.Rh7+ Kg6 65.Rh6+ Kf7 66.h5 e4 67.Rh7+ Ke6 68.h6 Kf5 69.Re7 Kxg5 70.h7 Rf3+
71.Kb2 Kxf6 72.Re8 Rh3 73.h8=Q+ Rxh8 74.Rxh8 Ke5 75.Kc3 d4+ 76.Kc4 d3 77.Kc3 a5
78.Re8+ Kf4 79.Kd2 a4 80.Rf8+ Ke5 81.Ke3 Kd5 82.Ra8  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "17"]
[White "Geller, Efim P"]
[Black "Panno, Oscar"]
[Result "1/2-1/2"]
[WhiteElo "2585"]
[BlackElo "2580"]
[ECO "B83"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Nc6 7.Be3 Be7 8.O-O Bd7
9.Nb3 a6 10.a4 Na5 11.Nxa5 Qxa5 12.Qd2  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "17"]
[White "Gheorghiu, Florin"]
[Black "Ivkov, Borislav"]
[Result "1/2-1/2"]
[WhiteElo "2530"]
[BlackElo "2535"]
[ECO "D36"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 d5 4.d4 Be7 5.cxd5 exd5 6.Bg5 c6 7.Qc2 g6 8.e3 Bf5
9.Bd3 Bxd3 10.Qxd3 Nbd7 11.O-O O-O 12.Bh6 Re8 13.h3 a5  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "17"]
[White "Hug, Werner"]
[Black "Kagan, Shimon"]
[Result "1/2-1/2"]
[WhiteElo "2445"]
[BlackElo "2405"]
[ECO "E91"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 c6 7.O-O a6 8.a3 b5 9.h3 bxc4
10.Bxc4 d5 11.Bd3 dxe4 12.Nxe4 Nd5 13.Re1 Qb6 14.Qc2 Nd7 15.Nc3 e6 16.Na4 Qc7
17.Bd2 a5 18.Rac1 Ba6 19.Be4 N7f6 20.Ne5 Rfc8 21.Nc5 Nxe4 22.Qxe4 Bb5 23.a4 Ba6
24.Rc2 Rd8 25.Rec1 Bc8 26.Ncd3 Ne7 27.Bf4 Qb6 28.Nc5 Rd5 29.Be3 Qd8 30.Ncd3 Bb7
31.Nc5 Bc8 32.Ncd3 Bb7 33.Nc5 Bc8 34.g4 f5 35.Qf4 Bxe5 36.dxe5 Rd1+ 37.Kh2 Rxc1
38.Rxc1 Nd5 39.Qh6 fxg4 40.hxg4 Qf8 41.Kg3 Qxh6 42.Bxh6 Rb8 43.b3 Rb4 44.Bd2  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "17"]
[White "Keres, Paul"]
[Black "Tan Lian Ann"]
[Result "1-0"]
[WhiteElo "2605"]
[BlackElo "2365"]
[ECO "D61"]

1.Nf3 d5 2.c4 c6 3.d4 Nf6 4.Nc3 e6 5.Bg5 Be7 6.e3 O-O 7.Qc2 Nbd7 8.a3 dxc4
9.Bxc4 Nd5 10.Bxe7 Qxe7 11.Ne4 N7f6 12.Rc1 Nxe4 13.Qxe4 Nf6 14.Qh4 Nd5 15.Qg3 Qc7
16.Ne5 Qa5+ 17.Ke2 f6 18.Nd3 Nb6 19.Ba2 Qh5+ 20.f3 Kh8 21.h4 e5 22.dxe5 fxe5
23.Qg5 Qxg5 24.hxg5 Rf5 25.Rcd1 Rxg5 26.Nxe5 Be6 27.Bxe6 Rxe5 28.Bf7 h6 29.Rh5 Re7
30.Bb3 Rd7 31.Re5 Rxd1 32.Kxd1 Rd8+ 33.Ke2 Nd7 34.Re7 Nc5 35.Bc2 a5 36.b4 axb4
37.axb4 Nd7 38.Bf5 Nf6 39.Rxb7 Nd5 40.Bg6  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "17"]
[White "Mecking, Henrique"]
[Black "Ljubojevic, Ljubomir"]
[Result "1/2-1/2"]
[WhiteElo "2575"]
[BlackElo "2570"]
[ECO "A39"]

1.c4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O c5 6.Nc3 Nc6 7.d4 cxd4 8.Nxd4 Nxd4
9.Qxd4 d6 10.Qd3 Bf5 11.e4 Be6 12.Bd2 Nd7 13.b3  1/2-1/2

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "17"]
[White "Savon, Vladimir A"]
[Black "Biyiasas, Peter"]
[Result "1-0"]
[WhiteElo "2570"]
[BlackElo "2395"]
[ECO "E81"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c6 7.Bd3 a6 8.Nge2 b5 9.O-O Nbd7
10.Qc2 Bb7 11.Rfd1 e5 12.Bf2 Re8 13.d5 bxc4 14.Bxc4 c5 15.Na4 Qc7 16.b3 Reb8
17.Nb2 Bc8 18.Bd3 Ne8 19.Be3 Nb6 20.Nc3 Bd7 21.Qe2 Qb7 22.Rab1 Nc7 23.a4 f5
24.Nc4 Nxc4 25.Bxc4 f4 26.Bd2 Qb6 27.Kh1 a5 28.Rbc1 Bc8 29.g3 fxg3 30.hxg3 Ba6
31.Rb1 Rf8 32.Kg2 Rf7 33.Rf1 Bc8 34.Nd1 Na6 35.Nb2 Nb4 36.Bb5 Qd8 37.Nc4 Raa7
38.Be3 Bf8 39.Rh1 Bd7 40.Bxd7 Rfxd7 41.Bd2 Rf7 42.Be3 Ra8 43.Rbd1 Qe7 44.Rd2 Bg7
45.Qd1 Qc7 46.Rf2 Re8 47.Qg1 Bf6 48.Qh2 Bd8 49.Qh3 Qe7 50.Rd1 Qf8 51.Bh6 Qe7
52.Qg4 Bc7 53.Bg5 Qf8 54.Qh4 Rb8 55.Bh6 Qe8 56.Qg4 Qe7 57.Qe6 Re8 58.Qxe7 Rexe7
59.Re2 Re8 60.Rdd2 Rd7 61.f4 exf4 62.gxf4 Bd8 63.Kf3 Kf7 64.e5 dxe5 65.Nxe5+ Rxe5
66.fxe5 Rxd5 67.Ke4 Ke6 68.Rxd5 Nxd5 69.Rd2 Nc3+ 70.Kd3 Nb1 71.Rd1  1-0

[Event "Petropolis Interzonal"]
[Site "Petropolis"]
[Date "1973.??.??"]
[Round "17"]
[White "Smyslov, Vassily"]
[Black "Hort, Vlastimil"]
[Result "1-0"]
[WhiteElo "2600"]
[BlackElo "2610"]
[ECO "B84"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Be7 7.O-O a6 8.f4 O-O
9.Be3 Qc7 10.a4 b6 11.Bf3 Bb7 12.Qe1 Nbd7 13.Bf2 Rac8 14.g4 Nc5 15.g5 Nfd7
16.Rd1 Nb8 17.Be3 Nc6 18.Qg3 Rfe8 19.Bg2 Bf8 20.Rf2 Qd7 21.Nf3 Nb4 22.Ne5 Qc7
23.Ng4 Nd7 24.Bd4 e5 25.fxe5 Nxe5 26.Rdf1 Re7 27.Bxe5 dxe5 28.Nf6+ Kh8 29.Nxh7 Re6
30.Rxf7 Bc5+ 31.Kh1 Re7 32.Rf8+  1-0
