[Event "interzonal play-off"]
[Site "Portoroz YUG"]
[Date "1973.09.05"]
[Round "1"]
[White "Geller, Efim"]
[Black "Polugaevsky, Lev"]
[Result "0-1"]
[WhiteElo "2605"]
[BlackElo "2625"]
[ECO "B96"]
[EventDate "1973.09.04"]
[PlyCount "76"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Nbd7 8.Qf3 
Qc7 9.O-O-O b5 10.Bd3 Bb7 11.Rhe1 Qb6 12.Nxe6 fxe6 13.Qh3 e5 14.Nd5 Bxd5 
15.exd5 O-O-O 16.Bf5 Kc7 17.Re3 b4 18.fxe5 dxe5 19.Bxd7 Rxd7 20.Rxe5 Bd6 
21.Re6 Rf8 22.Kb1 Nxd5 23.Qb3 Rf5 24.Bh4 Qb5 25.Ree1 Re5 26.Bg3 Rxe1 27.
Rxe1 Bxg3 28.Qxg3+ Kb7 29.a3 a5 30.axb4 axb4 31.Qf3 Qc6 32.Qf5 g6 33.Qf3 
Rc7 34.Qd3 Qc4 35.Qd1 Rf7 36.Qd2 Rd7 37.Qf2 b3 38.cxb3 Qxb3 0-1

[Event "interzonal play-off"]
[Site "Portoroz YUG"]
[Date "1973.09.06"]
[Round "2"]
[White "Portisch, Lajos"]
[Black "Geller, Efim"]
[Result "1/2-1/2"]
[WhiteElo "2650"]
[BlackElo "2605"]
[ECO "D31"]
[EventDate "1973.09.04"]
[PlyCount "96"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.cxd5 exd5 5.Bf4 c6 6.e3 Bf5 7.Nge2 Nd7 8.Ng3 
Bg6 9.Be2 Ngf6 10.h4 h5 11.Bg5 Bd6 12.Rh3 Qb6 13.Qd2 O-O 14.Kf1 Rfe8 15.
Kg1 Rac8 16.Bf3 Ng4 17.Nce2 Ndf6 18.Nf4 Bxf4 19.exf4 c5 20.f5 Bh7 21.Nxh5 
Bxf5 22.Bxf6 Nxf6 23.Qg5 Nxh5 24.Qxf5 g6 25.Qg5 Qf6 26.Rg3 Qxg5 27.Rxg5 
Nf6 28.Rd1 cxd4 29.Rxd4 Rc2 30.Rf4 Kg7 31.Bxd5 Rxb2 32.Bb3 Re1+ 33.Kh2 Re4
34.Rxe4 Nxe4 35.Re5 f5 36.Re7+ Kf6 37.Re6+ Kg7 38.f4 Nc5 39.Re7+ Kf8 40.
Rf7+ Ke8 41.Rg7 Nxb3 42.axb3 Rxb3 43.Rxg6 Kf7 44.Rg5 Kf6 45.h5 Re3 46.Rg6+
Kf7 47.Rg5 Kf6 48.Rg6+ Kf7 1/2-1/2

[Event "interzonal play-off"]
[Site "Portoroz YUG"]
[Date "1973.09.07"]
[Round "3"]
[White "Polugaevsky, Lev"]
[Black "Portisch, Lajos"]
[Result "0-1"]
[WhiteElo "2625"]
[BlackElo "2650"]
[ECO "D63"]
[EventDate "1973.09.04"]
[PlyCount "107"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 Be7 5.Bg5 O-O 6.e3 Nbd7 7.Rc1 a6 8.a3 c6 
9.Bd3 h6 10.Bh4 dxc4 11.Bxc4 b5 12.Ba2 c5 13.O-O Bb7 14.dxc5 Nxc5 15.Nd4 
Rc8 16.f3 Qb6 17.b4 Ncd7 18.Bf2 Bd6 19.e4 Qc7 20.g3 Qb8 21.Qe2 Ne5 22.Rfd1
Rfd8 23.Nxe6 fxe6 24.Bxe6+ Kh8 25.f4 Rxc3 26.Rxc3 Nxe4 27.Re3 Nxf2 28.Kxf2
Nc4 29.Bxc4 bxc4 30.Qxc4 Rf8 31.Rd4 Be5 32.Rde4 Bxe4 33.Rxe4 Qb6+ 34.Kg2 
Bf6 35.Re6 Qb5 36.Qxb5 axb5 37.Rb6 Ra8 38.Rxb5 Rxa3 39.h4 Bc3 40.Rb6 Be1 
41.Rg6 Bxb4 42.h5 Be1 43.Kh3 Kg8 44.Kg2 Kf7 45.Kh3 Re3 46.Kg2 Re6 47.Rg4 
Ra6 48.Rh4 Ra2+ 49.Kh3 Bf2 50.Kg4 Ra4 51.Kf3 Bd4 52.Kg4 Bf6 53.Rh1 Ra1 54.
Rh3 0-1

[Event "interzonal play-off"]
[Site "Portoroz YUG"]
[Date "1973.09.09"]
[Round "4"]
[White "Polugaevsky, Lev"]
[Black "Geller, Efim"]
[Result "1-0"]
[WhiteElo "2625"]
[BlackElo "2605"]
[ECO "E88"]
[EventDate "1973.09.04"]
[PlyCount "69"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 e5 7.d5 c6 8.Bd3 cxd5 9.
cxd5 Nh5 10.Nge2 f5 11.exf5 gxf5 12.O-O Kh8 13.f4 Nd7 14.Rc1 a6 15.Bb1 
exf4 16.Nxf4 Nxf4 17.Bxf4 Ne5 18.Kh1 Bd7 19.b3 Rc8 20.Ne2 Rxc1 21.Bxc1 Qb6
22.h3 Ng6 23.Ng3 Bb5 24.Rxf5 Rxf5 25.Nxf5 Be5 26.Be3 Qc7 27.Bd4 Bd7 28.Ne3
Qa5 29.Nc4 Qc7 30.Bxg6 hxg6 31.Bxe5+ dxe5 32.Qe2 Qc5 33.Qxe5+ Kh7 34.d6 
Qc6 35.Kh2 1-0

[Event "interzonal play-off"]
[Site "Portoroz YUG"]
[Date "1973.09.10"]
[Round "5"]
[White "Geller, Efim"]
[Black "Portisch, Lajos"]
[Result "0-1"]
[WhiteElo "2605"]
[BlackElo "2650"]
[ECO "C95"]
[EventDate "1973.09.04"]
[PlyCount "173"]

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.Qc2 a5 13.a4 bxc4 14.Bxc4 d5 15.Bd3 dxe4 
16.Bxe4 Nxe4 17.Qxe4 Bb4 18.Bd2 Bxd2 19.Nbxd2 exd4 20.Qxd4 Nf6 21.Rac1 Bd7
22.Nc4 c5 23.Qxc5 Bxa4 24.Nfe5 Rb8 25.Qa3 Bb5 26.Nxa5 Qb6 27.b4 Rfe8 28.
Qc3 Re6 29.Nec6 Rbe8 30.Rxe6 Rxe6 31.Qc5 Qxc5 32.Rxc5 Re1+ 33.Kh2 Ba4 34.
b5 Rb1 35.Nd4 h5 36.Rc8+ Kh7 37.Rb8 h4 38.Rb7 Kg6 39.Nac6 Ne4 40.Ne5+ Kf6 
41.Ng4+ Kg6 42.Ne5+ Kf6 43.f4 Bb3 44.Nef3 g6 45.Nxh4 Bd5 46.Rc7 Rd1 47.Nc2
Rb1 48.Ne3 Rxb5 49.Nf3 Be6 50.Nd4 Rb4 51.Nxe6 Kxe6 52.Rc4 Rxc4 53.Nxc4 Kf5
54.g3 Nc5 55.Kg2 Nd3 56.Kf3 Nc5 57.Nd6+ Ke6 58.Ne4 Nd7 59.Ke3 f5 60.Ng5+ 
Kf6 61.Kd4 Kg7 62.Ne6+ Kf7 63.Nc7 Nf6 64.Nd5 Nd7 65.Nc7 Nf6 66.Nd5 Nd7 67.
Nc3 Nf6 68.Ke5 Nh5 69.Ne2 Ke7 70.Kd5 Nf6+ 71.Ke5 Nh5 72.Kd4 Nf6 73.Ke3 
Nd5+ 74.Kf3 Kf7 75.Nc1 Kg7 76.Nd3 Kf7 77.Kf2 Kg7 78.Nc5 Nf6 79.Ke3 Kh7 80.
Nd3 Kh6 81.Ne5 Kg7 82.Nc4 Kf7 83.Kf3 Nd5 84.Ke2 Kg7 85.Kd3 Nf6 86.Ke3 Kf7 
87.Kf3 0-1

[Event "interzonal play-off"]
[Site "Portoroz YUG"]
[Date "1973.09.11"]
[Round "6"]
[White "Portisch, Lajos"]
[Black "Polugaevsky, Lev"]
[Result "1-0"]
[WhiteElo "2650"]
[BlackElo "2625"]
[ECO "D47"]
[EventDate "1973.09.04"]
[PlyCount "97"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 d5 4.d4 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 
Bb7 9.O-O b4 10.Ne4 Nxe4 11.Bxe4 Be7 12.Nd2 O-O 13.b3 Rc8 14.Nc4 Nf6 15.
Bf3 Nd5 16.a3 a5 17.Bd2 c5 18.dxc5 Bxc5 19.Nxa5 Ba6 20.axb4 Bxb4 21.Bxb4 
Nxb4 22.Qxd8 Rfxd8 23.Rfd1 Rxd1+ 24.Rxd1 Kf8 25.h3 Rc5 26.Rd8+ Ke7 27.Rb8 
Rb5 28.Rxb5 Bxb5 29.g3 Kd6 30.Nb7+ Kc7 31.Nc5 h6 32.Bg2 Na2 33.Bf1 Kc6 34.
Bxb5+ Kxc5 35.Be8 f6 36.Bd7 e5 37.Kg2 e4 38.h4 Nc1 39.Be6 Nd3 40.h5 Ne1+ 
41.Kh3 Kd6 42.Bf5 Ke5 43.g4 Nc2 44.Kg2 Kd5 45.Bh7 Nb4 46.Kf1 Nc6 47.Ke2 
Nb4 48.Kd2 Na2 49.Bf5 1-0

[Event "interzonal play-off"]
[Site "Portoroz YUG"]
[Date "1973.09.13"]
[Round "7"]
[White "Geller, Efim"]
[Black "Polugaevsky, Lev"]
[Result "1-0"]
[WhiteElo "2605"]
[BlackElo "2625"]
[ECO "B83"]
[EventDate "1973.09.04"]
[PlyCount "65"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 e6 6.Be2 Nf6 7.Be3 Be7 8.f4 
O-O 9.O-O Bd7 10.Nb3 a5 11.a4 Nb4 12.Bf3 e5 13.Kh1 Bc6 14.fxe5 dxe5 15.Qe2
Qc7 16.Qf2 Nd7 17.Rad1 Kh8 18.Bg4 Nf6 19.Bf3 Nd7 20.Bg4 Nf6 21.Bf5 g6 22.
Bb6 Qb8 23.Bh3 Nxe4 24.Nxe4 Bxe4 25.Rd7 Qe8 26.Bc5 Bxc5 27.Qf6+ Kg8 28.
Nxc5 Nd5 29.Qd6 Ra6 30.Nxa6 bxa6 31.Rfxf7 Rxf7 32.Be6 Bxg2+ 33.Kg1 1-0

[Event "interzonal play-off"]
[Site "Portoroz YUG"]
[Date "1973.09.14"]
[Round "8"]
[White "Portisch, Lajos"]
[Black "Geller, Efim"]
[Result "1/2-1/2"]
[WhiteElo "2650"]
[BlackElo "2605"]
[ECO "E92"]
[EventDate "1973.09.04"]
[PlyCount "53"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.Be3 Qe7 8.dxe5 
dxe5 9.Nd5 Nxd5 10.cxd5 Rd8 11.O-O Nd7 12.Qc2 Nf6 13.Bg5 h6 14.Bxf6 Bxf6 
15.Rac1 c6 16.dxc6 bxc6 17.Qxc6 Bg4 18.h3 Rac8 19.Qa4 Bxf3 20.Bxf3 Rxc1 
21.Rxc1 Kg7 22.Qa5 h5 23.b3 Rd7 24.Qc5 Qe6 25.Rd1 Be7 26.Qc2 Rxd1+ 27.Bxd1
1/2-1/2

[Event "interzonal play-off"]
[Site "Portoroz YUG"]
[Date "1973.09.15"]
[Round "9"]
[White "Polugaevsky, Lev"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[WhiteElo "2625"]
[BlackElo "2650"]
[ECO "D65"]
[EventDate "1973.09.04"]
[PlyCount "54"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 Be7 5.Bg5 O-O 6.e3 Nbd7 7.Rc1 a6 8.cxd5 
exd5 9.Bd3 c6 10.Qc2 Re8 11.O-O Nf8 12.Rce1 Ne4 13.Bxe7 Qxe7 14.Bxe4 dxe4 
15.Nd2 f5 16.f3 exf3 17.Nxf3 Be6 18.e4 fxe4 19.Rxe4 Rad8 20.Na4 Qd6 21.
Rfe1 Bf7 22.Rxe8 Rxe8 23.Rxe8 Bxe8 24.Nc5 b5 25.Nxa6 Bh5 26.Qc5 Qg6 27.Ne1
Qb1 1/2-1/2

[Event "interzonal play-off"]
[Site "Portoroz YUG"]
[Date "1973.09.17"]
[Round "10"]
[White "Polugaevsky, Lev"]
[Black "Geller, Efim"]
[Result "1/2-1/2"]
[WhiteElo "2625"]
[BlackElo "2605"]
[ECO "D62"]
[EventDate "1973.09.04"]
[PlyCount "34"]

1.d4 e6 2.c4 d5 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 O-O 6.e3 Nbd7 7.Qc2 c5 8.cxd5 
Nxd5 9.Bxe7 Qxe7 10.Nxd5 exd5 11.dxc5 Nxc5 12.Be2 Bg4 13.Nd4 Ne6 14.Bxg4 
Nxd4 15.Qa4 Nc6 16.O-O Rfd8 17.Rfd1 Rd6 1/2-1/2

[Event "interzonal play-off"]
[Site "Portoroz YUG"]
[Date "1973.09.19"]
[Round "11"]
[White "Geller, Efim"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[WhiteElo "2605"]
[BlackElo "2650"]
[ECO "C95"]
[EventDate "1973.09.04"]
[PlyCount "62"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 
9.h3 Nb8 10.d4 Nbd7 11.Nbd2 Bb7 12.Bc2 Re8 13.a4 Bf8 14.b4 a5 15.bxa5 Rxa5
16.Rb1 Qa8 17.axb5 exd4 18.cxd4 Nxe4 19.Nxe4 Bxe4 20.Rxe4 Rxe4 21.Ng5 Rh4 
22.Nxf7 Kxf7 23.Bg5 Re4 24.Qf3+ Nf6 25.Bxf6 Re1+ 26.Rxe1 Qxf3 27.gxf3 Kxf6
28.Bd3 Ra4 29.d5 Rd4 30.Be4 Be7 31.Kg2 g6 1/2-1/2

[Event "interzonal play-off"]
[Site "Portoroz YUG"]
[Date "1973.09.21"]
[Round "12"]
[White "Portisch, Lajos"]
[Black "Polugaevsky, Lev"]
[Result "1/2-1/2"]
[WhiteElo "2650"]
[BlackElo "2625"]
[ECO "D41"]
[EventDate "1973.09.04"]
[PlyCount "38"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 c5 4.d4 d5 5.cxd5 Nxd5 6.e4 Nxc3 7.bxc3 cxd4 8.
cxd4 Bb4+ 9.Bd2 Bxd2+ 10.Qxd2 O-O 11.Bc4 Nc6 12.O-O Qd6 13.Rfd1 Rd8 14.
Rac1 Bd7 15.Qe2 Rac8 16.d5 exd5 17.Bxd5 Be6 18.Bxc6 Rxc6 19.Rb1 Rb6 
1/2-1/2

