[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.03"]
[Round "1"]
[White "Cuellar Gacharna, Miguel"]
[Black "Uhlmann, Wolfgang"]
[Result "0-1"]
[WhiteElo "2400"]
[BlackElo "2550"]
[ECO "A22"]
[EventDate "1973.06.02"]
[PlyCount "52"]

1.c4 e5 2.Nc3 Nf6 3.g3 Bb4 4.Bg2 O-O 5.Nf3 Re8 6.O-O e4 7.Ne1 Bxc3 8.dxc3 
d6 9.Nc2 Nbd7 10.b3 h6 11.Be3 b6 12.Qd2 Bb7 13.Rad1 Ne5 14.Qc1 Qc8 15.h3 
Nf3+ 16.Kh1 Re5 17.Ne1 Rh5 18.h4 Qg4 19.exf3 exf3 20.Nxf3 Bxf3 21.Bxf3 
Qxf3+ 22.Kg1 g5 23.Rd4 Re8 24.Qd1 Rxe3 25.fxe3 Qxg3+ 26.Kh1 g4 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.03"]
[Round "1"]
[White "Estevez Morales, Guillermo"]
[Black "Karpov, Anatoly"]
[Result "0-1"]
[WhiteElo "2385"]
[BlackElo "2645"]
[ECO "D58"]
[EventDate "1973.06.02"]
[PlyCount "111"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 Be7 5.Bg5 O-O 6.e3 h6 7.Bh4 b6 8.Be2 Bb7 
9.Bxf6 Bxf6 10.cxd5 exd5 11.b4 c6 12.O-O a5 13.a3 Qd6 14.Qb3 axb4 15.axb4 
Nd7 16.Rfd1 Rxa1 17.Rxa1 Be7 18.Ra7 Rb8 19.Na2 Bc8 20.Qc2 Bf6 21.Nc1 Nf8 
22.Nd3 Bf5 23.Qa4 Nd7 24.Ra8 Rxa8 25.Qxa8+ Kh7 26.Qa6 g6 27.Qb7 Kg7 28.h3 
h5 29.Qa7 Bd8 30.Qb7 Qc7 31.Qa8 Be7 32.Nde5 Bxb4 33.Qxc6 Qxc6 34.Nxc6 Bd6 
35.Bb5 Nf6 36.Nd2 Ne8 37.f3 Nc7 38.Be2 Bc2 39.Kf2 Ba4 40.Ne5 b5 41.Nd3 h4 
42.Nb2 Bb4 43.Nb1 Bb3 44.Bd3 Bc4 45.e4 g5 46.exd5 Bxd5 47.Nd1 Bc6 48.Nbc3 
Bd7 49.Ne4 Be7 50.Nc5 Bxc5 51.dxc5 Ne6 52.Nc3 b4 53.Ne4 b3 54.Nd2 Nxc5 55.
Bb1 Kf6 56.Ke3 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.03"]
[Round "1"]
[White "Gligoric, Svetozar"]
[Black "Byrne, Robert"]
[Result "1/2-1/2"]
[WhiteElo "2595"]
[BlackElo "2570"]
[ECO "E92"]
[EventDate "1973.06.02"]
[PlyCount "39"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 O-O 5.e4 d6 6.h3 e5 7.d5 Na6 8.Be3 Nc5 9.
Nd2 a5 10.Be2 Ne8 11.O-O f5 12.exf5 Bxf5 13.Nf3 Qe7 14.Re1 b6 15.Bf1 Nf6 
16.Rc1 Bd7 17.Nh2 Qd8 18.Be2 Rf7 19.Rf1 Qe7 20.Ng4 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.03"]
[Round "1"]
[White "Hubner, Robert"]
[Black "Taimanov, Mark"]
[Result "1/2-1/2"]
[WhiteElo "2600"]
[BlackElo "2595"]
[ECO "A03"]
[EventDate "1973.06.02"]
[PlyCount "42"]

1.g3 d5 2.Bg2 c6 3.f4 g6 4.Nf3 Bg7 5.d3 Nh6 6.e4 dxe4 7.dxe4 Qxd1+ 8.Kxd1 
Na6 9.Ke2 Be6 10.Na3 O-O-O 11.Re1 Nc5 12.Kf1 f6 13.Be3 b6 14.Bd4 Rhe8 15.
Rad1 Kc7 16.b3 Bc8 17.Bxc5 bxc5 18.Kg1 Nf7 19.Nb1 Rxd1 20.Rxd1 e5 21.fxe5 
Nxe5 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.03"]
[Round "1"]
[White "Radulov, Ivan"]
[Black "Quinteros, Miguel Angel"]
[Result "1-0"]
[WhiteElo "2510"]
[BlackElo "2480"]
[ECO "B43"]
[EventDate "1973.06.02"]
[PlyCount "95"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.Bd3 Nf6 7.O-O Bc5 8.Nb3 
Ba7 9.Bg5 Qe5 10.Qd2 Nh5 11.Kh1 h6 12.Be3 g5 13.Na4 Qc7 14.c4 b6 15.Bd4 e5
16.Be3 d6 17.Rfd1 Nf6 18.f3 Nbd7 19.Bf1 Ke7 20.Rac1 Bb7 21.Nc3 Nc5 22.Na1 
Rad8 23.b4 Ncd7 24.Bf2 Nf8 25.Nc2 Ng6 26.Ne3 Kf8 27.Nf5 Ne7 28.Nxe7 Kxe7 
29.Be3 Bc8 30.Qf2 Be6 31.a4 Ra8 32.Nd5+ Bxd5 33.cxd5 Qb7 34.Rc6 Nd7 35.
Rdc1 b5 36.Rc7 Bxe3 37.Qxe3 Qb8 38.a5 Rd8 39.g3 Kf8 40.Bh3 Nf6 41.Bc8 Ne8 
42.R7c6 Qa7 43.Qxa7 Rxa7 44.Bxa6 Rb8 45.Bc8 Ke7 46.Rb6 Raa8 47.Bb7 Ra7 48.
Bc6 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.03"]
[Round "1"]
[White "Rukavina, Josip"]
[Black "Larsen, Bent"]
[Result "0-1"]
[WhiteElo "2460"]
[BlackElo "2620"]
[ECO "A87"]
[EventDate "1973.06.02"]
[PlyCount "56"]

1.c4 g6 2.d4 Bg7 3.g3 c5 4.d5 d6 5.Bg2 Na6 6.Nf3 f5 7.O-O Nf6 8.Nc3 O-O 9.
Ne1 Rb8 10.Qd3 Bd7 11.b3 Ne4 12.Bxe4 fxe4 13.Qc2 Bh3 14.Ng2 Nb4 15.Qd2 e3 
16.fxe3 Rxf1+ 17.Kxf1 e6 18.Bb2 exd5 19.cxd5 Qg5 20.Rd1 Be5 21.e4 Qg4 22.
Kg1 Rf8 23.Ne3 Qg5 24.Ng2 Qh5 25.Re1 Bxg2 26.Kxg2 Rf2+ 27.Kxf2 Qxh2+ 28.
Kf1 Qh3+ 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.03"]
[Round "1"]
[White "Smejkal, Jan"]
[Black "Tal, Mikhail"]
[Result "1/2-1/2"]
[WhiteElo "2570"]
[BlackElo "2655"]
[ECO "E62"]
[EventDate "1973.06.02"]
[PlyCount "64"]

1.c4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O c6 6.d4 d6 7.Nc3 Qa5 8.h3 e5 9.
e4 exd4 10.Nxd4 Qc5 11.Nb3 Qxc4 12.Qxd6 a5 13.Rd1 Qb4 14.Rb1 Nbd7 15.Be3 
Qxd6 16.Rxd6 a4 17.Nc5 a3 18.bxa3 Rxa3 19.Rb3 Rxb3 20.axb3 Re8 21.N3a4 Bf8
22.Rd1 b5 23.Nxd7 Nxd7 24.Nc3 Nc5 25.e5 b4 26.Bxc5 bxc3 27.Bxf8 Kxf8 28.
Rc1 Rxe5 29.Rxc3 Be6 30.Bxc6 Bxh3 31.b4 Re1+ 32.Kh2 Be6 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.03"]
[Round "1"]
[White "Torre, Eugenio"]
[Black "Kuzmin, Gennady"]
[Result "1/2-1/2"]
[WhiteElo "2430"]
[BlackElo "2565"]
[ECO "B08"]
[EventDate "1973.06.02"]
[PlyCount "113"]

1.e4 d6 2.d4 g6 3.Nf3 Nf6 4.Nc3 Bg7 5.Be2 O-O 6.O-O c6 7.a4 a5 8.Re1 Na6 
9.Bf1 Bg4 10.h3 Bxf3 11.Qxf3 Nb4 12.Re2 Nd7 13.Be3 e6 14.Rd1 Nb6 15.Qg3 
Qc7 16.Red2 Rad8 17.h4 Kh8 18.h5 gxh5 19.Qh4 f5 20.Bg5 Rde8 21.Qxh5 Qf7 
22.Be2 Qg6 23.Qh4 Bf6 24.Bxf6+ Qxf6 25.Qxf6+ Rxf6 26.e5 Rff8 27.exd6 Rd8 
28.b3 Rxd6 29.Nb1 Rd7 30.Kf1 Rfd8 31.Bf3 N4d5 32.Re1 Nc7 33.Red1 Kg7 34.
Ke2 Nbd5 35.g3 Re7 36.Kf1 Kf6 37.c4 Nb4 38.Nc3 Red7 39.Ke2 Nca6 40.g4 Rg7 
41.gxf5 exf5 42.Na2 Re7+ 43.Kf1 Nxa2 44.Rxa2 Red7 45.d5 Nc5 46.Rb1 cxd5 
47.cxd5 Nd3 48.Rd2 Nb4 49.Rbd1 Rd6 50.Rd4 h6 51.Rh4 Kg5 52.Rh5+ Kg6 53.Rh4
b6 54.Rhd4 Kg5 55.Kg2 Kf6 56.Rh4 Rg8+ 57.Kf1 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.03"]
[Round "1"]
[White "Tukmakov, Vladimir"]
[Black "Korchnoi, Viktor"]
[Result "0-1"]
[WhiteElo "2560"]
[BlackElo "2635"]
[ECO "E04"]
[EventDate "1973.06.02"]
[PlyCount "76"]

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Nf3 b5 6.a4 c6 7.O-O Bb7 8.Ne5 a6 9.
b3 cxb3 10.Bb2 Qb6 11.Qxb3 Nbd7 12.Nxd7 Nxd7 13.Nd2 Be7 14.d5 cxd5 15.Bxg7
Rg8 16.Bc3 Rg4 17.Rfb1 Bc5 18.e3 Bxe3 19.fxe3 Qxe3+ 20.Kh1 Rc8 21.Ba5 Qxb3
22.Nxb3 Rxa4 23.Rxa4 bxa4 24.Nd2 Bc6 25.Rc1 Ne5 26.Kg1 Kd7 27.Nf3 Nxf3+ 
28.Bxf3 d4 29.Bh5 f5 30.g4 fxg4 31.Rd1 Bd5 32.Rxd4 Rc1+ 33.Kf2 a3 34.Bxg4 
a2 35.Bc3 Rc2+ 36.Ke1 Rxc3 37.Rxd5+ Ke7 38.Rd1 Rb3 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.04"]
[Round "2"]
[White "Byrne, Robert"]
[Black "Rukavina, Josip"]
[Result "1-0"]
[WhiteElo "2570"]
[BlackElo "2460"]
[ECO "C95"]
[EventDate "1973.06.02"]
[PlyCount "65"]

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.Nh4 Re8 12.Nf5 Bf8 13.f3 Bb7 14.Bg5 h6 15.Bh4 d5 
16.exd5 exd4 17.cxd4 g6 18.Ne3 Nb6 19.Nc3 g5 20.Bg3 Nfxd5 21.Nexd5 Rxe1+ 
22.Qxe1 Nxd5 23.Qe4 Nxc3 24.Qg6+ Bg7 25.Qxf7+ Kh8 26.bxc3 b4 27.Be5 Bxe5 
28.dxe5 bxc3 29.Rd1 Qf8 30.Qxc7 Rc8 31.Qxb7 c2 32.Rc1 Rd8 33.Bxc2 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.04"]
[Round "2"]
[White "Karpov, Anatoly"]
[Black "Hubner, Robert"]
[Result "1/2-1/2"]
[WhiteElo "2645"]
[BlackElo "2600"]
[ECO "B42"]
[EventDate "1973.06.02"]
[PlyCount "81"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Nf6 6.O-O Qc7 7.Qe2 d6 8.c4 g6 
9.Nc3 Bg7 10.Be3 O-O 11.Rac1 Nc6 12.Nxc6 bxc6 13.f4 c5 14.Rfd1 Bb7 15.a3 
Bc6 16.b4 cxb4 17.axb4 Qb7 18.e5 dxe5 19.fxe5 Nd7 20.b5 axb5 21.cxb5 Bd5 
22.Bd4 Qb8 23.Re1 Bb7 24.b6 Rd8 25.Bb5 Ra5 26.Qe3 Qa8 27.Qf2 Ba6 28.Rb1 
Bxb5 29.Rxb5 Rxb5 30.Nxb5 Qa5 31.Nd6 Nxe5 32.Bxe5 Rxd6 33.Bxg7 Kxg7 34.Rb1
Rd8 35.Qb2+ Kg8 36.b7 Rb8 37.Qc2 Kg7 38.Qc8 Qa2 39.Qc3+ Kg8 40.Ra1 Qd5 41.
Qc8+ 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.04"]
[Round "2"]
[White "Korchnoi, Viktor"]
[Black "Cuellar Gacharna, Miguel"]
[Result "1-0"]
[WhiteElo "2635"]
[BlackElo "2400"]
[ECO "D58"]
[EventDate "1973.06.02"]
[PlyCount "65"]

1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 b6 8.Be2 Bb7 
9.Bxf6 Bxf6 10.cxd5 exd5 11.O-O Qe7 12.Qb3 c6 13.Rfe1 Bc8 14.Rac1 Be6 15.
Qa4 a5 16.Bd3 Rc8 17.e4 Qd8 18.exd5 cxd5 19.Nxd5 Nd7 20.Bc4 Nf8 21.Nxf6+ 
Qxf6 22.Ne5 Qg5 23.Qd1 b5 24.Bxe6 Nxe6 25.Nc6 Nf4 26.Qf3 Re8 27.h4 Qf6 28.
Re5 Kf8 29.g3 Ne6 30.Rf5 Qg6 31.h5 Qh7 32.Rxf7+ Kg8 33.Ne7+ 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.04"]
[Round "2"]
[White "Kuzmin, Gennady"]
[Black "Estevez Morales, Guillermo"]
[Result "1-0"]
[WhiteElo "2565"]
[BlackElo "2385"]
[ECO "E59"]
[EventDate "1973.06.02"]
[PlyCount "101"]

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 Bd7 12.a4 Rfd8 13.Ba3 b6 14.Qe2 Na5 15.Rac1
Bxb5 16.axb5 Ne4 17.Ne5 Rac8 18.f3 Nd2 19.Rfd1 Nab3 20.Rc2 cxd4 21.exd4 
Nc4 22.Nxc4 Qxc4 23.Bb4 h6 24.Qxc4 Rxc4 25.Rb2 Na5 26.Ra1 Rd7 27.Kf2 Rcc7 
28.Bxa5 bxa5 29.Rb3 e5 30.dxe5 Rd2+ 31.Kg3 Re2 32.Rxa5 g5 33.Rba3 Rxe5 34.
Rxa7 Rxa7 35.Rxa7 Rxb5 36.Ra2 Kg7 37.Kf2 Rc5 38.Rc2 Kf6 39.Ke3 Ke5 40.Kd3 
f5 41.c4 h5 42.Re2+ Kd6 43.Kd4 Ra5 44.Rc2 Ra4 45.g3 h4 46.gxh4 gxh4 47.f4 
Ke6 48.Rc3 Ra1 49.h3 Kd6 50.c5+ Ke6 51.Re3+ 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.04"]
[Round "2"]
[White "Larsen, Bent"]
[Black "Radulov, Ivan"]
[Result "1-0"]
[WhiteElo "2620"]
[BlackElo "2510"]
[ECO "E14"]
[EventDate "1973.06.02"]
[PlyCount "51"]

1.c4 Nf6 2.Nf3 e6 3.b3 Be7 4.Bb2 O-O 5.Nc3 d5 6.e3 b6 7.d4 Bb7 8.Bd3 c5 9.
O-O Nbd7 10.Qe2 Ne4 11.cxd5 exd5 12.Rfd1 Nxc3 13.Bxc3 Rc8 14.Rac1 Rc7 15.
dxc5 bxc5 16.Qc2 g6 17.e4 Qa8 18.Qd2 Bf6 19.Qf4 Qd8 20.Ba5 Nb6 21.b4 Be7 
22.exd5 Bd6 23.Qh6 cxb4 24.Ng5 f5 25.Ne6 Qd7 26.Rxc7 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.04"]
[Round "2"]
[White "Quinteros, Miguel Angel"]
[Black "Smejkal, Jan"]
[Result "1-0"]
[WhiteElo "2480"]
[BlackElo "2570"]
[ECO "A09"]
[EventDate "1973.06.02"]
[PlyCount "80"]

1.Nf3 Nf6 2.g3 d5 3.Bg2 c5 4.O-O Nc6 5.c4 d4 6.d3 g6 7.e3 Bg7 8.exd4 cxd4 
9.Bd2 a5 10.Na3 O-O 11.Nb5 Nd7 12.Qc2 Nc5 13.Rfe1 Bf5 14.Bf1 Qd7 15.a3 Bg4
16.Nh4 Bf6 17.f3 Bh3 18.Bh6 Bxf1 19.Rxf1 Rfc8 20.Ng2 Ne5 21.Qe2 Ncxd3 22.
b3 Nc5 23.Rab1 a4 24.Bf4 Ncd3 25.Rfd1 Nxf4 26.gxf4 Nc6 27.b4 Rd8 28.Ne1 b6
29.Nd3 e6 30.Rd2 Ne7 31.Rbd1 Nf5 32.Ne5 Bxe5 33.fxe5 Qe7 34.Nxd4 Qg5+ 35.
Kh1 Ne3 36.Nc6 Nxd1 37.Rxd1 Rxd1+ 38.Qxd1 Qf4 39.Qd3 Kg7 40.Kg2 h5 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.04"]
[Round "2"]
[White "Taimanov, Mark"]
[Black "Tukmakov, Vladimir"]
[Result "1/2-1/2"]
[WhiteElo "2595"]
[BlackElo "2560"]
[ECO "A36"]
[EventDate "1973.06.02"]
[PlyCount "49"]

1.c4 Nf6 2.Nc3 c5 3.g3 g6 4.Bg2 Bg7 5.e4 Nc6 6.Nge2 O-O 7.O-O Ne8 8.a3 Nc7
9.Rb1 a5 10.d3 Ne6 11.h3 d6 12.Kh2 Rb8 13.f4 Ned4 14.Nxd4 Nxd4 15.b4 axb4 
16.axb4 cxb4 17.Rxb4 Bd7 18.Be3 Qa5 19.Nd5 e6 20.Nb6 Qxb4 21.Nxd7 b5 22.
Nxf8 Rxf8 23.cxb5 Qxb5 24.Qb1 Rc8 25.Qxb5 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.04"]
[Round "2"]
[White "Tal, Mikhail"]
[Black "Torre, Eugenio"]
[Result "0-1"]
[WhiteElo "2655"]
[BlackElo "2430"]
[ECO "A39"]
[EventDate "1973.06.02"]
[PlyCount "134"]

1.Nf3 Nf6 2.c4 g6 3.Nc3 Bg7 4.g3 O-O 5.Bg2 c5 6.d4 cxd4 7.Nxd4 Nc6 8.O-O 
Nxd4 9.Qxd4 d6 10.Qd3 a6 11.Be3 Ng4 12.Bd4 Ne5 13.Qd1 Rb8 14.Rc1 Be6 15.
Nd5 b5 16.cxb5 Bxd5 17.Bxd5 axb5 18.Qd2 e6 19.Bg2 Nc4 20.Qc3 Bxd4 21.Qxd4 
d5 22.b3 Qb6 23.Rfd1 Qxd4 24.Rxd4 Nd6 25.Rc6 Rfd8 26.e3 Rbc8 27.Rb6 Rc1+ 
28.Bf1 Ne4 29.Kg2 e5 30.Rb4 Rc2 31.a4 bxa4 32.bxa4 Rxf2+ 33.Kg1 Ra2 34.Rb8
Rxb8 35.Rxb8+ Kg7 36.Rb5 Nc3 37.Rc5 Nd1 38.Rxd5 Nxe3 39.Rxe5 Nxf1 40.Kxf1 
Rxh2 41.Re7 Ra2 42.Re4 h5 43.Rh4 f6 44.Kg1 Kf7 45.Kf1 Ke6 46.Re4+ Kf5 47.
Rf4+ Ke5 48.Rh4 Rd2 49.Rb4 g5 50.Rb3 Ra2 51.Rb4 Kf5 52.Kg1 Kg6 53.Rc4 g4 
54.Rb4 f5 55.Rb8 h4 56.gxh4 Rxa4 57.Kg2 Ra3 58.Rg8+ Kf7 59.Rg5 Kf6 60.Rg8 
Rh3 61.Rh8 Ke5 62.h5 Kf6 63.h6 Kg6 64.Rg8+ Kxh6 65.Kf2 Ra3 66.Kg2 Kh5 67.
Kf2 Kh4 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.04"]
[Round "2"]
[White "Uhlmann, Wolfgang"]
[Black "Gligoric, Svetozar"]
[Result "1/2-1/2"]
[WhiteElo "2550"]
[BlackElo "2595"]
[ECO "E73"]
[EventDate "1973.06.02"]
[PlyCount "121"]

1.c4 g6 2.e4 Bg7 3.d4 d6 4.Nc3 Nf6 5.Be2 O-O 6.Bg5 h6 7.Be3 e5 8.d5 Nbd7 
9.Qd2 h5 10.h3 Nc5 11.Bf3 a5 12.Nge2 Bd7 13.Nc1 Nh7 14.g4 h4 15.g5 c6 16.
Nb3 cxd5 17.Nxc5 d4 18.Nxd7 Qxd7 19.Nd5 Qd8 20.Rg1 Rc8 21.Be2 Re8 22.Bxd4 
exd4 23.Bd3 Nf8 24.Rg4 Nd7 25.Rxh4 Ne5 26.Ke2 Rc5 27.b3 b5 28.Rc1 a4 29.f4
Nxd3 30.Qxd3 axb3 31.axb3 Qa8 32.Rg4 bxc4 33.bxc4 Ra5 34.Rg3 Rb8 35.Nc7 
Qc6 36.Nd5 Ra2+ 37.Kf3 Qa4 38.Kg4 Qd7+ 39.Kh4 Kh7 40.Rc2 Ra1 41.Nf6+ Bxf6 
42.gxf6 Rh8 43.f5 Kg8+ 44.Kg4 Ra5 45.Kf3 Qc6 46.fxg6 Rh4 47.Re2 fxg6 48.
Rxg6+ Kf7 49.Rg7+ Kxf6 50.Qxd4+ Re5 51.Qa7 Qe8 52.Kg3 Reh5 53.e5+ dxe5 54.
Rf2+ Rf4 55.Rg4 Rxh3+ 56.Kxh3 Qh5+ 57.Kg2 Qxg4+ 58.Kf1 Kg6 59.Qa6+ Kh5 60.
Rxf4 exf4 61.Qa5+ 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.05"]
[Round "3"]
[White "Cuellar Gacharna, Miguel"]
[Black "Gligoric, Svetozar"]
[Result "0-1"]
[WhiteElo "2400"]
[BlackElo "2595"]
[ECO "E68"]
[EventDate "1973.06.02"]
[PlyCount "140"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.c4 Nbd7 7.Nc3 e5 8.e4 exd4
9.Nxd4 Re8 10.h3 Nc5 11.Re1 a5 12.Nb3 Ne6 13.a4 Nd7 14.Be3 Ndc5 15.Kh2 Bd7
16.Qc2 Bc6 17.Nb5 Nxb3 18.Qxb3 Nc5 19.Bxc5 dxc5 20.Rad1 Qe7 21.e5 Bxg2 22.
Kxg2 Rad8 23.Qf3 c6 24.Nd6 Rf8 25.Qe3 b6 26.f4 f6 27.Qe4 fxe5 28.fxe5 Qc7 
29.Qg4 Qe7 30.Qe4 Qc7 31.h4 Rd7 32.Qg4 Re7 33.e6 Bxb2 34.h5 Rf6 35.Nf7 Bd4
36.Rxd4 cxd4 37.Qxd4 Rexf7 38.exf7+ Kxf7 39.hxg6+ Rxg6 40.Re5 Qd6 41.Qe3 
Rf6 42.Qe2 Qd7 43.Qh5+ Kf8 44.Re2 c5 45.Qe5 Qd6 46.Qh5 Qc6+ 47.Kh2 Rf1 48.
Kh3 Rh1+ 49.Rh2 Qe6+ 50.Kg2 Qe4+ 51.Kh3 Ke7 52.Qg5+ Kd7 53.Qg7+ Kc6 54.Qf7
Rd1 55.Rf2 Rh1+ 56.Rh2 Re1 57.Rf2 Qe6+ 58.Qxe6+ Rxe6 59.Kg4 Rg6+ 60.Kh4 
Kd6 61.Rf7 h5 62.Rf3 Rg4+ 63.Kxh5 Rxc4 64.Ra3 Rc1 65.g4 c4 66.g5 c3 67.Kg6
Kc5 68.Rb3 c2 69.Rb2 Kc4 70.Rxb6 Rb1 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.05"]
[Round "3"]
[White "Estevez Morales, Guillermo"]
[Black "Tal, Mikhail"]
[Result "1-0"]
[WhiteElo "2385"]
[BlackElo "2655"]
[ECO "B84"]
[EventDate "1973.06.02"]
[PlyCount "73"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 a6 7.a4 Qc7 8.Be3 b6 
9.f4 Bb7 10.Bf3 Nbd7 11.Qe2 Be7 12.O-O O-O 13.Kh1 Nc5 14.Bf2 d5 15.exd5 
Nxd5 16.Bxd5 exd5 17.Qg4 Bf6 18.Nf5 Ne6 19.Bh4 Bxh4 20.Qxh4 Rfe8 21.Rad1 
Qc5 22.Qg3 Kh8 23.Ne2 Qf8 24.Ned4 Nc5 25.Qh4 Re4 26.Ng3 Qe7 27.Qg4 Bc8 28.
Qh5 g6 29.Qh6 Bg4 30.Nxe4 Qxe4 31.Rfe1 Bxd1 32.Rxe4 Nxe4 33.f5 Re8 34.fxg6
fxg6 35.Ne6 Rg8 36.Qf4 h5 37.Qh6# 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.05"]
[Round "3"]
[White "Hubner, Robert"]
[Black "Kuzmin, Gennady"]
[Result "1/2-1/2"]
[WhiteElo "2600"]
[BlackElo "2565"]
[ECO "C88"]
[EventDate "1973.06.02"]
[PlyCount "47"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.a4 Bb7
9.d3 d6 10.c3 Nd7 11.Bc2 Bf6 12.Na3 Nb6 13.axb5 axb5 14.b4 Ne7 15.Be3 c6 
16.d4 Ng6 17.Bb3 exd4 18.Bxd4 Na4 19.c4 Nb2 20.Qc2 bxc4 21.Nxc4 Rxa1 22.
Rxa1 Nxc4 23.Qxc4 c5 24.Bxf6 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.05"]
[Round "3"]
[White "Korchnoi, Viktor"]
[Black "Taimanov, Mark"]
[Result "1-0"]
[WhiteElo "2635"]
[BlackElo "2595"]
[ECO "A22"]
[EventDate "1973.06.02"]
[PlyCount "105"]

1.c4 e5 2.Nc3 Nf6 3.g3 Bb4 4.Bg2 O-O 5.e4 c6 6.Nge2 d5 7.cxd5 cxd5 8.exd5 
Bf5 9.d4 e4 10.Bg5 Nbd7 11.Qb3 Qb6 12.O-O h6 13.Bf4 Rfe8 14.Na4 Qa5 15.a3 
Bf8 16.Nec3 g5 17.Be3 Rac8 18.Rfc1 Ng4 19.Qxb7 Rb8 20.Qc6 Rec8 21.b4 Rxc6 
22.bxa5 Ra6 23.Bxe4 Bxe4 24.Nxe4 Rxa5 25.Nac5 Nxc5 26.dxc5 f5 27.Bd2 Ra4 
28.Nd6 Rd4 29.Bb4 Rxd5 30.Rd1 Nf6 31.c6 Bxd6 32.Bxd6 Rc8 33.c7 Kf7 34.Rxd5
Nxd5 35.Re1 Kf6 36.f4 gxf4 37.Re5 Nb6 38.Rc5 fxg3 39.Bxg3 h5 40.Kf2 Ke6 
41.Re5+ Kf6 42.Ra5 Ke6 43.Rxa7 Kd7 44.Ra5 Rf8 45.Bf4 Kc6 46.Re5 Kb7 47.Rb5
Kc6 48.a4 Ra8 49.Kf3 Rf8 50.Rb4 Re8 51.a5 Nc8 52.Rd4 Kb7 53.a6+ 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.05"]
[Round "3"]
[White "Radulov, Ivan"]
[Black "Byrne, Robert"]
[Result "0-1"]
[WhiteElo "2510"]
[BlackElo "2570"]
[ECO "C07"]
[EventDate "1973.06.02"]
[PlyCount "58"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.Ngf3 Nc6 5.Bb5 a6 6.exd5 axb5 7.dxc6 bxc6 8.
dxc5 Bxc5 9.O-O Nf6 10.Qe2 Be7 11.Rd1 Qb6 12.c4 O-O 13.Ne4 bxc4 14.Bg5 Ba6
15.Nxf6+ Bxf6 16.Bxf6 gxf6 17.Nd4 Rfd8 18.Qg4+ Kf8 19.Qh4 c5 20.Nf5 exf5 
21.Qxh7 Bc8 22.Re1 Be6 23.h4 Qc6 24.Re2 Rd4 25.Rae1 Rg4 26.g3 Re4 27.Rxe4 
fxe4 28.h5 Ke7 29.Rxe4 Rxa2 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.05"]
[Round "3"]
[White "Rukavina, Josip"]
[Black "Uhlmann, Wolfgang"]
[Result "1/2-1/2"]
[WhiteElo "2460"]
[BlackElo "2550"]
[ECO "A25"]
[EventDate "1973.06.02"]
[PlyCount "81"]

1.g3 e5 2.Bg2 Nc6 3.c4 g6 4.Nc3 Bg7 5.d3 d6 6.Rb1 f5 7.e3 Nf6 8.Nge2 O-O 
9.O-O Be6 10.Nd5 Qd7 11.b4 Nh5 12.b5 Nd8 13.f4 c6 14.bxc6 bxc6 15.Ndc3 Re8
16.Qa4 Rc8 17.Bd2 Bf7 18.d4 exd4 19.Nxd4 Re7 20.Rfc1 Nf6 21.h3 c5 22.Nf3 
Qxa4 23.Nxa4 Ne4 24.Be1 Be8 25.Nb2 Rb7 26.Nd1 Rxb1 27.Rxb1 Bf7 28.Bf1 Nc6 
29.a3 Rb8 30.Rxb8+ Nxb8 31.Nd2 Nc3 32.Nxc3 Bxc3 33.Kf2 Nd7 34.Nb1 Bg7 35.
Bc3 Nf6 36.Bxf6 Bxf6 37.Ke1 g5 38.Kd2 gxf4 39.gxf4 Kg7 40.Nc3 Bxc3+ 41.
Kxc3 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.05"]
[Round "3"]
[White "Smejkal, Jan"]
[Black "Larsen, Bent"]
[Result "0-1"]
[WhiteElo "2570"]
[BlackElo "2620"]
[ECO "A95"]
[EventDate "1973.06.02"]
[PlyCount "80"]

1.d4 f5 2.g3 Nf6 3.Bg2 e6 4.Nf3 Bb4+ 5.c3 Be7 6.O-O O-O 7.c4 c6 8.Nc3 d5 
9.Qc2 Ne4 10.Ne5 Nd7 11.Nxe4 fxe4 12.Bf4 Bf6 13.Rad1 Bxe5 14.Bxe5 Nxe5 15.
dxe5 Qe7 16.Qc3 Bd7 17.f3 exf3 18.exf3 Qc5+ 19.Rd4 a5 20.f4 Qa7 21.f5 Rae8
22.cxd5 cxd5 23.Kh1 Rc8 24.Qd2 Rc2 25.Qxc2 Qxd4 26.Qc3 Qxc3 27.bxc3 Rc8 
28.Rd1 Rc5 29.fxe6 Bxe6 30.Kg1 Kf7 31.Rd3 Rb5 32.Rd2 a4 33.a3 Rb3 34.Bxd5 
Rxa3 35.c4 Rb3 36.Kf2 a3 37.Ke2 Rb2 38.Rxb2 axb2 39.Be4 Bxc4+ 40.Kd2 Ba2 
0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.05"]
[Round "3"]
[White "Torre, Eugenio"]
[Black "Quinteros, Miguel Angel"]
[Result "1/2-1/2"]
[WhiteElo "2430"]
[BlackElo "2480"]
[ECO "B93"]
[EventDate "1973.06.02"]
[PlyCount "48"]

1.e4 c5 2.Nf3 d6 3.Nc3 a6 4.d4 cxd4 5.Nxd4 Nf6 6.Be2 Nbd7 7.f4 Qb6 8.Nb3 
g6 9.Qd3 Qc7 10.g4 Nc5 11.Nxc5 Qxc5 12.Be3 Qa5 13.b4 Qd8 14.Bd4 Rg8 15.Qg3
Nd7 16.Rd1 e6 17.O-O b6 18.f5 gxf5 19.exf5 e5 20.Be3 Bb7 21.Bf3 Rc8 22.
Bxb7 Rxc3 23.g5 Qc7 24.Bg2 Be7 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.05"]
[Round "3"]
[White "Tukmakov, Vladimir"]
[Black "Karpov, Anatoly"]
[Result "0-1"]
[WhiteElo "2560"]
[BlackElo "2645"]
[ECO "C95"]
[EventDate "1973.06.02"]
[PlyCount "66"]

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.c4 c6 12.Bg5 h6 13.Bh4 Nh5 14.Bxe7 Qxe7 15.cxb5 
axb5 16.Nc3 b4 17.Nb1 Nf4 18.Nbd2 exd4 19.Nxd4 Ne5 20.N2f3 Qf6 21.Nxe5 
dxe5 22.Nf5 Bxf5 23.exf5 Rad8 24.Qf3 Rd2 25.Re3 Rxb2 26.Rae1 Re8 27.Re4 
Nd5 28.Qg3 Nc3 29.Rxb4 Ne2+ 30.Rxe2 Rxe2 31.Rb7 Re7 32.Rb8+ Kh7 33.Kf1 Rd2
0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.07"]
[Round "4"]
[White "Byrne, Robert"]
[Black "Smejkal, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2570"]
[BlackElo "2570"]
[ECO "C78"]
[EventDate "1973.06.02"]
[PlyCount "81"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O b5 6.Bb3 Bb7 7.d4 Nxd4 8.Nxd4 
exd4 9.c3 Nxe4 10.Re1 Be7 11.Qg4 O-O 12.Rxe4 Bxe4 13.Qxe4 Bf6 14.Bd2 Re8 
15.Qf3 c6 16.cxd4 d5 17.Nc3 Bxd4 18.Rc1 Qf6 19.Qxf6 Bxf6 20.Kf1 Rac8 21.
Bc2 g6 22.Bd3 c5 23.Nxd5 Bxb2 24.Rc2 Bd4 25.Ba5 Kg7 26.Be2 Rc6 27.Bf3 Rd6 
28.g3 g5 29.Nc3 c4 30.Ne4 Rg6 31.g4 Be5 32.Ng3 Bxg3 33.hxg3 Rd6 34.Bb4 Rd3
35.Be2 Rd7 36.a4 f6 37.a5 Re6 38.Bc5 Rd5 39.Be3 Rd7 40.Ke1 Red6 41.Bc5 
1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.07"]
[Round "4"]
[White "Gligoric, Svetozar"]
[Black "Rukavina, Josip"]
[Result "1/2-1/2"]
[WhiteElo "2595"]
[BlackElo "2460"]
[ECO "D25"]
[EventDate "1973.06.02"]
[PlyCount "56"]

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 Bg4 5.Bxc4 e6 6.h3 Bh5 7.Nc3 Nbd7 8.O-O 
Bd6 9.Be2 O-O 10.e4 e5 11.Be3 exd4 12.Nxd4 Bxe2 13.Qxe2 Re8 14.Nf5 Be5 15.
Bg5 c6 16.Rad1 Qc7 17.Qf3 Re6 18.Nd4 Rd6 19.Qe3 Nf8 20.Bf4 Bxf4 21.Qxf4 
Rd7 22.Qxc7 Rxc7 23.e5 N6d7 24.f4 Re8 25.Ne4 Nb6 26.Nd6 Rd8 27.Nb3 Nd5 28.
Rf3 f6 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.07"]
[Round "4"]
[White "Karpov, Anatoly"]
[Black "Korchnoi, Viktor"]
[Result "1/2-1/2"]
[WhiteElo "2645"]
[BlackElo "2635"]
[ECO "B08"]
[EventDate "1973.06.02"]
[PlyCount "36"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.Be2 O-O 6.O-O Nc6 7.d5 Nb8 8.h3 c6 
9.a4 a5 10.Bg5 Bd7 11.Re1 Na6 12.dxc6 Bxc6 13.Bb5 Nb4 14.Qe2 h6 15.Bf4 e5 
16.Bh2 Rc8 17.Rad1 Qe7 18.Rd2 h5 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.07"]
[Round "4"]
[White "Kuzmin, Gennady"]
[Black "Tukmakov, Vladimir"]
[Result "1-0"]
[WhiteElo "2565"]
[BlackElo "2560"]
[ECO "B80"]
[EventDate "1973.06.02"]
[PlyCount "81"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.g3 Bd7 7.Bg2 Nxd4 8.Qxd4 
Nf6 9.O-O Be7 10.Bg5 Qc7 11.Rad1 a6 12.Rfe1 h6 13.Bxf6 gxf6 14.Re3 Rc8 15.
Qd2 b5 16.a3 Kf8 17.Rc1 Qb6 18.Ne2 Rc5 19.Nf4 Bc8 20.b4 Rc7 21.c4 bxc4 22.
Rec3 Bb7 23.Rxc4 Rxc4 24.Rxc4 Rg8 25.a4 Rg5 26.a5 Qd8 27.h4 Rb5 28.Kh2 Kg7
29.Qc3 Kh7 30.Qc2 Kg7 31.Qc3 Kh7 32.Rc7 Rc5 33.Rxc5 dxc5 34.bxc5 Qc7 35.
Nd3 Bd8 36.Qb2 Bc6 37.e5 Bb5 38.Qd4 f5 39.c6 Qxa5 40.Nf4 Qc7 41.Qd6 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.07"]
[Round "4"]
[White "Larsen, Bent"]
[Black "Torre, Eugenio"]
[Result "1/2-1/2"]
[WhiteElo "2620"]
[BlackElo "2430"]
[ECO "A27"]
[EventDate "1973.06.02"]
[PlyCount "192"]

1.c4 g6 2.Nf3 Bg7 3.Nc3 e5 4.d4 exd4 5.Nxd4 Nc6 6.Nxc6 bxc6 7.g3 Ne7 8.Bg2
O-O 9.O-O d6 10.Bg5 f6 11.Bd2 Be6 12.Qa4 Bd7 13.c5 d5 14.e4 f5 15.exd5 
cxd5 16.Qh4 Bf6 17.Bg5 Bxg5 18.Qxg5 c6 19.Rfe1 Rf7 20.Re5 Kg7 21.Rd1 f4 
22.gxf4 h6 23.Qh4 Qf8 24.Qg3 Rb8 25.Ne2 Kh7 26.Qc3 a5 27.Rd4 Rb5 28.Ra4 
Qb8 29.b3 Qa7 30.b4 Qb8 31.a3 axb4 32.axb4 Nf5 33.Bh3 Rb7 34.Bxf5 Bxf5 35.
Qa3 Ra7 36.Nd4 Rxa4 37.Qxa4 Ra7 38.Qb3 Be4 39.f3 Ra1+ 40.Kg2 Rb1 41.Qa4 
Rb2+ 42.Kg3 g5 43.Qxc6 gxf4+ 44.Kxf4 Qf8+ 45.Nf5 Bxf5 46.Rxf5 Qe7 47.Rf6 
Rxb4+ 48.Kf5 Rh4 49.Qe6 Rh5+ 50.Kf4 Qc7+ 51.Qd6 Qg7 52.h4 Rxh4+ 53.Kf5 Rh1
54.Qf8 Qxf8 55.Rxf8 Kg7 56.Rd8 d4 57.Rd7+ Kf8 58.Kf6 Ke8 59.Rxd4 Rc1 60.
Rd5 Rf1 61.Rf5 Kd7 62.f4 h5 63.Kg5 h4 64.Kxh4 Ke6 65.Re5+ Kf6 66.Kg4 Rc1 
67.Rh5 Kg6 68.Rd5 Kf6 69.Kf3 Rc3+ 70.Ke4 Rc4+ 71.Ke3 Ke6 72.Rh5 Kd7 73.Kf3
Ke7 74.Kg4 Rc1 75.f5 Kf8 76.Rh8+ Ke7 77.Rh7+ Ke8 78.Rc7 Kd8 79.Rc6 Kd7 80.
Rd6+ Ke7 81.f6+ Kf7 82.c6 Kg6 83.Kf3 Re1 84.Kf4 Re2 85.Rd5 Rc2 86.Rd6 Re2 
87.f7+ Kxf7 88.Kf5 Ke7 89.Rd7+ Ke8 90.Kf6 Re1 91.Rd5 Rc1 92.Rd6 Rf1+ 93.
Ke6 Re1+ 94.Kd5 Rd1+ 95.Kc5 Rxd6 96.Kxd6 Kd8 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.07"]
[Round "4"]
[White "Quinteros, Miguel Angel"]
[Black "Estevez Morales, Guillermo"]
[Result "1/2-1/2"]
[WhiteElo "2480"]
[BlackElo "2385"]
[ECO "A15"]
[EventDate "1973.06.02"]
[PlyCount "88"]

1.Nf3 Nf6 2.c4 b6 3.d3 g6 4.e4 d6 5.Nc3 Bg7 6.d4 O-O 7.Bd3 Bg4 8.Be3 Nfd7 
9.Be2 c5 10.d5 Na6 11.h3 Bxf3 12.Bxf3 Nc7 13.Be2 e6 14.O-O exd5 15.exd5 f5
16.Qd2 Qe7 17.Rfe1 Rae8 18.Kh1 Qh4 19.f4 Rf7 20.Bd3 Bh6 21.Rf1 Rfe7 22.Rf3
Bg7 23.Bf2 Qh6 24.Re1 Ne5 25.Rfe3 Qxf4 26.Bf1 Bf6 27.Qc2 Nxc4 28.Rxe7 Rxe7
29.Rxe7 Bxe7 30.Qa4 Qxf2 31.Bxc4 Bg5 32.Ne2 b5 33.Bxb5 Nxb5 34.Qxb5 Qf1+ 
35.Kh2 Bf4+ 36.g3 Qf2+ 37.Kh1 Qf3+ 38.Kh2 Qf2+ 39.Kh1 Qf3+ 40.Kh2 Be5 41.
Qe8+ Kg7 42.Qe7+ Kh6 43.Qh4+ Kg7 44.Qe7+ Kh6 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.07"]
[Round "4"]
[White "Taimanov, Mark"]
[Black "Cuellar Gacharna, Miguel"]
[Result "1/2-1/2"]
[WhiteElo "2595"]
[BlackElo "2400"]
[ECO "D67"]
[EventDate "1973.06.02"]
[PlyCount "116"]

1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.Bg5 Be7 5.e3 O-O 6.Rc1 Nbd7 7.Nf3 c6 8.Bd3 
dxc4 9.Bxc4 Nd5 10.Bxe7 Qxe7 11.Ne4 N5f6 12.Ng3 e5 13.O-O e4 14.Nd2 Re8 
15.Bb3 Nb6 16.Bc2 Bg4 17.Qe1 Be6 18.Ngxe4 Nxe4 19.Bxe4 Bxa2 20.b3 a5 21.
Ra1 Bxb3 22.Bxh7+ Kxh7 23.Nxb3 a4 24.Nc5 Kg8 25.Qb1 Nc4 26.Qc1 b5 27.Nxa4 
Nxe3 28.Re1 bxa4 29.Qxc6 Qa7 30.fxe3 a3 31.Qc3 Rec8 32.Qd3 Qa5 33.h3 Rc3 
34.Qe4 Qa4 35.Rf1 Qe8 36.Qxe8+ Rxe8 37.Rfe1 Rexe3 38.Rxe3 Rxe3 39.Kf2 Rb3 
40.Rc1 Rb8 41.d5 a2 42.Ra1 Ra8 43.Ke3 f6 44.h4 Kf7 45.h5 Ra4 46.Kd3 Ke7 
47.Kc3 Kd6 48.Kb3 Ra8 49.Rxa2 Rxa2 50.Kxa2 Kxd5 51.Kb3 Kd4 52.Kb4 f5 53.
Kb5 Kd5 54.Kb6 f4 55.Kc7 Ke6 56.Kd8 Kf7 57.Kd7 Kf6 58.Ke8 Kg5 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.07"]
[Round "4"]
[White "Tal, Mikhail"]
[Black "Hubner, Robert"]
[Result "0-1"]
[WhiteElo "2655"]
[BlackElo "2600"]
[ECO "B43"]
[EventDate "1973.06.02"]
[PlyCount "68"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.Be2 b5 7.a3 Bb7 8.f4 Nc6 
9.Be3 Nxd4 10.Qxd4 Ne7 11.Rd1 Rd8 12.O-O Nc6 13.Qd2 Be7 14.Qe1 d6 15.f5 
O-O 16.f6 Bxf6 17.Rxf6 gxf6 18.Qh4 Qe7 19.Rd3 f5 20.Bg5 f6 21.Bh6 fxe4 22.
Rg3+ Kh8 23.Bg7+ Qxg7 24.Rxg7 Kxg7 25.Nxe4 Ne5 26.Ng3 Ng6 27.Qd4 Kh8 28.
Nh5 Ne5 29.Qh4 Rd7 30.Nxf6 Rg7 31.Qh6 Rxg2+ 32.Kf1 Rf7 33.Bh5 Ng4 34.Bxg4 
Rxg4 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.07"]
[Round "4"]
[White "Uhlmann, Wolfgang"]
[Black "Radulov, Ivan"]
[Result "0-1"]
[WhiteElo "2550"]
[BlackElo "2510"]
[ECO "A37"]
[EventDate "1973.06.02"]
[PlyCount "84"]

1.c4 c5 2.Nf3 Nc6 3.Nc3 e5 4.g3 g6 5.Bg2 Bg7 6.O-O Nge7 7.Ne1 O-O 8.Nc2 d6
9.d3 Be6 10.a3 Qd7 11.Ne4 f6 12.b4 b6 13.Bd2 h6 14.Ne3 Rad8 15.Nd5 f5 16.
Nec3 f4 17.b5 Nd4 18.gxf4 Nxd5 19.Nxd5 Bh3 20.f3 Rde8 21.e4 Bxg2 22.Kxg2 
exf4 23.Nxf4 g5 24.Nh5 Nxf3 25.Nxg7 Nh4+ 26.Kh1 Qh3 27.Qe2 Kxg7 28.Rg1 
Qf3+ 29.Qxf3 Rxf3 30.Be1 Ng6 31.Rd1 Ne5 32.Bc3 Kg6 33.Rg3 Ref8 34.a4 Rxg3 
35.hxg3 Rf2 36.Bxe5 dxe5 37.a5 Kh5 38.axb6 axb6 39.Kg1 Rf3 40.d4 exd4 41.
Re1 Rxg3+ 42.Kf2 Re3 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.08"]
[Round "5"]
[White "Estevez Morales, Guillermo"]
[Black "Larsen, Bent"]
[Result "0-1"]
[WhiteElo "2385"]
[BlackElo "2620"]
[ECO "B44"]
[EventDate "1973.06.02"]
[PlyCount "50"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nb5 d6 6.c4 Nf6 7.N1c3 a6 8.Na3 
Be7 9.Be2 O-O 10.O-O b6 11.Be3 Bb7 12.Rc1 Ne5 13.Qd4 Ned7 14.Nc2 Qb8 15.
Rfd1 Re8 16.f3 d5 17.exd5 exd5 18.Bf4 Qa7 19.Kh1 Bc5 20.Qd2 dxc4 21.Bxc4 
b5 22.Bb3 Ne5 23.Nd5 Bxd5 24.Bxd5 Rad8 25.Ne3 Nc4 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.08"]
[Round "5"]
[White "Hubner, Robert"]
[Black "Quinteros, Miguel Angel"]
[Result "1/2-1/2"]
[WhiteElo "2600"]
[BlackElo "2480"]
[ECO "B80"]
[EventDate "1973.06.02"]
[PlyCount "84"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.g3 Bg4 7.f3 Bd7 8.Be3 Nc6
9.Qd2 e6 10.g4 h6 11.O-O-O b5 12.h4 Ne5 13.Be2 Nc4 14.Bxc4 bxc4 15.Qe2 Qc7
16.g5 Nh5 17.Rhg1 hxg5 18.hxg5 g6 19.f4 Rb8 20.f5 e5 21.fxg6 fxg6 22.Nf3 
Qb7 23.Qxc4 Qxb2+ 24.Kd2 Qb4 25.Qxb4 Rxb4 26.Kd3 Be6 27.a3 Bc4+ 28.Kd2 Rb7
29.Rb1 Rhh7 30.Nd5 Bxd5 31.exd5 Rxb1 32.Rxb1 Ng7 33.Rb8+ Kf7 34.Rb7+ Kg8 
35.Bf2 Rh5 36.Ke2 Nf5 37.c4 Be7 38.c5 dxc5 39.Nxe5 Rxg5 40.Rb6 Nd4+ 41.
Bxd4 cxd4 42.Nxg6 Bxa3 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.08"]
[Round "5"]
[White "Korchnoi, Viktor"]
[Black "Kuzmin, Gennady"]
[Result "1/2-1/2"]
[WhiteElo "2635"]
[BlackElo "2565"]
[ECO "A30"]
[EventDate "1973.06.02"]
[PlyCount "68"]

1.Nf3 Nf6 2.c4 b6 3.Nc3 Bb7 4.d3 g6 5.e4 Bg7 6.g3 O-O 7.Bg2 c5 8.O-O Nc6 
9.Rb1 Ne8 10.Be3 Nd4 11.Ne2 e5 12.b4 d6 13.bxc5 dxc5 14.Nexd4 cxd4 15.Bd2 
Nc7 16.Ne1 Na6 17.a4 Bc6 18.a5 bxa5 19.Ra1 a4 20.f4 exf4 21.gxf4 Rb8 22.
Bc1 Rb3 23.Ba3 Nb4 24.Rf2 a5 25.e5 Bxg2 26.Rxg2 Qd7 27.Qe2 Qf5 28.Rg5 Qxf4
29.Bc1 Qh4 30.Kg2 a3 31.Nf3 Qh6 32.Rg3 Qh5 33.Rg5 Qh6 34.Rg3 Qh5 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.08"]
[Round "5"]
[White "Radulov, Ivan"]
[Black "Gligoric, Svetozar"]
[Result "1/2-1/2"]
[WhiteElo "2510"]
[BlackElo "2595"]
[ECO "C49"]
[EventDate "1973.06.02"]
[PlyCount "23"]

1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 5.O-O O-O 6.Nd5 Nxd5 7.exd5 Nd4 8.
Nxd4 exd4 9.a3 Be7 10.Be2 c5 11.c4 d6 12.b4 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.08"]
[Round "5"]
[White "Rukavina, Josip"]
[Black "Cuellar Gacharna, Miguel"]
[Result "1/2-1/2"]
[WhiteElo "2460"]
[BlackElo "2400"]
[ECO "A07"]
[EventDate "1973.06.02"]
[PlyCount "99"]

1.Nf3 Nf6 2.g3 d5 3.Bg2 g6 4.O-O Bg7 5.d3 O-O 6.Nbd2 Nc6 7.e4 e5 8.c3 Rb8 
9.Re1 b5 10.a3 a5 11.Qc2 Re8 12.b4 dxe4 13.dxe4 Nd7 14.Bf1 a4 15.Bb2 Qf6 
16.Rac1 Nd8 17.c4 c6 18.cxb5 cxb5 19.Qd3 Nc6 20.Qd5 Ne7 21.Qd3 Qa6 22.Rc2 
f6 23.Rec1 Nf8 24.Qe3 Ne6 25.Ne1 Bd7 26.Nd3 Qd6 27.Nf3 Nc6 28.Bg2 Red8 29.
Nc5 Ned4 30.Bxd4 Nxd4 31.Nxd4 exd4 32.Qd2 Be8 33.Bf1 Bf7 34.Bd3 Bf8 35.Qe2
Be8 36.f4 Bg7 37.h4 Qe7 38.Kh2 Rb6 39.Re1 Kh8 40.Qf2 Bf7 41.Rd2 Bg8 42.Bb1
g5 43.Red1 gxh4 44.gxh4 Bh6 45.Rxd4 Rxd4 46.Rxd4 Rd6 47.Nd3 Rc6 48.Nc5 Rd6
49.Nd3 Rc6 50.Nc5 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.08"]
[Round "5"]
[White "Smejkal, Jan"]
[Black "Uhlmann, Wolfgang"]
[Result "1-0"]
[WhiteElo "2570"]
[BlackElo "2550"]
[ECO "D82"]
[EventDate "1973.06.02"]
[PlyCount "81"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bf4 Bg7 5.e3 c5 6.dxc5 Qa5 7.Qa4+ Qxa4 8.Nxa4 
Na6 9.Nf3 Bd7 10.Nc3 dxc4 11.Bxc4 Nxc5 12.O-O O-O 13.Rfd1 Rac8 14.Be5 Bc6 
15.Nd4 Ncd7 16.Bg3 Bxg2 17.Ne6 Rfe8 18.Nc7 Bf3 19.Nxe8 Bxd1 20.Nxf6+ Nxf6 
21.Bd5 Bg4 22.Bxb7 Rd8 23.Be5 Ne8 24.Bxg7 Kxg7 25.b4 Nd6 26.Bg2 Rc8 27.Nd5
e6 28.Ne7 Rc7 29.Nc6 Nf5 30.b5 Nh4 31.Bh1 Be2 32.Nd4 Bd3 33.a4 e5 34.Nc6 
e4 35.Ne5 Bc2 36.Rc1 f5 37.f4 Rc5 38.Kf2 g5 39.Ke1 gxf4 40.exf4 Rxe5 41.
fxe5 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.08"]
[Round "5"]
[White "Taimanov, Mark"]
[Black "Karpov, Anatoly"]
[Result "1/2-1/2"]
[WhiteElo "2595"]
[BlackElo "2645"]
[ECO "E46"]
[EventDate "1973.06.02"]
[PlyCount "79"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Ne2 d5 6.a3 Be7 7.cxd5 Nxd5 8.Bd2 
Nxc3 9.Nxc3 c5 10.dxc5 Bxc5 11.Ne4 Be7 12.Bc3 Nc6 13.Bb5 a6 14.Bxc6 bxc6 
15.Qf3 Qc7 16.Rc1 Rb8 17.O-O f6 18.Qe2 Rd8 19.Rc2 Qb6 20.Rfc1 Qb5 21.Qe1 
f5 22.Nd2 Bb7 23.f3 Bf8 24.Qg3 Rbc8 25.Be5 Rd5 26.Nc4 Rcd8 27.h4 c5 28.Kh2
Rd1 29.Qf4 Rxc1 30.Rxc1 Bd5 31.Rc3 Rd7 32.b3 Bxc4 33.Qxc4 Qxc4 34.Rxc4 Rd3
35.Rc3 c4 36.Rxc4 Rxe3 37.f4 Rxb3 38.a4 Be7 39.Rc7 Bf6 40.Bxf6 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.08"]
[Round "5"]
[White "Torre, Eugenio"]
[Black "Byrne, Robert"]
[Result "0-1"]
[WhiteElo "2430"]
[BlackElo "2570"]
[ECO "A10"]
[EventDate "1973.06.02"]
[PlyCount "82"]

1.g3 f5 2.Bg2 Nf6 3.c4 e6 4.b3 Be7 5.Bb2 O-O 6.f4 d5 7.Nf3 c5 8.O-O b6 9.
e3 Bb7 10.Qe2 Nc6 11.Nc3 Qd7 12.Nd1 Rad8 13.Nf2 Ne4 14.d3 Nxf2 15.Kxf2 Bf6
16.Bxf6 Rxf6 17.cxd5 Qxd5 18.Ne5 Qd6 19.Bxc6 Bxc6 20.Rg1 Bb7 21.g4 Qc7 22.
Rg3 Rd5 23.Rag1 Rxe5 24.fxe5 Qxe5 25.gxf5 Rxf5+ 26.Ke1 Rf7 27.Qc2 g6 28.e4
Ba6 29.R1g2 Qa1+ 30.Ke2 Rf1 31.Qd2 Rb1 32.Qg5 Re1+ 33.Kf3 Qd1+ 34.Kf4 Rf1+
35.Ke5 Qa1+ 36.Kxe6 Bc8+ 37.Kd6 Rf6+ 38.Kc7 Be6 39.d4 Qxd4 40.Rd2 Rf7+ 41.
Kb8 Qxe4 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.08"]
[Round "5"]
[White "Tukmakov, Vladimir"]
[Black "Tal, Mikhail"]
[Result "0-1"]
[WhiteElo "2560"]
[BlackElo "2655"]
[ECO "B93"]
[EventDate "1973.06.02"]
[PlyCount "82"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 Qc7 7.Bd3 g6 8.Nf3 
Nbd7 9.O-O e5 10.Qe1 b5 11.Kh1 Bb7 12.fxe5 dxe5 13.Qh4 Be7 14.Qg3 Nh5 15.
Qf2 O-O 16.Bh6 Rfe8 17.Nd2 Ndf6 18.a4 b4 19.Ne2 Bf8 20.Bg5 Bg7 21.h3 Re6 
22.Rae1 Rae8 23.b3 h6 24.Be3 Nh7 25.g4 Rf6 26.Qh2 Rxf1+ 27.Rxf1 N5f6 28.
Ng3 Ng5 29.Qg2 Ne6 30.Qf2 Rf8 31.Kh2 Nd7 32.Bc4 Kh7 33.Nf3 Ndc5 34.Bd5 
Bxd5 35.exd5 Nd4 36.Nxd4 exd4 37.Bf4 Qd7 38.Qf3 a5 39.Re1 d3 40.cxd3 Nxb3 
41.d6 Nd4 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.09"]
[Round "6"]
[White "Byrne, Robert"]
[Black "Estevez Morales, Guillermo"]
[Result "1-0"]
[WhiteElo "2570"]
[BlackElo "2385"]
[ECO "B81"]
[EventDate "1973.06.02"]
[PlyCount "43"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g4 h6 7.h3 a6 8.Bg2 Bd7 
9.Be3 Nc6 10.Qe2 Rc8 11.f4 Nxd4 12.Bxd4 Qa5 13.e5 dxe5 14.Qxe5 Qb4 15.a3 
Qd6 16.Bxb7 Rb8 17.Bxa6 Bc6 18.O-O Qd8 19.Bb5 Bxb5 20.Nxb5 Rc8 21.Rac1 Be7
22.Na7 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.09"]
[Round "6"]
[White "Cuellar Gacharna, Miguel"]
[Black "Karpov, Anatoly"]
[Result "0-1"]
[WhiteElo "2400"]
[BlackElo "2645"]
[ECO "A31"]
[EventDate "1973.06.02"]
[PlyCount "111"]

1.d4 Nf6 2.Nf3 c5 3.c4 cxd4 4.Nxd4 Nc6 5.Nc3 Qb6 6.e3 e6 7.Be2 Be7 8.O-O 
O-O 9.b3 a6 10.Bb2 d6 11.Qd2 Bd7 12.Rad1 Rfd8 13.g4 Qa7 14.g5 Ne8 15.Nf3 
Rab8 16.e4 Bf8 17.Qf4 Ne7 18.Nh4 b5 19.Rd2 Bc6 20.Rfd1 Qa8 21.Bd3 Rd7 22.
Qg4 Nc7 23.Nd5 bxc4 24.Nxe7+ Bxe7 25.bxc4 g6 26.Bc3 a5 27.Bc2 Ne8 28.Nf3 
Rdd8 29.Nd4 Bd7 30.e5 Bf8 31.Ne2 d5 32.Rd3 Rbc8 33.cxd5 exd5 34.Qh4 Bf5 
35.e6 fxe6 36.Nd4 Ng7 37.Nxf5 Nxf5 38.Qa4 Bg7 39.Bxg7 Kxg7 40.Bb3 Rc5 41.
Re1 Qc6 42.Qf4 Qd6 43.Qd2 Kg8 44.f4 Ng7 45.Rd4 Qb6 46.Kh1 Rb5 47.Rc1 Rf8 
48.Rd3 Rb4 49.Rf3 Qd6 50.f5 Nxf5 51.a3 Rh4 52.Bd1 Qe5 53.Qf2 Re4 54.Kg2 
Nh4+ 55.Kh3 Nxf3 56.Bxf3 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.09"]
[Round "6"]
[White "Gligoric, Svetozar"]
[Black "Smejkal, Jan"]
[Result "0-1"]
[WhiteElo "2595"]
[BlackElo "2570"]
[ECO "D86"]
[EventDate "1973.06.02"]
[PlyCount "86"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 c5 8.Ne2 
Nc6 9.O-O O-O 10.Be3 Na5 11.Bd3 b6 12.Qd2 Bb7 13.Bh6 cxd4 14.cxd4 e6 15.
Rad1 Rc8 16.Bxg7 Kxg7 17.Rfe1 Qe7 18.Nf4 Rfd8 19.d5 exd5 20.e5 Nc4 21.Qe2 
Re8 22.e6 fxe6 23.Qg4 e5 24.Nxg6 hxg6 25.Bxg6 Rg8 26.Rd3 Rc6 27.Bh7+ Kxh7 
28.Rh3+ Rh6 29.Rxh6+ Kxh6 30.Qxg8 Qg7 31.Qe6+ Qg6 32.Qe7 Qg7 33.Qh4+ Kg6 
34.f4 e4 35.g4 Qd4+ 36.Kh1 e3 37.f5+ Kf7 38.Qh7+ Kf8 39.Qh6+ Qg7 40.Qh4 
d4+ 41.Kg1 Ne5 42.Qd8+ Kf7 43.Qc7+ Kf6 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.09"]
[Round "6"]
[White "Kuzmin, Gennady"]
[Black "Taimanov, Mark"]
[Result "1/2-1/2"]
[WhiteElo "2565"]
[BlackElo "2595"]
[ECO "D16"]
[EventDate "1973.06.02"]
[PlyCount "67"]

1.Nf3 Nf6 2.c4 c6 3.Nc3 d5 4.d4 dxc4 5.a4 Bg4 6.Ne5 Bh5 7.f3 Nfd7 8.Nxc4 
e5 9.g3 Bb4 10.dxe5 O-O 11.Qd4 Na6 12.Bf4 Ndc5 13.Qxd8 Raxd8 14.Nd2 Rfe8 
15.O-O-O Nc7 16.Bg5 Ra8 17.e4 Rxe5 18.Bf4 Re7 19.g4 Bg6 20.Ndb1 Nd5 21.
Rxd5 cxd5 22.Nxd5 Nb3+ 23.Kc2 Nd4+ 24.Kd3 Nxf3 25.Nxe7+ Bxe7 26.Nc3 Rd8+ 
27.Ke3 Ng5 28.b4 Ne6 29.Nd5 Bh4 30.Bc4 Rc8 31.Rc1 Nxf4 32.Nxf4 Kf8 33.Kd4 
Bg5 34.Nxg6+ 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.09"]
[Round "6"]
[White "Larsen, Bent"]
[Black "Hubner, Robert"]
[Result "1-0"]
[WhiteElo "2620"]
[BlackElo "2600"]
[ECO "E90"]
[EventDate "1973.06.02"]
[PlyCount "97"]

1.Nf3 g6 2.c4 Bg7 3.d4 Nf6 4.Nc3 O-O 5.e4 d6 6.Be3 e5 7.dxe5 dxe5 8.Qxd8 
Rxd8 9.Nd5 Nxd5 10.cxd5 c6 11.Bc4 cxd5 12.Bxd5 Nc6 13.Bxc6 bxc6 14.O-O f5 
15.Rfc1 a5 16.Rc5 a4 17.Rac1 Rb8 18.Nxe5 Bxe5 19.Rxe5 Rxb2 20.h4 Rb4 21.
Bg5 Rf8 22.Bh6 Rd8 23.Re7 Rxe4 24.Rg7+ Kh8 25.Ra7 Kg8 26.f3 Re6 27.Rc4 Rd7
28.Rcxa4 Kf7 29.Rxd7+ Bxd7 30.Ra7 Rd6 31.Ra8 Ke6 32.Rh8 c5 33.Rxh7 Bb5 34.
Ra7 Ra6 35.Rxa6+ Bxa6 36.Kf2 Bb5 37.Ke3 Ke5 38.Bg7+ Ke6 39.Bf8 Kd5 40.Kf4 
c4 41.Bg7 Ke6 42.Bc3 Bd7 43.Kg5 Kf7 44.a3 Bc8 45.a4 Bd7 46.a5 Bc8 47.Bb2 
Ba6 48.h5 gxh5 49.Kxf5 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.09"]
[Round "6"]
[White "Quinteros, Miguel Angel"]
[Black "Tukmakov, Vladimir"]
[Result "1-0"]
[WhiteElo "2480"]
[BlackElo "2560"]
[ECO "E63"]
[EventDate "1973.06.02"]
[PlyCount "83"]

1.Nf3 Nf6 2.c4 g6 3.g3 Bg7 4.d4 O-O 5.Bg2 d6 6.Nc3 Nc6 7.O-O a6 8.h3 Rb8 
9.e4 b5 10.cxb5 axb5 11.Be3 b4 12.Ne2 e5 13.dxe5 dxe5 14.Qc2 Bb7 15.Rfd1 
Qc8 16.Nd2 Re8 17.Nb3 Ba8 18.Nc5 Bf8 19.Nc1 Bd6 20.N1b3 Nd7 21.Rd2 Nxc5 
22.Nxc5 Nd8 23.Bf1 Bc6 24.Kh2 Ra8 25.Bc4 Nb7 26.Nb3 Bd7 27.h4 Be6 28.Bxe6 
Qxe6 29.Qc6 Na5 30.Nxa5 Rxa5 31.a4 bxa3 32.bxa3 Rea8 33.a4 R5a6 34.Qb7 Kg7
35.Rd5 Rxa4 36.Qxa8 Rxa8 37.Rxa8 Qg4 38.Ra4 f5 39.Ra7 Kf6 40.Rxd6+ cxd6 
41.Bg5+ Ke6 42.Re7# 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.09"]
[Round "6"]
[White "Rukavina, Josip"]
[Black "Radulov, Ivan"]
[Result "1/2-1/2"]
[WhiteElo "2460"]
[BlackElo "2510"]
[ECO "A33"]
[EventDate "1973.06.02"]
[PlyCount "83"]

1.Nf3 c5 2.c4 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g3 Be7 7.Bg2 O-O 8.O-O 
a6 9.b3 Qc7 10.Bb2 b6 11.Rc1 Bb7 12.Nd5 Qd8 13.Nxe7+ Qxe7 14.e4 Rfd8 15.
Qd2 d6 16.Rfe1 Nxd4 17.Bxd4 Nd7 18.b4 Rdc8 19.f4 e5 20.Bf2 b5 21.c5 dxc5 
22.bxc5 Nb8 23.Qd6 Re8 24.Qb6 Nc6 25.Rcd1 Rab8 26.Rd6 Nd4 27.Bxd4 exd4 28.
Rxd4 f5 29.Qd6 Bxe4 30.Bxe4 fxe4 31.Rexe4 Qxd6 32.Rxe8+ Rxe8 33.Rxd6 Rc8 
34.Rxa6 Rxc5 35.Kg2 b4 36.Kf3 h5 37.Kg2 Rc2+ 38.Kh3 Kh7 39.Rb6 Rb2 40.Ra6 
Rf2 41.Ra4 Rb2 42.a3 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.09"]
[Round "6"]
[White "Tal, Mikhail"]
[Black "Korchnoi, Viktor"]
[Result "0-1"]
[WhiteElo "2655"]
[BlackElo "2635"]
[ECO "A30"]
[EventDate "1973.06.02"]
[PlyCount "112"]

1.Nf3 Nf6 2.c4 b6 3.g3 c5 4.Bg2 Bb7 5.O-O g6 6.b3 Bg7 7.Bb2 O-O 8.Nc3 Ne4 
9.Na4 Bxb2 10.Nxb2 d5 11.cxd5 Bxd5 12.Qc1 Nc6 13.d3 Nd6 14.e3 e5 15.Nc4 f6
16.Rd1 Nf7 17.Qc3 Qd7 18.a3 Rac8 19.Qb2 Rfd8 20.Rac1 Qe7 21.Rb1 Rc7 22.
Ncd2 Be6 23.Bf1 Bf5 24.Ne4 Bg4 25.Ned2 Ng5 26.Be2 Rcd7 27.Re1 Nxf3+ 28.
Nxf3 Bf5 29.b4 Bxd3 30.Bxd3 Rxd3 31.Rec1 e4 32.Ne1 R3d5 33.bxc5 bxc5 34.
Qb7 Qxb7 35.Rxb7 Ne5 36.Kf1 R8d7 37.Rxd7 Nxd7 38.Ke2 Kf7 39.f3 exf3+ 40.
Nxf3 Ke6 41.Nd2 Ne5 42.Nc4 f5 43.Rc2 Kd7 44.Nd2 Kc6 45.h3 Nf7 46.Rc4 Re5 
47.Rh4 Ng5 48.Ra4 Re7 49.g4 Ne4 50.Nxe4 fxe4 51.Ra6+ Kb5 52.Rd6 a5 53.Kd2 
Kc4 54.Ra6 Rd7+ 55.Ke2 Kb3 56.Rxa5 c4 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.09"]
[Round "6"]
[White "Uhlmann, Wolfgang"]
[Black "Torre, Eugenio"]
[Result "1/2-1/2"]
[WhiteElo "2550"]
[BlackElo "2430"]
[ECO "A37"]
[EventDate "1973.06.02"]
[PlyCount "83"]

1.c4 c5 2.Nf3 Nc6 3.Nc3 e5 4.g3 g6 5.d3 d6 6.a3 Bg7 7.Rb1 a5 8.Bg2 Nge7 9.
O-O O-O 10.Ne1 Be6 11.Nc2 d5 12.cxd5 Nxd5 13.Ne4 b6 14.Ng5 Bc8 15.Ne3 Nde7
16.Bd2 Rb8 17.Nc2 h6 18.Ne4 Be6 19.b4 f5 20.Nc3 axb4 21.axb4 c4 22.dxc4 
Bxc4 23.Re1 Rc8 24.Na3 Be6 25.Nab5 Qd7 26.Na4 Rcd8 27.Bc3 Qxd1 28.Rexd1 
Rxd1+ 29.Rxd1 Bc4 30.Nc7 Bb3 31.Ra1 Rc8 32.Nb5 e4 33.Nxb6 Rb8 34.Ra8 Rxa8 
35.Nxa8 Bxc3 36.Nxc3 Nxb4 37.Nc7 Kf7 38.g4 Nbd5 39.N7xd5 Nxd5 40.Nb5 Kf6 
41.gxf5 gxf5 42.e3 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.12"]
[Round "7"]
[White "Estevez Morales, Guillermo"]
[Black "Uhlmann, Wolfgang"]
[Result "1/2-1/2"]
[WhiteElo "2385"]
[BlackElo "2550"]
[ECO "A38"]
[EventDate "1973.06.02"]
[PlyCount "67"]

1.Nf3 Nf6 2.c4 g6 3.Nc3 Bg7 4.g3 d5 5.cxd5 Nxd5 6.Bg2 O-O 7.O-O c5 8.Nxd5 
Qxd5 9.d3 Nc6 10.Qa4 Qh5 11.Be3 Bd7 12.Rac1 b6 13.b4 Ne5 14.Qd1 cxb4 15.
Nxe5 Bxe5 16.Bxa8 Rxa8 17.d4 Bd6 18.Qd2 Qd5 19.f3 a5 20.Bf2 f5 21.Rfe1 b3 
22.e4 Qf7 23.axb3 Bb4 24.Qf4 Bxe1 25.Rxe1 fxe4 26.Qxe4 Rf8 27.d5 Qxf3 28.
Qxf3 Rxf3 29.Bxb6 Rxb3 30.Bxa5 Bh3 31.Rxe7 Rf3 32.Re1 Rd3 33.Re5 Rf3 34.
Re1 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.12"]
[Round "7"]
[White "Hubner, Robert"]
[Black "Byrne, Robert"]
[Result "1/2-1/2"]
[WhiteElo "2600"]
[BlackElo "2570"]
[ECO "A36"]
[EventDate "1973.06.02"]
[PlyCount "52"]

1.c4 g6 2.g3 Bg7 3.Bg2 c5 4.Nc3 Nc6 5.e3 e6 6.Nge2 Nge7 7.O-O O-O 8.a3 d6 
9.Rb1 b6 10.d4 cxd4 11.Nxd4 Qd7 12.Nxc6 Nxc6 13.Ne4 Rd8 14.b4 d5 15.cxd5 
exd5 16.Nd2 Qd6 17.Rb3 Be6 18.Bb2 Rac8 19.Bxg7 Kxg7 20.Qa1+ Qe5 21.Rb2 Qf6
22.Nb3 d4 23.b5 Bxb3 24.Rxb3 Na5 25.Rd3 dxe3 26.Rxe3 Qxa1 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.12"]
[Round "7"]
[White "Karpov, Anatoly"]
[Black "Kuzmin, Gennady"]
[Result "1-0"]
[WhiteElo "2645"]
[BlackElo "2565"]
[ECO "C09"]
[EventDate "1973.06.02"]
[PlyCount "77"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 exd5 5.Ngf3 Nc6 6.Bb5 Bd6 7.dxc5 Bxc5 8.
O-O Ne7 9.Nb3 Bd6 10.Bg5 O-O 11.Bh4 Qc7 12.Bg3 Bxg3 13.hxg3 Bg4 14.Re1 
Rad8 15.c3 Qb6 16.Bd3 Ng6 17.Qc2 Bxf3 18.gxf3 Rd6 19.f4 Rfd8 20.a3 h5 21.
Kg2 h4 22.Re2 Nf8 23.Nd2 Rh6 24.Nf3 hxg3 25.fxg3 Nd7 26.Rae1 Kf8 27.g4 Qc7
28.g5 Rh8 29.Kg3 Nc5 30.Bf5 g6 31.b4 Ne4+ 32.Bxe4 dxe4 33.Qxe4 Kg7 34.b5 
Na5 35.Qe7 Qxe7 36.Rxe7 Rd3 37.Rc7 Nb3 38.Kg4 Rf8 39.Ree7 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.12"]
[Round "7"]
[White "Korchnoi, Viktor"]
[Black "Quinteros, Miguel Angel"]
[Result "1-0"]
[WhiteElo "2635"]
[BlackElo "2480"]
[ECO "A58"]
[EventDate "1973.06.02"]
[PlyCount "53"]

1.d4 Nf6 2.c4 c5 3.d5 d6 4.g3 g6 5.Bg2 Bg7 6.Nf3 b5 7.cxb5 a6 8.bxa6 O-O 
9.Nc3 Bxa6 10.O-O Nbd7 11.Qc2 Qb6 12.Rb1 Rfb8 13.b3 Ne8 14.Nd2 Qa5 15.Bb2 
c4 16.Rfc1 Ne5 17.Ba1 Rb4 18.bxc4 Nxc4 19.Rxb4 Qxb4 20.Nxc4 Bxc4 21.Bh3 
Nc7 22.e4 Bd4 23.Bd7 Na6 24.Bc6 Ra7 25.Rb1 Qa5 26.Nb5 Bxa1 27.Qxc4 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.12"]
[Round "7"]
[White "Radulov, Ivan"]
[Black "Cuellar Gacharna, Miguel"]
[Result "1-0"]
[WhiteElo "2510"]
[BlackElo "2400"]
[ECO "B52"]
[EventDate "1973.06.02"]
[PlyCount "53"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.c4 Nc6 6.d4 cxd4 7.Nxd4 g6 8.
O-O Bg7 9.Be3 Nf6 10.f3 O-O 11.Nc3 Ne8 12.Qd2 Nc7 13.Nde2 Rfd8 14.Rac1 Ne5
15.b3 b5 16.cxb5 Nxb5 17.Nxb5 Qxb5 18.Rc7 Rd7 19.Nd4 Qa6 20.Rfc1 Rxc7 21.
Rxc7 Rc8 22.Qe2 Nxf3+ 23.Nxf3 Qxe2 24.Rxc8+ Bf8 25.Bh6 Qd1+ 26.Kf2 Qc2+ 
27.Rxc2 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.12"]
[Round "7"]
[White "Smejkal, Jan"]
[Black "Rukavina, Josip"]
[Result "1-0"]
[WhiteElo "2570"]
[BlackElo "2460"]
[ECO "C41"]
[EventDate "1973.06.02"]
[PlyCount "93"]

1.e4 e5 2.Nf3 d6 3.d4 Nf6 4.Nc3 Nbd7 5.Bc4 Be7 6.O-O O-O 7.a4 c6 8.Qe2 Qc7
9.h3 h6 10.Ba2 a5 11.Be3 Re8 12.Qc4 Rf8 13.Rfd1 b6 14.dxe5 dxe5 15.Nb5 Qb7
16.Nd6 Bxd6 17.Rxd6 c5 18.Rad1 Ra7 19.Nd2 Ne8 20.Rd3 Qc6 21.Qb5 Qg6 22.Nc4
Ba6 23.Qb3 Bxc4 24.Qxc4 Ndf6 25.f3 Nh5 26.Rd7 Rxd7 27.Rxd7 Qg3 28.Qe2 Nf4 
29.Bxf4 Qxf4 30.Qd2 Qxd2 31.Rxd2 Nf6 32.f4 exf4 33.e5 Ne4 34.Rd7 Ng5 35.
Rb7 Rd8 36.h4 Ne6 37.Rxb6 Rd2 38.c3 g5 39.Bxe6 fxe6 40.Rxe6 Kg7 41.h5 Rxb2
42.Rg6+ Kh7 43.Rc6 Re2 44.Rxc5 g4 45.Kf1 Re4 46.Rxa5 Rc4 47.Ra7+ 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.12"]
[Round "7"]
[White "Taimanov, Mark"]
[Black "Tal, Mikhail"]
[Result "1/2-1/2"]
[WhiteElo "2595"]
[BlackElo "2655"]
[ECO "A36"]
[EventDate "1973.06.02"]
[PlyCount "23"]

1.Nf3 c5 2.c4 g6 3.g3 Bg7 4.Bg2 Nc6 5.O-O e6 6.Nc3 Nge7 7.e3 O-O 8.d4 cxd4
9.Nxd4 d5 10.cxd5 Nxd4 11.exd4 Nxd5 12.Nxd5 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.12"]
[Round "7"]
[White "Torre, Eugenio"]
[Black "Gligoric, Svetozar"]
[Result "0-1"]
[WhiteElo "2430"]
[BlackElo "2595"]
[ECO "C44"]
[EventDate "1973.06.02"]
[PlyCount "74"]

1.e4 e5 2.Nf3 Nc6 3.Be2 Nf6 4.d3 g6 5.c3 Bg7 6.Nbd2 O-O 7.O-O d6 8.d4 exd4
9.cxd4 Re8 10.d5 Nb8 11.Re1 Nbd7 12.Bb5 a6 13.Ba4 b5 14.Bc2 Bb7 15.a4 c6 
16.dxc6 Bxc6 17.Nd4 Qb6 18.Nxc6 Qxc6 19.axb5 axb5 20.Rxa8 Rxa8 21.Nb3 Ne5 
22.h3 Nfd7 23.Bd3 Nxd3 24.Qxd3 Ne5 25.Qd5 Qxd5 26.exd5 Nd3 27.Re7 Nxc1 28.
Nxc1 Bxb2 29.Nd3 Bd4 30.Kf1 Ra2 31.Ke1 Bc3+ 32.Kf1 Rd2 33.Re3 b4 34.Nf4 
Be5 35.Nd3 b3 36.Nxe5 b2 37.Re1 dxe5 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.12"]
[Round "7"]
[White "Tukmakov, Vladimir"]
[Black "Larsen, Bent"]
[Result "1/2-1/2"]
[WhiteElo "2560"]
[BlackElo "2620"]
[ECO "C75"]
[EventDate "1973.06.02"]
[PlyCount "131"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nge7 4.c3 a6 5.Ba4 d6 6.d4 Bd7 7.Bb3 h6 8.Nh4 exd4
9.cxd4 Nxd4 10.Qxd4 Nc6 11.Qd5 Qxh4 12.Qxf7+ Kd8 13.Nc3 Ne5 14.Qd5 Bc6 15.
Qd4 Be7 16.Nd5 Qg4 17.Be3 Rf8 18.h3 Qxg2 19.O-O-O Nf3 20.Qd3 Qg6 21.Kb1 
Bg5 22.Bc2 Bxe3 23.Qxe3 Qg5 24.Qc3 Qe5 25.Qxe5 Nxe5 26.f4 Nc4 27.Rhg1 Rf7 
28.Rg6 Ke8 29.e5 Bxd5 30.Rxd5 Ne3 31.Ba4+ Kf8 32.Rd3 Nf5 33.Bb3 Re7 34.
exd6 Nxd6 35.f5 Re1+ 36.Kc2 Rf1 37.f6 Rf2+ 38.Kc1 Rxf6 39.Rxf6+ gxf6 40.
Rg3 Nf7 41.Rg6 Ke7 42.Kd2 c5 43.Rg7 Rf8 44.Ke3 f5 45.Rg6 f4+ 46.Kf2 Ng5 
47.Rxh6 Rf6 48.Rxf6 Kxf6 49.h4 Ne4+ 50.Kf3 Ke5 51.Bc2 Nd2+ 52.Kg4 b5 53.h5
f3 54.Kg3 Kf6 55.h6 Nc4 56.b3 Nd2 57.Kf2 c4 58.bxc4 bxc4 59.Ke3 c3 60.Bd3 
a5 61.a4 Kf7 62.Kd4 f2 63.Kxc3 f1=Q 64.Bxf1 Nxf1 65.Kc4 Nd2+ 66.Kb5 
1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.13"]
[Round "8"]
[White "Byrne, Robert"]
[Black "Tukmakov, Vladimir"]
[Result "1-0"]
[WhiteElo "2570"]
[BlackElo "2560"]
[ECO "C95"]
[EventDate "1973.06.02"]
[PlyCount "81"]

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.b4 Bf8 14.Bb2 Nb6 15.a3 Nfd7
16.Rc1 g6 17.Bb1 Bh6 18.Rc2 a5 19.c4 axb4 20.axb4 exd4 21.Bxd4 bxc4 22.Ba2
Ra4 23.Qb1 Qa8 24.Nxc4 Rxe4 25.Ne3 c5 26.bxc5 dxc5 27.Bc3 Nd5 28.Nxd5 Bxd5
29.Bxd5 Qxd5 30.Rd1 Qe6 31.Rb2 Ra8 32.Rxd7 Re8 33.Rd1 Bf4 34.Rb6 Qc4 35.
Qb3 Qe2 36.Rb7 c4 37.Qb1 Be3 38.Rf1 Bc5 39.Rb8 h6 40.Rxe8+ Rxe8 41.Qb5 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.13"]
[Round "8"]
[White "Cuellar Gacharna, Miguel"]
[Black "Kuzmin, Gennady"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2565"]
[ECO "A22"]
[EventDate "1973.06.02"]
[PlyCount "57"]

1.c4 e5 2.Nc3 Nf6 3.g3 Bb4 4.Qc2 O-O 5.a3 Bxc3 6.Qxc3 d5 7.Bg2 d4 8.Qc2 a5
9.d3 Re8 10.Nf3 c5 11.O-O Nc6 12.Bd2 h6 13.b4 axb4 14.axb4 Rxa1 15.Rxa1 
cxb4 16.Ra8 Qe7 17.Ne1 Bf5 18.Rxe8+ Nxe8 19.Qb1 Nf6 20.Bxc6 bxc6 21.Qxb4 
Qe6 22.f3 Bg6 23.Qb8+ Kh7 24.Bb4 Qf5 25.Bd2 Qe6 26.Bb4 Qf5 27.Bd2 Qe6 28.
Ng2 Nd7 29.Qa7 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.13"]
[Round "8"]
[White "Gligoric, Svetozar"]
[Black "Estevez Morales, Guillermo"]
[Result "1-0"]
[WhiteElo "2595"]
[BlackElo "2385"]
[ECO "E46"]
[EventDate "1973.06.02"]
[PlyCount "73"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Ne2 d5 6.a3 Be7 7.cxd5 exd5 8.g3 c6 
9.Bg2 Bf5 10.O-O Qc8 11.Re1 Bd6 12.b4 Nbd7 13.f3 Re8 14.g4 Bg6 15.Nf4 Qc7 
16.h3 b5 17.Nxg6 hxg6 18.e4 Bg3 19.Rf1 g5 20.Bxg5 Bf4 21.Bxf4 Qxf4 22.Qd3 
Nb6 23.e5 Nc4 24.Ne2 Qd2 25.Qxd2 Nxd2 26.Rfe1 Nd7 27.a4 a6 28.a5 Nf8 29.f4
Ne6 30.Ra2 Nc4 31.f5 Nc7 32.Nf4 Kf8 33.Rae2 Ke7 34.h4 Kd7 35.Kf2 f6 36.g5 
Rf8 37.exf6 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.13"]
[Round "8"]
[White "Larsen, Bent"]
[Black "Korchnoi, Viktor"]
[Result "0-1"]
[WhiteElo "2620"]
[BlackElo "2635"]
[ECO "A20"]
[EventDate "1973.06.02"]
[PlyCount "86"]

1.c4 e5 2.g3 c6 3.Nf3 e4 4.Nd4 d5 5.cxd5 Qxd5 6.Nb3 Nf6 7.Bg2 Qh5 8.h3 Qg6
9.Nc3 Nbd7 10.Qc2 e3 11.Qxg6 exf2+ 12.Kxf2 hxg6 13.d4 Nb6 14.e4 Be6 15.Bf4
Bb4 16.Nc5 O-O-O 17.Nxe6 fxe6 18.a3 Be7 19.Rad1 Rhf8 20.Ke2 Nc4 21.h4 Nh5 
22.Bh3 Rxf4 23.Bxe6+ Kc7 24.Bxc4 Nxg3+ 25.Ke3 Rdf8 26.Rhg1 Bxh4 27.Kd3 Rf2
28.Rd2 Bg5 29.Rxf2 Rxf2 30.Ne2 Rf3+ 31.Kc2 Nxe4 32.Bd3 Re3 33.Nc3 Ng3 34.
d5 Bf6 35.Nd1 Rf3 36.dxc6 Kxc6 37.Bxg6 Kd6 38.Re1 Nf5 39.Re8 Nd4+ 40.Kd2 
Bg5+ 41.Ke1 Bh4+ 42.Kd2 Rg3 43.Be4 Bg5+ 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.13"]
[Round "8"]
[White "Quinteros, Miguel Angel"]
[Black "Taimanov, Mark"]
[Result "1/2-1/2"]
[WhiteElo "2480"]
[BlackElo "2595"]
[ECO "A07"]
[EventDate "1973.06.02"]
[PlyCount "80"]

1.Nf3 d5 2.g3 c6 3.Bg2 Nf6 4.d3 Bg4 5.h3 Bh5 6.b3 e6 7.Bb2 Qa5+ 8.Qd2 
Qxd2+ 9.Nbxd2 a5 10.a3 Nbd7 11.Nd4 e5 12.Nf5 Bg6 13.Nh4 Bd6 14.e3 O-O 15.
Nxg6 hxg6 16.c4 Rfe8 17.cxd5 Nxd5 18.Ke2 Bf8 19.Rhc1 Nc7 20.Nc4 Nb5 21.a4 
Nd6 22.Bc3 Nxc4 23.bxc4 Nc5 24.Rd1 f6 25.Kf1 f5 26.d4 exd4 27.exd4 Ne4 28.
Bxe4 Rxe4 29.Rab1 Re7 30.Rd2 Rd7 31.d5 cxd5 32.Rxd5 Rc7 33.Be5 Rxc4 34.
Rxb7 Rxa4 35.Rdd7 Rb4 36.Rbc7 Rbb8 37.Bxg7 Rc8 38.Rb7 Rcb8 39.Rbc7 Rc8 40.
Rb7 Rcb8 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.13"]
[Round "8"]
[White "Radulov, Ivan"]
[Black "Smejkal, Jan"]
[Result "0-1"]
[WhiteElo "2510"]
[BlackElo "2570"]
[ECO "B52"]
[EventDate "1973.06.02"]
[PlyCount "112"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.c4 e5 6.Nc3 Nc6 7.O-O Nge7 8.
Nd5 Nxd5 9.cxd5 Nb4 10.d3 Be7 11.Ne1 O-O 12.Bd2 f5 13.a3 Na6 14.Nc2 fxe4 
15.dxe4 c4 16.Ne3 Nc5 17.Nxc4 Nxe4 18.Rc1 Qb5 19.Bb4 a5 20.Qg4 axb4 21.
Qxe4 Rf4 22.Qc2 Rc8 23.Nxd6 Rxc2 24.Nxb5 Rfxf2 25.Rxc2 Rxc2 26.d6 Bd8 27.
axb4 Bb6+ 28.Kh1 e4 29.Nc3 e3 30.Rd1 Rxb2 31.g3 Rd2 32.Rxd2 exd2 33.Kg2 
Kf7 34.Kf3 Bd4 35.Nd1 Ke6 36.Ke2 Kxd6 37.Kxd2 Kd5 38.b5 Kc4 39.b6 Bxb6 40.
Nb2+ Kd4 41.Nd3 Ba5+ 42.Ke2 Bc7 43.Ne1 b5 44.Nf3+ Kc3 45.Kd1 Kd3 46.Ng5 h6
47.Ne6 Be5 48.g4 g5 49.h3 Ke3 50.Nd8 Kf3 51.Nf7 Bg7 52.Nd6 b4 53.Nf5 Bf8 
54.Kc2 Kg2 55.h4 Kf3 56.Nxh6 gxh4 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.13"]
[Round "8"]
[White "Rukavina, Josip"]
[Black "Torre, Eugenio"]
[Result "1/2-1/2"]
[WhiteElo "2460"]
[BlackElo "2430"]
[ECO "E61"]
[EventDate "1973.06.02"]
[PlyCount "175"]

1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.Nc3 d6 5.Bf4 c6 6.e3 Qa5 7.Nd2 Nh5 8.Nb3 Qf5 
9.Bd3 Qg4 10.Qxg4 Bxg4 11.Bg5 h6 12.Bh4 g5 13.Bg3 Nxg3 14.hxg3 Na6 15.a3 
Bd7 16.Rc1 Nc7 17.Be2 b6 18.g4 c5 19.O-O O-O 20.Rfd1 Be6 21.Na1 Rfc8 22.
Nc2 Ne8 23.b3 Nf6 24.f3 a6 25.a4 Ne8 26.Na3 Nc7 27.Rb1 cxd4 28.exd4 d5 29.
a5 bxa5 30.Na4 Rd8 31.c5 Bd7 32.Nb6 Ra7 33.Ra1 Bb5 34.Bxb5 axb5 35.Nc2 Ra6
36.Kf2 e5 37.b4 axb4 38.Nxb4 Rxa1 39.Rxa1 exd4 40.Ra7 Ne6 41.Nd3 Bf8 42.c6
Bd6 43.Nxd5 Kg7 44.Rd7 Rxd7 45.cxd7 f6 46.Nc1 Nd8 47.Ke2 Kf7 48.Kd3 Nc6 
49.Nb3 Ne5+ 50.Ke4 Nxd7 51.Nxd4 b4 52.Kd3 Ne5+ 53.Kc2 Ng6 54.g3 Bc5 55.Nb3
Bf8 56.Kd3 Ne5+ 57.Ke4 Nd7 58.Kd4 Ke6 59.Ne3 Kd6 60.Na5 Ke6 61.Nb3 Bd6 62.
Nf5 Ne5 63.Ke4 Nf7 64.Nbd4+ Kd7 65.Kd5 Bf8 66.Nb3 Ne5 67.Nfd4 Ng6 68.Ke4 
Ke8 69.Kd5 Kf7 70.Nd2 Ne5 71.N2b3 Kg6 72.Ke6 Nd3 73.Kd5 h5 74.gxh5+ Kxh5 
75.Ne6 Be7 76.Ke4 Ne5 77.Nbd4 Nc4 78.Kd3 Ne5+ 79.Ke4 Nf7 80.g4+ Kg6 81.Nb3
Nd6+ 82.Kd5 f5 83.Ned4 fxg4 84.fxg4 Nf7 85.Nc6 Bf8 86.Ke6 Nh6 87.Ne5+ Kh7 
88.Nf3 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.13"]
[Round "8"]
[White "Tal, Mikhail"]
[Black "Karpov, Anatoly"]
[Result "1/2-1/2"]
[WhiteElo "2655"]
[BlackElo "2645"]
[ECO "C95"]
[EventDate "1973.06.02"]
[PlyCount "94"]

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.b4 Bf8 14.Bb2 a5 15.Bd3 c6 
16.a3 Nb6 17.Rc1 exd4 18.Nxd4 Nfd7 19.N2b3 Ne5 20.Nxa5 Rxa5 21.bxa5 Nbc4 
22.Rc2 Qxa5 23.Bf1 Nxb2 24.Rxb2 Qxc3 25.Rb3 Qa5 26.Qb1 Qa7 27.Rd1 Nd7 28.
Nf5 Re6 29.Nd4 Re8 30.Bxb5 cxb5 31.Nxb5 Qc5 32.Nxd6 Bxd6 33.Rxb7 Nf6 34.
Qb3 Bc7 35.Qb5 Qc2 36.Qb1 Qxb1 37.Rdxb1 Bd6 38.a4 Rxe4 39.Rd1 Ne8 40.a5 
Kf8 41.a6 Ra4 42.Ra7 g5 43.Ra8 Be5 44.g3 Ke7 45.Re1 f6 46.a7 Nc7 47.Rh8 
Rxa7 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.13"]
[Round "8"]
[White "Uhlmann, Wolfgang"]
[Black "Hubner, Robert"]
[Result "1/2-1/2"]
[WhiteElo "2550"]
[BlackElo "2600"]
[ECO "A17"]
[EventDate "1973.06.02"]
[PlyCount "148"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 Bb4 4.Qc2 c5 5.g3 Nc6 6.Bg2 O-O 7.O-O Qe7 8.d3 Ba5
9.Nh4 Rd8 10.e4 d6 11.f4 a6 12.e5 Ng4 13.Qe2 Nh6 14.Bxc6 bxc6 15.Ne4 d5 
16.Nd6 Bc7 17.Nxc8 Raxc8 18.Be3 Rd7 19.Qh5 f6 20.exf6 Qxf6 21.b3 Bd6 22.
Nf3 Nf7 23.Rae1 Re8 24.d4 cxd4 25.Bxd4 Qd8 26.c5 Bf8 27.Re2 Rb7 28.Rfe1 
Qa5 29.f5 e5 30.Nxe5 Nxe5 31.Bxe5 Qxc5+ 32.Kg2 Rf7 33.Qg4 d4 34.Bxd4 Rxe2+
35.Rxe2 Qd5+ 36.Qe4 Rxf5 37.Qxd5+ Rxd5 38.Bf2 Bb4 39.Kf3 Kf7 40.Rc2 c5 41.
Ke4 Ke6 42.Be3 h5 43.Rc4 g6 44.h3 Re5+ 45.Kd3 Rd5+ 46.Ke2 Re5 47.g4 Kd5 
48.Kd3 Re6 49.Bc1 Be1 50.Be3 Bb4 51.gxh5 gxh5 52.Rf4 Rg6 53.Rf5+ Kc6 54.
Kc4 Rg2 55.Bxc5 Bxc5 56.Rxc5+ Kb6 57.Rxh5 Rxa2 58.Rh6+ Kb7 59.h4 Rh2 60.b4
Rh1 61.h5 Rc1+ 62.Kd5 Rb1 63.Rh7+ Kb6 64.Rh8 Kb7 65.Kc4 Rc1+ 66.Kd3 Rb1 
67.Kc3 Rc1+ 68.Kb2 Rc4 69.Kb3 Rh4 70.Kc3 Ka7 71.Rh6 Kb7 72.Rh7+ Kb6 73.h6 
Kb5 74.Rh8 Rh3+ 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.14"]
[Round "9"]
[White "Estevez Morales, Guillermo"]
[Black "Rukavina, Josip"]
[Result "0-1"]
[WhiteElo "2385"]
[BlackElo "2460"]
[ECO "B08"]
[EventDate "1973.06.02"]
[PlyCount "70"]

1.e4 g6 2.d4 d6 3.Nc3 Bg7 4.Nf3 c6 5.Be2 Nd7 6.a4 Qc7 7.O-O Ngf6 8.h3 O-O 
9.Be3 e5 10.dxe5 dxe5 11.Bc4 Re8 12.Qd2 Nb6 13.Bb3 Be6 14.Bh6 Bxb3 15.Bxg7
Kxg7 16.cxb3 a5 17.Rac1 Qe7 18.Qe3 Ra6 19.Ne2 Nfd7 20.Rfd1 Nf8 21.h4 h5 
22.Qd3 Nbd7 23.Qe3 Rb6 24.Ng3 Rb4 25.Rc3 Ne6 26.Qa7 c5 27.Qxa5 Nb6 28.Ng5 
Nxg5 29.hxg5 c4 30.bxc4 Ra8 31.Rd7 Nxd7 32.Qxa8 Nc5 33.b3 Nxb3 34.Qc8 Nd4 
35.Rc1 h4 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.14"]
[Round "9"]
[White "Hubner, Robert"]
[Black "Gligoric, Svetozar"]
[Result "1-0"]
[WhiteElo "2600"]
[BlackElo "2595"]
[ECO "E81"]
[EventDate "1973.06.02"]
[PlyCount "81"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c6 7.Bd3 e5 8.Nge2 exd4 
9.Bxd4 d5 10.cxd5 cxd5 11.e5 Nfd7 12.f4 Nc6 13.Bf2 Nb6 14.O-O f6 15.Bh4 
Ne7 16.exf6 Bxf6 17.Bxf6 Rxf6 18.Nd4 Qf8 19.Qf3 Bd7 20.Rae1 Nc6 21.Nb3 Qf7
22.Nc5 Bf5 23.Bxf5 Rxf5 24.Nd3 Rf8 25.b3 Qg7 26.Ne2 R5f7 27.Ng3 Nd4 28.Qf2
Nd7 29.Rd1 Nc6 30.f5 Ne7 31.Qxa7 Nxf5 32.Nxf5 Rxf5 33.Rxf5 Rxf5 34.h3 Nf8 
35.Nb4 Qf7 36.Qb6 Qd7 37.Qe3 Ne6 38.g4 Rg5 39.Re1 Kf7 40.Nd3 Qd6 41.Qf3+ 
1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.14"]
[Round "9"]
[White "Karpov, Anatoly"]
[Black "Quinteros, Miguel Angel"]
[Result "1-0"]
[WhiteElo "2645"]
[BlackElo "2480"]
[ECO "B97"]
[EventDate "1973.06.02"]
[PlyCount "73"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 8.Nb3 Be7
9.Qf3 h6 10.Bh4 Nbd7 11.O-O-O Qc7 12.Bg3 b5 13.e5 Bb7 14.Qe2 dxe5 15.fxe5 
Nh7 16.Ne4 Bg5+ 17.Kb1 O-O 18.h4 Be7 19.Nd6 Bd5 20.Rxd5 exd5 21.Nf5 Qd8 
22.Qg4 g6 23.Nxh6+ Kg7 24.Nf5+ Kh8 25.Bd3 Rg8 26.Nh6 Rg7 27.h5 Qe8 28.e6 
Ndf6 29.exf7 Qd8 30.Qd4 Nxh5 31.Be5 Bf6 32.Re1 Bxe5 33.Rxe5 N5f6 34.g4 Qf8
35.g5 Ne4 36.Bxe4 dxe4 37.Qxe4 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.14"]
[Round "9"]
[White "Korchnoi, Viktor"]
[Black "Byrne, Robert"]
[Result "1-0"]
[WhiteElo "2635"]
[BlackElo "2570"]
[ECO "E97"]
[EventDate "1973.06.02"]
[PlyCount "57"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 
9.Bd2 c5 10.dxc6 bxc6 11.Bg5 Be6 12.c5 Ne8 13.cxd6 Nxd6 14.Qa4 f6 15.Be3 
Qc7 16.Rac1 Rfb8 17.Rfd1 Bf8 18.Rd2 Nec8 19.Nd5 Qf7 20.Qxc6 Nxe4 21.Nxf6+ 
Nxf6 22.Ng5 Bd7 23.Qa6 Qe7 24.Bc5 Qg7 25.Qc4+ Kh8 26.Nf7+ Kg8 27.Nxe5+ Kh8
28.Bxf8 Qxf8 29.Nxd7 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.14"]
[Round "9"]
[White "Kuzmin, Gennady"]
[Black "Tal, Mikhail"]
[Result "1-0"]
[WhiteElo "2565"]
[BlackElo "2655"]
[ECO "E92"]
[EventDate "1973.06.02"]
[PlyCount "125"]

1.d4 Nf6 2.c4 c5 3.d5 g6 4.Nc3 Bg7 5.e4 O-O 6.Nf3 d6 7.Be2 e5 8.O-O Ne8 9.
a3 Qe7 10.b4 Nd7 11.Rb1 h6 12.g3 f5 13.Nh4 Qf6 14.exf5 gxf5 15.Bb2 b6 16.
Bd3 e4 17.Nxe4 Qxb2 18.Rxb2 fxe4 19.Bxe4 Bxb2 20.Bh7+ Kxh7 21.Qc2+ Kg8 22.
Qxb2 Ng7 23.Re1 Ne5 24.Qc3 Bf5 25.f4 Ng6 26.Nxf5 Rxf5 27.bxc5 bxc5 28.Qa5 
Rf7 29.Qa6 Rd8 30.Qb5 Ne7 31.Qa5 Rd7 32.Rb1 Ngf5 33.Rb8+ Kg7 34.Qc3+ Nd4 
35.Qe3 Ng6 36.Qe8 Nf8 37.Qc8 h5 38.Rb2 Rde7 39.Qd8 Nf5 40.Kf2 Ng6 41.Re2 
Rf8 42.Rxe7+ Ngxe7 43.Qd7 Rf7 44.Qd8 Kh7 45.a4 Ng8 46.Qg5 Ng7 47.h3 Ne7 
48.g4 Ng6 49.f5 Ne5 50.Ke2 hxg4 51.hxg4 Ne8 52.Qd8 Rf8 53.g5 Kg8 54.Qe7 
Ng7 55.f6 Nh5 56.Kd1 Ng6 57.Qxa7 Ne5 58.Qe7 Rf7 59.Qxd6 Nxc4 60.Qh2 Nxf6 
61.gxf6 Rxf6 62.Qh4 Ne3+ 63.Ke2 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.14"]
[Round "9"]
[White "Smejkal, Jan"]
[Black "Cuellar Gacharna, Miguel"]
[Result "1-0"]
[WhiteElo "2570"]
[BlackElo "2400"]
[ECO "E08"]
[EventDate "1973.06.02"]
[PlyCount "83"]

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.Bb2 Bb7 10.Nc3 c5 11.cxd5 Nxd5 12.Nxd5 Bxd5 13.e4 Bb7 14.d5 exd5 15.exd5
Bf6 16.Rad1 Re8 17.d6 Be4 18.Qd2 b5 19.Rfe1 Rc8 20.Bxf6 Qxf6 21.Qe2 Re6 
22.Qxb5 Rd8 23.Ng5 Qxg5 24.Bxe4 Nf6 25.Bf3 Rxe1+ 26.Rxe1 h5 27.Rd1 Qf5 28.
Qd3 Qe6 29.h4 g6 30.Bc6 Nd7 31.Qc3 Ne5 32.Qxc5 Rc8 33.d7 Rd8 34.Rd6 Qf5 
35.Kg2 g5 36.Qa5 Rxd7 37.Rxd7 gxh4 38.Rd8+ Kh7 39.Qd2 h3+ 40.Kg1 Ng4 41.
Qd3 h2+ 42.Kf1 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.14"]
[Round "9"]
[White "Taimanov, Mark"]
[Black "Larsen, Bent"]
[Result "1/2-1/2"]
[WhiteElo "2595"]
[BlackElo "2620"]
[ECO "E15"]
[EventDate "1973.06.02"]
[PlyCount "94"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb4+ 5.Bd2 Bxd2+ 6.Qxd2 Ba6 7.Na3 Bb7 8.Bg2
d6 9.O-O Nbd7 10.Nh4 Bxg2 11.Nxg2 O-O 12.Rad1 c6 13.f3 d5 14.Rc1 c5 15.
cxd5 Nxd5 16.Rfd1 Qe7 17.e4 N5f6 18.dxc5 Nxc5 19.Qd6 Qxd6 20.Rxd6 Rfc8 21.
Rd2 g5 22.Ne3 Ncd7 23.Rxc8+ Rxc8 24.Nac4 b5 25.e5 bxc4 26.exf6 Nxf6 27.Rc2
c3 28.Nd1 Nd5 29.Nxc3 Kg7 30.Kf2 h5 31.Rc1 g4 32.f4 Kg6 33.Ne2 Rh8 34.Nc3 
Rb8 35.b3 Rc8 36.Ne2 Rxc1 37.Nxc1 Kf5 38.Nd3 Ke4 39.Ne5 f6 40.Nc6 a6 41.
Nb8 Nb4 42.a3 Nd3+ 43.Kf1 h4 44.gxh4 Nxf4 45.Nxa6 Kf3 46.Nb4 e5 47.Nc2 e4 
1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.14"]
[Round "9"]
[White "Torre, Eugenio"]
[Black "Radulov, Ivan"]
[Result "0-1"]
[WhiteElo "2430"]
[BlackElo "2510"]
[ECO "B52"]
[EventDate "1973.06.02"]
[PlyCount "60"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.c4 e5 6.Nc3 g6 7.d3 Bg7 8.a3 
Nc6 9.Rb1 Nge7 10.b4 O-O 11.bxc5 dxc5 12.O-O h6 13.Nd5 f5 14.Qb3 b6 15.Bd2
g5 16.Bc3 fxe4 17.dxe4 Rxf3 18.gxf3 Ng6 19.Ba1 Nh4 20.Kh1 Qh3 21.Rg1 Nxf3 
22.Rg2 Rf8 23.Qa4 Ncd4 24.Qxa7 Ne2 25.Qxb6 Nh4 26.Rbg1 Qf3 27.Qe6+ Kh7 28.
Qg4 Nxg1 29.Kxg1 Rb8 30.Nc3 Qxc3 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.14"]
[Round "9"]
[White "Tukmakov, Vladimir"]
[Black "Uhlmann, Wolfgang"]
[Result "1/2-1/2"]
[WhiteElo "2560"]
[BlackElo "2550"]
[ECO "D99"]
[EventDate "1973.06.02"]
[PlyCount "86"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Bg4 8.Be3 
Nfd7 9.Qb3 Nb6 10.Rd1 Nc6 11.d5 Ne5 12.Be2 Nxf3+ 13.gxf3 Bh5 14.f4 Bxe2 
15.Nxe2 Qd7 16.Bd4 c6 17.Bxg7 Kxg7 18.Qc3+ Kg8 19.dxc6 Qxc6 20.Qxc6 bxc6 
21.Rc1 Rac8 22.Kd2 c5 23.Ke3 Rfd8 24.b3 c4 25.Rhd1 Rxd1 26.Rxd1 cxb3 27.
axb3 Kf8 28.Rc1 Rb8 29.Nd4 Rb7 30.Rc5 Ke8 31.h4 Kd8 32.Ra5 Kc7 33.Rc5+ Kd8
34.Ra5 Kc7 35.h5 Nd7 36.f3 Nf6 37.hxg6 hxg6 38.f5 gxf5 39.Rxf5 Kd8 40.Ra5 
Kc7 41.e5 Nd7 42.f4 e6 43.Ke4 Kb6 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.16"]
[Round "10"]
[White "Byrne, Robert"]
[Black "Taimanov, Mark"]
[Result "1-0"]
[WhiteElo "2570"]
[BlackElo "2595"]
[ECO "B46"]
[EventDate "1973.06.02"]
[PlyCount "82"]

1.e4 c5 2.Nf3 Nc6 3.Nc3 a6 4.d4 cxd4 5.Nxd4 e6 6.g3 Nge7 7.Nb3 b5 8.Bg2 d6
9.f4 Bb7 10.Be3 g6 11.Qd2 Qc7 12.Qf2 Bg7 13.O-O O-O 14.Rad1 Rfe8 15.Rd2 
Nc8 16.a3 Rb8 17.Rfd1 b4 18.axb4 Nxb4 19.Bd4 Bxd4 20.Qxd4 Ba8 21.Bf1 e5 
22.fxe5 Rxe5 23.Qf2 Bxe4 24.Nxe4 Rxe4 25.c3 Nc6 26.Nc5 dxc5 27.Rd7 Qxd7 
28.Rxd7 Re7 29.Rd1 N8a7 30.Bxa6 Ne5 31.Bf1 c4 32.Bg2 Nd3 33.Qd4 Nb5 34.
Qxc4 Nxb2 35.Qf4 Rbe8 36.Rb1 Nd3 37.Qd2 Na3 38.Ra1 Re1+ 39.Rxe1 Nxe1 40.
Qd7 Re2 41.Bd5 Kg7 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.16"]
[Round "10"]
[White "Cuellar Gacharna, Miguel"]
[Black "Tal, Mikhail"]
[Result "0-1"]
[WhiteElo "2400"]
[BlackElo "2655"]
[ECO "E91"]
[EventDate "1973.06.02"]
[PlyCount "158"]

1.Nf3 d6 2.d4 Nf6 3.c4 g6 4.Nc3 Bg7 5.e4 O-O 6.Be2 Bg4 7.O-O Nfd7 8.Be3 
Bxf3 9.Bxf3 Nc6 10.d5 Na5 11.Be2 Bxc3 12.bxc3 e5 13.dxe6 fxe6 14.f4 Qe7 
15.Qa4 b6 16.Rae1 Nb7 17.Bf3 Nbc5 18.Qc2 Rae8 19.g3 Rf7 20.Bg2 Ref8 21.Bh3
Kh8 22.Re2 e5 23.f5 g5 24.Bg2 Rg8 25.h3 h6 26.Qd1 Nf6 27.Bxc5 dxc5 28.Rd2 
Ne8 29.Rd8 Rgf8 30.Ra8 a5 31.Bf3 Nd6 32.Qd5 Rxa8 33.Qxa8+ Rf8 34.Qc6 Rf6 
35.Qd5 Kg7 36.Rd1 Rf8 37.Bh5 Rd8 38.Qc6 Kf6 39.Kg2 Qd7 40.Qd5 Qe7 41.Qc6 
Qd7 42.Qd5 c6 43.Qd3 Qc7 44.Qe2 a4 45.a3 b5 46.cxb5 cxb5 47.Qd3 Qc6 48.h4 
Nf7 49.hxg5+ hxg5 50.Qe3 Rxd1 51.Bxd1 Nd6 52.Bc2 b4 53.Kh3 b3 54.Bb1 c4 
55.Kg4 Nf7 56.Kf3 Qd6 57.Qe1 Kg7 58.Ke2 Qh6 59.Qg1 Qh5+ 60.Ke3 Nd6 61.Kd2 
Qf3 62.Qc5 Qg2+ 63.Kc1 b2+ 64.Kd1 Qf1+ 65.Kd2 Nf7 66.Ba2 Qd3+ 67.Ke1 Qxc3+
68.Kf1 Qf3+ 69.Kg1 Qxg3+ 70.Kh1 Qe1+ 71.Kh2 Qd2+ 72.Kh3 g4+ 73.Kxg4 Qf4+ 
74.Kh3 Ng5+ 75.Kg2 Qxe4+ 76.Kh2 Qc2+ 77.Kh1 b1=Q+ 78.Bxb1 Qxb1+ 79.Kh2 
Nf3+ 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.16"]
[Round "10"]
[White "Gligoric, Svetozar"]
[Black "Tukmakov, Vladimir"]
[Result "0-1"]
[WhiteElo "2595"]
[BlackElo "2560"]
[ECO "D87"]
[EventDate "1973.06.02"]
[PlyCount "82"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 c5 8.Ne2 
Nc6 9.Be3 O-O 10.O-O Qc7 11.Rc1 Rd8 12.Qd2 Qa5 13.Qb2 b6 14.Bd5 Bb7 15.
Rfd1 e6 16.Bb3 cxd4 17.cxd4 Rac8 18.e5 Bf8 19.a4 Qb4 20.Qa2 Qe7 21.Nf4 Na5
22.Rxc8 Rxc8 23.Bc2 Qa3 24.Qb1 Qb4 25.h4 Nc4 26.Bc1 Na3 27.Qxb4 Bxb4 28.
Bb3 Nc4 29.d5 exd5 30.Nxd5 Bxd5 31.Rxd5 Na5 32.Bc2 Rxc2 33.Rd8+ Kg7 34.Bg5
Rc6 35.Ra8 Nc4 36.Bf6+ Rxf6 37.exf6+ Kxf6 38.Rxa7 Ba5 39.Rd7 Nb2 40.Rd4 
Ke5 41.Rd7 Ke6 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.16"]
[Round "10"]
[White "Larsen, Bent"]
[Black "Karpov, Anatoly"]
[Result "1/2-1/2"]
[WhiteElo "2620"]
[BlackElo "2645"]
[ECO "A36"]
[EventDate "1973.06.02"]
[PlyCount "42"]

1.c4 c5 2.g3 g6 3.Bg2 Bg7 4.Nc3 Nc6 5.a3 e6 6.Rb1 a5 7.Nh3 Nge7 8.Nf4 O-O 
9.d3 Rb8 10.Bd2 b6 11.O-O Bb7 12.Re1 d6 13.Nb5 Nd4 14.Nxd4 Bxd4 15.Bxb7 
Rxb7 16.Qa4 Qd7 17.Qxd7 Rxd7 18.Bc3 Bg7 19.Bxg7 Kxg7 20.b4 axb4 21.axb4 
Ra8 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.16"]
[Round "10"]
[White "Quinteros, Miguel Angel"]
[Black "Kuzmin, Gennady"]
[Result "1/2-1/2"]
[WhiteElo "2480"]
[BlackElo "2565"]
[ECO "A07"]
[EventDate "1973.06.02"]
[PlyCount "110"]

1.Nf3 Nf6 2.g3 d5 3.Bg2 c6 4.d3 Bf5 5.O-O e6 6.Nbd2 h6 7.Qe1 Be7 8.e4 Bh7 
9.Qe2 O-O 10.b3 a5 11.a4 Nbd7 12.Bb2 Qb6 13.e5 Ne8 14.Kh1 Nc7 15.Ne1 Qa6 
16.f4 b5 17.g4 f6 18.exf6 Bxf6 19.Bxf6 Rxf6 20.g5 hxg5 21.fxg5 Rxf1+ 22.
Nxf1 Qb6 23.Nf3 Bf5 24.Ne3 Qc5 25.Qd2 Bg6 26.axb5 cxb5 27.d4 Qb6 28.Ng4 b4
29.Nfe5 Nxe5 30.Nxe5 Bf5 31.Rf1 Qb5 32.Qe1 Rf8 33.Qh4 Ne8 34.Qh5 Qb7 35.
Rf4 g6 36.Nxg6 Bxg6 37.Qxg6+ Ng7 38.Rxf8+ Kxf8 39.Qf6+ Kg8 40.Qd8+ Kf7 41.
Qxa5 Qe7 42.c4 Qxg5 43.Qc7+ Qe7 44.Qxe7+ Kxe7 45.cxd5 Nf5 46.dxe6 Nxd4 47.
Bd5 Nf5 48.Kg1 Ne3 49.Be4 Kxe6 50.Kf2 Ng4+ 51.Kg3 Ne5 52.Kf4 Kf6 53.Ke3 
Ng4+ 54.Kd4 Nxh2 55.Kc5 Nf1 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.16"]
[Round "10"]
[White "Radulov, Ivan"]
[Black "Estevez Morales, Guillermo"]
[Result "1-0"]
[WhiteElo "2510"]
[BlackElo "2385"]
[ECO "B73"]
[EventDate "1973.06.02"]
[PlyCount "81"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Be2 O-O 8.O-O 
d6 9.Qd2 Ng4 10.Bxg4 Bxg4 11.f4 Nxd4 12.Bxd4 e5 13.Be3 exf4 14.Rxf4 Be6 
15.Rf2 Qa5 16.Bd4 Be5 17.Bxe5 Qxe5 18.Rd1 Rfd8 19.Qd4 Qxd4 20.Rxd4 Rd7 21.
Rfd2 Rad8 22.b3 a6 23.Kf2 b5 24.a4 Rc7 25.Na2 Rdc8 26.axb5 axb5 27.Nb4 f5 
28.Rxd6 Kf7 29.Rb6 Rc5 30.Rdd6 Re5 31.Rdc6 Rd8 32.Rc7+ Rd7 33.Rxd7+ Bxd7 
34.Rb7 Ke8 35.Nd3 Rxe4 36.Rxd7 Kxd7 37.Nc5+ Kd6 38.Nxe4+ fxe4 39.Ke3 Ke5 
40.c4 b4 41.g3 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.16"]
[Round "10"]
[White "Rukavina, Josip"]
[Black "Hubner, Robert"]
[Result "1/2-1/2"]
[WhiteElo "2460"]
[BlackElo "2600"]
[ECO "E62"]
[EventDate "1973.06.02"]
[PlyCount "60"]

1.Nf3 g6 2.d4 Nf6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.c4 Nc6 7.Nc3 Bf5 8.Be3 e5 
9.dxe5 dxe5 10.Rc1 Re8 11.h3 Nd7 12.Qd2 Nb6 13.Nd5 Be4 14.Rfd1 Qc8 15.Bh6 
Rd8 16.Bxg7 Kxg7 17.Nxe5 Bxd5 18.Ng4 Bxg2 19.Qc3+ Kg8 20.Nf6+ Kf8 21.Nxh7+
Kg8 22.Nf6+ Kg7 23.Ng4+ Kh7 24.Nf6+ Kh6 25.Ng4+ Kh7 26.Nf6+ Kg7 27.Ng4+ 
Kg8 28.Nf6+ Kf8 29.Nh7+ Kg8 30.Nf6+ Kf8 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.16"]
[Round "10"]
[White "Smejkal, Jan"]
[Black "Torre, Eugenio"]
[Result "1-0"]
[WhiteElo "2570"]
[BlackElo "2430"]
[ECO "E62"]
[EventDate "1973.06.02"]
[PlyCount "63"]

1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 d6 5.Nc3 O-O 6.Bg2 c6 7.O-O Qa5 8.h3 e5 9.
d5 cxd5 10.cxd5 Na6 11.Nd2 Nc7 12.Nb3 Qa6 13.e4 Bd7 14.a4 Nfe8 15.Be3 b6 
16.Qd2 f5 17.Rfc1 Nf6 18.exf5 gxf5 19.f4 Rae8 20.a5 b5 21.fxe5 dxe5 22.Nc5
Qd6 23.Nb7 Qa6 24.Nc5 Qd6 25.Nb7 Qa6 26.d6 Ne6 27.Nd5 e4 28.Ne7+ Kf7 29.
Nc5 Nxc5 30.Rxc5 Rd8 31.Rc7 Ne8 32.Rxd7 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.16"]
[Round "10"]
[White "Uhlmann, Wolfgang"]
[Black "Korchnoi, Viktor"]
[Result "1/2-1/2"]
[WhiteElo "2550"]
[BlackElo "2635"]
[ECO "A29"]
[EventDate "1973.06.02"]
[PlyCount "53"]

1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.g3 Bb4 5.Bg2 O-O 6.O-O Bxc3 7.bxc3 d6 8.d3 
Bd7 9.e4 Kh8 10.Nh4 Ng8 11.Be3 Be6 12.Qd2 Nge7 13.f4 exf4 14.Bxf4 f6 15.
Be3 Qd7 16.Rab1 b6 17.Nf5 Ne5 18.Nxe7 Qxe7 19.h3 Rae8 20.g4 Qd7 21.Kh2 Bf7
22.Bf4 Bg6 23.Qe2 c6 24.Rbe1 Bf7 25.Bg3 Kg8 26.Qd1 Re7 27.Rf5 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.17"]
[Round "11"]
[White "Estevez Morales, Guillermo"]
[Black "Smejkal, Jan"]
[Result "0-1"]
[WhiteElo "2385"]
[BlackElo "2570"]
[ECO "D87"]
[EventDate "1973.06.02"]
[PlyCount "71"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 c5 8.Ne2 
O-O 9.O-O Nc6 10.Be3 Qc7 11.Rc1 Rd8 12.Bf4 Qd7 13.dxc5 Qe8 14.Bd5 Bd7 15.
Qd3 e6 16.Bb3 Ne5 17.Bxe5 Bxe5 18.f4 Bb5 19.Qe3 Bg7 20.Rfd1 Qc6 21.c4 Ba6 
22.Rd6 Rxd6 23.cxd6 Qxd6 24.e5 Qc6 25.Ng3 b6 26.Bd1 Bf8 27.Kh1 Rd8 28.Bf3 
Qc5 29.Qb3 Qa3 30.Ra1 Rd3 31.Qc2 Bh6 32.Be4 Rd4 33.Rd1 Rxd1+ 34.Qxd1 Bxf4 
35.Qd8+ Qf8 36.Qc7 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.17"]
[Round "11"]
[White "Hubner, Robert"]
[Black "Radulov, Ivan"]
[Result "1-0"]
[WhiteElo "2600"]
[BlackElo "2510"]
[ECO "D24"]
[EventDate "1973.06.02"]
[PlyCount "65"]

1.Nf3 Nf6 2.c4 e6 3.d4 d5 4.Nc3 dxc4 5.e4 c5 6.Bxc4 cxd4 7.Nxd4 Nbd7 8.O-O
Bc5 9.Nb3 Be7 10.Qe2 e5 11.Be3 O-O 12.Rfd1 a6 13.a4 Bb4 14.Na2 Be7 15.a5 
Qe8 16.f3 Nb8 17.Nc3 Bd7 18.Nc5 Bc6 19.Nd5 Bd8 20.Nb4 Qe7 21.Nd5 Qe8 22.
Bd2 Kh8 23.Bb4 Rg8 24.Qd3 Nbd7 25.Nxf6 Nxf6 26.Qb3 Rf8 27.Nxb7 Be7 28.Nd6 
Qb8 29.Ba3 Qa7+ 30.Kh1 Rab8 31.Qc3 Bb5 32.Bxb5 axb5 33.Bc5 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.17"]
[Round "11"]
[White "Karpov, Anatoly"]
[Black "Byrne, Robert"]
[Result "1/2-1/2"]
[WhiteElo "2645"]
[BlackElo "2570"]
[ECO "B92"]
[EventDate "1973.06.02"]
[PlyCount "42"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be6 8.f4 Qc7
9.f5 Bc4 10.a4 Nbd7 11.Be3 Be7 12.a5 O-O 13.O-O b5 14.axb6 Nxb6 15.Kh1 
Rfc8 16.Bxb6 Qxb6 17.Bxc4 Rxc4 18.Qe2 Rac8 19.Ra2 Bd8 20.Rfa1 Qb7 21.Ra4 
Rxa4 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.17"]
[Round "11"]
[White "Korchnoi, Viktor"]
[Black "Gligoric, Svetozar"]
[Result "1/2-1/2"]
[WhiteElo "2635"]
[BlackElo "2595"]
[ECO "E99"]
[EventDate "1973.06.02"]
[PlyCount "81"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 
9.Bd2 Ne8 10.Ne1 f5 11.Nd3 Nf6 12.f3 f4 13.Rc1 g5 14.c5 Ng6 15.cxd6 cxd6 
16.Nb5 Rf7 17.Nf2 Bf8 18.Qc2 Bd7 19.Qc7 Ne8 20.Qxd8 Rxd8 21.Nxa7 Ra8 22.
Nb5 Rxa2 23.Bc3 Ra8 24.Ra1 Rb8 25.Bb4 Be7 26.Rfc1 h5 27.Rc3 Rf6 28.Rca3 
Kg7 29.Nc3 Nc7 30.Ra7 Bd8 31.Kf1 Ne7 32.R7a3 Na6 33.Ba5 Bxa5 34.Rxa5 Nc7 
35.Rc1 Nc8 36.Ke1 Rf7 37.b4 Kf6 38.h3 Rg7 39.Ra2 Nb6 40.Ra5 Nc8 41.Ra2 
1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.17"]
[Round "11"]
[White "Kuzmin, Gennady"]
[Black "Larsen, Bent"]
[Result "0-1"]
[WhiteElo "2565"]
[BlackElo "2620"]
[ECO "B30"]
[EventDate "1973.06.02"]
[PlyCount "104"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 Nf6 4.e5 Nd5 5.O-O Qc7 6.Re1 e6 7.b3 b6 8.Bf1 Bb7 
9.Bb2 a6 10.Na3 Be7 11.Nc4 O-O 12.Nd6 Bxd6 13.exd6 Qxd6 14.d4 cxd4 15.Nxd4
Nf4 16.Nxc6 Qxc6 17.Qg4 Ng6 18.c4 d6 19.Rad1 e5 20.Re3 f5 21.Qg5 Rf6 22.
Rg3 f4 23.Rgd3 Ne7 24.Rxd6 Rxd6 25.Rxd6 Qxd6 26.Bxe5 Qg6 27.Qxe7 Be4 28.c5
bxc5 29.Bxf4 Re8 30.Qd6 Qxd6 31.Bxd6 Rd8 32.Bc4+ Bd5 33.Bxd5+ Kh8 34.g3 
Rxd6 35.Bc4 g5 36.Kg2 Kg7 37.a4 a5 38.Kf3 Rh6 39.Kg2 Kf6 40.h3 Ke5 41.Bg8 
Kd4 42.Bc4 Rf6 43.Bg8 Kc3 44.Bc4 Kd2 45.Kf1 h5 46.Be2 h4 47.gxh4 gxh4 48.
Bc4 Rf3 49.Kg2 Rc3 50.f4 Ke1 51.f5 Rg3+ 52.Kh2 Rf3 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.17"]
[Round "11"]
[White "Taimanov, Mark"]
[Black "Uhlmann, Wolfgang"]
[Result "1/2-1/2"]
[WhiteElo "2595"]
[BlackElo "2550"]
[ECO "D94"]
[EventDate "1973.06.02"]
[PlyCount "124"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.e3 O-O 6.Bd2 e6 7.Rc1 b6 8.Be2 Bb7 
9.O-O dxc4 10.Bxc4 Nbd7 11.Qe2 c5 12.Rfd1 Qe7 13.Ba6 Bxa6 14.Qxa6 e5 15.
dxe5 Nxe5 16.Nxe5 Qxe5 17.h3 Qe6 18.Be1 Qc8 19.Qe2 Qb7 20.Nb5 Rfd8 21.b4 
Ne4 22.Qf3 Rxd1 23.Rxd1 cxb4 24.Bxb4 Re8 25.Nc3 f5 26.Qe2 Nxc3 27.Bxc3 
Bxc3 28.Qc4+ Qf7 29.Qxc3 Qe6 30.Qa3 Qf7 31.g3 h6 32.Rd6 Kh7 33.Qc3 Re7 34.
Rd8 Qg7 35.Qd2 Qe5 36.Kh2 Qf6 37.Qd5 Qf7 38.Qd6 Rb7 39.a3 Qe7 40.Qd4 Qg7 
41.Qd5 Qf7 42.Qd3 Re7 43.Qd6 Qg7 44.Kg2 Rf7 45.Qd5 Qf6 46.Rd6 Qg7 47.g4 
fxg4 48.hxg4 Qf8 49.f3 Qg7 50.Qd4 Qxd4 51.Rxd4 a5 52.a4 Rc7 53.Kg3 g5 54.
f4 Rc3 55.Kf3 gxf4 56.Kxf4 Rb3 57.e4 b5 58.Rd7+ Kg6 59.Rd6+ Kg7 60.axb5 
Rxb5 61.Ra6 h5 62.Ra7+ Kg6 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.17"]
[Round "11"]
[White "Tal, Mikhail"]
[Black "Quinteros, Miguel Angel"]
[Result "1-0"]
[WhiteElo "2655"]
[BlackElo "2480"]
[ECO "B93"]
[EventDate "1973.06.02"]
[PlyCount "113"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 Nbd7 7.Be2 e5 8.Nf5 
Nc5 9.Ng3 Qb6 10.f5 Bd7 11.a4 Bc6 12.Bf3 a5 13.b3 Be7 14.Be3 Qb4 15.Qd2 
Bd8 16.O-O Bb6 17.Kh1 Ncd7 18.Rad1 O-O 19.Nge2 Rfd8 20.Bg5 h6 21.Bh4 Bc5 
22.Nc1 Qb6 23.Qe1 Bd4 24.N1e2 Re8 25.Nxd4 exd4 26.Bf2 d5 27.Bxd4 Qc7 28.e5
Nxe5 29.Qg3 Re7 30.Be2 Rae8 31.h3 Qd8 32.Qh4 Qd6 33.Qg3 Nc4 34.Qxd6 Nxd6 
35.Bd3 Nfe4 36.Ne2 b5 37.f6 gxf6 38.Bxf6 Rb7 39.axb5 Bxb5 40.Bd4 Bxd3 41.
cxd3 Ng5 42.Ng3 Rxb3 43.Nh5 Rd8 44.Nf6+ Kf8 45.Ng4 Ne6 46.Bf6 Ra8 47.Nxh6 
a4 48.Rde1 a3 49.Be5 Ke7 50.Bxd6+ Kxd6 51.Nxf7+ Kc5 52.Rxe6 a2 53.Rc1+ Kd4
54.Ree1 Rab8 55.Ne5 Rb1 56.Nc6+ Kxd3 57.Nxb8 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.17"]
[Round "11"]
[White "Torre, Eugenio"]
[Black "Cuellar Gacharna, Miguel"]
[Result "1-0"]
[WhiteElo "2430"]
[BlackElo "2400"]
[ECO "B89"]
[EventDate "1973.06.02"]
[PlyCount "147"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Be3 Qc7 8.Qe2 
Be7 9.O-O-O a6 10.Bb3 Na5 11.g4 b5 12.g5 Nxb3+ 13.axb3 Nd7 14.h4 b4 15.Na4
Bb7 16.f3 g6 17.Qh2 O-O-O 18.h5 Rhf8 19.hxg6 hxg6 20.Qd2 Qa5 21.Ne2 Bc6 
22.Kb1 Nc5 23.Nxc5 dxc5 24.Qe1 Rxd1+ 25.Qxd1 Rd8 26.Qg1 Qb5 27.Nc1 c4 28.
Rh7 Rf8 29.bxc4 Qxc4 30.b3 Qb5 31.Nd3 Bd6 32.Bd4 Qb8 33.Bg7 Re8 34.Bf6 Qc7
35.Qd4 Bb5 36.Nxb4 Kb7 37.Nd3 Rc8 38.c4 Be8 39.Rh8 Qc6 40.c5 Bc7 41.Qc4 
Qb5 42.Nb2 Bb8 43.Qd4 Bc7 44.Qe3 Kc6 45.Na4 Rb8 46.Ka2 Bf4 47.Qc3 Qe2+ 48.
Nb2 Rc8 49.Qd3 Qxd3 50.Nxd3 Bc7 51.Be5 Kd7 52.Bxc7 Rxc7 53.b4 Ke7 54.Kb3 
Ra7 55.Ne5 a5 56.Nc4 axb4 57.Nd6 Bd7 58.Kxb4 Ra4+ 59.Kb3 Ra1 60.Rh7 Be8 
61.f4 Rg1 62.Nc4 Re1 63.Rh8 Bc6 64.Ne5 Bxe4 65.Rh7 Ke8 66.Nxf7 Bd5+ 67.Kc3
Re3+ 68.Kd2 Rf3 69.Ne5 Rxf4 70.Rh8+ Rf8 71.Rxf8+ Kxf8 72.Nxg6+ Ke8 73.Ne5 
Ke7 74.Kc3 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.17"]
[Round "11"]
[White "Tukmakov, Vladimir"]
[Black "Rukavina, Josip"]
[Result "1-0"]
[WhiteElo "2560"]
[BlackElo "2460"]
[ECO "C94"]
[EventDate "1973.06.02"]
[PlyCount "101"]

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 Ne6
16.d4 exd4 17.cxd4 d5 18.e5 Ne4 19.a3 a5 20.Rb1 axb4 21.axb4 Nxg3 22.fxg3 
c6 23.Qd3 g6 24.Be3 Bc8 25.g4 Bd7 26.Rf1 Be7 27.Rf2 Qb6 28.Qc3 Ra7 29.Rbf1
Rea8 30.Bb3 Be8 31.h4 Qd8 32.g3 Ra3 33.Bc1 Ra1 34.Kg2 Qd7 35.Bc2 Qa7 36.
Bf5 Ng7 37.Bc2 Qd7 38.g5 R8a7 39.Nh2 Bd8 40.Bd1 R1a2 41.Bb2 Ne6 42.Ng4 Kg7
43.Nf6 Qe7 44.Bb3 R2a6 45.Qe3 Rb7 46.h5 Ra8 47.Rh1 Nf8 48.Qf4 Bb6 49.Qh4 
Kh8 50.Rhf1 Qxb4 51.hxg6 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.19"]
[Round "12"]
[White "Byrne, Robert"]
[Black "Kuzmin, Gennady"]
[Result "1/2-1/2"]
[WhiteElo "2570"]
[BlackElo "2565"]
[ECO "C93"]
[EventDate "1973.06.02"]
[PlyCount "74"]

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 h6 10.d4 Re8 11.Nbd2 Bf8 12.Nf1 Bd7 13.Ng3 Na5 14.Bc2 c5 15.b3 Nc6 
16.d5 Ne7 17.Be3 Qc8 18.Qd2 Kh8 19.a4 Nfg8 20.Nh2 Qb7 21.Ra2 Reb8 22.b4 
cxb4 23.cxb4 bxa4 24.Bxa4 Bxa4 25.Rxa4 f5 26.Nxf5 Nxf5 27.exf5 Qd7 28.Rea1
Qxf5 29.Nf1 Nf6 30.Ng3 Qg6 31.Ra5 Qe8 32.Ne2 Rb5 33.Nc3 Rxb4 34.Rxa6 Rab8 
35.Rc6 Qg6 36.Rc1 Ng8 37.Qc2 Qxc2 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.19"]
[Round "12"]
[White "Cuellar Gacharna, Miguel"]
[Black "Quinteros, Miguel Angel"]
[Result "0-1"]
[WhiteElo "2400"]
[BlackElo "2480"]
[ECO "E61"]
[EventDate "1973.06.02"]
[PlyCount "100"]

1.d4 c5 2.e3 Nf6 3.Nf3 b6 4.d5 g6 5.c4 Bg7 6.Nc3 O-O 7.Be2 d6 8.O-O e5 9.
dxe6 fxe6 10.Qc2 Bb7 11.Rd1 Qe7 12.Bd2 e5 13.Be1 e4 14.Nd2 Nbd7 15.a4 Nb8 
16.Nd5 Bxd5 17.cxd5 Nbd7 18.Bb5 Rad8 19.Nc4 Ne5 20.Nxe5 Qxe5 21.h3 a5 22.
Ra3 Kh8 23.Bc3 Qf5 24.Qd2 h5 25.Bc4 Nd7 26.Rf1 Bxc3 27.Qxc3+ Ne5 28.Rb3 
Rb8 29.f4 exf3 30.Rxf3 Qb1+ 31.Kh2 Kg8 32.Rxf8+ Rxf8 33.Bd3 Qd1 34.Qc2 Qe1
35.Qe2 Qh4 36.g3 Qxa4 37.Rxb6 Nf3+ 38.Kh1 Qa1+ 39.Qf1 Ne1 40.Qg1 Qd1 41.
Bc4 Qb1 42.Be2 Qe4+ 43.Kh2 Nf3+ 44.Bxf3 Rxf3 45.Rb8+ Kf7 46.Rb7+ Ke8 47.
Rb8+ Kd7 48.h4 Qc2+ 49.Kh3 Rf2 50.Rb7+ Kc8 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.19"]
[Round "12"]
[White "Gligoric, Svetozar"]
[Black "Taimanov, Mark"]
[Result "1/2-1/2"]
[WhiteElo "2595"]
[BlackElo "2595"]
[ECO "A77"]
[EventDate "1973.06.02"]
[PlyCount "92"]

1.d4 Nf6 2.c4 e6 3.Nc3 c5 4.d5 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O 
9.O-O Re8 10.Nd2 Nbd7 11.a4 Ne5 12.Qc2 Nh5 13.Bxh5 gxh5 14.Nd1 b6 15.Ra3 
f5 16.exf5 Ba6 17.Ne4 Bxf1 18.Kxf1 Nf7 19.Rg3 Kh8 20.f6 Bf8 21.Bd2 Qd7 22.
Bc3 Bh6 23.Ne3 Rg8 24.Rg7 Rxg7 25.fxg7+ Bxg7 26.Nf6 Bxf6 27.Bxf6+ Kg8 28.
Qe4 Re8 29.Qf4 Kf8 30.Nf5 Qb7 31.Bg7+ Kg8 32.Bc3 Qa6+ 33.Kg1 Qd3 34.h3 Re2
35.Ng3 Qxd5 36.Nxe2 Qd1+ 37.Kh2 Qxe2 38.Qg3+ Kf8 39.Qg7+ Ke7 40.Qf6+ Ke8 
41.Qf5 Nd8 42.Qxh7 Qxf2 43.Qxh5+ Nf7 44.Qg4 Kd8 45.Qe6 Qf4+ 46.Kg1 Kc7 
1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.19"]
[Round "12"]
[White "Larsen, Bent"]
[Black "Tal, Mikhail"]
[Result "0-1"]
[WhiteElo "2620"]
[BlackElo "2655"]
[ECO "A37"]
[EventDate "1973.06.02"]
[PlyCount "70"]

1.c4 g6 2.Nc3 Bg7 3.Nf3 c5 4.g3 Nc6 5.Bg2 e6 6.O-O Nge7 7.d3 O-O 8.Bd2 d5 
9.Qc1 b6 10.Bh6 Bb7 11.Bxg7 Kxg7 12.cxd5 Nxd5 13.h4 Nd4 14.Re1 h6 15.Ne5 
Nxc3 16.Qxc3 Bxg2 17.Kxg2 Qd5+ 18.Nf3 Rad8 19.Kg1 e5 20.Nxd4 exd4 21.Qc4 
Qh5 22.Qa4 Rfe8 23.Qxa7 Rd6 24.b4 Rf6 25.bxc5 Qf5 26.f3 Qh3 27.Qc7 Rf5 28.
cxb6 Rfe5 29.e4 Qxg3+ 30.Kh1 Qxh4+ 31.Kg2 Rg5+ 32.Kf1 Qh3+ 33.Ke2 Rg2+ 34.
Kd1 Qxf3+ 35.Kc1 Qf2 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.19"]
[Round "12"]
[White "Radulov, Ivan"]
[Black "Tukmakov, Vladimir"]
[Result "1/2-1/2"]
[WhiteElo "2510"]
[BlackElo "2560"]
[ECO "B81"]
[EventDate "1973.06.02"]
[PlyCount "79"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 h6 7.Be2 Nc6 8.Be3 a6 
9.Rg1 Be7 10.Qd2 Nxd4 11.Bxd4 e5 12.Be3 Be6 13.h4 d5 14.exd5 Nxd5 15.O-O-O
Nxe3 16.Qxe3 Qa5 17.g5 hxg5 18.Bg4 f5 19.Bxf5 Bxf5 20.Rd5 Qc7 21.Rxe5 g6 
22.Re1 Rh7 23.Qxg5 Kf8 24.Rxe7 Rxe7 25.Qf6+ Ke8 26.Qh8+ Kf7 27.Qh7+ Kf8 
28.Rxe7 Qxe7 29.Qh8+ Kf7 30.Qxa8 g5 31.h5 Qe1+ 32.Nd1 Qe4 33.Ne3 Qh1+ 34.
Kd2 Qf3 35.Ke1 Qh1+ 36.Kd2 Qf3 37.Ke1 Qh1+ 38.Kd2 Qf3 39.Kc3 Qc6+ 40.Kd2 
1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.19"]
[Round "12"]
[White "Rukavina, Josip"]
[Black "Korchnoi, Viktor"]
[Result "1-0"]
[WhiteElo "2460"]
[BlackElo "2635"]
[ECO "D47"]
[EventDate "1973.06.02"]
[PlyCount "77"]

1.Nf3 d5 2.d4 Nf6 3.c4 c6 4.Nc3 e6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 
Bb7 9.e4 b4 10.Na4 c5 11.e5 Nd5 12.dxc5 Qa5 13.O-O Bxc5 14.Re1 N5b6 15.
Nxb6 Qxb6 16.Qe2 Rc8 17.a3 Bxf3 18.gxf3 b3 19.Rd1 Rc7 20.Bf4 O-O 21.Rd2 
Nb8 22.Rad1 Nc6 23.Qe4 g6 24.Bg5 Rd7 25.Qf4 Be7 26.Bf6 Bxf6 27.exf6 Kh8 
28.Be4 Nd4 29.Kg2 Rg8 30.h4 Qc5 31.Qg5 e5 32.f4 Ne6 33.Qxe5 Rxd2 34.Rxd2 
Qc1 35.Bd5 Qxd2 36.Bxe6 Qd8 37.Bxf7 Rf8 38.Qe7 h5 39.Bxg6 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.19"]
[Round "12"]
[White "Smejkal, Jan"]
[Black "Hubner, Robert"]
[Result "0-1"]
[WhiteElo "2570"]
[BlackElo "2600"]
[ECO "E66"]
[EventDate "1973.06.02"]
[PlyCount "104"]

1.c4 Nf6 2.Nf3 g6 3.d4 Bg7 4.g3 O-O 5.Bg2 c5 6.O-O Nc6 7.Nc3 d6 8.d5 Na5 
9.Nd2 e5 10.e4 Ne8 11.b3 a6 12.Bb2 Rb8 13.Qc2 f5 14.exf5 gxf5 15.Rae1 b5 
16.Nd1 Rb7 17.f4 e4 18.Bxg7 Rxg7 19.Qc3 h5 20.Ne3 b4 21.Qa1 Nb7 22.Rf2 a5 
23.Ndf1 Bd7 24.Bh3 a4 25.bxa4 Na5 26.Rc1 Rg6 27.Kh1 Qf6 28.Qxf6 Rgxf6 29.
Ng2 Nc7 30.Rb2 Na8 31.Nd2 Nb6 32.Ne3 Nxa4 33.Rbc2 R6f7 34.Nb3 Ra8 35.Nd1 
Nb6 36.Ne3 Kg7 37.Bf1 Kg6 38.Be2 Be8 39.Re1 Rfa7 40.Nc1 Nb7 41.Kg2 Ra3 42.
Kf2 Na4 43.Nd1 Nc3 44.Nxc3 bxc3 45.h3 Ba4 46.Nb3 Na5 47.g4 Bxb3 48.axb3 
Nxb3 49.gxh5+ Kh7 50.Rxc3 Nd4 51.Rxa3 Rxa3 52.Bd1 Rc3 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.19"]
[Round "12"]
[White "Torre, Eugenio"]
[Black "Estevez Morales, Guillermo"]
[Result "1-0"]
[WhiteElo "2430"]
[BlackElo "2385"]
[ECO "B31"]
[EventDate "1973.06.02"]
[PlyCount "81"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.Re1 e5 6.Bxc6 dxc6 7.d3 Ne7 8.Nbd2 
O-O 9.a4 b6 10.Nc4 Bg4 11.h3 Bxf3 12.Qxf3 Qc7 13.Qg3 b5 14.Na3 a6 15.Be3 
c4 16.Bc5 cxd3 17.Qxd3 Rfd8 18.Qe3 Rab8 19.axb5 axb5 20.c3 Nc8 21.Nc2 Nb6 
22.b3 Nd7 23.Be7 Re8 24.Ra7 Rb7 25.Bd6 Qc8 26.Rea1 Rxa7 27.Rxa7 Nf8 28.c4 
bxc4 29.bxc4 Ne6 30.Qf3 Nf4 31.c5 Qe6 32.Qg4 Qxg4 33.hxg4 Ne6 34.Nb4 Bf8 
35.Nd3 f6 36.Ra6 Rc8 37.g3 Bxd6 38.cxd6 c5 39.d7 Rd8 40.Rxe6 c4 41.Re8+ 
1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.19"]
[Round "12"]
[White "Uhlmann, Wolfgang"]
[Black "Karpov, Anatoly"]
[Result "0-1"]
[WhiteElo "2550"]
[BlackElo "2645"]
[ECO "B22"]
[EventDate "1973.06.02"]
[PlyCount "90"]

1.c4 c5 2.Nf3 Nf6 3.Nc3 d5 4.cxd5 Nxd5 5.e3 e6 6.d4 Nc6 7.Bd3 cxd4 8.exd4 
Be7 9.O-O O-O 10.Re1 Nf6 11.a3 b6 12.Be3 Bb7 13.Rc1 Rc8 14.Bb1 Rc7 15.Qd3 
Rd7 16.Qc2 g6 17.Ba2 Ng4 18.Rcd1 Nxe3 19.fxe3 Bf6 20.Qf2 Bg7 21.Rd2 Ne7 
22.e4 h6 23.Red1 Qb8 24.Qe3 Rfd8 25.h3 Kh7 26.Kh1 a6 27.Rf2 Ng8 28.Rdf1 b5
29.h4 Nf6 30.Ne5 Rxd4 31.Rxf6 Qxe5 32.Rxf7 R8d7 33.Rxd7 Rxd7 34.Qh3 Rd6 
35.Bb1 Rd2 36.h5 gxh5 37.Nd1 Bc6 38.Qf3 Be8 39.b4 Bg6 40.Nf2 Qd4 41.Nh3 e5
42.Nf2 Rb2 43.Kh2 Qc4 44.Rd1 Rb3 45.Nd3 Qxe4 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.21"]
[Round "13"]
[White "Estevez Morales, Guillermo"]
[Black "Cuellar Gacharna, Miguel"]
[Result "1-0"]
[WhiteElo "2385"]
[BlackElo "2400"]
[ECO "B53"]
[EventDate "1973.06.02"]
[PlyCount "85"]

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 O-O 11.Kb1 Qa5 12.Qd2 Kh8 13.Nd4 Rac8 14.f3 
Rfd8 15.g4 a6 16.h4 b5 17.Bxf6 Bxf6 18.g5 Bxd4 19.Qxd4 b4 20.Ne2 Ba4 21.b3
Bb5 22.Nc1 Qc7 23.Rd2 a5 24.Red1 d5 25.f4 Qxf4 26.exd5 Qxd4 27.Rxd4 e5 28.
Re4 f6 29.a3 Be8 30.axb4 Bg6 31.Rc4 axb4 32.Kb2 e4 33.Na2 f5 34.Nxb4 f4 
35.Rxc8 Rxc8 36.d6 e3 37.d7 Rd8 38.Nc6 e2 39.Ra1 Rf8 40.d8=Q Rxd8 41.Nxd8 
f3 42.Ne6 Kg8 43.Nd4 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.21"]
[Round "13"]
[White "Hubner, Robert"]
[Black "Torre, Eugenio"]
[Result "1-0"]
[WhiteElo "2600"]
[BlackElo "2430"]
[ECO "A64"]
[EventDate "1973.06.02"]
[PlyCount "99"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 g6 6.Nf3 Bg7 7.g3 O-O 8.Bg2 d6 
9.O-O Re8 10.Nd2 Nbd7 11.a4 a6 12.h3 Rb8 13.Nc4 Ne5 14.Na3 Qc7 15.Re1 c4 
16.Be3 Nh5 17.a5 f5 18.Bb6 Qe7 19.f4 Nd7 20.Bf2 b5 21.axb6 Nxb6 22.e4 fxe4
23.Rxe4 Qd8 24.Rxe8+ Qxe8 25.Qd2 Qf8 26.Kh2 Bh6 27.Be3 Nf6 28.Qe2 Bg7 29.
Ra2 Nfd7 30.Nxc4 Nxc4 31.Qxc4 Qd8 32.Ne4 Nb6 33.Qc6 Bd7 34.Qc1 Bb5 35.Ng5 
Nc4 36.Ne6 Qe7 37.Bf2 Bf6 38.b3 Nb6 39.Rc2 Bd7 40.Rc7 Qe8 41.Qe3 Nc8 42.g4
Ne7 43.Qa7 Bxe6 44.dxe6 g5 45.Bd4 Bxd4 46.Qxd4 gxf4 47.Qf6 Qf8 48.Qxe7 
Qxe7 49.Rxe7 Rxb3 50.Rd7 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.21"]
[Round "13"]
[White "Karpov, Anatoly"]
[Black "Gligoric, Svetozar"]
[Result "1-0"]
[WhiteElo "2645"]
[BlackElo "2595"]
[ECO "C95"]
[EventDate "1973.06.02"]
[PlyCount "125"]

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 c5 13.d5 Ne8 14.Nf1 g6 15.Bh6 Ng7 
16.Ne3 Nf6 17.a4 Kh8 18.b3 Rb8 19.Qe2 Bc8 20.axb5 axb5 21.Ra7 Ng8 22.Bxg7+
Kxg7 23.Rea1 Nf6 24.Bd3 Bd7 25.Qa2 Ne8 26.Qa6 Rb6 27.Qa5 Nf6 28.Ng4 Rb8 
29.Nxf6 Bxf6 30.Qc7 Qxc7 31.Rxc7 Rfd8 32.Raa7 Be8 33.Rab7 Kg8 34.g4 h6 35.
h4 Rxb7 36.Rxb7 c4 37.bxc4 bxc4 38.Be2 Ra8 39.Bxc4 Ba4 40.Bb3 Bxb3 41.Rxb3
Rc8 42.Kg2 h5 43.gxh5 gxh5 44.Rb6 Rxc3 45.Rxd6 Kg7 46.Rc6 Rd3 47.Rc7 Kg6 
48.Rc8 Bg7 49.Rc6+ Kh7 50.Ng5+ Kg8 51.Rc8+ Bf8 52.Rc7 f6 53.Ne6 Bh6 54.Rd7
Rd2 55.Kf1 Rd1+ 56.Ke2 Rd2+ 57.Ke1 Rc2 58.d6 Rc1+ 59.Ke2 Rc2+ 60.Kf1 Rc6 
61.Kg2 Rb6 62.Nc7 Rb7 63.Nd5 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.21"]
[Round "13"]
[White "Korchnoi, Viktor"]
[Black "Radulov, Ivan"]
[Result "1-0"]
[WhiteElo "2635"]
[BlackElo "2510"]
[ECO "D28"]
[EventDate "1973.06.02"]
[PlyCount "71"]

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.Qe2 Nc6 7.O-O a6 8.Nc3 Qc7
9.d5 exd5 10.Nxd5 Nxd5 11.Bxd5 Bd6 12.b3 O-O 13.Bb2 Bg4 14.h3 Bh5 15.Rfd1 
Rfe8 16.Rd2 Rad8 17.Rad1 Nd4 18.Bxd4 Bh2+ 19.Kh1 Rxd5 20.g4 Bg6 21.Nxh2 
cxd4 22.Rxd4 Be4+ 23.f3 Rxd4 24.Rxd4 Bc6 25.Qf2 a5 26.Kg2 g6 27.Qd2 Qe7 
28.e4 f5 29.gxf5 gxf5 30.exf5 Qe2+ 31.Kg3 Qxd2 32.Rxd2 a4 33.Ng4 Re1 34.
Kf4 Rb1 35.Ne5 Kg7 36.Rd6 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.21"]
[Round "13"]
[White "Kuzmin, Gennady"]
[Black "Uhlmann, Wolfgang"]
[Result "1-0"]
[WhiteElo "2565"]
[BlackElo "2550"]
[ECO "C09"]
[EventDate "1973.06.02"]
[PlyCount "87"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.Ngf3 Nc6 5.exd5 exd5 6.Bb5 Bd6 7.dxc5 Bxc5 8.
O-O Ne7 9.Nb3 Bd6 10.Bg5 O-O 11.Bh4 Bg4 12.Be2 Qb6 13.Bxe7 Nxe7 14.Qd4 
Qxd4 15.Nfxd4 Bd7 16.Rad1 Rfd8 17.Rfe1 Kf8 18.c3 a5 19.a3 a4 20.Na1 Nc8 
21.Nac2 Nb6 22.Ne3 Bf4 23.Ndc2 Be6 24.Rd4 Bxe3 25.Nxe3 Nc4 26.Red1 Rdc8 
27.Nxd5 Nxb2 28.Rb1 Bxd5 29.Rxd5 Nc4 30.Rxb7 Na5 31.Rbb5 Nc4 32.Rd7 g6 33.
f4 Ra6 34.Rb4 Rac6 35.Bd3 Kg7 36.Rd4 Nxa3 37.c4 Ra6 38.Kf2 Ra5 39.Ke3 Rc7 
40.Kd2 h5 41.Re4 Rd7 42.Re1 Rc5 43.Rc1 Rd4 44.Ke3 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.21"]
[Round "13"]
[White "Quinteros, Miguel Angel"]
[Black "Larsen, Bent"]
[Result "1-0"]
[WhiteElo "2480"]
[BlackElo "2620"]
[ECO "E62"]
[EventDate "1973.06.02"]
[PlyCount "73"]

1.Nf3 g6 2.d4 Nf6 3.c4 Bg7 4.g3 d6 5.Nc3 O-O 6.Bg2 c6 7.O-O Bf5 8.b3 Qa5 
9.Qd2 e5 10.Bb2 Re8 11.e4 Bg4 12.d5 c5 13.Ne1 Na6 14.Nd3 Bd7 15.a4 h5 16.
h3 h4 17.g4 Nh7 18.f4 exf4 19.Qxf4 Bxc3 20.Qxf7+ Kh8 21.Nf4 Nf8 22.Nxg6+ 
Nxg6 23.Qxg6 Re7 24.Qxd6 Bxb2 25.Qxe7 Qd8 26.Qd6 Qe8 27.Qh6+ Kg8 28.Rae1 
Bg7 29.Qxh4 Qe5 30.g5 Be8 31.Rf6 Rd8 32.Kh1 Nb4 33.Re6 Qc7 34.g6 Bxg6 35.
Rxg6 Rf8 36.e5 Qf7 37.Be4 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.21"]
[Round "13"]
[White "Taimanov, Mark"]
[Black "Rukavina, Josip"]
[Result "1-0"]
[WhiteElo "2595"]
[BlackElo "2460"]
[ECO "D31"]
[EventDate "1973.06.02"]
[PlyCount "81"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.cxd5 exd5 5.Bf4 c6 6.e3 Bf5 7.g4 Be6 8.h3 Nf6 
9.Bd3 Bd6 10.Nge2 h6 11.Qb3 Bc8 12.O-O-O Na6 13.Rde1 Nc7 14.Rhg1 Bxf4 15.
Nxf4 Qd6 16.g5 hxg5 17.Rxg5 Kf8 18.Reg1 Nce8 19.Nce2 b6 20.Kb1 Rh6 21.f3 
Nh7 22.R5g3 Be6 23.Qc2 Kg8 24.e4 dxe4 25.fxe4 Nf8 26.Qc3 f6 27.e5 Qe7 28.
Nxe6 Nxe6 29.Qxc6 Rd8 30.Bc4 fxe5 31.Rg6 Rd6 32.Qc8 Rxg6 33.Rxg6 Kf7 34.
Rxe6 Rxe6 35.dxe5 g5 36.Nd4 Ng7 37.a4 a6 38.Bd5 b5 39.a5 b4 40.Bb3 g4 41.
hxg4 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.21"]
[Round "13"]
[White "Tal, Mikhail"]
[Black "Byrne, Robert"]
[Result "1/2-1/2"]
[WhiteElo "2655"]
[BlackElo "2570"]
[ECO "B97"]
[EventDate "1973.06.02"]
[PlyCount "86"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 8.Qd2 
Qxb2 9.Nb3 Qa3 10.Bxf6 gxf6 11.Be2 h5 12.O-O Nc6 13.Kh1 Bd7 14.Qe3 Rc8 15.
Nb1 Qa4 16.c4 Na5 17.Qc3 Nxc4 18.Qxf6 Rh6 19.Qd4 Rh7 20.f5 exf5 21.Nc3 Bg7
22.Nxa4 Bxd4 23.Nxd4 Bxa4 24.Rac1 b5 25.Rxf5 Rc5 26.Bxc4 bxc4 27.Rxc5 dxc5
28.Rxc4 Bd7 29.Rxc5 Rh6 30.h3 Rd6 31.Nf3 Rd1+ 32.Kh2 Ra1 33.Ra5 Bb5 34.Nd4
Bf1 35.Nb3 Re1 36.Rf5 Bc4 37.Rxh5 Bxb3 38.axb3 Rxe4 39.Ra5 Re6 40.b4 Re4 
41.Rxa6 Rxb4 42.Ra8+ Ke7 43.Rg8 f5 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.21"]
[Round "13"]
[White "Tukmakov, Vladimir"]
[Black "Smejkal, Jan"]
[Result "0-1"]
[WhiteElo "2560"]
[BlackElo "2570"]
[ECO "D98"]
[EventDate "1973.06.02"]
[PlyCount "164"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Bg4 8.Be3 
Nfd7 9.Rd1 Nc6 10.Be2 Bxf3 11.gxf3 e5 12.dxe5 Ncxe5 13.Qa4 Qc8 14.a3 Nb6 
15.Qb3 Rd8 16.Rxd8+ Qxd8 17.O-O g5 18.Nb5 Ng6 19.Rd1 Qe7 20.a4 Nf4 21.Bf1 
Be5 22.Nd4 Bxd4 23.Rxd4 Rb8 24.Qd1 a5 25.Rd2 Re8 26.Bxb6 cxb6 27.Rd7 Qf6 
28.Rxb7 Ng6 29.Qd7 Rd8 30.Qf5 Qxf5 31.exf5 Nh4 32.f6 h6 33.Be2 Rd6 34.f4 
gxf4 35.f3 Rxf6 36.Rd7 Rc6 37.Rd4 Rc2 38.Kf2 Ng6 39.b4 Ra2 40.bxa5 bxa5 
41.Kf1 Kg7 42.h4 h5 43.Bd3 Ra3 44.Kf2 Nxh4 45.Rxf4 Rxd3 46.Rxh4 Kg6 47.Rc4
Ra3 48.Kg3 Kg5 49.Rc5+ f5 50.Rxa5 h4+ 51.Kg2 Ra2+ 52.Kh3 Rf2 53.Ra8 Rxf3+ 
54.Kg2 Rg3+ 55.Kh2 Ra3 56.Rg8+ Kf4 57.Rh8 Kg4 58.Rg8+ Kf3 59.Ra8 f4 60.a5 
Kf2 61.a6 f3 62.a7 Ra1 63.Kh3 Ra4 64.Kh2 Ra3 65.Kh1 Ra2 66.Kh2 Kf1+ 67.Kh1
f2 68.Kh2 h3 69.Kh1 Ra3 70.Kh2 Ra1 71.Rb8 Rxa7 72.Rb1+ Ke2 73.Rb2+ Ke3 74.
Rb3+ Ke4 75.Rb4+ Ke5 76.Rb5+ Ke6 77.Rb6+ Ke7 78.Rb1 Ra3 79.Rb7+ Ke6 80.
Rb6+ Ke5 81.Rb5+ Ke4 82.Rb4+ Kf3 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.22"]
[Round "14"]
[White "Byrne, Robert"]
[Black "Quinteros, Miguel Angel"]
[Result "1-0"]
[WhiteElo "2570"]
[BlackElo "2480"]
[ECO "B42"]
[EventDate "1973.06.02"]
[PlyCount "82"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Nf6 6.O-O Qc7 7.Nd2 d6 8.f4 e5 
9.fxe5 dxe5 10.Nf5 g6 11.Ne3 Bg7 12.a4 O-O 13.b3 Be6 14.Ba3 Rd8 15.Qe1 Nc6
16.Qh4 Qb6 17.Qf2 Bh6 18.Ndc4 Bxc4 19.Nxc4 Qxf2+ 20.Kxf2 Bf8 21.Bxf8 Kxf8 
22.h3 Kg7 23.Ke3 Nh5 24.Rf2 f6 25.c3 Ne7 26.a5 Rac8 27.Rd2 f5 28.Rad1 f4+ 
29.Kf3 Nc6 30.Be2 Rxd2 31.Rxd2 Nf6 32.b4 Nd8 33.Nxe5 Rxc3+ 34.Rd3 Rc8 35.
Kxf4 Ne6+ 36.Ke3 Ng5 37.Ng4 Ngxe4 38.Bf3 Rc4 39.Rd4 Rc3+ 40.Kf4 g5+ 41.Kf5
Ng3+ 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.22"]
[Round "14"]
[White "Cuellar Gacharna, Miguel"]
[Black "Larsen, Bent"]
[Result "0-1"]
[WhiteElo "2400"]
[BlackElo "2620"]
[ECO "E21"]
[EventDate "1973.06.02"]
[PlyCount "136"]

1.d4 Nf6 2.c4 b6 3.Nc3 Bb7 4.Nf3 e6 5.e3 Bb4 6.Bd2 O-O 7.a3 Bxc3 8.Bxc3 
Ne4 9.Rc1 d6 10.Bd3 Nd7 11.O-O f5 12.Bxe4 fxe4 13.Ne1 Qg5 14.Qe2 Nf6 15.f4
exf3 16.Nxf3 Qh5 17.d5 Rae8 18.Bxf6 Rxf6 19.dxe6 Rfxe6 20.Rc3 Qc5 21.Re1 
a5 22.Qd2 Rg6 23.Rf1 Rf8 24.Ne1 Rxf1+ 25.Kxf1 Qh5 26.Kg1 Be4 27.Rc1 Rh6 
28.h3 Qg5 29.Kh2 Qe5+ 30.Kg1 Qg3 31.Qf2 Rxh3 32.Qxg3 Rxg3 33.Kf2 Rg5 34.b4
Kf7 35.Nf3 Rf5 36.Kg3 Ke7 37.Nd2 Bb7 38.Nf3 h6 39.Rc2 Be4 40.Rd2 d5 41.c5 
bxc5 42.bxc5 Kd7 43.Nd4 Rf1 44.Rf2 Rxf2 45.Kxf2 h5 46.Kg3 g5 47.Kh3 a4 48.
Kg3 Bd3 49.Kf3 Ke7 50.Nc6+ Kf6 51.Nd4 Ba6 52.Nc6 Bc8 53.Nd4 Bd7 54.Nc2 h4 
55.Nb4 Ke5 56.Nd3+ Kf5 57.Nf2 Bc6 58.g4+ Kf6 59.Ke2 Bb5+ 60.Kf3 Bf1 61.Nd1
Ke5 62.Nc3 d4 63.exd4+ Kxd4 64.Nxa4 Bd3 65.Nb2 Bc2 66.a4 Kc3 67.a5 Kxb2 
68.a6 Ba4 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.22"]
[Round "14"]
[White "Estevez Morales, Guillermo"]
[Black "Hubner, Robert"]
[Result "1-0"]
[WhiteElo "2385"]
[BlackElo "2600"]
[ECO "C04"]
[EventDate "1973.06.02"]
[PlyCount "79"]

1.e4 e6 2.d4 d5 3.Nd2 Nc6 4.Ngf3 Nf6 5.e5 Nd7 6.Nb3 Be7 7.Bb5 a6 8.Bxc6 
bxc6 9.Na5 Nb8 10.O-O c5 11.c4 O-O 12.dxc5 Bxc5 13.Bg5 Qd7 14.Nb3 Ba7 15.
Rc1 Bb7 16.c5 f6 17.Bf4 Nc6 18.Re1 Rae8 19.Nbd4 Nd8 20.b4 c6 21.a4 Bb8 22.
Bg3 h6 23.h4 Qf7 24.Qd2 Qh5 25.b5 Rf7 26.Rb1 Bc7 27.Qd3 axb5 28.axb5 cxb5 
29.Qxb5 Rfe7 30.c6 Bc8 31.Ra1 fxe5 32.Bxe5 Bxe5 33.Rxe5 Qg6 34.Ra8 Rc7 35.
Qb6 Qf7 36.Re2 Qf4 37.g3 Rxc6 38.Qxc6 Qxf3 39.Qxc8 Qd3 40.Qc5 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.22"]
[Round "14"]
[White "Gligoric, Svetozar"]
[Black "Kuzmin, Gennady"]
[Result "1-0"]
[WhiteElo "2595"]
[BlackElo "2565"]
[ECO "E54"]
[EventDate "1973.06.02"]
[PlyCount "83"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Bd3 O-O 6.Nf3 d5 7.O-O dxc4 8.Bxc4 a6
9.Bd3 Nbd7 10.a4 cxd4 11.exd4 b6 12.Qe2 Bb7 13.Rd1 Re8 14.Bf4 Nf8 15.Ne5 
Nd5 16.Bd2 f6 17.Nc4 Be7 18.Nxd5 Qxd5 19.Qg4 f5 20.Qg3 Bh4 21.Qh3 Rad8 22.
Bc3 Ng6 23.Ne3 Qd6 24.d5 Qe7 25.Bc4 Nf4 26.Qf3 Nxd5 27.Bxd5 Bxd5 28.Nxd5 
Rxd5 29.Rxd5 exd5 30.g3 Bf6 31.Re1 Qd7 32.Rxe8+ Qxe8 33.Qxd5+ Kh8 34.Bxf6 
gxf6 35.Qxf5 Qc6 36.b3 Kg7 37.h4 a5 38.Kh2 Qd6 39.Qe4 Qc5 40.Kg2 Qd6 41.
Qg4+ Kh6 42.Qf5 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.22"]
[Round "14"]
[White "Radulov, Ivan"]
[Black "Taimanov, Mark"]
[Result "0-1"]
[WhiteElo "2510"]
[BlackElo "2595"]
[ECO "A04"]
[EventDate "1973.06.02"]
[PlyCount "112"]

1.e4 c5 2.Nf3 Nc6 3.d3 g6 4.g3 Bg7 5.Bg2 e6 6.O-O Nge7 7.c3 O-O 8.Be3 b6 
9.d4 cxd4 10.Nxd4 Bb7 11.Nxc6 Bxc6 12.Qd6 Nc8 13.Qd2 Qc7 14.Na3 Qb7 15.
Rfe1 b5 16.Bd4 e5 17.Be3 Nb6 18.b3 f5 19.c4 bxc4 20.Bxb6 axb6 21.Nxc4 f4 
22.a4 h5 23.Rad1 Kh7 24.h4 b5 25.Nd6 Qb6 26.gxf4 Rxf4 27.axb5 Bxb5 28.Qe3 
Qxe3 29.fxe3 Rg4 30.Ra1 Rxa1 31.Rxa1 Bc6 32.Rf1 Kg8 33.b4 Bf8 34.b5 Bxd6 
35.bxc6 dxc6 36.Kf2 Be7 37.Bf3 Bxh4+ 38.Ke2 Rg3 39.Rc1 Rh3 40.Rxc6 Rh2+ 
41.Kd3 Kg7 42.Rc5 Kf6 43.Rc6+ Kg5 44.Re6 Bg3 45.Bd1 Rf2 46.Ba4 Rf6 47.Re7 
Kg4 48.Rh7 Kf3 49.Rh6 Rd6+ 50.Kc4 Kxe3 51.Kc5 Rf6 52.Kd5 Bf4 53.Rh7 g5 54.
Rxh5 g4 55.Rxe5 Bxe5 56.Kxe5 Rf4 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.22"]
[Round "14"]
[White "Rukavina, Josip"]
[Black "Karpov, Anatoly"]
[Result "0-1"]
[WhiteElo "2460"]
[BlackElo "2645"]
[ECO "A32"]
[EventDate "1973.06.02"]
[PlyCount "97"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 c5 4.d4 cxd4 5.Nxd4 Bb4 6.Nc2 Bxc3+ 7.bxc3 Qa5 8.
Nb4 O-O 9.e3 b6 10.Be2 Bb7 11.O-O Rc8 12.f3 Nc6 13.Qb3 Qe5 14.Nxc6 Rxc6 
15.Bd2 Qc7 16.Qa4 a5 17.Rfb1 Ba6 18.Rb2 Bxc4 19.Bxc4 Rxc4 20.Qb5 Rc6 21.e4
d6 22.Qg5 Nd7 23.Qe7 Ne5 24.Qxc7 Rxc7 25.Rb5 Nc4 26.Bc1 Rac8 27.Rab1 Rc5 
28.Kf1 Kf8 29.Ke2 Ke7 30.R5b3 Kd7 31.a4 Kc7 32.Bf4 Kb7 33.Be3 R5c6 34.Bd4 
f6 35.Rd1 Rd8 36.f4 d5 37.Bf2 Rcd6 38.Bc5 Rc6 39.Bf2 Rdd6 40.exd5 Rxd5 41.
Rxd5 exd5 42.Rb5 Re6+ 43.Kd3 Kc6 44.g3 Re7 45.Rb1 Rb7 46.Rb5 Nd6 47.Rb2 b5
48.axb5+ Rxb5 49.Re2 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.22"]
[Round "14"]
[White "Smejkal, Jan"]
[Black "Korchnoi, Viktor"]
[Result "1/2-1/2"]
[WhiteElo "2570"]
[BlackElo "2635"]
[ECO "A29"]
[EventDate "1973.06.02"]
[PlyCount "40"]

1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.g3 Bb4 5.Bg2 O-O 6.Nd5 Nxd5 7.cxd5 Nd4 8.
Nxd4 exd4 9.O-O Bd6 10.e4 dxe3 11.dxe3 c5 12.Qc2 Be7 13.Bd2 d6 14.a4 Bf6 
15.Bc3 Re8 16.e4 Bd7 17.Rfe1 Bxc3 18.bxc3 Re7 19.a5 Qc7 20.c4 Rae8 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.22"]
[Round "14"]
[White "Torre, Eugenio"]
[Black "Tukmakov, Vladimir"]
[Result "1-0"]
[WhiteElo "2430"]
[BlackElo "2560"]
[ECO "C00"]
[EventDate "1973.06.02"]
[PlyCount "75"]

1.e4 c5 2.Nf3 e6 3.d3 Nc6 4.g3 d5 5.Qe2 Nge7 6.Bg2 g6 7.h4 h6 8.e5 Nd4 9.
Nxd4 cxd4 10.Nd2 Nc6 11.O-O Bd7 12.Nf3 Bg7 13.b3 Qc7 14.Re1 O-O-O 15.Bf4 
Kb8 16.a3 Rc8 17.Qd2 a6 18.b4 Bf8 19.Rec1 f6 20.c4 dxc3 21.Rxc3 g5 22.hxg5
hxg5 23.Be3 fxe5 24.Bxg5 Bg7 25.Re1 Rhf8 26.Bh6 Bxh6 27.Qxh6 Qd6 28.Rc5 
Rf5 29.Nh4 Rff8 30.Rxd5 Qe7 31.Ng6 Qf6 32.Rxd7 Qxf2+ 33.Kh2 Rf3 34.Qh3 Qd2
35.Nxe5 Nxe5 36.Rxe5 Rf2 37.Rxb7+ Ka8 38.Ra7+ 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.22"]
[Round "14"]
[White "Uhlmann, Wolfgang"]
[Black "Tal, Mikhail"]
[Result "1/2-1/2"]
[WhiteElo "2550"]
[BlackElo "2655"]
[ECO "A53"]
[EventDate "1973.06.02"]
[PlyCount "37"]

1.c4 e5 2.Nc3 d6 3.Nf3 Bg4 4.e3 Nf6 5.Be2 Be7 6.d4 Nbd7 7.O-O O-O 8.b3 Re8
9.Bb2 Bf8 10.dxe5 dxe5 11.Qc2 e4 12.Nd4 c5 13.Ndb5 a6 14.Na3 Qc7 15.Rad1 
Bxe2 16.Qxe2 Rad8 17.Nd5 Nxd5 18.Rxd5 Nb6 19.Rxd8 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.23"]
[Round "15"]
[White "Hubner, Robert"]
[Black "Cuellar Gacharna, Miguel"]
[Result "1-0"]
[WhiteElo "2600"]
[BlackElo "2400"]
[ECO "E62"]
[EventDate "1973.06.02"]
[PlyCount "107"]

1.Nf3 Nf6 2.g3 g6 3.c4 Bg7 4.Bg2 O-O 5.O-O d6 6.d4 Nc6 7.Nc3 e5 8.d5 Ne7 
9.e4 Ne8 10.Ng5 h6 11.Nh3 f5 12.f4 Nf6 13.fxe5 dxe5 14.Nf2 g5 15.Nd3 Nxe4 
16.Nxe4 fxe4 17.Bxe4 Bf5 18.Qe2 Bxe4 19.Qxe4 Rxf1+ 20.Kxf1 Qf8+ 21.Kg2 Qf5
22.Nf2 Qxe4+ 23.Nxe4 Nf5 24.b3 Nd6 25.Nxd6 cxd6 26.Ba3 Rd8 27.Rf1 g4 28.h3
gxh3+ 29.Kxh3 Rd7 30.Kg4 Bf8 31.Rf6 Rg7+ 32.Kh3 Rd7 33.Re6 a6 34.Kg4 b5 
35.cxb5 axb5 36.Bb4 Kf7 37.Kf5 Rd8 38.g4 Kg7 39.a3 Rd7 40.Rf6 Kg8 41.Rg6+ 
Kh7 42.Re6 Kg8 43.Bd2 Kh7 44.Re8 Rf7+ 45.Ke6 Kg6 46.a4 bxa4 47.bxa4 Rf6+ 
48.Kd7 Rf2 49.Be3 Rf3 50.Bb6 Kf7 51.a5 Ra3 52.Re6 Ra1 53.Kc6 Be7 54.Kb7 
1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.23"]
[Round "15"]
[White "Karpov, Anatoly"]
[Black "Radulov, Ivan"]
[Result "1/2-1/2"]
[WhiteElo "2645"]
[BlackElo "2510"]
[ECO "A37"]
[EventDate "1973.06.02"]
[PlyCount "78"]

1.c4 e5 2.Nc3 c5 3.g3 g6 4.Bg2 Bg7 5.Nf3 Ne7 6.O-O O-O 7.Ne1 Nbc6 8.Nc2 d6
9.Ne3 Be6 10.a3 Qd7 11.d3 Bh3 12.Ned5 Bxg2 13.Kxg2 Nxd5 14.Nxd5 Ne7 15.
Nxe7+ Qxe7 16.e4 f5 17.f3 h5 18.Bd2 Kh7 19.b4 Bh6 20.exf5 Rxf5 21.Bxh6 
Kxh6 22.Qd2+ Kg7 23.bxc5 dxc5 24.Rae1 Rd8 25.Re3 Rd4 26.Qe2 Qd6 27.Rb1 Rf7
28.a4 b6 29.Re1 Rd7 30.h4 Rxd3 31.Rxd3 Qxd3 32.Qxe5+ Kh7 33.Qe6 Qf5 34.
Qxf5 gxf5 35.Kf2 Kg7 36.a5 Rd4 37.axb6 axb6 38.Re6 Rxc4 39.Rxb6 f4 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.23"]
[Round "15"]
[White "Korchnoi, Viktor"]
[Black "Torre, Eugenio"]
[Result "1-0"]
[WhiteElo "2635"]
[BlackElo "2430"]
[ECO "A75"]
[EventDate "1973.06.02"]
[PlyCount "85"]

1.d4 c5 2.d5 g6 3.e4 d6 4.c4 Bg7 5.Nc3 Nf6 6.Nf3 O-O 7.Be2 e6 8.O-O exd5 
9.cxd5 a6 10.a4 Bg4 11.Bf4 Re8 12.Nd2 Bxe2 13.Qxe2 Nh5 14.Be3 Nd7 15.a5 
Qe7 16.Rac1 Rf8 17.g4 Nhf6 18.Bg5 b5 19.axb6 Nxb6 20.Qf3 h6 21.Bh4 Qe5 22.
Rcd1 Nfd7 23.Kh1 Rfe8 24.Bg3 Qe7 25.Rfe1 Ne5 26.Qe2 c4 27.f4 Nd3 28.Nxc4 
Nxc4 29.Rxd3 Rab8 30.Rf3 Rec8 31.Nd1 Nxb2 32.e5 Nxd1 33.Rxd1 Rb5 34.e6 Rb2
35.Qxa6 Rcc2 36.f5 gxf5 37.Qxd6 Qxd6 38.Bxd6 fxe6 39.dxe6 Bf8 40.Be5 fxg4 
41.Rg1 h5 42.Bxb2 Rxb2 43.Re3 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.23"]
[Round "15"]
[White "Kuzmin, Gennady"]
[Black "Rukavina, Josip"]
[Result "1-0"]
[WhiteElo "2565"]
[BlackElo "2460"]
[ECO "C95"]
[EventDate "1973.06.02"]
[PlyCount "81"]

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.d5 c4 15.Nf1 Bf8 
16.Ng3 g6 17.Be3 Nc5 18.Qd2 Rb8 19.Ra3 Bg7 20.Rea1 Bc8 21.axb5 axb5 22.Qe1
Bb7 23.Ra7 Nfd7 24.R1a5 Qb6 25.Qa1 Bf6 26.Qa3 Bd8 27.Qb4 Ba6 28.Rxd7 Qxa5 
29.Qxa5 Bxa5 30.Rxd6 Bc7 31.Rc6 Rbc8 32.Bxc5 Bb7 33.Rxc7 Rxc7 34.Bd6 Rcc8 
35.Bxe5 Ra8 36.Bc7 Ra2 37.Nd4 Rxb2 38.Nf1 Ra8 39.Ne3 Ra3 40.d6 Bc8 41.Nd5 
1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.23"]
[Round "15"]
[White "Larsen, Bent"]
[Black "Byrne, Robert"]
[Result "0-1"]
[WhiteElo "2620"]
[BlackElo "2570"]
[ECO "E81"]
[EventDate "1973.06.02"]
[PlyCount "62"]

1.c4 g6 2.d4 Nf6 3.Nc3 Bg7 4.e4 d6 5.f3 a6 6.Be3 c6 7.c5 O-O 8.Nge2 Nbd7 
9.Nc1 b5 10.Be2 dxc5 11.dxc5 Ne5 12.Qc2 Be6 13.O-O Bc4 14.Rd1 Qc7 15.b3 
Bxe2 16.N1xe2 Rfd8 17.h3 Rxd1+ 18.Rxd1 Rd8 19.f4 Rxd1+ 20.Qxd1 Ned7 21.e5 
Ne8 22.b4 Nb8 23.a4 Qd7 24.Nd4 Nc7 25.Qb3 g5 26.fxg5 Bxe5 27.Nf3 Bxc3 28.
Qxc3 Qd1+ 29.Kh2 Nd5 30.Qe5 Nd7 31.Qe4 Qe2 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.23"]
[Round "15"]
[White "Quinteros, Miguel Angel"]
[Black "Uhlmann, Wolfgang"]
[Result "0-1"]
[WhiteElo "2480"]
[BlackElo "2550"]
[ECO "A48"]
[EventDate "1973.06.02"]
[PlyCount "118"]

1.Nf3 g6 2.d4 Nf6 3.Bf4 Bg7 4.Nbd2 O-O 5.e4 d6 6.Be2 Nbd7 7.c3 Nh5 8.Be3 
e5 9.Qc2 Qe8 10.Ng1 f5 11.g4 fxg4 12.Bxg4 Nf4 13.Bf3 exd4 14.cxd4 c5 15.
Ne2 Ne6 16.dxc5 Ne5 17.Bg2 dxc5 18.Nc4 Nxc4 19.Qxc4 Bxb2 20.Rb1 Bg7 21.f4 
Rb8 22.a4 Kh8 23.O-O b6 24.e5 Nc7 25.Nc3 Ba6 26.Nb5 Nxb5 27.axb5 Bb7 28.
Rbe1 Bxg2 29.Kxg2 Rd8 30.Re2 Qe7 31.e6 Rd6 32.Bf2 Bd4 33.Bg3 Rf5 34.Qb3 
Kg7 35.Rfe1 h5 36.h3 Bf6 37.Qa4 Rd4 38.Qb3 h4 39.Bh2 Qb7+ 40.Qf3 Qxf3+ 41.
Kxf3 Be7 42.Ra2 Kf6 43.Rxa7 c4 44.Re5 Rxe5 45.fxe5+ Kxe6 46.Bg1 Rd5 47.
Bxb6 Rxb5 48.Bd4 Bc5 49.Ra6+ Kf5 50.Rf6+ Kg5 51.Ke4 Bxd4 52.Kxd4 Rb3 53.
Rf1 Rxh3 54.e6 Rd3+ 55.Kxc4 Re3 56.Kd5 h3 57.Kd6 Kh4 58.Rf8 h2 59.e7 Kg3 
0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.23"]
[Round "15"]
[White "Taimanov, Mark"]
[Black "Smejkal, Jan"]
[Result "0-1"]
[WhiteElo "2595"]
[BlackElo "2570"]
[ECO "E66"]
[EventDate "1973.06.02"]
[PlyCount "94"]

1.c4 Nf6 2.Nc3 c5 3.Nf3 Nc6 4.g3 g6 5.Bg2 Bg7 6.O-O O-O 7.d4 d6 8.d5 Na5 
9.Nd2 a6 10.Qc2 Rb8 11.b3 b5 12.Bb2 bxc4 13.bxc4 Bh6 14.e3 Bf5 15.e4 Bxd2 
16.Nd1 Bd7 17.Bxf6 exf6 18.Qxd2 Nxc4 19.Qc3 Nb6 20.Re1 Na4 21.Qd2 Kg7 22.
Rc1 Rb4 23.Ne3 Bb5 24.Nc2 Rb2 25.a3 c4 26.Qd4 Qb6 27.Qxb6 Nxb6 28.Bf1 Rc8 
29.Nd4 Rc5 30.Kg2 c3 31.Nxb5 axb5 32.Bd3 Ra2 33.Ra1 Rd2 34.Red1 Rxd1 35.
Rxd1 Nc4 36.Ra1 Nb2 37.Bc2 f5 38.Kf3 Nc4 39.Ke2 fxe4 40.Bxe4 f5 41.Bd3 Nb2
42.Rc1 Kf6 43.f4 Rxd5 44.Bb1 Rd2+ 45.Kf3 Nd1 46.g4 fxg4+ 47.Kg3 d5 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.23"]
[Round "15"]
[White "Tal, Mikhail"]
[Black "Gligoric, Svetozar"]
[Result "1-0"]
[WhiteElo "2655"]
[BlackElo "2595"]
[ECO "C95"]
[EventDate "1973.06.02"]
[PlyCount "84"]

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 c5 13.Nf1 Re8 14.Ng3 Bf8 15.d5 g6 
16.b3 Nb6 17.Be3 Bc8 18.a4 bxa4 19.bxa4 Nc4 20.Bg5 Bg7 21.Qe2 Na5 22.Qd2 
Rb8 23.Reb1 Rxb1+ 24.Rxb1 Bd7 25.c4 Nxc4 26.Qd3 Na5 27.Qxa6 Bc8 28.Qa7 Re7
29.Qa8 Qc7 30.Nd2 c4 31.Be3 Nd7 32.Rb5 Nb7 33.a5 c3 34.Nb3 Re8 35.a6 Nbc5 
36.a7 Nb7 37.Ne2 Rf8 38.Nec1 f5 39.f3 Bf6 40.exf5 Kg7 41.fxg6 hxg6 42.Nd3 
Bh4 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.23"]
[Round "15"]
[White "Tukmakov, Vladimir"]
[Black "Estevez Morales, Guillermo"]
[Result "1/2-1/2"]
[WhiteElo "2560"]
[BlackElo "2385"]
[ECO "B36"]
[EventDate "1973.06.02"]
[PlyCount "145"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Nf6 6.Nc3 Nxd4 7.Qxd4 d6 8.Bg5 
Bg7 9.Be2 O-O 10.Qd2 Be6 11.Rc1 Qa5 12.f3 Rfc8 13.Nd5 Qd8 14.Nxf6+ exf6 
15.Be3 f5 16.exf5 Bxf5 17.O-O Qe7 18.Bf2 Re8 19.Rce1 Qf6 20.Bd3 Bxd3 21.
Qxd3 Qxb2 22.Rb1 Qxa2 23.Rxb7 Re2 24.Qd5 Rf8 25.Rxa7 Qc2 26.Ra8 Rd2 27.
Rxf8+ Bxf8 28.Qe4 Qa2 29.g4 Rc2 30.Bg3 Rxc4 31.Qd3 Rc2 32.Rd1 h6 33.Kh1 
Rc6 34.Rd2 Qa5 35.Kg2 Rc3 36.Qd4 Rc4 37.Qd3 Rc3 38.Qd4 Qa3 39.Bxd6 Bxd6 
40.Qxd6 Rxf3 41.Qxa3 Rxa3 42.Rd6 Kg7 43.Rb6 Ra5 44.Kg3 h5 45.h3 Ra3+ 46.
Kg2 h4 47.Rb7 Re3 48.Ra7 Rg3+ 49.Kh2 Kf6 50.Ra6+ Kg5 51.Ra5+ Kh6 52.Ra7 
Kg7 53.Rb7 Re3 54.Kg2 Re2+ 55.Kg1 Rd2 56.Ra7 Kf6 57.Rb7 Ke6 58.Ra7 f6 59.
Rg7 g5 60.Ra7 Ke5 61.Ra4 Re2 62.Kf1 Re3 63.Kg2 Rg3+ 64.Kh2 Rc3 65.Kg2 Rc2+
66.Kg1 Kd5 67.Kf1 Rc3 68.Kg2 Rc4 69.Ra6 Ke5 70.Ra5+ Ke4 71.Ra6 Rc2+ 72.Kg1
Rc3 73.Kg2 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.25"]
[Round "16"]
[White "Cuellar Gacharna, Miguel"]
[Black "Byrne, Robert"]
[Result "0-1"]
[WhiteElo "2400"]
[BlackElo "2570"]
[ECO "E63"]
[EventDate "1973.06.02"]
[PlyCount "108"]

1.Nf3 Nf6 2.g3 g6 3.c4 Bg7 4.Bg2 O-O 5.O-O d6 6.d4 Nc6 7.Nc3 Rb8 8.h3 a6 
9.Be3 b5 10.cxb5 axb5 11.d5 Na5 12.Nd4 b4 13.Ncb5 e5 14.dxe6 c5 15.exf7+ 
Rxf7 16.Nc6 Nxc6 17.Bxc6 Rb6 18.Nxd6 Rxc6 19.Nxf7 Qxd1 20.Rfxd1 Kxf7 21.
Rac1 Bf8 22.Kg2 Be6 23.b3 Nd5 24.Bd2 Bg7 25.e4 Nc3 26.Bxc3 bxc3 27.Rd8 Bf6
28.Rdd1 Rb6 29.f4 Bd4 30.g4 Bc8 31.Kf3 Bb7 32.Rc2 Rb4 33.Re2 Ke6 34.g5 Bc6
35.h4 Rb8 36.Kg4 Rf8 37.Kg3 Rh8 38.Kg4 h5+ 39.Kg3 Rf8 40.f5+ Ke5 41.f6 Bb5
42.Rg2 Kxe4 43.Re1+ Kd5 44.Kf4 Bd3 45.Rd1 c2 46.Rc1 Re8 47.Rcxc2 Re4+ 48.
Kf3 Re3+ 49.Kf4 Rh3 50.Rce2 Rxh4+ 51.Kf3 Bxe2+ 52.Rxe2 Be5 53.a4 Rh3+ 54.
Kf2 Rxb3 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.25"]
[Round "16"]
[White "Estevez Morales, Guillermo"]
[Black "Korchnoi, Viktor"]
[Result "0-1"]
[WhiteElo "2385"]
[BlackElo "2635"]
[ECO "C08"]
[EventDate "1973.06.02"]
[PlyCount "77"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 exd5 5.Ngf3 a6 6.dxc5 Bxc5 7.Nb3 Ba7 8.Be2
Nf6 9.O-O Nc6 10.Bg5 O-O 11.c3 Re8 12.Nbd4 Qd6 13.Bxf6 Qxf6 14.Bd3 Bg4 15.
Qd2 Kh8 16.Bc2 g6 17.Rae1 Kg7 18.Bb3 Bxf3 19.Nxf3 d4 20.cxd4 Nxd4 21.Nxd4 
Bxd4 22.g3 Bxb2 23.Qd7 Rxe1 24.Rxe1 Bd4 25.Re2 b5 26.Rd2 Bb6 27.Qb7 Rd8 
28.Re2 Re8 29.Rd2 a5 30.Kg2 Re7 31.Qd5 a4 32.Bd1 Re5 33.Qd6 Re6 34.Qd5 Qc3
35.Bg4 Rf6 36.Bd7 Bc5 37.Re2 Rd6 38.Qb7 Rb6 39.Qc7 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.25"]
[Round "16"]
[White "Gligoric, Svetozar"]
[Black "Quinteros, Miguel Angel"]
[Result "1/2-1/2"]
[WhiteElo "2595"]
[BlackElo "2480"]
[ECO "E92"]
[EventDate "1973.06.02"]
[PlyCount "117"]

1.d4 Nf6 2.c4 c5 3.d5 g6 4.Nc3 d6 5.e4 Bg7 6.Nf3 O-O 7.Be2 e5 8.O-O Ne8 9.
Ne1 f5 10.Nd3 Nd7 11.f4 Qe7 12.exf5 gxf5 13.Kh1 e4 14.Ne1 Ndf6 15.Nc2 Qf7 
16.Ne3 Qg6 17.Qe1 h5 18.Ncd1 Ng4 19.Rb1 Bd4 20.b4 Rf7 21.Rb3 Rg7 22.Bxg4 
hxg4 23.Nc2 Bf6 24.Bb2 Bxb2 25.Rxb2 cxb4 26.Qxb4 Nc7 27.g3 Na6 28.Qa3 Nc5 
29.Nce3 Rc7 30.Qa5 Qg7 31.h3 gxh3 32.Rh2 b6 33.Qd2 Qg6 34.Nf2 Rg7 35.Rxh3 
Bd7 36.Rg1 Kf7 37.Qd4 Rag8 38.Rh4 Rh7 39.Nh3 Rxh4 40.gxh4 Qh6 41.Rxg8 Kxg8
42.Ng2 Qg7 43.Qxg7+ Kxg7 44.Ne3 Nd3 45.a3 Kg6 46.Kg2 Ne1+ 47.Kg3 Nf3 48.
Ng5 Nd4 49.Kf2 a5 50.Ke1 b5 51.cxb5 Nxb5 52.Nc4 Nc7 53.Nb6 Be8 54.Kf2 Kf6 
55.a4 Ke7 56.Nc8+ Kd7 57.Nb6+ Ke7 58.Nc8+ Kd7 59.Nb6+ 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.25"]
[Round "16"]
[White "Hubner, Robert"]
[Black "Tukmakov, Vladimir"]
[Result "1/2-1/2"]
[WhiteElo "2600"]
[BlackElo "2560"]
[ECO "D79"]
[EventDate "1973.06.02"]
[PlyCount "92"]

1.c4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O c6 6.d4 d5 7.cxd5 cxd5 8.Ne5 
Bf5 9.Nc3 Ne4 10.Qb3 Nc6 11.Rd1 Nxc3 12.bxc3 Qc7 13.Bxd5 Nxe5 14.dxe5 Qxe5
15.Bf4 Qxc3 16.Qxb7 Qa3 17.Rac1 Rac8 18.Rxc8 Rxc8 19.Bb3 h6 20.Kg2 g5 21.
Bd6 Qb2 22.Qxe7 Bg6 23.Bb4 Bf6 24.Qe3 Rc7 25.Bd6 Rc8 26.Be7 Bg7 27.Bd8 Kh7
28.Qe7 Rxd8 29.Rxd8 Bf6 30.Rd2 Qxd2 31.Qxf6 Qxe2 32.Bxf7 Qe4+ 33.f3 Qc2+ 
34.Kh3 Bf5+ 35.g4 Bd3 36.Kg3 Qc5 37.Bg8+ Kxg8 38.Qd8+ Kf7 39.Qxd3 Qg1+ 40.
Kh3 Qf2 41.a4 a5 42.Qd5+ Ke7 43.Qe5+ Kd7 44.Qb5+ Ke7 45.Qb7+ Kd8 46.Qb8+ 
Kd7 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.25"]
[Round "16"]
[White "Radulov, Ivan"]
[Black "Kuzmin, Gennady"]
[Result "1/2-1/2"]
[WhiteElo "2510"]
[BlackElo "2565"]
[ECO "C47"]
[EventDate "1973.06.02"]
[PlyCount "19"]

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Nf6 5.Nc3 Bb4 6.Nxc6 bxc6 7.Bd3 d5 8.
exd5 Qe7+ 9.Qe2 Qxe2+ 10.Kxe2 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.25"]
[Round "16"]
[White "Rukavina, Josip"]
[Black "Tal, Mikhail"]
[Result "1-0"]
[WhiteElo "2460"]
[BlackElo "2655"]
[ECO "A49"]
[EventDate "1973.06.02"]
[PlyCount "82"]

1.Nf3 Nf6 2.g3 g6 3.b3 a5 4.Bb2 Bg7 5.Bg2 d6 6.d4 c6 7.O-O O-O 8.Nbd2 a4 
9.a3 Nbd7 10.Rb1 Qc7 11.Re1 e5 12.e4 Re8 13.h3 b5 14.b4 Nb6 15.dxe5 dxe5 
16.Bf1 Ba6 17.c4 Nxc4 18.Nxc4 bxc4 19.Qc2 c3 20.Qxc3 Bxf1 21.Kxf1 Qb7 22.
Qc4 Nd7 23.Red1 Nb6 24.Qe2 h6 25.Rbc1 Re6 26.Ne1 Nd7 27.Qd3 Nf8 28.Qc2 h5 
29.Nd3 Nd7 30.Qe2 Bf8 31.Rc2 Qb5 32.Bc1 Rd6 33.Be3 Rd8 34.Nb2 Nf6 35.Rxd6 
Bxd6 36.f3 Be7 37.Qxb5 cxb5 38.Ke2 Nd7 39.Nd3 Bd6 40.Rc6 Bb8 41.Nc5 Nf8 
1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.25"]
[Round "16"]
[White "Smejkal, Jan"]
[Black "Karpov, Anatoly"]
[Result "0-1"]
[WhiteElo "2570"]
[BlackElo "2645"]
[ECO "B49"]
[EventDate "1973.06.02"]
[PlyCount "144"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be2 a6 7.O-O Nf6 8.Be3 
Bb4 9.Na4 O-O 10.Nxc6 bxc6 11.Nb6 Rb8 12.Nxc8 Rfxc8 13.Bxa6 Rd8 14.Bd3 Bd6
15.Kh1 Be5 16.c3 Rxb2 17.Qc1 Ng4 18.f4 Nxe3 19.Qxb2 Bxf4 20.Qf2 Nxf1 21.
Rxf1 e5 22.g3 Qd6 23.Be2 Bg5 24.Qxf7+ Kh8 25.a4 Be7 26.a5 Rf8 27.Qc4 Rxf1+
28.Bxf1 Qf6 29.Kg2 Qf8 30.Be2 Bc5 31.Bg4 Qf2+ 32.Kh3 d6 33.Bd7 g6 34.Bxc6 
Kg7 35.Bb5 Qb2 36.a6 Bg1 37.Qe2 Qxc3 38.Bc4 Qc1 39.Qf1 Qh6+ 40.Kg2 Qxh2+ 
41.Kf3 Qh5+ 42.Kg2 Qh2+ 43.Kf3 Bd4 44.Bd5 Bc5 45.Bc6 Bd4 46.Bb7 g5 47.Kg4 
h5+ 48.Kf5 Qxg3 49.Ke6 Qf2 50.Qb5 Qf6+ 51.Kd5 g4 52.Bc8 Qe7 53.Bf5 Kh6 54.
Qf1 Qc7 55.Qe2 Qc5+ 56.Ke6 Kg5 57.Qf1 Qa3 58.Qe2 Bc5 59.Qd2+ Qe3 60.Qa5 
Bb6 61.Qa2 Qf2 62.Qb1 g3 63.Bh3 Kh4 64.Bg2 Qg1 65.Qxg1 Bxg1 66.Kxd6 Bd4 
67.a7 Bxa7 68.Kxe5 Kg4 69.Kd5 h4 70.e5 h3 71.Bxh3+ Kxh3 72.e6 Bc5 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.25"]
[Round "16"]
[White "Torre, Eugenio"]
[Black "Taimanov, Mark"]
[Result "1/2-1/2"]
[WhiteElo "2430"]
[BlackElo "2595"]
[ECO "A04"]
[EventDate "1973.06.02"]
[PlyCount "105"]

1.e4 c5 2.Nf3 e6 3.d3 Nc6 4.g3 g6 5.Bg2 Bg7 6.O-O Nge7 7.Re1 d6 8.c3 O-O 
9.Na3 Rb8 10.d4 cxd4 11.cxd4 b5 12.Nc2 Na5 13.Bf4 Bb7 14.b3 Rc8 15.Rc1 h6 
16.h4 Kh7 17.Qd3 a6 18.Bh3 Qb6 19.h5 Rfe8 20.e5 Bxf3 21.Qxf3 d5 22.Bf1 
Nac6 23.Be3 Kg8 24.hxg6 fxg6 25.Bd3 Nf5 26.Bxf5 gxf5 27.Qh5 Qb7 28.Bxh6 
Bxh6 29.Qxh6 Qg7 30.Qf4 Kf7 31.Kg2 Ke7 32.Rh1 Kd7 33.Ne3 Ne7 34.Rxc8 Rxc8 
35.Rh5 Rh8 36.Rxh8 Qxh8 37.Qh4 Qc8 38.Qf4 Qc3 39.g4 fxg4 40.Qxg4 Qb2 41.
Qh4 Qxa2 42.Qh8 Qd2 43.Qb8 Qxd4 44.Qd6+ Ke8 45.Qxe6 Qe4+ 46.Kg3 a5 47.Ng4 
Qg6 48.Qxg6+ Nxg6 49.Nf6+ Kf7 50.Nxd5 Nxe5 51.Kf4 Nd3+ 52.Ke3 Nc5 53.b4 
1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.25"]
[Round "16"]
[White "Uhlmann, Wolfgang"]
[Black "Larsen, Bent"]
[Result "0-1"]
[WhiteElo "2550"]
[BlackElo "2620"]
[ECO "A21"]
[EventDate "1973.06.02"]
[PlyCount "77"]

1.c4 f5 2.Nc3 Nf6 3.g3 e5 4.Bg2 c6 5.d4 e4 6.Nh3 Na6 7.O-O Nc7 8.f3 d5 9.
cxd5 cxd5 10.Bg5 Be7 11.Nf4 Ne6 12.Qa4+ Kf7 13.Nxe6 Bxe6 14.fxe4 dxe4 15.
Kh1 h5 16.Rad1 Kg6 17.h4 Qd6 18.Rf4 Rhc8 19.Bh3 Rxc3 20.bxc3 Nd5 21.Bxe7 
Qxe7 22.Rdf1 Nxf4 23.Rxf4 Qc7 24.d5 Bd7 25.Qb4 Re8 26.Rf1 b6 27.Kh2 Kf6 
28.c4 g6 29.e3 Rc8 30.Rc1 Qe5 31.Bf1 Rc5 32.Qa3 g5 33.Qxa7 Qd6 34.Rb1 b5 
35.hxg5+ Kxg5 36.Kg2 h4 37.gxh4+ Kxh4 38.Kf2 bxc4 39.Qb8 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.27"]
[Round "17"]
[White "Byrne, Robert"]
[Black "Uhlmann, Wolfgang"]
[Result "1/2-1/2"]
[WhiteElo "2570"]
[BlackElo "2550"]
[ECO "C09"]
[EventDate "1973.06.02"]
[PlyCount "25"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 exd5 5.Ngf3 Nc6 6.Bb5 Bd6 7.dxc5 Bxc5 8.
Nb3 Bd6 9.O-O Ne7 10.Bg5 O-O 11.Bh4 Bg4 12.Be2 Re8 13.Re1 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.27"]
[Round "17"]
[White "Karpov, Anatoly"]
[Black "Torre, Eugenio"]
[Result "1-0"]
[WhiteElo "2645"]
[BlackElo "2430"]
[ECO "B04"]
[EventDate "1973.06.02"]
[PlyCount "47"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 g6 5.Bc4 Nb6 6.Bb3 Bg7 7.Ng5 d5 8.f4 Nc6 
9.c3 f6 10.Nf3 Bf5 11.O-O Qd7 12.Nbd2 fxe5 13.fxe5 O-O 14.Rf2 Na5 15.Bc2 
Bxc2 16.Qxc2 Qf5 17.Qd1 e6 18.Nf1 c5 19.h3 cxd4 20.cxd4 Nc6 21.b3 Nd7 22.
Ba3 Rf7 23.g4 Qe4 24.Ng5 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.27"]
[Round "17"]
[White "Korchnoi, Viktor"]
[Black "Hubner, Robert"]
[Result "1-0"]
[WhiteElo "2635"]
[BlackElo "2600"]
[ECO "B37"]
[EventDate "1973.06.02"]
[PlyCount "76"]

1.c4 Nf6 2.Nc3 c5 3.Nf3 g6 4.e4 Bg7 5.d4 cxd4 6.Nxd4 Nc6 7.Nc2 d6 8.Be2 
Nd7 9.Bd2 Nc5 10.b4 Ne6 11.Rc1 O-O 12.Nd5 Ned4 13.Nxd4 Nxd4 14.Bg5 Re8 15.
O-O Be6 16.Re1 Nxe2+ 17.Rxe2 Qd7 18.Rd2 Bxd5 19.Rxd5 Qe6 20.Qd3 Rac8 21.
Be3 a6 22.h3 Rf8 23.g4 Qf6 24.Bg5 Qb2 25.a3 Rc7 26.c5 Rfc8 27.Kg2 Bf8 28.
cxd6 exd6 29.Rxc7 Rxc7 30.e5 Rc2 31.Bd2 dxe5 32.Rd8 Kg7 33.Qe3 Be7 34.Qh6+
Kf6 35.Qh4+ Ke6 36.Re8 Rxd2 37.Qxe7+ Kd5 38.Rd8+ Kc6 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.27"]
[Round "17"]
[White "Kuzmin, Gennady"]
[Black "Smejkal, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2565"]
[BlackElo "2570"]
[ECO "C48"]
[EventDate "1973.06.02"]
[PlyCount "17"]

1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Nd4 5.Nxd4 exd4 6.e5 dxc3 7.exf6 Qxf6 8.
dxc3 Qe5+ 9.Qe2 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.27"]
[Round "17"]
[White "Larsen, Bent"]
[Black "Gligoric, Svetozar"]
[Result "0-1"]
[WhiteElo "2620"]
[BlackElo "2595"]
[ECO "E70"]
[EventDate "1973.06.02"]
[PlyCount "56"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nge2 O-O 6.Bg5 h6 7.Be3 Ng4 8.Bc1 c5 
9.d5 e6 10.h3 Ne5 11.Nf4 exd5 12.exd5 Re8 13.Be3 Nbd7 14.Be2 Nf6 15.Qb3 
Bf5 16.O-O-O b5 17.cxb5 g5 18.Nh5 Nxh5 19.Bxh5 Nd3+ 20.Kd2 a6 21.b6 Rb8 
22.Na4 Nxb2 23.Rb1 c4 24.Qb4 a5 25.Qxb2 Bxb2 26.Rxb2 c3+ 27.Kxc3 Bd7 28.
Kb3 Re4 0-1

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.27"]
[Round "17"]
[White "Quinteros, Miguel Angel"]
[Black "Rukavina, Josip"]
[Result "1/2-1/2"]
[WhiteElo "2480"]
[BlackElo "2460"]
[ECO "E04"]
[EventDate "1973.06.02"]
[PlyCount "93"]

1.Nf3 d5 2.g3 c5 3.Bg2 Nc6 4.d4 e6 5.O-O Nf6 6.c4 dxc4 7.Qa4 Bd7 8.Qxc4 
cxd4 9.Nxd4 Rc8 10.Nxc6 Bxc6 11.Bxc6+ Rxc6 12.Qa4 a6 13.Nc3 Qb6 14.Bg5 Be7
15.Ne4 Nxe4 16.Bxe7 Nxg3 17.hxg3 Kxe7 18.Rad1 Rd8 19.Qh4+ f6 20.Qxh7 Kf7 
21.Qh5+ Kg8 22.e4 Rcd6 23.Rxd6 Qxd6 24.Rc1 e5 25.Kg2 Qd7 26.Rh1 b5 27.Qg6 
Qe8 28.Qh7+ Kf7 29.Rc1 Qd7 30.Rc5 Rc8 31.Rd5 Qg4 32.Rd6 Rc4 33.Rxa6 Qxe4+ 
34.Qxe4 Rxe4 35.Ra5 Rb4 36.b3 g5 37.Kf3 g4+ 38.Ke3 Ke6 39.Ra6+ Kf5 40.Rd6 
Re4+ 41.Kd2 b4 42.a4 bxa3 43.Ra6 Rd4+ 44.Ke2 Re4+ 45.Kf1 Rd4 46.Ke2 Re4+ 
47.Kf1 1/2-1/2

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.27"]
[Round "17"]
[White "Taimanov, Mark"]
[Black "Estevez Morales, Guillermo"]
[Result "1-0"]
[WhiteElo "2595"]
[BlackElo "2385"]
[ECO "E21"]
[EventDate "1973.06.02"]
[PlyCount "93"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3 O-O 5.Bg5 c5 6.e3 Qa5 7.Bxf6 Bxc3+ 8.bxc3
Qxc3+ 9.Nd2 gxf6 10.Rc1 Qa5 11.Qg4+ Kh8 12.Qh4 cxd4 13.Qxf6+ Kg8 14.exd4 
Qd8 15.Qf4 Nc6 16.Rc3 Ne7 17.h4 f6 18.Rg3+ Kh8 19.Bd3 Rf7 20.h5 Nf5 21.
Bxf5 exf5 22.O-O d6 23.Re1 Bd7 24.Qxd6 Qa5 25.Re7 Qxd2 26.Qxd7 Qe1+ 27.
Rxe1 Rxd7 28.d5 b5 29.cxb5 Rxd5 30.a4 f4 31.Rg4 Rxh5 32.Rxf4 Kg7 33.Re7+ 
Kg6 34.Rg4+ Kf5 35.Rgg7 Rh4 36.Rxa7 Rxa4 37.Rxa8 Rxa8 38.Rxh7 Ra2 39.b6 
Rb2 40.b7 Kf4 41.Re7 f5 42.Kf1 Kg5 43.Ke1 Kf6 44.Rh7 Ke5 45.Kd1 Kd4 46.
Rd7+ Kc3 47.g3 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.27"]
[Round "17"]
[White "Tal, Mikhail"]
[Black "Radulov, Ivan"]
[Result "1-0"]
[WhiteElo "2655"]
[BlackElo "2510"]
[ECO "B61"]
[EventDate "1973.06.02"]
[PlyCount "82"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 Bd7 7.Qd2 Nxd4 8.
Qxd4 Qa5 9.Bd2 e5 10.Qd3 Rc8 11.O-O-O a6 12.a3 Be6 13.f3 Qc7 14.Kb1 Nd7 
15.Be3 Be7 16.h4 O-O 17.g3 b5 18.f4 Nc5 19.Bxc5 Qxc5 20.f5 Bc4 21.Qd2 d5 
22.Bxc4 d4 23.Bxf7+ Rxf7 24.Nd5 Bf8 25.g4 Rd7 26.g5 a5 27.Qd3 a4 28.h5 
Rxd5 29.exd5 b4 30.h6 gxh6 31.Rxh6 bxa3 32.Rc6 Rxc6 33.dxc6 Qxc6 34.bxa3 
Qd5 35.f6 Bc5 36.g6 e4 37.Qb5 d3 38.Qe8+ Bf8 39.gxh7+ Kxh7 40.Rh1+ Bh6 41.
Qe7+ Kg6 1-0

[Event "interzonal"]
[Site "Leningrad URS"]
[Date "1973.06.27"]
[Round "17"]
[White "Tukmakov, Vladimir"]
[Black "Cuellar Gacharna, Miguel"]
[Result "1-0"]
[WhiteElo "2560"]
[BlackElo "2400"]
[ECO "B69"]
[EventDate "1973.06.02"]
[PlyCount "57"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
Bd7 9.f4 Be7 10.Nf3 b5 11.Bxf6 gxf6 12.g3 b4 13.Ne2 Qb6 14.Kb1 a5 15.f5 
Rc8 16.fxe6 fxe6 17.Bh3 O-O 18.Nf4 Ne5 19.Nd4 Nc4 20.Qe2 f5 21.exf5 Bf6 
22.fxe6 Bxd4 23.Nd5 Qb5 24.Rhe1 Bxb2 25.exd7 Na3+ 26.Kxb2 Rxc2+ 27.Qxc2 
Nxc2 28.Re8 Na3 29.d8=Q 1-0

