[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.23"]
[Round "1"]
[White "Balashov, Yury"]
[Black "Sax, Gyula"]
[Result "1-0"]
[WhiteElo "2600"]
[BlackElo "2590"]
[ECO "A48"]
[EventDate "1979.09.23"]
[PlyCount "81"]

1.d4 Nf6 2.Nf3 g6 3.Bg5 Bg7 4.Nbd2 O-O 5.c3 d6 6.e4 Nbd7 7.Be2 h6 8.Bh4 e5
9.dxe5 dxe5 10.O-O Qe7 11.Re1 Rd8 12.Qc2 b6 13.Bf1 Bb7 14.Nc4 Qe6 15.Nfd2 
Qg4 16.Bxf6 Bxf6 17.Ne3 Qe6 18.Bc4 Qd6 19.Rad1 c6 20.Nf3 Qe7 21.Ng4 Bg7 
22.Qd2 b5 23.Bb3 Kh7 24.Qd6 Qxd6 25.Rxd6 Nc5 26.Rxd8 Rxd8 27.Bxf7 Na4 28.
Ngxe5 g5 29.Bb3 Nxb2 30.Nf7 Rd7 31.e5 Re7 32.Nd4 Nc4 33.Bxc4 bxc4 34.Nd8 
Ba8 35.N8xc6 Bxc6 36.Nxc6 Re6 37.Nxa7 Bxe5 38.g3 Kg6 39.Re4 Kf6 40.Rxc4 
Ra6 41.Nc6 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.23"]
[Round "1"]
[White "Petrosian, Tigran"]
[Black "Smejkal, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2610"]
[BlackElo "2550"]
[ECO "A34"]
[EventDate "1979.09.23"]
[PlyCount "30"]

1.Nf3 Nf6 2.c4 c5 3.Nc3 d5 4.cxd5 Nxd5 5.d4 Nxc3 6.bxc3 g6 7.e3 Bg7 8.Bb5+
Bd7 9.a4 Qa5 10.Qb3 cxd4 11.exd4 O-O 12.O-O Be6 13.Qa3 a6 14.Be2 Nc6 15.
Be3 Bd5 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.23"]
[Round "1"]
[White "Portisch, Lajos"]
[Black "Torre, Eugenio"]
[Result "0-1"]
[WhiteElo "2640"]
[BlackElo "2520"]
[ECO "E80"]
[EventDate "1979.09.23"]
[PlyCount "68"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 c5 6.dxc5 dxc5 7.Qxd8+ Kxd8 8.Be3 
Nfd7 9.Nge2 Nc6 10.O-O-O b6 11.f4 Bb7 12.g3 Na5 13.b3 e6 14.Bh3 Ke7 15.f5 
Be5 16.fxe6 fxe6 17.Bf4 Nc6 18.Nb5 Nf6 19.Rd6 Bxd6 20.Bxd6+ Kf7 21.Rf1 e5 
22.Bd7 Nb4 23.Nc7 Rad8 24.Be6+ Kg7 25.Be7 Nxe4 26.Bd5 Bxd5 27.cxd5 Rxd5 
28.g4 Rc8 29.Nxd5 Nxd5 30.Bh4 c4 31.Kb2 c3+ 32.Ka3 Ne3 33.Rg1 Nc2+ 34.Ka4 
Nd4 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.23"]
[Round "1"]
[White "Velimirovic, Dragoljub"]
[Black "Shamkovich, Leonid"]
[Result "0-1"]
[WhiteElo "2515"]
[BlackElo "2495"]
[ECO "B06"]
[EventDate "1979.09.23"]
[PlyCount "146"]

1.e4 g6 2.h4 h6 3.d4 d6 4.h5 g5 5.c4 Bg7 6.Nc3 Nc6 7.Be3 Nf6 8.f3 a6 9.
Nge2 Rb8 10.Nc1 e5 11.d5 Nd4 12.b4 c5 13.Nb3 b6 14.b5 a5 15.g4 Ng8 16.Na4 
Ne7 17.Nb2 Ra8 18.Nd3 Bd7 19.Nxd4 cxd4 20.Bc1 Nc8 21.Ba3 Ra7 22.Nb2 Qf6 
23.Bd3 Bf8 24.Qe2 Rc7 25.Na4 Be7 26.Bc1 O-O 27.Bd2 Bd8 28.Rc1 Qe7 29.Rc2 
f6 30.Kd1 Kg7 31.Kc1 Qf7 32.Kb1 Rb7 33.Rg1 Kh8 34.Qh2 Be7 35.Nb2 Rc7 36.
Nd1 Rg8 37.Nf2 Bd8 38.Nh1 Ne7 39.Ng3 Rc8 40.Bc1 Bc7 41.Rf2 Rg7 42.Ne2 Rcg8
43.Rgf1 Qe8 44.Bb2 Nc8 45.f4 gxf4 46.Nxf4 Ne7 47.Ne2 Rf8 48.Nxd4 Bxg4 49.
Ne6 Bxe6 50.dxe6 Ng8 51.Qh3 Qe7 52.Be2 Bd8 53.Rd1 Qb7 54.Rxd6 Qxe4+ 55.Qd3
Qxd3+ 56.Bxd3 Be7 57.Rd7 Rg3 58.Kc2 Rc8 59.Kd2 Rg7 60.Ke2 Bc5 61.Rxg7 Kxg7
62.Rg2+ Kh8 63.Bc1 Bf8 64.Rg6 e4 65.Bc2 Be7 66.Bxh6 Rxc4 67.Bb3 Rc5 68.
Bg7+ Kh7 69.Bf8 a4 70.Rg7+ Kh8 71.h6 axb3 72.h7 Nh6 73.Rxe7 b2 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.23"]
[Round "1"]
[White "Sunye Neto, Jaime"]
[Black "Timman, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2375"]
[BlackElo "2625"]
[ECO "A28"]
[EventDate "1979.09.23"]
[PlyCount "120"]

1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.d3 d5 5.cxd5 Nxd5 6.e3 Be7 7.Be2 O-O 8.O-O 
Be6 9.Nxd5 Bxd5 10.Bd2 Qd6 11.Bc3 Rad8 12.Qa4 f6 13.Rfd1 Qd7 14.Qc2 Nb4 
15.Qb1 c5 16.a3 Na6 17.b4 cxb4 18.axb4 Nc7 19.d4 e4 20.Nd2 a6 21.Nxe4 Qc6 
22.f3 f5 23.Nc5 b6 24.Na4 Nb5 25.Be1 Qe6 26.Qd3 Rfe8 27.Nc3 Nxc3 28.Qxc3 
Rc8 29.Qd2 Bxb4 30.Qxb4 Qxe3+ 31.Bf2 Qxe2 32.Re1 Qb5 33.Rxe8+ Rxe8 34.Qxb5
axb5 35.Rb1 Bc4 36.Bg3 Kf7 37.Bc7 Re2 38.Bxb6 Ke6 39.Bc5 Kd5 40.h4 Bd3 41.
Rb4 g6 42.Rb3 Kc4 43.Ra3 Rd2 44.Ra7 b4 45.Bxb4 Kxb4 46.Rxh7 Kc4 47.Rg7 f4 
48.Rf7 Kxd4 49.Rxf4+ Ke3 50.Rf6 Rd1+ 51.Kh2 Kf2 52.Rd6 Rd2 53.Rd5 Kf1 54.
Kh1 Kf2 55.Kh2 Rd1 56.Rd6 Ke3 57.Kg3 Rd2 58.Rd5 Rb2 59.Re5+ Kd4 60.Rg5 Ke3
1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.23"]
[Round "1"]
[White "Harandi, Khosro"]
[Black "Vaganian, Rafael"]
[Result "0-1"]
[WhiteElo "2410"]
[BlackElo "2570"]
[ECO "C16"]
[EventDate "1979.09.23"]
[PlyCount "122"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Ne7 5.Bd2 b6 6.Nf3 Qd7 7.a3 Bxc3 8.Bxc3 a5 
9.a4 Nf5 10.Bd3 Ba6 11.O-O Bxd3 12.Qxd3 h5 13.Bd2 c5 14.dxc5 bxc5 15.Qb5 
c4 16.Bxa5 Nc6 17.Bb6 O-O 18.Qc5 Rfc8 19.Qa3 d4 20.Rfe1 Qd5 21.Qc5 Qxc5 
22.Bxc5 Rcb8 23.Reb1 Ra5 24.Bd6 Nxd6 25.exd6 Rd5 26.Nd2 Na5 27.b4 cxb3 28.
Nxb3 d3 29.Rc1 Nxb3 30.cxb3 Rxb3 31.a5 Rb8 32.a6 Rxd6 33.a7 Ra8 34.Rcb1 
Kh7 35.Kf1 Rd7 36.Rd1 e5 37.f3 h4 38.Ra3 Rdxa7 39.Raxd3 Ra2 40.Re3 f6 41.
Rde1 Kg6 42.R3e2 Kf5 43.Kg1 Rxe2 44.Rxe2 Ra1+ 45.Kf2 g5 46.Rb2 g4 47.fxg4+
Kxg4 48.Rb6 Ra2+ 49.Kg1 f5 50.Rg6+ Kf4 51.Rh6 Ke3 52.h3 e4 53.Rxh4 f4 54.
Rh8 Ra1+ 55.Kh2 Kf2 56.Rf8 f3 57.h4 Rg1 58.gxf3 Rg2+ 59.Kh1 e3 60.Re8 Rg3 
61.Kh2 Rxf3 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.23"]
[Round "1"]
[White "Bronstein, Luis Marcos"]
[Black "Kagan, Shimon"]
[Result "1-0"]
[WhiteElo "2420"]
[BlackElo "2445"]
[ECO "B35"]
[EventDate "1979.09.23"]
[PlyCount "68"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4 Qa5 8.O-O 
O-O 9.Bb3 d6 10.h3 Bd7 11.Re1 Rac8 12.Nd5 Rfe8 13.Bd2 Qc5 14.Nf3 Nxd5 15.
exd5 Na5 16.Be3 Qc7 17.c3 b5 18.Bd4 Bh6 19.Re4 f6 20.Rh4 Bg7 21.Bc2 Rf8 
22.Qb1 Be8 23.b4 Nc4 24.a4 bxa4 25.Bxa4 Bf7 26.Bb3 Bxd5 27.Rxa7 Qd8 28.Nd2
Bf7 29.Nxc4 Bxc4 30.Bxc4+ Rxc4 31.Qe4 Rf7 32.Qd5 Rc8 33.Re4 Bf8 34.Bxf6 
Rc7 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.23"]
[Round "1"]
[White "Hebert, Jean"]
[Black "Huebner, Robert"]
[Result "0-1"]
[WhiteElo "2365"]
[BlackElo "2595"]
[ECO "B82"]
[EventDate "1979.09.23"]
[PlyCount "78"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be3 a6 7.f4 b5 8.Qf3 Bb7 
9.Bd3 Nbd7 10.g4 Nc5 11.g5 Nfd7 12.O-O-O b4 13.Nce2 Qc7 14.Kb1 e5 15.Nb3 
exf4 16.Bxf4 Be7 17.Ned4 g6 18.h4 O-O-O 19.Nxc5 Nxc5 20.Rhe1 Rhe8 21.Bd2 
d5 22.e5 Bf8 23.Bf4 Qb6 24.Qh3+ Rd7 25.Be2 Ne6 26.Be3 Bc5 27.Nxe6 fxe6 28.
Bxc5 Qxc5 29.Bg4 Qc6 30.Rd4 Rc7 31.Rc1 Qb6 32.Qd3 a5 33.Rf4 Kb8 34.Qd4 
Qxd4 35.Rxd4 Rf8 36.Bxe6 Re7 37.Bg4 Rxe5 38.c3 Re4 39.Rxe4 dxe4 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.23"]
[Round "1"]
[White "Mecking, Henrique"]
[Black "Ivkov, Borislav"]
[Result "1/2-1/2"]
[WhiteElo "2615"]
[BlackElo "2525"]
[ECO "C67"]
[EventDate "1979.09.23"]
[PlyCount "33"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Be7 6.Qe2 Nd6 7.Bxc6 bxc6 8.
dxe5 Nb7 9.b3 O-O 10.Bb2 Re8 11.Nbd2 Bf8 12.Rfd1 d6 13.Nf1 Nc5 14.Ng3 a5 
15.h3 a4 16.Qd2 Be6 17.exd6 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.24"]
[Round "2"]
[White "Vaganian, Rafael"]
[Black "Balashov, Yury"]
[Result "1/2-1/2"]
[WhiteElo "2570"]
[BlackElo "2600"]
[ECO "D63"]
[EventDate "1979.09.23"]
[PlyCount "48"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Bg5 Be7 5.Nc3 O-O 6.e3 Nbd7 7.Rc1 a6 8.c5 c6 
9.Bd3 b6 10.b4 a5 11.a3 axb4 12.axb4 bxc5 13.bxc5 Ba6 14.Bxa6 Rxa6 15.Ra1 
Rxa1 16.Qxa1 e5 17.O-O h6 18.Bxf6 Bxf6 19.Qa7 Qe7 20.Ne2 Re8 21.Rd1 exd4 
22.Nexd4 Nxc5 23.Qxe7 Rxe7 24.Nxc6 Rb7 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.24"]
[Round "2"]
[White "Ivkov, Borislav"]
[Black "Hebert, Jean"]
[Result "1/2-1/2"]
[WhiteElo "2525"]
[BlackElo "2365"]
[ECO "D19"]
[EventDate "1979.09.23"]
[PlyCount "80"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.e3 e6 7.Bxc4 Bb4 8.O-O O-O
9.Qe2 Ne4 10.Bd3 Bxc3 11.bxc3 Nxc3 12.Qc2 Bxd3 13.Qxd3 Nd5 14.Rb1 a5 15.
Ba3 Nb4 16.Bxb4 axb4 17.Rxb4 Na6 18.Rb3 Ra7 19.Rfb1 h6 20.Qc3 Qc7 21.Qb2 
Rb8 22.h4 c5 23.Rb5 cxd4 24.Qxd4 Raa8 25.Ne5 Rd8 26.Qc4 Qxc4 27.Nxc4 Rac8 
28.Ne5 Nc5 29.a5 Rd5 30.Nf3 Rcd8 31.Nd4 g6 32.Rc1 Nd3 33.Rd1 Rxb5 34.Nxb5 
e5 35.Nc3 Kf8 36.Kf1 Ke7 37.Ke2 Nc5 38.Nd5+ Kf8 39.Nb6 Rxd1 40.Kxd1 Ke7 
1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.24"]
[Round "2"]
[White "Sax, Gyula"]
[Black "Petrosian, Tigran"]
[Result "0-1"]
[WhiteElo "2590"]
[BlackElo "2610"]
[ECO "C08"]
[EventDate "1979.09.23"]
[PlyCount "74"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 exd5 5.Bb5+ Nc6 6.Qe2+ Be7 7.dxc5 Nf6 8.
Nb3 O-O 9.Nf3 Re8 10.Be3 a6 11.Ba4 Ne4 12.O-O-O Bxc5 13.Nfd4 Bd7 14.Nxc6 
bxc6 15.Rhe1 Bb4 16.Rf1 Qc7 17.Qd3 Qxh2 18.Rh1 Qe5 19.Nd4 Rac8 20.c3 Bd6 
21.Bc2 g6 22.Qxa6 Ra8 23.Qd3 Rxa2 24.Bb1 Ra1 25.Nc2 Raa8 26.Nd4 Qf6 27.Nf3
Ra1 28.Qc2 Bf5 29.Nd4 Rxb1+ 30.Qxb1 Nxc3 31.Nxf5 Nxb1 32.Nh6+ Kf8 33.Kxb1 
Rb8 34.Rd2 Bf4 35.Rh3 Bxe3 36.Rxe3 Kg7 37.Rf3 Qxf3 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.24"]
[Round "2"]
[White "Huebner, Robert"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[WhiteElo "2595"]
[BlackElo "2640"]
[ECO "B97"]
[EventDate "1979.09.23"]
[PlyCount "57"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 8.Qd2 
Qxb2 9.Rb1 Qa3 10.f5 Nc6 11.fxe6 fxe6 12.Nxc6 bxc6 13.e5 dxe5 14.Bxf6 gxf6
15.Be2 Qd6 16.Qe3 Qd4 17.Qf3 Bb4 18.Qxc6+ Ke7 19.Qxa8 Qxc3+ 20.Kf1 Rd8 21.
Qe4 Rd4 22.Qxh7+ Kd6 23.g3 Bd7 24.Qh8 f5 25.a3 Bc5 26.Qf8+ Kc6 27.Qa8+ Kd6
28.Qf8+ Kc6 29.Qa8+ 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.24"]
[Round "2"]
[White "Shamkovich, Leonid"]
[Black "Bronstein, Luis Marcos"]
[Result "0-1"]
[WhiteElo "2495"]
[BlackElo "2420"]
[ECO "A28"]
[EventDate "1979.09.23"]
[PlyCount "166"]

1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.e3 g6 5.d4 d6 6.Be2 Bg7 7.dxe5 Nxe5 8.Nxe5 
dxe5 9.Qxd8+ Kxd8 10.b3 c6 11.Ba3 Kc7 12.O-O-O Rd8 13.Rxd8 Kxd8 14.Rd1+ 
Ke8 15.Bd6 Ng4 16.Rf1 h5 17.h3 Nh6 18.Ba3 f5 19.Bb2 Be6 20.Na4 b6 21.f4 
Nf7 22.g4 fxg4 23.hxg4 hxg4 24.Bd3 Bf5 25.e4 Bd7 26.f5 gxf5 27.exf5 Ke7 
28.Ba3+ Kf6 29.Nc3 Ng5 30.Bd6 Bf8 31.Bxf8 Rxf8 32.Be2 g3 33.Rg1 Bxf5 34.
Rxg3 Rh8 35.Rg1 Rh2 36.Rf1 Ke6 37.c5 b5 38.Rd1 b4 39.Bc4+ Ke7 40.Ne2 Bg4 
41.Re1 Bxe2 42.Bxe2 e4 43.Bd3 Rh4 44.Bc4 Kf6 45.Rd1 Ke5 46.Rd6 e3 47.Kd1 
Ne4 48.Rxc6 Kd4 49.Re6 Nc3+ 50.Kc2 Rh2+ 51.Kc1 Nxa2+ 52.Kd1 Nc3+ 53.Kc1 
Na2+ 54.Kd1 Nc3+ 55.Kc1 e2 56.c6 Rh1+ 57.Kd2 Rd1+ 58.Kc2 e1=N+ 59.Rxe1 
Rxe1 60.c7 Re8 61.Ba6 Nb5 62.c8=Q Rxc8+ 63.Bxc8 Ke3 64.Kb2 Kd2 65.Be6 Nc3 
66.Bg8 Nd1+ 67.Kb1 Kc3 68.Bf7 Ne3 69.Be6 Nf1 70.Bg8 Nd2+ 71.Ka2 Kc2 72.
Bh7+ Kc1 73.Bg6 Nf1 74.Bh7 Ne3 75.Bg6 Nd5 76.Bh7 Nc3+ 77.Ka1 a5 78.Bg8 Kc2
79.Bc4 Ne4 80.Ka2 Nc5 81.Bf7 Nd3 82.Bg6 Kc3 83.Kb1 Nc5 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.24"]
[Round "2"]
[White "Timman, Jan"]
[Black "Harandi, Khosro"]
[Result "1/2-1/2"]
[WhiteElo "2625"]
[BlackElo "2410"]
[ECO "C69"]
[EventDate "1979.09.23"]
[PlyCount "133"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O f6 6.d4 Bg4 7.dxe5 Qxd1 8.
Rxd1 fxe5 9.Rd3 Bd6 10.Nbd2 b5 11.b3 Ne7 12.Bb2 Ng6 13.g3 O-O 14.Kg2 Rae8 
15.Rc1 c5 16.a3 Rf6 17.c4 b4 18.axb4 cxb4 19.c5 Bf8 20.h3 Bc8 21.h4 h5 22.
Ng5 Rc6 23.Rd5 Be7 24.Ndf3 Bf6 25.Rcd1 Bg4 26.R1d2 Kf8 27.Nh7+ Kg8 28.Nhg5
Kf8 29.Rc2 a5 30.Rc1 Ra6 31.Ra1 Ne7 32.Rxe5 Bxf3+ 33.Kxf3 Bxe5 34.Bxe5 Nc6
35.Bb2 a4 36.bxa4 Ra5 37.Rd1 Rxc5 38.Rd7 Ne5+ 39.Bxe5 Rcxe5 40.Rxc7 Rb8 
41.Rc2 b3 42.Rb2 Ra5 43.Ke3 Rxa4 44.Kd3 Ke7 45.Kc3 Rab4 46.Nh3 R4b5 47.Nf4
Kd6 48.Nd3 Rc8+ 49.Kd2 Kc6 50.Nc1 Rd8+ 51.Ke3 Rdb8 52.Kd2 Kd6 53.Nd3 Re8 
54.Nc1 Rxe4 55.Rxb3 Rxb3 56.Nxb3 Kd5 57.Kd3 Ra4 58.Nd2 Ke5 59.Nf3+ Kf5 60.
Ke2 Ra2+ 61.Kf1 Ra8 62.Kg2 Re8 63.Ng5 Ke5 64.Nh3 Ke4 65.Ng5+ Kd3 66.Nh3 
Kd2 67.Kf1 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.24"]
[Round "2"]
[White "Garcia Gonzales, Guillermo"]
[Black "Sunye Neto, Jaime"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2375"]
[ECO "A19"]
[EventDate "1979.09.23"]
[PlyCount "83"]

1.c4 Nf6 2.Nc3 e6 3.e4 c5 4.e5 Ng8 5.Nf3 Nc6 6.d4 cxd4 7.Nxd4 Nxe5 8.Ndb5 
a6 9.Nd6+ Bxd6 10.Qxd6 f6 11.Be3 Ne7 12.Bb6 Nf5 13.Bxd8 Nxd6 14.Bc7 Ke7 
15.c5 Ne8 16.Bb6 d5 17.cxd6+ Nxd6 18.Bc5 Rd8 19.Rd1 Nf7 20.h4 Bd7 21.Rh3 
Bc6 22.Rhd3 e5 23.g4 Ke6 24.f4 exf4 25.Ne2 Ne4 26.Nxf4+ Ke5 27.Be3 g5 28.
hxg5 fxg5 29.Nh5 Rxd3 30.Bxd3 Nf6 31.Nxf6 Kxf6 32.Bd4+ Ke7 33.Bxh7 Nh6 34.
Bc5+ Kf7 35.Rd4 Re8+ 36.Kd2 Re5 37.b4 Rd5 38.Kc3 Rxd4 39.Kxd4 Nxg4 40.Bf5 
Nf6 41.Bd6 Bf3 42.a4 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.24"]
[Round "2"]
[White "Torre, Eugenio"]
[Black "Velimirovic, Dragoljub"]
[Result "1/2-1/2"]
[WhiteElo "2520"]
[BlackElo "2515"]
[ECO "B33"]
[EventDate "1979.09.23"]
[PlyCount "27"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Ndb5 d6 7.Bf4 e5 8.Bg5 
a6 9.Na3 d5 10.Nxd5 Bxa3 11.bxa3 Qa5+ 12.Bd2 Qd8 13.Bg5 Qa5+ 14.Bd2 
1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.24"]
[Round "2"]
[White "Smejkal, Jan"]
[Black "Mecking, Henrique"]
[Result "1/2-1/2"]
[WhiteElo "2550"]
[BlackElo "2615"]
[ECO "A29"]
[EventDate "1979.09.23"]
[PlyCount "81"]

1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.g3 Bb4 5.Nd5 e4 6.Nh4 O-O 7.Bg2 Bc5 8.O-O 
Re8 9.d3 exd3 10.Qxd3 Ne5 11.Qc2 c6 12.Be3 cxd5 13.Bxc5 d6 14.Bd4 dxc4 15.
Rfd1 Qe7 16.Rd2 Nc6 17.Bxf6 Qxf6 18.Qxc4 Be6 19.Qb5 Qe7 20.Rad1 a6 21.Qb6 
Rac8 22.b3 Red8 23.Nf3 d5 24.Nd4 Nxd4 25.Qxd4 Rd7 26.Bf3 g6 27.h4 Qc5 28.
Qf6 Qc3 29.Rd4 h5 30.Qg5 Kh7 31.Rf4 Qg7 32.Rfd4 Rcd8 33.Kh2 f5 34.Qf4 Bf7 
35.Rc1 Qh6 36.e3 Qxf4 37.gxf4 Kg7 38.a4 Kf6 39.Rb4 d4 40.Rb6+ Kg7 41.exd4 
1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.25"]
[Round "3"]
[White "Balashov, Yury"]
[Black "Timman, Jan"]
[Result "1-0"]
[WhiteElo "2600"]
[BlackElo "2625"]
[ECO "B26"]
[EventDate "1979.09.23"]
[PlyCount "123"]

1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 e6 6.Be3 d6 7.Qd2 Nge7 8.Nh3 O-O 
9.Bh6 Bxh6 10.Qxh6 f6 11.O-O Nd4 12.Qd2 e5 13.f4 Qb6 14.Rab1 c4 15.Kh1 
cxd3 16.cxd3 Be6 17.Rf2 Kg7 18.Rbf1 Rac8 19.Ng1 Qc5 20.Nf3 Nxf3 21.Rxf3 b5
22.a3 a5 23.R3f2 b4 24.axb4 axb4 25.Nd1 Bd7 26.Ne3 Qd4 27.Nc4 Qc5 28.Rc1 
Rc7 29.Rff1 Rfc8 30.h4 Qd4 31.fxe5 dxe5 32.Qxb4 Be6 33.Rc3 Ng8 34.Rfc1 Rd8
35.Qb6 Rxc4 36.Qxe6 Rxc3 37.Rxc3 Qa7 38.Kh2 Ne7 39.Ra3 Qd7 40.Bh3 Qc7 41.
Ra6 Ng8 42.Qc4 Qxc4 43.dxc4 Rd2+ 44.Kg1 Rxb2 45.Ra7+ Kf8 46.Rxh7 Rb6 47.c5
Rc6 48.Bd7 Rxc5 49.Be6 Rc6 50.Bd5 Rc1+ 51.Kg2 Rc2+ 52.Kf1 Nh6 53.h5 Ng4 
54.Rf7+ Ke8 55.hxg6 Ne3+ 56.Kg1 Rg2+ 57.Kh1 Rxg3 58.Bc6+ Kd8 59.g7 Rg6 60.
Bd7 Rg5 61.Bh3 Nd1 62.Kh2 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.25"]
[Round "3"]
[White "Portisch, Lajos"]
[Black "Ivkov, Borislav"]
[Result "1-0"]
[WhiteElo "2640"]
[BlackElo "2525"]
[ECO "D31"]
[EventDate "1979.09.23"]
[PlyCount "81"]

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 Nf8 10.h4 Bxh4 11.Qb3 Bxg3 12.Bxg3 Qb6 13.Qa3 Ne7 14.Na4 Qd8 15.
Nc5 Qb6 16.Na4 Qd8 17.Nc5 Qb6 18.Be5 f6 19.Bh2 Bf7 20.Bd6 Nfg6 21.Bd3 Nc8 
22.Bg3 a5 23.O-O Nge7 24.Rfe1 Ra7 25.Qc3 a4 26.Rab1 Qd8 27.Bb8 b5 28.Bxa7 
Nxa7 29.b3 axb3 30.axb3 O-O 31.Ra1 Nec8 32.Bf5 Re8 33.Ra6 Qc7 34.Rea1 Re7 
35.Nd3 Be8 36.Qc5 Qb7 37.Nb4 Rc7 38.Be6+ Bf7 39.Bxc8 Nxc8 40.Rxc6 Rxc6 41.
Nxc6 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.25"]
[Round "3"]
[White "Petrosian, Tigran"]
[Black "Vaganian, Rafael"]
[Result "1/2-1/2"]
[WhiteElo "2610"]
[BlackElo "2570"]
[ECO "D59"]
[EventDate "1979.09.23"]
[PlyCount "24"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 h6 6.Bh4 O-O 7.e3 b6 8.cxd5 Nxd5
9.Bxe7 Qxe7 10.Nxd5 exd5 11.Qd2 a5 12.Rc1 Be6 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.25"]
[Round "3"]
[White "Kagan, Shimon"]
[Black "Shamkovich, Leonid"]
[Result "1/2-1/2"]
[WhiteElo "2445"]
[BlackElo "2495"]
[ECO "B80"]
[EventDate "1979.09.23"]
[PlyCount "121"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g3 a6 7.Bg2 Qc7 8.O-O Be7
9.Nde2 O-O 10.b3 Nc6 11.Bb2 b5 12.Rc1 Bb7 13.Nf4 Rad8 14.a3 Ne5 15.Qe2 Bc6
16.Nd3 Qb6 17.h3 Rfe8 18.Kh2 Bf8 19.f4 Ng6 20.e5 Bxg2 21.Qxg2 dxe5 22.fxe5
Nd5 23.Nxd5 Rxd5 24.Qf3 Rd7 25.Rce1 Rc8 26.Re2 Bc5 27.h4 Qb7 28.Qg4 Bf8 
29.Nf2 Rdc7 30.h5 Ne7 31.Ne4 Nf5 32.Rff2 h6 33.Qf4 Be7 34.g4 Bg5 35.Nxg5 
hxg5 36.Qxg5 Nh6 37.Qf4 Rd7 38.Qg3 Rd1 39.Rg2 Rcd8 40.Bc3 Qe7 41.Bd2 Ra1 
42.Re1 Rxe1 43.Qxe1 Rd4 44.Kh3 Qb7 45.Bxh6 gxh6 46.Qe3 Qe4 47.Qxe4 Rxe4 
48.Rd2 Rxe5 49.Rd6 Re3+ 50.Kh4 Rc3 51.Rxa6 Rxc2 52.Ra5 Ra2 53.b4 Kg7 54.
Kg3 Kf6 55.Rxb5 Rxa3+ 56.Kf4 Ra1 57.Rb8 Rc1 58.b5 Rc4+ 59.Kg3 Rb4 60.b6 
Kg7 61.Kf3 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.25"]
[Round "3"]
[White "Bronstein, Luis Marcos"]
[Black "Torre, Eugenio"]
[Result "0-1"]
[WhiteElo "2420"]
[BlackElo "2520"]
[ECO "B08"]
[EventDate "1979.09.23"]
[PlyCount "80"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.Be2 O-O 6.O-O c5 7.dxc5 dxc5 8.Bg5 
Nc6 9.h3 Be6 10.Qc1 Nd4 11.Re1 Re8 12.Bh6 Nxc2 13.Rd1 Nd4 14.Bxg7 Kxg7 15.
e5 Nd7 16.Nxd4 cxd4 17.Rxd4 Qc7 18.Bb5 Red8 19.Bxd7 Rxd7 20.Rh4 h5 21.Qg5 
f6 22.Qe3 Bf5 23.g4 g5 24.exf6+ exf6 25.gxf5 gxh4 26.Kh1 Qe5 27.Rg1+ Kh8 
28.Qf3 Rg8 29.Qxh5+ Rh7 30.Rxg8+ Kxg8 31.Qg4+ Rg7 32.Qc4+ Kh8 33.Qxh4+ Rh7
34.Qg3 Qxg3 35.fxg3 Rxh3+ 36.Kg2 Rh5 37.g4 Rh4 38.Kg3 Rh1 39.Nd5 Kg7 40.
Kf4 Rh2 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.25"]
[Round "3"]
[White "Harandi, Khosro"]
[Black "Garcia Gonzales, Guillermo"]
[Result "1-0"]
[WhiteElo "2410"]
[BlackElo "2490"]
[ECO "B46"]
[EventDate "1979.09.23"]
[PlyCount "81"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be2 Nge7 7.Nb3 b5 8.a3 
Ng6 9.O-O Be7 10.f4 O-O 11.Be3 d6 12.Bd3 Bf6 13.Qh5 Nge7 14.Rad1 g6 15.Qf3
Qc7 16.Rf2 Rb8 17.Bf1 Bg7 18.Rfd2 b4 19.axb4 Nxb4 20.Nd4 e5 21.Nde2 f5 22.
fxe5 dxe5 23.Nd5 Nexd5 24.exd5 Bb7 25.Qf2 Ba8 26.Nc3 Rfd8 27.Qh4 Rd6 28.
Qc4 Qxc4 29.Bxc4 Rc8 30.b3 e4 31.Ne2 Be5 32.c3 Rxc4 33.bxc4 Nd3 34.Rxd3 
exd3 35.Rxd3 Bb7 36.Bf4 Bxf4 37.Nxf4 g5 38.Ne6 h6 39.Kf2 Kf7 40.Ke3 Ke7 
41.Kd4 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.25"]
[Round "3"]
[White "Hebert, Jean"]
[Black "Smejkal, Jan"]
[Result "0-1"]
[WhiteElo "2365"]
[BlackElo "2550"]
[ECO "C91"]
[EventDate "1979.09.23"]
[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.d4 Bg4 10.Be3 exd4 11.cxd4 d5 12.e5 Ne4 13.h3 Bh5 14.Nc3 Nxc3 15.bxc3 
Na5 16.Bf4 Nxb3 17.axb3 a5 18.Bc1 Qd7 19.Qe2 a4 20.bxa4 Rxa4 21.Rb1 c6 22.
Qe3 Qf5 23.Rb3 Bxf3 24.Qxf3 Qxf3 25.gxf3 Ra1 26.Kf1 Rfa8 27.Bb2 Rxe1+ 28.
Kxe1 Kf8 29.Ke2 Ke8 30.f4 g6 31.Kf3 Kd7 32.Kg4 h5+ 33.Kg3 Ke6 34.Kf3 Kf5 
35.Ke3 Bf8 36.Kf3 Ra2 37.Bc1 Ra1 38.Be3 Ba3 39.Bd2 Ra2 40.Be3 Bb2 41.Bd2 
0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.25"]
[Round "3"]
[White "Velimirovic, Dragoljub"]
[Black "Huebner, Robert"]
[Result "1/2-1/2"]
[WhiteElo "2515"]
[BlackElo "2595"]
[ECO "B80"]
[EventDate "1979.09.23"]
[PlyCount "100"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be3 Be7 7.g4 h6 8.Rg1 a6 
9.Qf3 Qc7 10.h4 Nfd7 11.g5 Ne5 12.Qg3 hxg5 13.Bxg5 Bxg5 14.hxg5 Nbc6 15.
Nb3 Bd7 16.O-O-O O-O-O 17.f4 Ng6 18.Be2 Nce7 19.Rd4 Nxf4 20.Qxf4 e5 21.
Qxf7 exd4 22.Nxd4 Nc6 23.Nf5 Bxf5 24.Qxc7+ Kxc7 25.Nd5+ Kd7 26.exf5 Ne5 
27.g6 Rh2 28.Bf1 Re8 29.Bg2 Nc4 30.c3 Re2 31.Nf4 Rhxg2 32.Nxg2 Rf2 33.b3 
Ne5 34.Ne3 Nd3+ 35.Kb1 Rf3 36.Kc2 Rxe3 37.f6 Nc5 38.f7 Rf3 39.Rh1 Rf2+ 40.
Kd1 Ne6 41.Rh8 Rf6 42.Re8 d5 43.a4 Kd6 44.a5 Ke5 45.c4 dxc4 46.bxc4 Kf5 
47.c5 Kxg6 48.Rxe6 Kxf7 49.Rb6 Rc6 50.Rxb7+ Ke6 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.27"]
[Round "4"]
[White "Garcia Gonzales, Guillermo"]
[Black "Balashov, Yury"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2600"]
[ECO "D58"]
[EventDate "1979.09.23"]
[PlyCount "87"]

1.c4 e6 2.Nc3 d5 3.d4 Nf6 4.Nf3 Be7 5.Bg5 h6 6.Bh4 O-O 7.e3 b6 8.Rc1 Bb7 
9.Bxf6 Bxf6 10.cxd5 exd5 11.Be2 Qe7 12.O-O Rd8 13.Qd2 Nd7 14.Rfd1 c5 15.
Qe1 Nf8 16.Qf1 Ne6 17.Ba6 Bc6 18.b3 cxd4 19.exd4 Qd6 20.Kh1 Nc7 21.Bd3 Bd7
22.h3 Rac8 23.Rc2 Ne6 24.Ba6 Rb8 25.a4 Re8 26.g3 Nc7 27.Bd3 Re7 28.Kh2 Rd8
29.Rdd2 Ne6 30.Bb5 Ng5 31.Nxg5 Bxg5 32.f4 Bf6 33.Bxd7 Qxd7 34.Qd3 h5 35.
Kg2 g6 36.Re2 Rxe2+ 37.Rxe2 Rc8 38.f5 Kg7 39.fxg6 fxg6 40.Qf3 Rd8 41.Qf4 
Qd6 42.Qxd6 Rxd6 43.Nb5 Rd7 44.Rc2 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.27"]
[Round "4"]
[White "Ivkov, Borislav"]
[Black "Velimirovic, Dragoljub"]
[Result "1/2-1/2"]
[WhiteElo "2525"]
[BlackElo "2515"]
[ECO "B39"]
[EventDate "1979.09.23"]
[PlyCount "29"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Bg7 6.Be3 Nf6 7.Nc3 Ng4 8.Qxg4 
Nxd4 9.Qd1 e5 10.Bd3 O-O 11.O-O d6 12.Rc1 a6 13.Nd5 Be6 14.Qd2 Bxd5 15.
cxd5 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.27"]
[Round "4"]
[White "Timman, Jan"]
[Black "Petrosian, Tigran"]
[Result "1/2-1/2"]
[WhiteElo "2625"]
[BlackElo "2610"]
[ECO "E81"]
[EventDate "1979.09.23"]
[PlyCount "44"]

1.c4 g6 2.d4 Bg7 3.Nc3 d6 4.e4 Nf6 5.f3 c6 6.Be3 O-O 7.Bd3 a6 8.Nge2 b5 9.
Qd2 Nbd7 10.b3 e5 11.d5 cxd5 12.cxd5 Nc5 13.Bc2 Nh5 14.O-O f5 15.b4 Nd7 
16.exf5 gxf5 17.Rac1 Nb6 18.Bb3 Nf6 19.Kh1 f4 20.Bxb6 Qxb6 21.Bc2 Qe3 22.
Qxe3 fxe3 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.27"]
[Round "4"]
[White "Smejkal, Jan"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[WhiteElo "2550"]
[BlackElo "2640"]
[ECO "D85"]
[EventDate "1979.09.23"]
[PlyCount "45"]

1.c4 c5 2.Nf3 Nf6 3.Nc3 d5 4.cxd5 Nxd5 5.d4 Nxc3 6.bxc3 g6 7.e4 Bg7 8.Bb5+
Nc6 9.O-O cxd4 10.cxd4 O-O 11.Bxc6 bxc6 12.Ba3 Bg4 13.Bc5 Re8 14.Rb1 Qd7 
15.Rb4 a5 16.Ra4 Qb7 17.h3 Bxf3 18.Qxf3 e5 19.Rc4 exd4 20.Bxd4 Bxd4 21.
Rxd4 Qb2 22.Ra4 Red8 23.Qb3 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.27"]
[Round "4"]
[White "Huebner, Robert"]
[Black "Bronstein, Luis Marcos"]
[Result "1-0"]
[WhiteElo "2595"]
[BlackElo "2420"]
[ECO "D16"]
[EventDate "1979.09.23"]
[PlyCount "61"]

1.Nf3 Nf6 2.c4 c6 3.d4 d5 4.Nc3 dxc4 5.a4 Na6 6.e4 Bg4 7.Bxc4 e6 8.Be3 Nb4
9.Be2 a5 10.O-O Be7 11.h3 Bh5 12.Rc1 Bg6 13.Nd2 Nd7 14.Nc4 O-O 15.Qd2 f5 
16.f3 Nf6 17.Ne5 Qe8 18.Bc4 Bd8 19.Rce1 Bc7 20.Nxg6 hxg6 21.Bg5 Kh8 22.
exf5 gxf5 23.Rxe6 Qg6 24.Re7 Bb6 25.Be3 Rad8 26.Ne2 Nfd5 27.Rxb7 f4 28.
Bxf4 c5 29.Be5 Rg8 30.Nf4 Qh6 31.Rd1 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.27"]
[Round "4"]
[White "Sax, Gyula"]
[Black "Hebert, Jean"]
[Result "1-0"]
[WhiteElo "2590"]
[BlackElo "2365"]
[ECO "B82"]
[EventDate "1979.09.23"]
[PlyCount "73"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.f4 Nc6 7.Be3 Bd7 8.Qf3 e5
9.Nxc6 Bxc6 10.O-O-O Qa5 11.Bc4 Be7 12.Bb3 O-O 13.f5 b5 14.Bg5 b4 15.Bxf6 
Bxf6 16.Nd5 Bxd5 17.Bxd5 Rac8 18.h4 Kh8 19.Kb1 Qc7 20.Bb3 a5 21.g4 Be7 22.
g5 f6 23.Qh5 Bd8 24.Rhg1 Qe7 25.Rg3 Bb6 26.Rd2 Bd4 27.Rdg2 a4 28.Be6 Rb8 
29.gxf6 Qxf6 30.Rxg7 Qxg7 31.Rxg7 Kxg7 32.Qg5+ Kh8 33.h5 Rb7 34.h6 Bc5 35.
f6 Rff7 36.Bd5 Rbc7 37.Qg4 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.27"]
[Round "4"]
[White "Sunye Neto, Jaime"]
[Black "Harandi, Khosro"]
[Result "1-0"]
[WhiteElo "2375"]
[BlackElo "2410"]
[ECO "E18"]
[EventDate "1979.09.23"]
[PlyCount "80"]

1.c4 Nf6 2.Nf3 b6 3.g3 Bb7 4.Bg2 e6 5.O-O Be7 6.d4 O-O 7.Nc3 Ne4 8.Bd2 d6 
9.Ne1 Nxc3 10.Bxc3 Bxg2 11.Nxg2 Bf6 12.Qd3 c5 13.Rad1 Nd7 14.Ne3 cxd4 15.
Bxd4 Nc5 16.Qc3 Bxd4 17.Qxd4 Nb7 18.f4 f5 19.Nc2 Qf6 20.b3 Rac8 21.e4 
Qxd4+ 22.Nxd4 fxe4 23.Nxe6 Rfe8 24.Nd4 a6 25.Rf2 Rc5 26.Nc2 b5 27.Ne3 bxc4
28.Nxc4 Rd8 29.Rfd2 Kf8 30.Rd4 Rcc8 31.Kf2 Nc5 32.Nxd6 Nd3+ 33.R4xd3 exd3 
34.Nxc8 Rxc8 35.Ke3 Rc2 36.Rd2 Rc1 37.Kxd3 Ke7 38.Rc2 Rd1+ 39.Kc4 Rd7 40.
Kb4 Rd5 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.27"]
[Round "4"]
[White "Torre, Eugenio"]
[Black "Kagan, Shimon"]
[Result "1/2-1/2"]
[WhiteElo "2520"]
[BlackElo "2445"]
[ECO "B38"]
[EventDate "1979.09.23"]
[PlyCount "86"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Bg7 6.Be3 d6 7.Be2 Nf6 8.Nc3 
Bd7 9.O-O O-O 10.Qd2 Nxd4 11.Bxd4 Bc6 12.f3 a5 13.Kh1 a4 14.b4 axb3 15.
axb3 Qc7 16.b4 b6 17.Qb2 Nh5 18.Bxg7 Nxg7 19.Nd5 Qb7 20.Rad1 Ra7 21.Qd4 
Ra2 22.Bd3 Bxd5 23.cxd5 Nh5 24.Bb5 Qa7 25.Ra1 Ra8 26.Rxa2 Qxa2 27.Qxb6 Qd2
28.Ba6 Nf4 29.Rg1 Nxg2 30.Qb7 Rf8 31.Qxe7 Ne1 32.Qxd6 Nxf3 33.Rf1 Nd4 34.
Qe7 Nc2 35.Qf6 Ne3 36.Rg1 Qxb4 37.Qf3 Nc2 38.Rf1 Nd4 39.Qf4 Nb3 40.e5 Qc5 
41.Rd1 Qc2 42.Rf1 Qc5 43.Rd1 Qc2 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.28"]
[Round "5"]
[White "Balashov, Yury"]
[Black "Sunye Neto, Jaime"]
[Result "0-1"]
[WhiteElo "2600"]
[BlackElo "2375"]
[ECO "B92"]
[EventDate "1979.09.23"]
[PlyCount "82"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be7 8.O-O 
O-O 9.a4 Nc6 10.Kh1 b6 11.Bg5 Nb4 12.Qd2 Bb7 13.Rad1 Rc8 14.Bxf6 Bxf6 15.
Bg4 Rc6 16.Qe2 Qc7 17.Nc1 Rd8 18.Nd3 Rxc3 19.bxc3 Na2 20.Ra1 Nxc3 21.Qe3 
Bxe4 22.f4 Bb7 23.fxe5 dxe5 24.Rae1 Qc6 25.Qg3 Ne4 26.Rxe4 Qxe4 27.Rxf6 
Qxg2+ 28.Qxg2 Bxg2+ 29.Kxg2 gxf6 30.Be2 Rd4 31.Nb2 Rd2 32.Kf2 Rxc2 33.Nc4 
b5 34.axb5 axb5 35.Na3 Ra2 36.Nxb5 Kg7 37.Nd6 Kg6 38.Nc4 e4 39.Ke3 f5 40.
Bf1 Rxh2 41.Nd6 Ra2 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.28"]
[Round "5"]
[White "Bronstein, Luis Marcos"]
[Black "Ivkov, Borislav"]
[Result "1/2-1/2"]
[WhiteElo "2420"]
[BlackElo "2525"]
[ECO "C75"]
[EventDate "1979.09.23"]
[PlyCount "152"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3 Bd7 6.d4 Nge7 7.dxe5 Nxe5 8.Bb3 
N7g6 9.O-O Bb5 10.Re1 Nxf3+ 11.Qxf3 Ne5 12.Qg3 h5 13.h4 Be7 14.Bg5 Bxg5 
15.Qxg5 Qxg5 16.hxg5 Nd3 17.Re3 Nxb2 18.Nd2 Na4 19.e5 d5 20.Bxd5 Rd8 21.c4
Bxc4 22.Bxc4 Rxd2 23.e6 f5 24.gxf6 gxf6 25.e7 Nb6 26.Bd3 Rg8 27.Be2 Rh8 
28.Re1 Nd5 29.Rb3 b5 30.Ra3 Nb4 31.Bxb5+ c6 32.Rxa6 Nxa6 33.Bxc6+ Rd7 34.
Re6 Nc7 35.Bxd7+ Kxd7 36.Rxf6 Kxe7 37.Rf4 Ne6 38.Re4 Kf6 39.a4 Rb8 40.Kh2 
Rb2 41.Kg3 Ra2 42.Rc4 Kg5 43.f4+ Kf5 44.Rb4 Ng7 45.Kh3 Ra3+ 46.g3 Ne8 47.
Rb5+ Kg6 48.Rg5+ Kh6 49.a5 Nf6 50.Rb5 Ra2 51.Rb6 Kg6 52.a6 Kf5 53.Rb5+ Kg6
54.Rb6 Ra5 55.Re6 Ra3 56.Rb6 Kf5 57.Rb5+ Kg6 58.Rb6 Ra1 59.Rc6 Kf5 60.Rc5+
Ke4 61.Kh4 Rxa6 62.Kg5 Kd4 63.Rb5 Ke3 64.Rb3+ Kf2 65.f5 Ne4+ 66.Kxh5 Nxg3+
67.Kg5 Ra5 68.Kg4 Ra4+ 69.Kg5 Ne4+ 70.Kg6 Ra6+ 71.Kg7 Nd6 72.Kg6 Ne4+ 73.
Kg7 Ng3 74.Rxg3 Kxg3 75.f6 Kg4 76.f7 Ra7 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.28"]
[Round "5"]
[White "Petrosian, Tigran"]
[Black "Garcia Gonzales, Guillermo"]
[Result "1-0"]
[WhiteElo "2610"]
[BlackElo "2490"]
[ECO "E91"]
[EventDate "1979.09.23"]
[PlyCount "135"]

1.d4 Nf6 2.c4 c5 3.d5 d6 4.Nc3 g6 5.e4 Bg7 6.Nf3 O-O 7.Be2 e6 8.O-O Re8 9.
Nd2 Na6 10.dxe6 Bxe6 11.Nb3 Qb6 12.Bg5 Qc6 13.Nd2 Nd7 14.f4 Bxc3 15.bxc3 
f6 16.Bh4 Bf7 17.Bg4 Rad8 18.Qf3 Nab8 19.a4 a5 20.Qd3 Kg7 21.Rfb1 b6 22.
Bf3 Qc7 23.Nf1 Nc6 24.Ne3 Ne7 25.Rd1 Nf8 26.Bg3 Qa7 27.Rd2 Ne6 28.Rad1 g5 
29.fxg5 Nxg5 30.Qf1 Bg6 31.e5 Ng8 32.Bc6 Ne4 33.Bxe4 Bxe4 34.exf6+ Nxf6 
35.Bh4 Rf8 36.Rf2 Qe7 37.Re1 Qe5 38.Rf4 Nh5 39.Rg4+ Bg6 40.Nf5+ Rxf5 41.
Qd3 Nf4 42.Rxe5 Nxd3 43.Rxf5 Rf8 44.Rxf8 Kxf8 45.Bd8 Nb2 46.Bxb6 Nxa4 47.
Bxa5 Ke7 48.h4 Nb2 49.h5 Bxh5 50.Rg7+ Bf7 51.Bd8+ Ke8 52.Rxh7 Nxc4 53.Rh8+
Kd7 54.Bh4 Ne3 55.Bg3 Nf5 56.Rh3 Ke6 57.Bf4 Ne7 58.Kf2 Nd5 59.Bh2 Bg6 60.
Ke2 c4 61.Kd2 Be4 62.Rh6+ Kf5 63.Rh5+ Kg4 64.Rh8 Bxg2 65.Rg8+ Kf3 66.Bxd6 
Bf1 67.Rf8+ Kg2 68.Rf5 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.28"]
[Round "5"]
[White "Portisch, Lajos"]
[Black "Sax, Gyula"]
[Result "1-0"]
[WhiteElo "2640"]
[BlackElo "2590"]
[ECO "A10"]
[EventDate "1979.09.23"]
[PlyCount "59"]

1.c4 g6 2.e4 e5 3.d4 Nf6 4.Nf3 Bb4+ 5.Bd2 Bxd2+ 6.Qxd2 Nxe4 7.Qe3 d5 8.
dxe5 Nc6 9.Na3 Bf5 10.Nc2 Ng5 11.Nxg5 Bxc2 12.e6 Bf5 13.exf7+ Kf8 14.O-O-O
d4 15.Qf4 Qe7 16.g4 h6 17.Nh3 Be6 18.Re1 g5 19.Qg3 Qxf7 20.b3 a5 21.Bg2 
Bxc4 22.Bxc6 bxc6 23.bxc4 Qxc4+ 24.Kb1 d3 25.Qe5 Rb8+ 26.Ka1 Rh7 27.Re4 
Qc2 28.Rhe1 Kg8 29.Qe6+ Rf7 30.Qg6+ 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.28"]
[Round "5"]
[White "Shamkovich, Leonid"]
[Black "Torre, Eugenio"]
[Result "1-0"]
[WhiteElo "2495"]
[BlackElo "2520"]
[ECO "B08"]
[EventDate "1979.09.23"]
[PlyCount "83"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.Be2 O-O 6.O-O c6 7.h3 Nbd7 8.e5 Ne8 
9.Bc4 Nb6 10.Bb3 Nc7 11.Bg5 Ne6 12.Bh4 d5 13.Ne2 f6 14.exf6 exf6 15.Qd2 
Bd7 16.Rfe1 Be8 17.Nc1 Qd7 18.Nd3 Rd8 19.Rad1 Bf7 20.Nc5 Nxc5 21.dxc5 Nc8 
22.c3 Rfe8 23.Bc2 Rxe1+ 24.Rxe1 Re8 25.Rxe8+ Qxe8 26.Nd4 Kh8 27.Kf1 Ne7 
28.Qe3 Qd7 29.Qf4 Ng8 30.Qb8 a6 31.Bg3 Bh6 32.Nb3 Be6 33.Nd4 Bf7 34.Bd1 
Bc1 35.Bg4 Qe7 36.Bd6 Qe4 37.Qxb7 Bd2 38.Kg1 Qe1+ 39.Kh2 Qxf2 40.Nf3 Nh6 
41.Qc8+ Ng8 42.Qf8 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.28"]
[Round "5"]
[White "Hebert, Jean"]
[Black "Vaganian, Rafael"]
[Result "1/2-1/2"]
[WhiteElo "2365"]
[BlackElo "2570"]
[ECO "A07"]
[EventDate "1979.09.23"]
[PlyCount "37"]

1.Nf3 Nf6 2.g3 d5 3.Bg2 c6 4.O-O Bg4 5.d3 Nbd7 6.Nbd2 e6 7.b3 a5 8.a3 Bc5 
9.Bb2 Qe7 10.e4 dxe4 11.dxe4 e5 12.b4 Bb6 13.c4 O-O 14.c5 Bc7 15.Qc2 Ra7 
16.h3 Bxf3 17.Bxf3 Rfa8 18.Nc4 h5 19.h4 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.28"]
[Round "5"]
[White "Kagan, Shimon"]
[Black "Huebner, Robert"]
[Result "0-1"]
[WhiteElo "2445"]
[BlackElo "2595"]
[ECO "B80"]
[EventDate "1979.09.23"]
[PlyCount "112"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.g3 e6 7.Bg2 Qc7 8.O-O Be7
9.Re1 O-O 10.h3 Bd7 11.g4 Nc6 12.Nxc6 Bxc6 13.a4 Rac8 14.Qe2 Rfe8 15.g5 
Nd7 16.Be3 Qa5 17.Qd2 Bf8 18.Red1 Ne5 19.b3 Ng6 20.Rac1 Nh4 21.Bh1 b5 22.
axb5 axb5 23.Ra1 Qc7 24.Qe2 b4 25.Qg4 Ng6 26.Ra7 Qb8 27.Ne2 Bb5 28.Rd2 Ne5
29.Qg2 Rc7 30.Rxc7 Qxc7 31.Nd4 Bd7 32.f4 Ng6 33.Qf2 Ra8 34.Bg2 e5 35.fxe5 
dxe5 36.Nf5 Nf4 37.Kh2 Ra2 38.Bf1 Be6 39.h4 Qc6 40.Rd8 Bxf5 41.exf5 Rxc2 
42.Rd2 Rc3 43.Bxf4 exf4 44.Bc4 Qe4 45.f6 Qf5 46.Bf1 gxf6 47.gxf6 Rxb3 48.
Qd4 Rg3 49.Rf2 Rg4 50.Rg2 h5 51.Rg1 Qc5 52.Qxc5 Bxc5 53.Rg2 Rxg2+ 54.Kxg2 
b3 55.Kf3 b2 56.Bd3 Be3 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.28"]
[Round "5"]
[White "Velimirovic, Dragoljub"]
[Black "Smejkal, Jan"]
[Result "1-0"]
[WhiteElo "2515"]
[BlackElo "2550"]
[ECO "C44"]
[EventDate "1979.09.23"]
[PlyCount "75"]

1.e4 e5 2.Nf3 Nc6 3.c3 Nf6 4.d4 Nxe4 5.d5 Ne7 6.Nxe5 Ng6 7.Qd4 Qf6 8.Qxe4 
Qxe5 9.Qxe5+ Nxe5 10.Nd2 d6 11.Nc4 Nxc4 12.Bxc4 Be7 13.O-O O-O 14.Re1 Bf6 
15.a4 a6 16.a5 Bd7 17.Be3 Rae8 18.f3 Re7 19.Kf2 Rfe8 20.Ba7 Be5 21.g3 g5 
22.Re2 f5 23.Rae1 Kf7 24.Bd3 Bb5 25.Bxb5 axb5 26.Be3 Bf6 27.Bd4 Be5 28.b3 
Kf6 29.f4 gxf4 30.gxf4 Bxd4+ 31.cxd4 Rxe2+ 32.Rxe2 Re4 33.Rxe4 fxe4 34.Ke3
Kf5 35.b4 h5 36.h4 Kg4 37.Kxe4 Kxh4 38.Kf3 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.29"]
[Round "6"]
[White "Harandi, Khosro"]
[Black "Balashov, Yury"]
[Result "0-1"]
[WhiteElo "2410"]
[BlackElo "2600"]
[ECO "B64"]
[EventDate "1979.09.23"]
[PlyCount "80"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 Be7 8.O-O-O
O-O 9.f4 h6 10.Bxf6 Bxf6 11.Nxc6 bxc6 12.Qxd6 Qb6 13.Qd2 Rb8 14.b3 Rd8 15.
Bd3 e5 16.g3 Bg4 17.Rdf1 Qd4 18.Kb2 c5 19.h3 Bc8 20.Qf2 c4 21.Qxd4 exd4 
22.Nd5 cxd3 23.cxd3 Ba6 24.Rd1 Rdc8 25.h4 Bd8 26.g4 Bb7 27.Nb4 Ba5 28.Nc2 
Bc3+ 29.Kb1 a5 30.a3 Ba6 31.Ka2 Rc7 32.Rh3 h5 33.g5 Bc8 34.f5 g6 35.Rf3 
gxf5 36.exf5 Bb7 37.Rf4 Bd5 38.Rb1 a4 39.Nxd4 Bxd4 40.Rxd4 axb3+ 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.29"]
[Round "6"]
[White "Ivkov, Borislav"]
[Black "Kagan, Shimon"]
[Result "1-0"]
[WhiteElo "2525"]
[BlackElo "2445"]
[ECO "A42"]
[EventDate "1979.09.23"]
[PlyCount "37"]

1.d4 d6 2.c4 g6 3.Nc3 Bg7 4.e4 e5 5.dxe5 dxe5 6.Qxd8+ Kxd8 7.f4 Nd7 8.Nf3 
c6 9.Be2 f6 10.O-O Nh6 11.fxe5 Nxe5 12.Nxe5 fxe5 13.Bg5+ Ke8 14.Rad1 Nf7 
15.Be3 Bf8 16.c5 Be7 17.Nb5 cxb5 18.Bxb5+ Kf8 19.Bh6+ 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.29"]
[Round "6"]
[White "Sunye Neto, Jaime"]
[Black "Petrosian, Tigran"]
[Result "1/2-1/2"]
[WhiteElo "2375"]
[BlackElo "2610"]
[ECO "A15"]
[EventDate "1979.09.23"]
[PlyCount "33"]

1.Nf3 Nf6 2.c4 d6 3.Nc3 Bg4 4.e3 g6 5.Be2 Bg7 6.d4 O-O 7.O-O c6 8.Qc2 Qc7 
9.b3 Re8 10.h3 Bc8 11.Ba3 Nbd7 12.Rfd1 Nf8 13.b4 h6 14.e4 a6 15.Rac1 Bd7 
16.c5 d5 17.exd5 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.29"]
[Round "6"]
[White "Vaganian, Rafael"]
[Black "Portisch, Lajos"]
[Result "0-1"]
[WhiteElo "2570"]
[BlackElo "2640"]
[ECO "D41"]
[EventDate "1979.09.23"]
[PlyCount "136"]

1.c4 c5 2.Nc3 Nf6 3.g3 e6 4.Nf3 d5 5.cxd5 Nxd5 6.Bg2 Nc6 7.O-O Be7 8.d4 
O-O 9.e4 Ndb4 10.dxc5 Bxc5 11.a3 Nd3 12.Qe2 Nxc1 13.Raxc1 e5 14.Rfd1 Bd4 
15.h3 a6 16.Nxd4 Nxd4 17.Qe3 Be6 18.f4 f6 19.Ne2 Nxe2+ 20.Qxe2 Qb6+ 21.Qf2
Qb3 22.Rd6 Rac8 23.Rxc8 Rxc8 24.f5 Bf7 25.Qb6 Rc1+ 26.Kh2 Qxb6 27.Rxb6 Rc7
28.g4 Be8 29.Kg3 Bb5 30.Kf3 Rd7 31.h4 h6 32.Kg3 Kf7 33.Bf3 Bc6 34.Kf2 Rd2+
35.Ke3 Rh2 36.h5 Ke7 37.Rb3 Bb5 38.Bd1 Kd8 39.Bf3 Kc7 40.Bd1 Bc6 41.Bf3 a5
42.Bd1 Rg2 43.Bf3 Rc2 44.Bd1 Rh2 45.Bf3 b6 46.Be2 Bxe4 47.Rc3+ Kb7 48.Rc1 
Rh1 49.Bf1 Bd5 50.Rd1 Bc6 51.b4 axb4 52.axb4 b5 53.Kf2 Rh2+ 54.Kg3 Rb2 55.
Rd8 Rb3+ 56.Kh4 Rxb4 57.Rg8 Rd4 58.Rxg7+ Kb6 59.Bxb5 Kxb5 60.Kg3 Rd3+ 61.
Kh2 Kc5 62.Rg6 Bf3 63.g5 fxg5 64.Rxh6 Bg4 65.f6 Be6 66.Rh8 g4 67.h6 g3+ 
68.Kg1 Bh3 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.29"]
[Round "6"]
[White "Huebner, Robert"]
[Black "Shamkovich, Leonid"]
[Result "1-0"]
[WhiteElo "2595"]
[BlackElo "2495"]
[ECO "B67"]
[EventDate "1979.09.23"]
[PlyCount "95"]

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 h6 10.Bh4 b5 11.Bxf6 gxf6 12.g3 Qb6 13.Nb3 h5 14.Kb1 O-O-O 15.f5 
Kb8 16.Ne2 Bc8 17.Nf4 d5 18.fxe6 fxe6 19.exd5 Nb4 20.Bg2 e5 21.a3 Nxc2 22.
Qxc2 exf4 23.Nd4 Bb7 24.gxf4 Bd6 25.Qf5 Ka8 26.Ne6 Rc8 27.Qxf6 b4 28.axb4 
Rhg8 29.Bf3 Qf2 30.Nd4 Bxb4 31.Rhf1 Qxh2 32.Nc6 Bc5 33.Qc3 Bd6 34.Qd4 Bb8 
35.Be4 Rge8 36.Rc1 Qe2 37.Rfe1 Qg4 38.f5 Qf4 39.Rc4 Qd6 40.Ra4 Rc7 41.Rc1 
Rd7 42.Qb6 Qf4 43.Rcc4 Qd6 44.Rcb4 h4 45.Rb3 h3 46.Rba3 Ree7 47.f6 Rf7 48.
Rxh3 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.29"]
[Round "6"]
[White "Timman, Jan"]
[Black "Hebert, Jean"]
[Result "1/2-1/2"]
[WhiteElo "2625"]
[BlackElo "2365"]
[ECO "D17"]
[EventDate "1979.09.23"]
[PlyCount "145"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.Ne5 Nbd7 7.Nxc4 Qc7 8.g3 
e5 9.dxe5 Nxe5 10.Bf4 Nfd7 11.Bg2 Be6 12.Nxe5 Nxe5 13.O-O f6 14.Qc2 Bd6 
15.Ne4 O-O 16.a5 a6 17.Rfd1 Rad8 18.Be3 Nc4 19.Bc5 Bxc5 20.Nxc5 Bf7 21.b4 
Ne5 22.Bh3 Rfe8 23.Rxd8 Rxd8 24.Rd1 g6 25.Rd2 Kg7 26.Qd1 Rd5 27.Be6 Rxd2 
28.Qxd2 Qe7 29.Qa2 Nd7 30.Bxf7 Nxc5 31.bxc5 Qxf7 32.Qb2 g5 33.e4 Qe7 34.
Qd4 Qc7 35.Qc3 g4 36.Kg2 h5 37.h3 Kg6 38.hxg4 hxg4 39.Kf1 Qe7 40.Qc4 Kg7 
41.e5 Qxe5 42.Qxg4+ Kf7 43.Qd7+ Qe7 44.Qd4 Qc7 45.Qc4+ Kg7 46.Qb4 Qe7 47.
Kg2 Qd7 48.f3 Qc7 49.Kf2 Kf7 50.f4 Qd7 51.Qb3+ Kg7 52.Kf3 Qe7 53.Qe3 Qd8 
54.Qb3 Qe7 55.Qb4 Qd7 56.Kf2 Kh6 57.Qc3 Kg7 58.Qe3 Kf7 59.Qb3+ Kg7 60.Ke3 
Qe7+ 61.Kf3 Qd7 62.g4 Qe7 63.Qe3 Qd7 64.Kg3 Kf7 65.Qb3+ Kg7 66.Qe3 Kf7 67.
Qe4 Qd1 68.Kh4 Qd2 69.Qh7+ Kf8 70.Qh6+ Kf7 71.Qh7+ Kf8 72.Qh8+ Kf7 73.Qh7+
1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.29"]
[Round "6"]
[White "Sax, Gyula"]
[Black "Velimirovic, Dragoljub"]
[Result "1-0"]
[WhiteElo "2590"]
[BlackElo "2515"]
[ECO "B33"]
[EventDate "1979.09.23"]
[PlyCount "101"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Ndb5 d6 7.Bf4 e5 8.Bg5 
a6 9.Na3 d5 10.Nxd5 Bxa3 11.bxa3 Qa5+ 12.Qd2 Qxd2+ 13.Bxd2 Nxd5 14.exd5 
Nd4 15.O-O-O Bf5 16.c3 Rc8 17.Kb2 Nb5 18.Re1 f6 19.f4 O-O 20.c4 Rfe8 21.g4
Bg6 22.f5 Nd6 23.fxg6 Nxc4+ 24.Bxc4 Rxc4 25.gxh7+ Kxh7 26.Be3 Rd8 27.Rd1 
Rxg4 28.Rd2 Rc4 29.Kb3 Rcc8 30.Kb4 Rd7 31.Bb6 Kg6 32.d6 Kf7 33.Bc7 Ke6 34.
a4 e4 35.Kc5 f5 36.Kb6 f4 37.Kxb7 Rf8 38.Kc6 Rff7 39.Rd4 e3 40.Re4+ Kf5 
41.Re8 g5 42.Bd8 e2 43.Bb6 f3 44.h3 a5 45.Bf2 Rh7 46.Rc1 Rdf7 47.Rc5+ Kf4 
48.Rc4+ Kf5 49.Rce4 Rxh3 50.R8e5+ Kf6 51.d7 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.09.29"]
[Round "6"]
[White "Smejkal, Jan"]
[Black "Bronstein, Luis Marcos"]
[Result "1-0"]
[WhiteElo "2550"]
[BlackElo "2420"]
[ECO "A29"]
[EventDate "1979.09.23"]
[PlyCount "81"]

1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3 Nd4 5.Bg2 Nxf3+ 6.Bxf3 Bb4 7.Qb3 a5 8.O-O
O-O 9.d3 h6 10.Na4 Re8 11.Be3 Bf8 12.c5 d5 13.cxd6 Bxd6 14.Rfc1 e4 15.dxe4
Nxe4 16.Rd1 Qe7 17.Rac1 Ng5 18.Bxg5 hxg5 19.Rd3 g4 20.Re3 Be6 21.Bd5 Qg5 
22.Rd1 Bxd5 23.Rxd5 Qg6 24.Qxb7 Qb1+ 25.Kg2 Qxa2 26.Rxa5 Rab8 27.Rxe8+ 
Rxe8 28.Ra8 Rxa8 29.Qxa8+ Bf8 30.Qe4 f5 31.Nc3 Qxb2 32.Qe6+ Kh8 33.Qxf5 
Qxc3 34.Qxf8+ Kh7 35.Qf5+ Kg8 36.Qxg4 c5 37.Qe6+ Kh7 38.Qe4+ Kh8 39.Qh4+ 
Kg8 40.Qd8+ Kf7 41.Qd5+ 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.01"]
[Round "7"]
[White "Shamkovich, Leonid"]
[Black "Ivkov, Borislav"]
[Result "0-1"]
[WhiteElo "2495"]
[BlackElo "2525"]
[ECO "C92"]
[EventDate "1979.09.23"]
[PlyCount "110"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 
9.h3 Nd7 10.d4 Bf6 11.d5 Na5 12.Bc2 c5 13.Nbd2 g6 14.b3 Bg7 15.Nf1 Nb6 16.
Ng3 Bd7 17.Bg5 Qc7 18.Qd2 c4 19.b4 Nb7 20.h4 a5 21.a3 Ra6 22.Be3 Rfa8 23.
Rac1 axb4 24.axb4 Ra2 25.h5 R8a3 26.Bh6 Qd8 27.Bxg7 Kxg7 28.Qe3 Rb2 29.
hxg6 hxg6 30.Ng5 Nc8 31.f4 Qb6 32.Qxb6 Nxb6 33.fxe5 Rxc3 34.Rf1 Be8 35.e6 
f6 36.e5 f5 37.N3e4 fxe4 38.e7 Nxd5 39.Rf8 Nxe7 40.Rxe8 Nf5 41.Rb8 Rcxc2 
42.Rxc2 Rxc2 43.g4 Nd8 44.Rxd8 dxe5 45.Rd7+ Ne7 46.Nxe4 Kf8 47.Rb7 c3 48.
Kf1 Rc1+ 49.Ke2 Nc6 50.Nf6 Rf1 51.Nd7+ Ke8 52.Rc7 Rf4 53.Rxc6 Kxd7 54.Rxg6
Rxb4 55.Kd3 Rc4 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.01"]
[Round "7"]
[White "Petrosian, Tigran"]
[Black "Harandi, Khosro"]
[Result "1-0"]
[WhiteElo "2610"]
[BlackElo "2410"]
[ECO "E12"]
[EventDate "1979.09.23"]
[PlyCount "49"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.cxd5 exd5 7.Bf4 Bd6 8.Bg3 
O-O 9.e3 Ne4 10.Qb3 c6 11.Bd3 Re8 12.Bxe4 dxe4 13.Ne5 Bxe5 14.dxe5 Nd7 15.
Nxe4 Nxe5 16.Rd1 Qc7 17.Nd6 Ba6 18.Nxe8 Rxe8 19.f3 Qc8 20.Bxe5 Rxe5 21.Kf2
h6 22.Rd2 c5 23.Rhd1 Re8 24.Rd7 c4 25.Qb4 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.01"]
[Round "7"]
[White "Portisch, Lajos"]
[Black "Timman, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2640"]
[BlackElo "2625"]
[ECO "E41"]
[EventDate "1979.09.23"]
[PlyCount "47"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Bd3 Nc6 6.Nf3 Bxc3+ 7.bxc3 d6 8.e4 e5
9.h3 h6 10.Be3 Qa5 11.O-O O-O 12.Qb3 Qc7 13.Rae1 b6 14.d5 Ne7 15.Qd1 Ng6 
16.Kh2 Bd7 17.g3 Nh7 18.Nd2 Qc8 19.h4 f5 20.exf5 Bxf5 21.Be2 Qd8 22.Rh1 
Nf4 23.Bf3 Nd3 24.Reg1 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.01"]
[Round "7"]
[White "Velimirovic, Dragoljub"]
[Black "Vaganian, Rafael"]
[Result "0-1"]
[WhiteElo "2515"]
[BlackElo "2570"]
[ECO "C04"]
[EventDate "1979.09.23"]
[PlyCount "76"]

1.e4 e6 2.d4 d5 3.Nd2 Nc6 4.Ngf3 Nf6 5.e5 Nd7 6.Be2 f6 7.exf6 Qxf6 8.Nf1 
Bd6 9.Ne3 O-O 10.O-O Qg6 11.g3 Nf6 12.Nh4 Qe8 13.f4 Ne7 14.Ng4 Ne4 15.Nf3 
c5 16.Bd3 Nf5 17.c3 b6 18.Qe2 Bb7 19.Nge5 a6 20.Be3 c4 21.Bc2 b5 22.g4 Ne7
23.Nd2 Ng6 24.Nxg6 Qxg6 25.Qg2 Rf6 26.Rf2 Raf8 27.Raf1 h6 28.Nxe4 dxe4 29.
h4 h5 30.Bd1 hxg4 31.Bxg4 Qh6 32.Qg3 Bd5 33.Kg2 a5 34.a3 g6 35.Bh3 R8f7 
36.Qg5 Qg7 37.Kh1 Qh8 38.f5 Rh7 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.01"]
[Round "7"]
[White "Bronstein, Luis Marcos"]
[Black "Sax, Gyula"]
[Result "0-1"]
[WhiteElo "2420"]
[BlackElo "2590"]
[ECO "B22"]
[EventDate "1979.09.23"]
[PlyCount "94"]

1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.d4 cxd4 5.Bc4 Nb6 6.Bb3 d6 7.e6 Bxe6 8.Bxe6 
fxe6 9.cxd4 Nc6 10.Nf3 Qd7 11.Nc3 g6 12.h4 Bg7 13.h5 e5 14.d5 Nd4 15.Be3 
Nxf3+ 16.Qxf3 Qf5 17.Qe2 e4 18.Bxb6 axb6 19.hxg6 hxg6 20.Rxh8+ Bxh8 21.
Nxe4 Qxd5 22.Rd1 Qe5 23.Kf1 Ra4 24.Re1 Kf8 25.Qc2 Ra8 26.b3 Qf5 27.Qc7 
Qb5+ 28.Kg1 Qc6 29.Qxc6 bxc6 30.a4 Ra5 31.Rc1 Re5 32.f3 d5 33.Ng3 c5 34.
Kf2 Re6 35.Ne2 Bb2 36.Rb1 Be5 37.Rd1 Rd6 38.Ke3 Bf6 39.g3 e5 40.f4 e4 41.
g4 d4+ 42.Kxe4 Re6+ 43.Kd3 Re3+ 44.Kd2 Rxb3 45.g5 Be7 46.Rc1 Kf7 47.Kc2 
Ra3 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.01"]
[Round "7"]
[White "Hebert, Jean"]
[Black "Garcia Gonzales, Guillermo"]
[Result "0-1"]
[WhiteElo "2365"]
[BlackElo "2490"]
[ECO "B28"]
[EventDate "1979.09.23"]
[PlyCount "120"]

1.e4 c5 2.Nf3 a6 3.c4 d6 4.d4 cxd4 5.Nxd4 Nf6 6.Nc3 Nbd7 7.Be2 b6 8.Be3 
Bb7 9.f3 e6 10.O-O Be7 11.Rc1 O-O 12.Qd2 Re8 13.Rfd1 Qc7 14.Bf2 Rac8 15.b3
Qb8 16.h3 Bf8 17.Bf1 Ne5 18.Re1 Ng6 19.Rcd1 Red8 20.Na4 Nd7 21.Rc1 Ba8 22.
b4 Rc7 23.a3 Rdc8 24.Kh1 Nge5 25.Nb2 Nf6 26.Bg3 Qa7 27.Nb3 Rd7 28.Bf2 Rdd8
29.Qd4 Nfd7 30.Na4 Rb8 31.Bg3 Nc6 32.Qe3 b5 33.cxb5 axb5 34.Qxa7 Nxa7 35.
Nc3 Ne5 36.Bf2 Rd7 37.Bxa7 Rxa7 38.Nxb5 Ra4 39.N3d4 g5 40.Rc7 Bb7 41.Nc2 
Raa8 42.Nbd4 Bg7 43.Bb5 d5 44.exd5 Bxd5 45.Re3 Rd8 46.Re1 Rd6 47.a4 h5 48.
Ne3 Ba2 49.Nc6 Nxc6 50.Bxc6 Rad8 51.Bb5 Bb3 52.a5 Rb8 53.Rc5 f5 54.a6 Bd4 
55.Rc6 Rxc6 56.Bxc6 Rxb4 57.Bb7 h4 58.Nf1 Ra4 59.g3 hxg3 60.Rb1 f4 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.01"]
[Round "7"]
[White "Kagan, Shimon"]
[Black "Smejkal, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2445"]
[BlackElo "2550"]
[ECO "B56"]
[EventDate "1979.09.23"]
[PlyCount "96"]

1.e4 c5 2.Nf3 d6 3.d4 Nf6 4.Nc3 cxd4 5.Nxd4 Nc6 6.g3 Bg4 7.f3 Bd7 8.Be3 g6
9.Qd2 Bg7 10.g4 Nxd4 11.Bxd4 Bc6 12.O-O-O Qa5 13.Kb1 O-O-O 14.Nb5 Qxd2 15.
Nxa7+ Kc7 16.Rxd2 e5 17.Bc3 Kb6 18.Nxc6 bxc6 19.g5 Nh5 20.Bc4 Nf4 21.Bb4 
d5 22.exd5 cxd5 23.Rhd1 Kc6 24.a4 Rb8 25.Bb5+ Rxb5 26.axb5+ Kxb5 27.c3 h6 
28.Be7 Re8 29.Bf6 Bxf6 30.gxf6 Re6 31.Rxd5+ Nxd5 32.Rxd5+ Kc6 33.Ra5 Kb6 
34.b4 Rxf6 35.Kb2 Rxf3 36.Rxe5 Rf2+ 37.Kb3 Rxh2 38.Re7 Rf2 39.c4 g5 40.c5+
Kc6 41.Ra7 g4 42.Ra6+ Kd5 43.Rd6+ Ke5 44.Rd1 g3 45.c6 g2 46.c7 Rf3+ 47.Kc2
Rf2+ 48.Kb3 Rf3+ 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.01"]
[Round "7"]
[White "Torre, Eugenio"]
[Black "Huebner, Robert"]
[Result "0-1"]
[WhiteElo "2520"]
[BlackElo "2595"]
[ECO "B81"]
[EventDate "1979.09.23"]
[PlyCount "64"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g4 h6 7.h4 Be7 8.Rh3 d5 
9.Bb5+ Kf8 10.e5 Nfd7 11.Bf4 Qb6 12.Nb3 Nc6 13.Qe2 a6 14.Bxc6 bxc6 15.
O-O-O a5 16.Kb1 a4 17.Nc1 Rb8 18.Nd3 Ba6 19.Bc1 c5 20.Qe1 d4 21.Nf4 Qc6 
22.Nce2 Qe4 23.Qa5 Qc6 24.Re1 Rb5 25.Qd2 Nxe5 26.Ng1 Nc4 27.Qd1 e5 28.Nh5 
g6 29.Ng3 Nxb2 30.Bxb2 a3 31.Ne4 Rxb2+ 32.Ka1 c4 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.02"]
[Round "8"]
[White "Balashov, Yury"]
[Black "Petrosian, Tigran"]
[Result "1/2-1/2"]
[WhiteElo "2600"]
[BlackElo "2610"]
[ECO "C16"]
[EventDate "1979.09.23"]
[PlyCount "24"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Ne7 5.a3 Bxc3+ 6.bxc3 b6 7.Qg4 Ng6 8.h4 h5 
9.Qg3 Ba6 10.Bxa6 Nxa6 11.Qd3 Nb8 12.Nf3 Nc6 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.02"]
[Round "8"]
[White "Ivkov, Borislav"]
[Black "Torre, Eugenio"]
[Result "1-0"]
[WhiteElo "2525"]
[BlackElo "2520"]
[ECO "E74"]
[EventDate "1979.09.23"]
[PlyCount "62"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5 7.d5 h6 8.Bf4 e6 9.
dxe6 Bxe6 10.Bxd6 Re8 11.Nf3 Nc6 12.O-O Qa5 13.Nd2 Red8 14.Bf4 Ne8 15.Nd5 
Bxb2 16.Nb3 Qa3 17.Bxh6 Bxd5 18.cxd5 Bxa1 19.Qxa1 Nd4 20.Nxd4 cxd4 21.Qxd4
Qe7 22.e5 Kh7 23.Be3 Ng7 24.Bg4 Re8 25.d6 Qd8 26.d7 Rf8 27.Qf4 Qe7 28.Rd1 
Rad8 29.Qg5 Qb4 30.Qh4+ Kg8 31.Bg5 Qa5 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.02"]
[Round "8"]
[White "Garcia Gonzales, Guillermo"]
[Black "Portisch, Lajos"]
[Result "0-1"]
[WhiteElo "2490"]
[BlackElo "2640"]
[ECO "A34"]
[EventDate "1979.09.23"]
[PlyCount "100"]

1.c4 c5 2.Nc3 Nf6 3.g3 d5 4.cxd5 Nxd5 5.Bg2 Nc7 6.Nf3 Nc6 7.O-O e5 8.a3 f6
9.d3 Be7 10.Rb1 Be6 11.Bd2 O-O 12.Qa4 a5 13.Rfc1 Qd7 14.Qd1 Rab8 15.Be1 
Bg4 16.Ne4 b6 17.Ned2 Rfd8 18.Qc2 Ne8 19.b3 Kh8 20.Qb2 Nc7 21.Nc4 Ne6 22.
Ne3 Bh5 23.Nc2 b5 24.Qa2 Bf8 25.Kf1 Re8 26.Ng1 Bf7 27.a4 b4 28.Ne3 Nc7 29.
Nf3 Nd5 30.Nxd5 Bxd5 31.Nd2 Bxg2+ 32.Kxg2 f5 33.Rd1 Re6 34.Nf1 Nd4 35.f3 
g5 36.e3 Nc6 37.Qe2 Rd8 38.g4 fxg4 39.fxg4 Rd6 40.Qf3 Bg7 41.Rbc1 e4 42.
Qxe4 Re8 43.Qf5 Qb7 44.e4 Nd4 45.Qxc5 Qd7 46.Bg3 Qxg4 47.Qxd6 Qf3+ 48.Kh3 
Ne2 49.Nd2 Nf4+ 50.Qxf4 Qh5+ 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.02"]
[Round "8"]
[White "Smejkal, Jan"]
[Black "Shamkovich, Leonid"]
[Result "0-1"]
[WhiteElo "2550"]
[BlackElo "2495"]
[ECO "A32"]
[EventDate "1979.09.23"]
[PlyCount "96"]

1.c4 c5 2.Nf3 Nf6 3.g3 Nc6 4.d4 cxd4 5.Nxd4 e6 6.Bg2 a6 7.O-O Qc7 8.Nc3 d6
9.b3 Bd7 10.Bb2 Be7 11.Rc1 Qa5 12.Qd2 O-O 13.Rfd1 Nxd4 14.Qxd4 Bc6 15.Bxc6
bxc6 16.e4 Qh5 17.Kg2 c5 18.Qd2 Ng4 19.h3 Ne5 20.Qe3 Nc6 21.Na4 Rad8 22.
Rd2 Qg6 23.Rcd1 e5 24.Qf3 Bg5 25.Re2 Rb8 26.Qf5 Qxf5 27.exf5 Nd4 28.Bxd4 
exd4 29.f4 Bd8 30.Kf3 g6 31.fxg6 hxg6 32.h4 Kg7 33.Rd3 Ba5 34.Re7 Rfe8 35.
Ra7 Ra8 36.Rd7 Re6 37.Nb2 Rae8 38.Nd1 R8e7 39.Rxe7 Rxe7 40.a3 f5 41.Nf2 
Be1 42.Nd1 Ba5 43.Kg2 Kh6 44.Kf3 Kh5 45.Nb2 Bc3 46.Nd1 Rb7 47.Ke2 Rxb3 48.
a4 Ra3 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.02"]
[Round "8"]
[White "Timman, Jan"]
[Black "Velimirovic, Dragoljub"]
[Result "1-0"]
[WhiteElo "2625"]
[BlackElo "2515"]
[ECO "D30"]
[EventDate "1979.09.23"]
[PlyCount "205"]

1.d4 d5 2.c4 e6 3.Nf3 c5 4.cxd5 exd5 5.g3 Nc6 6.Bg2 cxd4 7.Nxd4 Bc5 8.Nxc6
bxc6 9.Qc2 Qe7 10.O-O Bd7 11.Nc3 Nf6 12.Bg5 O-O 13.Bxf6 gxf6 14.Rac1 Bb6 
15.e3 h5 16.h4 Kh8 17.Ne2 Bg4 18.Nf4 Rac8 19.Bh3 Bxh3 20.Nxh3 Qe5 21.Nf4 
Rg8 22.Qe2 Rxg3+ 23.fxg3 Bxe3+ 24.Kg2 Bxf4 25.Qxe5 Bxe5 26.b3 Kg7 27.Rfd1 
Rc7 28.Rc2 Bd6 29.b4 Bxb4 30.Rxd5 Kg6 31.Rd4 a5 32.g4 c5 33.gxh5+ Kxh5 34.
Rd5+ Kh6 35.Rc4 a4 36.Kf3 a3 37.Rd6 Re7 38.Rxf6+ Kg7 39.Rf5 Rd7 40.Rg5+ 
Kf8 41.Rg2 Rd5 42.Ke4 Rh5 43.Kf3 Ke7 44.Kg4 Rh7 45.Rf2 Rg7+ 46.Kf5 Rh7 47.
Rf3 Kf8 48.Rh3 Rh5+ 49.Ke4 Ke7 50.Kf4 Kf6 51.Kg4 Kg6 52.Rf4 f5+ 53.Kf3 Kf7
54.Ke2 Ke6 55.Rc4 Kd5 56.Rf4 Ke5 57.Rc4 Kd5 58.Kd3 Ba5 59.Rh1 Bd8 60.Rf1 
Be7 61.Rcf4 Bxh4 62.Rxf5+ Rxf5 63.Rxf5+ Ke6 64.Rxc5 Bf6 65.Rc6+ Ke7 66.Ke4
Bb2 67.Kd5 Kf7 68.Re6 Kf8 69.Ke4 Kf7 70.Kf5 Kf8 71.Kg6 Bc3 72.Ra6 Bb2 73.
Ra7 Ke8 74.Kf5 Kf8 75.Ke6 Kg8 76.Rf7 Bc3 77.Rf3 Bb2 78.Ke7 Kh7 79.Rg3 Kh6 
80.Kd6 Kh5 81.Kc5 Kh4 82.Rg8 Be5 83.Kd5 Bb2 84.Kc4 Bf6 85.Rg6 Bg5 86.Kd5 
Bc1 87.Ke4 Bb2 88.Kf5 Kh5 89.Rd6 Kh4 90.Rd3 Bc1 91.Rc3 Bb2 92.Re3 Bc1 93.
Re1 Bd2 94.Rh1+ Kg3 95.Rd1 Bb4 96.Rd3+ Kf2 97.Ke4 Ke2 98.Kd4 Bc5+ 99.Kc4 
Be7 100.Rh3 Bd6 101.Kb3 Bf8 102.Rh8 Bd6 103.Ra8 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.02"]
[Round "8"]
[White "Vaganian, Rafael"]
[Black "Bronstein, Luis Marcos"]
[Result "1-0"]
[WhiteElo "2570"]
[BlackElo "2420"]
[ECO "D38"]
[EventDate "1979.09.23"]
[PlyCount "145"]

1.d4 e6 2.c4 Nf6 3.Nf3 d5 4.Bg5 Bb4+ 5.Nc3 Nbd7 6.cxd5 exd5 7.e3 c5 8.Bd3 
c4 9.Bf5 Qa5 10.Qc2 O-O 11.Nd2 Re8 12.O-O g6 13.Bxd7 Nxd7 14.a3 Bxc3 15.
bxc3 Nb6 16.f3 Qa4 17.Qb1 f6 18.Bh6 Qa5 19.Qb4 Qxb4 20.axb4 g5 21.Kf2 Bd7 
22.h4 gxh4 23.e4 Bc6 24.Rh1 dxe4 25.Rxh4 exf3 26.Rg4+ Kf7 27.Rg7+ Ke6 28.
d5+ Kxd5 29.Nxf3 Ba4 30.Ra2 Rad8 31.Rd2+ Ke4 32.Nd4 f5 33.Rxb7 Nd5 34.Bg5 
Nxc3 35.Bxd8 Nd1+ 36.Ke1 c3 37.Re2+ Ne3 38.Re7+ Kxd4 39.Rxe8 Bxe8 40.Bg5 
f4 41.Bxf4 Nd5 42.Be5+ Kc4 43.Bxc3 Bg6 44.Bd2 Nxb4 45.Re7 a5 46.Ra7 Kb5 
47.Kf2 Kb6 48.Rd7 Bc2 49.Ke2 Bg6 50.Be3+ Kb5 51.Rb7+ Kc4 52.Rc7+ Kb3 53.
Kd2 Nd5 54.Rb7+ Kc4 55.Bh6 a4 56.Bf8 Be4 57.g3 Bg6 58.Rd7 Nb6 59.Rb7 Kb5 
60.Ra7 Nd5 61.Ba3 Be4 62.Ra8 Nb6 63.Rb8 Kc6 64.Kc3 Bg6 65.Kd4 Bc2 66.Re8 
h5 67.Re6+ Kc7 68.Re1 Bf5 69.Rc1+ Kd7 70.Rc5 Bg4 71.Ra5 Kc6 72.Bc5 Nd7 73.
Rxa4 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.02"]
[Round "8"]
[White "Sax, Gyula"]
[Black "Kagan, Shimon"]
[Result "1-0"]
[WhiteElo "2590"]
[BlackElo "2445"]
[ECO "B74"]
[EventDate "1979.09.23"]
[PlyCount "55"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Nb3 d6 8.Be2 
O-O 9.O-O b6 10.f4 Bb7 11.Bf3 Nd7 12.Qd2 b5 13.Nxb5 Bxb2 14.Rad1 Nb6 15.
Qe2 Qc8 16.c3 Ba6 17.e5 Ba3 18.c4 Bc5 19.Nxc5 dxc5 20.Bxc5 Nxe5 21.Qxe5 
Nxc4 22.Qxe7 Re8 23.Nxa7 Qf5 24.Qc7 Nb2 25.Bxa8 Nxd1 26.Rxd1 Rxa8 27.Rd8+ 
Rxd8 28.Qxd8+ 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.02"]
[Round "8"]
[White "Sunye Neto, Jaime"]
[Black "Hebert, Jean"]
[Result "1/2-1/2"]
[WhiteElo "2375"]
[BlackElo "2365"]
[ECO "A26"]
[EventDate "1979.09.23"]
[PlyCount "107"]

1.c4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.Nc3 d6 6.O-O Nc6 7.Rb1 a5 8.a3 e5 
9.d3 Nd4 10.b4 axb4 11.axb4 Bd7 12.Nxd4 exd4 13.Nb5 Bxb5 14.cxb5 Rb8 15.
Bb2 Qd7 16.Qc2 Ne8 17.Qc4 d5 18.Qc5 Nd6 19.b6 c6 20.Bxd4 Bxd4 21.Qxd4 Nb5 
22.Qc5 d4 23.Ra1 Rfe8 24.Bf3 f6 25.Ra5 Re5 26.Qc4+ Kg7 27.Be4 Nc3 28.Rxe5 
Nxe2+ 29.Kg2 fxe5 30.Qc5 Re8 31.b5 cxb5 32.Ra1 Nc3 33.Bf3 Na4 34.Qd5 Qxd5 
35.Bxd5 Nxb6 36.Bxb7 Rb8 37.Bc6 b4 38.Kf3 Rc8 39.Bb5 Nd5 40.Bc4 Nc3 41.
Ra7+ Kh8 42.Bb3 Rf8+ 43.Kg2 e4 44.dxe4 Nxe4 45.Ra2 d3 46.Rb2 Nc5 47.Bd1 b3
48.Rb1 Rb8 49.Kf3 Re8 50.Bxb3 Kg7 51.Bc4 d2 52.Rd1 Rd8 53.Ke3 Re8+ 54.Kf3 
1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.03"]
[Round "9"]
[White "Huebner, Robert"]
[Black "Ivkov, Borislav"]
[Result "1/2-1/2"]
[WhiteElo "2595"]
[BlackElo "2525"]
[ECO "E05"]
[EventDate "1979.09.23"]
[PlyCount "55"]

1.Nf3 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.O-O O-O 6.d4 dxc4 7.Qc2 a6 8.a4 Nc6 
9.Qxc4 Qd5 10.Nbd2 Rd8 11.e3 Qxc4 12.Nxc4 Bd7 13.b3 Be8 14.Bb2 b5 15.Nce5 
bxa4 16.Nxc6 Bxc6 17.bxa4 Rab8 18.Ba3 Bxa3 19.Rxa3 Rb4 20.a5 Rb2 21.Rc1 
Bb5 22.Ne5 c5 23.dxc5 Rdd2 24.c6 Rxf2 25.Bh3 Rfc2 26.Rc3 Rxc3 27.Rxc3 Rb1+
28.Kg2 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.03"]
[Round "9"]
[White "Portisch, Lajos"]
[Black "Sunye Neto, Jaime"]
[Result "0-1"]
[WhiteElo "2640"]
[BlackElo "2375"]
[ECO "A34"]
[EventDate "1979.09.23"]
[PlyCount "82"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 c5 4.g3 b6 5.e4 Bb7 6.d3 Be7 7.Bg2 O-O 8.O-O Nc6 
9.d4 cxd4 10.Nxd4 Qc7 11.b3 a6 12.Bb2 Rac8 13.Nc2 Qb8 14.Qe2 d6 15.Rfd1 
Rfe8 16.Rd2 Ba8 17.Rad1 Bf8 18.f4 h6 19.Ne3 Nb4 20.Nf1 e5 21.a3 Nc6 22.Nd5
Nxd5 23.cxd5 Na5 24.Qd3 b5 25.Kh1 b4 26.Rb1 bxa3 27.Bxa3 Qb6 28.Ne3 Nb7 
29.Nc4 Qb5 30.Bf1 Nc5 31.Qf3 Qb8 32.Bh3 exf4 33.Bxc8 Nxe4 34.Bh3 Nxd2 35.
Nxd2 Re5 36.Bg2 fxg3 37.Qd3 Rh5 38.h3 Qb5 39.Qxb5 axb5 40.Rc1 Bxd5 41.Rc8 
Rxh3+ 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.03"]
[Round "9"]
[White "Shamkovich, Leonid"]
[Black "Sax, Gyula"]
[Result "1/2-1/2"]
[WhiteElo "2495"]
[BlackElo "2590"]
[ECO "B80"]
[EventDate "1979.09.23"]
[PlyCount "81"]

1.e4 c5 2.Nc3 e6 3.Nge2 Nc6 4.d4 cxd4 5.Nxd4 Nf6 6.g3 d6 7.Bg2 Bd7 8.O-O 
Be7 9.b3 a6 10.Bb2 Rc8 11.Nxc6 Bxc6 12.a4 O-O 13.Re1 Qc7 14.Qe2 Rfe8 15.
Rad1 Qb8 16.Rd2 d5 17.exd5 exd5 18.Qd1 Bb4 19.Rxe8+ Rxe8 20.Re2 Rd8 21.Qd4
Qd6 22.Nd1 Bc5 23.Qh4 d4 24.Bxc6 Qxc6 25.Qf4 h6 26.Qf5 Rd5 27.Qd3 Ng4 28.
Qe4 Nf6 29.Qd3 Nd7 30.Qe4 Qd6 31.Kg2 Nf6 32.Qd3 h5 33.f3 h4 34.Nf2 hxg3 
35.hxg3 Rg5 36.g4 Qc6 37.Bc1 Rg6 38.Kf1 Nd5 39.Bd2 Rf6 40.Ne4 Ne3+ 41.Kf2 
1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.03"]
[Round "9"]
[White "Bronstein, Luis Marcos"]
[Black "Timman, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2420"]
[BlackElo "2625"]
[ECO "B51"]
[EventDate "1979.09.23"]
[PlyCount "155"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Nc6 4.O-O Bd7 5.Re1 Nf6 6.c3 a6 7.Ba4 c4 8.d4 cxd3
9.Bg5 e6 10.Qxd3 Ne5 11.Nxe5 Bxa4 12.Nc4 Bc6 13.Nbd2 b5 14.Ne3 Be7 15.Bxf6
Bxf6 16.Nd5 Be7 17.Nxe7 Qxe7 18.Rad1 O-O 19.Nb3 Rfd8 20.Qe3 Rac8 21.f3 Qc7
22.Rd3 Rd7 23.Nd4 Bb7 24.Red1 Qc5 25.a3 h6 26.h3 Qb6 27.Nf5 Qxe3+ 28.Nxe3 
Rcd8 29.e5 d5 30.Nc2 Rc7 31.Nd4 Bc6 32.f4 Bd7 33.g4 a5 34.f5 Rb8 35.Kf2 b4
36.axb4 axb4 37.Ke3 Bb5 38.Nxb5 Rxb5 39.Ra1 Rc4 40.Ra8+ Kh7 41.Ra7 exf5 
42.gxf5 bxc3 43.bxc3 Re4+ 44.Kf3 Rxe5 45.Kf4 Re4+ 46.Kf3 Rh4 47.Kg3 Rh5 
48.Rxf7 Kg8 49.Rd7 Rxf5 50.Kg4 Rg5+ 51.Kf4 Rc5 52.h4 Rh5 53.Kg4 Re5 54.Kf4
Re4+ 55.Kg3 Rcc4 56.h5 Rg4+ 57.Kf3 Rcf4+ 58.Ke3 Re4+ 59.Kf3 Ref4+ 60.Ke3 
Rg3+ 61.Kxf4 Rxd3 62.Kg4 Rd1 63.Kh4 Rh1+ 64.Kg4 Rg1+ 65.Kh4 Rg5 66.c4 dxc4
67.Rc7 Re5 68.Rxc4 Kf7 69.Kg4 Kf6 70.Rf4+ Ke6 71.Ra4 Rg5+ 72.Kh4 Re5 73.
Kg4 Rg5+ 74.Kh4 Rd5 75.Kg4 Ke5 76.Rb4 Rd4+ 77.Rxd4 Kxd4 78.Kf4 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.03"]
[Round "9"]
[White "Kagan, Shimon"]
[Black "Vaganian, Rafael"]
[Result "0-1"]
[WhiteElo "2445"]
[BlackElo "2570"]
[ECO "C00"]
[EventDate "1979.09.23"]
[PlyCount "63"]

1.e4 e6 2.d3 d5 3.Nd2 Nf6 4.Ngf3 Nc6 5.g3 Bc5 6.Bg2 dxe4 7.dxe4 e5 8.O-O 
O-O 9.c3 a5 10.a4 b6 11.Qe2 Ba6 12.Nc4 Ne8 13.b3 Nd6 14.Nh4 Qf6 15.Nf5 
Nxc4 16.bxc4 Ne7 17.Be3 Bxe3 18.Nxe3 Qc6 19.Rfe1 Qc5 20.Bf1 Rad8 21.Qa2 
Rd6 22.Red1 Rfd8 23.Qb3 Nc8 24.Rd5 Rxd5 25.cxd5 Bxf1 26.Rxf1 Nd6 27.Qc2 b5
28.axb5 Nxb5 29.Rc1 Ra8 30.Ng4 f6 31.Ne3 a4 32.Kg2 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.03"]
[Round "9"]
[White "Hebert, Jean"]
[Black "Harandi, Khosro"]
[Result "1/2-1/2"]
[WhiteElo "2365"]
[BlackElo "2410"]
[ECO "E18"]
[EventDate "1979.09.23"]
[PlyCount "37"]

1.Nf3 Nf6 2.c4 e6 3.d4 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Nxe4 
Bxe4 9.Ne1 Bxg2 10.Nxg2 d5 11.cxd5 exd5 12.Bf4 Nd7 13.Rc1 c5 14.dxc5 Nxc5 
15.Be5 Ne6 16.Nf4 Nxf4 17.Bxf4 Bc5 18.Qd2 Qe7 19.a3 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.03"]
[Round "9"]
[White "Velimirovic, Dragoljub"]
[Black "Garcia Gonzales, Guillermo"]
[Result "0-1"]
[WhiteElo "2515"]
[BlackElo "2490"]
[ECO "B14"]
[EventDate "1979.09.23"]
[PlyCount "114"]

1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 e6 6.Nf3 Bb4 7.cxd5 Nxd5 8.Qc2 
Nc6 9.Bd3 Be7 10.a3 Bf6 11.O-O h6 12.Rd1 O-O 13.Qe2 Nxd4 14.Nxd4 Bxd4 15.
Qe4 Nf6 16.Qh4 e5 17.Bxh6 Ng4 18.Bg5 Bxf2+ 19.Qxf2 Qxg5 20.Qg3 Be6 21.h3 
Qe3+ 22.Qxe3 Nxe3 23.Re1 Nc4 24.Bxc4 Bxc4 25.Rxe5 Rfd8 26.Re7 b5 27.Rd1 a6
28.Red7 Re8 29.Kf2 Kh7 30.R1d4 Re5 31.Rh4+ Kg8 32.Re4 Rf5+ 33.Ke3 Rf1 34.
h4 Rc8 35.g4 Rh1 36.g5 Rh3+ 37.Kd2 Be6 38.Rd6 Bf5 39.Re2 Rxh4 40.Rxa6 Rd8+
41.Ke3 Rd3+ 42.Kf2 Rh2+ 43.Kg1 Rh5 44.Rg2 g6 45.Rb6 Bh3 46.Ne4 Kg7 47.Nf6 
Rd1+ 48.Kh2 Rh8 49.Rf2 Re1 50.Kg3 Re5 51.Kf4 Rf5+ 52.Ke3 Rxg5 53.Rf4 Be6 
54.Ne4 Rh3+ 55.Kf2 Rd5 56.Kg2 Rb3 57.Rf2 Re3 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.03"]
[Round "9"]
[White "Torre, Eugenio"]
[Black "Smejkal, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2520"]
[BlackElo "2550"]
[ECO "C92"]
[EventDate "1979.09.23"]
[PlyCount "26"]

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 Bb7 10.d4 Re8 11.Ng5 Rf8 12.Nf3 Re8 13.Ng5 Rf8 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.06"]
[Round "10"]
[White "Balashov, Yury"]
[Black "Hebert, Jean"]
[Result "1/2-1/2"]
[WhiteElo "2600"]
[BlackElo "2365"]
[ECO "B81"]
[EventDate "1979.09.23"]
[PlyCount "76"]

1.e4 c5 2.Nf3 d6 3.d4 Nf6 4.Nc3 cxd4 5.Nxd4 e6 6.g4 a6 7.g5 Nfd7 8.Bg2 Nc6
9.h4 Be7 10.a4 Qb6 11.Nb3 h5 12.Be3 Qc7 13.f4 g6 14.Qe2 Na5 15.Nxa5 Qxa5 
16.O-O O-O 17.Rad1 Re8 18.Qd2 Qc7 19.Bd4 Rb8 20.Kh1 b5 21.axb5 axb5 22.Ra1
b4 23.Ne2 Nc5 24.b3 Bb7 25.Ng3 e5 26.Bb2 Bc6 27.Qf2 Bf8 28.f5 Bb5 29.Rfe1 
Qb7 30.Qf3 Ra8 31.Bf1 Bxf1 32.Rxf1 Rxa1 33.Bxa1 Ra8 34.Bb2 Bg7 35.Bc1 Ra2 
36.Rf2 Ra1 37.Rf1 Ra2 38.Rf2 Ra1 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.06"]
[Round "10"]
[White "Sax, Gyula"]
[Black "Torre, Eugenio"]
[Result "1-0"]
[WhiteElo "2590"]
[BlackElo "2520"]
[ECO "B09"]
[EventDate "1979.09.23"]
[PlyCount "61"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.Bd3 Nc6 7.O-O e5 8.dxe5 
dxe5 9.f5 Nb4 10.Bg5 Qd6 11.Kh1 Nxd3 12.Qxd3 Qxd3 13.cxd3 c6 14.Rad1 Nd7 
15.Be3 gxf5 16.exf5 Nb6 17.Nd2 Rd8 18.Nde4 f6 19.g4 Nd5 20.Bc1 b6 21.g5 
Bb7 22.h4 c5 23.Kh2 Nxc3 24.bxc3 c4 25.gxf6 Bxe4 26.Rg1 Bxf5 27.Rxg7+ Kh8 
28.Re7 Re8 29.dxc4 Rxe7 30.fxe7 Re8 31.Rf1 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.06"]
[Round "10"]
[White "Harandi, Khosro"]
[Black "Portisch, Lajos"]
[Result "0-1"]
[WhiteElo "2410"]
[BlackElo "2640"]
[ECO "B97"]
[EventDate "1979.09.23"]
[PlyCount "58"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 8.Qd2 
Qxb2 9.Rb1 Qa3 10.f5 Nc6 11.fxe6 fxe6 12.Nxc6 bxc6 13.e5 dxe5 14.Bxf6 gxf6
15.Ne4 Be7 16.Be2 h5 17.Rb3 Qa4 18.c4 f5 19.O-O fxe4 20.Kh1 Ra7 21.Qc2 Qa5
22.Qxe4 Qc5 23.Bxh5+ Kd8 24.Bg4 Rf8 25.Rd1+ Kc7 26.h3 Rb7 27.Rxb7+ Kxb7 
28.Rb1+ Ka8 29.Qc2 Bd6 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.06"]
[Round "10"]
[White "Vaganian, Rafael"]
[Black "Shamkovich, Leonid"]
[Result "1/2-1/2"]
[WhiteElo "2570"]
[BlackElo "2495"]
[ECO "D98"]
[EventDate "1979.09.23"]
[PlyCount "81"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Nc6 8.Be2 
Bg4 9.d5 Na5 10.Qa4 Bxf3 11.Bxf3 c6 12.O-O cxd5 13.exd5 Rc8 14.Re1 b6 15.
Qb5 Nc4 16.a4 Ne8 17.Qb3 Ned6 18.Nb5 Qd7 19.Be2 Na5 20.Qd1 Nf5 21.g4 Nd6 
22.Ra2 a6 23.Nxd6 exd6 24.h3 Qb7 25.Qd3 Rfe8 26.Rd1 Nb3 27.Be3 Nd4 28.Bxd4
Bxd4 29.b3 Bf6 30.Qxa6 Qxa6 31.Bxa6 Rc3 32.Bb5 Rec8 33.b4 Rb3 34.a5 bxa5 
35.Ba6 Ra8 36.b5 Bc3 37.Rc1 Bd4 38.Kg2 Bc5 39.Rcc2 Bb6 40.Rc4 Kf8 41.Rc6 
1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.06"]
[Round "10"]
[White "Timman, Jan"]
[Black "Kagan, Shimon"]
[Result "1-0"]
[WhiteElo "2625"]
[BlackElo "2445"]
[ECO "B06"]
[EventDate "1979.09.23"]
[PlyCount "51"]

1.d4 d6 2.e4 g6 3.f4 Bg7 4.Nc3 a6 5.Nf3 b5 6.Bd3 Bb7 7.O-O Nd7 8.e5 c5 9.
Be4 Bxe4 10.Nxe4 cxd4 11.e6 fxe6 12.Neg5 Nf8 13.Nxd4 Bxd4+ 14.Qxd4 Nf6 15.
Re1 Qc8 16.a4 b4 17.Qxb4 Qxc2 18.Be3 Qc8 19.Rac1 Qb8 20.Qc4 Qb7 21.Bd4 d5 
22.Qc3 N8d7 23.Nxe6 Ne4 24.Rxe4 dxe4 25.Nc7+ Kf7 26.Qc4+ 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.06"]
[Round "10"]
[White "Garcia Gonzales, Guillermo"]
[Black "Bronstein, Luis Marcos"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2420"]
[ECO "A25"]
[EventDate "1979.09.23"]
[PlyCount "115"]

1.c4 e5 2.Nc3 Nc6 3.e3 Nf6 4.d4 Bb4 5.d5 Bxc3+ 6.bxc3 Ne7 7.e4 d6 8.f3 O-O
9.Ne2 Nd7 10.g4 Nc5 11.Ng3 c6 12.Bg5 cxd5 13.cxd5 f6 14.Bd2 Bd7 15.c4 Ba4 
16.Qc1 b5 17.cxb5 Qd7 18.Rb1 Rab8 19.b6 Rfc8 20.Qa3 axb6 21.Rb2 b5 22.Be2 
Qa7 23.Qe3 Ng6 24.O-O Nf4 25.Bb4 g6 26.Rfb1 Qg7 27.Bf1 Rc7 28.Rd2 Rbc8 29.
Ba5 Ra7 30.Bb4 Rac7 31.Ba5 Ra7 32.Bb4 Qd7 33.Re1 Rac7 34.Ne2 Nxe2+ 35.
Rdxe2 Na6 36.Ba5 Rc5 37.Rb2 Rc2 38.Rxc2 Rxc2 39.Re2 Rxe2 40.Bxe2 Nc5 41.
Bb6 Qc8 42.Qc3 Kf7 43.Kf1 h5 44.gxh5 gxh5 45.Qc1 Kg7 46.Kg1 b4 47.f4 exf4 
48.Qxf4 Qh3 49.Bxc5 dxc5 50.e5 fxe5 51.Qxe5+ Kg6 52.Qd6+ Kg5 53.Qxc5 Qc3 
54.Qe7+ Kf4 55.Qh4+ Ke3 56.Qf2+ Ke4 57.Qg2+ Kd4 58.Qg7+ 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.06"]
[Round "10"]
[White "Smejkal, Jan"]
[Black "Huebner, Robert"]
[Result "1-0"]
[WhiteElo "2550"]
[BlackElo "2595"]
[ECO "D27"]
[EventDate "1979.09.23"]
[PlyCount "77"]

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 a6 6.a4 c5 7.O-O Nc6 8.Nc3 Be7 
9.dxc5 Qxd1 10.Rxd1 Bxc5 11.Bd2 b6 12.Ng5 Na5 13.Ba2 Bb7 14.Rac1 Rc8 15.
Ne2 Nc6 16.a5 h6 17.Nf3 Ne4 18.Be1 bxa5 19.Bb1 Nb4 20.Ne5 Nd6 21.Nd3 Nxd3 
22.Bxd3 a4 23.Bc2 Bc6 24.Bxa4 Kd7 25.Bxc6+ Rxc6 26.Ra1 Rb8 27.Bc3 f6 28.
Ra4 e5 29.Rg4 g5 30.Ra4 Ke6 31.Rda1 Rbb6 32.Kf1 f5 33.b4 Bxe3 34.fxe3 Kd5 
35.Rd1+ Ke6 36.Rda1 Nc4 37.Kf2 Rd6 38.R4a2 Rd3 39.Rxa6 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.06"]
[Round "10"]
[White "Sunye Neto, Jaime"]
[Black "Velimirovic, Dragoljub"]
[Result "1-0"]
[WhiteElo "2375"]
[BlackElo "2515"]
[ECO "A34"]
[EventDate "1979.09.23"]
[PlyCount "145"]

1.c4 e6 2.Nf3 c5 3.Nc3 Nf6 4.e3 Be7 5.d4 O-O 6.Be2 cxd4 7.Nxd4 e5 8.Nc2 
Nc6 9.O-O d6 10.b3 Bf5 11.Bb2 Rc8 12.Qd2 Qb6 13.Rfd1 Rfd8 14.Rac1 d5 15.
cxd5 Nb4 16.Nxb4 Bxb4 17.Bc4 Ne4 18.Qe2 Nxc3 19.Bxc3 Bxc3 20.Rxc3 e4 21.
Qd2 Qg6 22.Bf1 Rxc3 23.Qxc3 h5 24.Qe5 Rd6 25.Rc1 h4 26.Kh1 h3 27.gxh3 Rf6 
28.Bg2 Qh6 29.d6 Bd7 30.Rc7 Rf5 31.Qd4 Qe6 32.Rxb7 Rxf2 33.Rb8+ Kh7 34.
Qxe4+ Qxe4 35.Bxe4+ f5 36.Bd5 Rd2 37.Rb7 Bc8 38.Rb5 Kg6 39.Kg1 Kf6 40.Ra5 
a6 41.d7 Bxd7 42.Rxa6+ Ke5 43.Bf3 Rd3 44.Kf2 Rd2+ 45.Kg3 g5 46.Ra5+ Kd6 
47.h4 g4 48.Rd5+ Rxd5 49.Bxd5 Kxd5 50.Kf4 Ke6 51.Kg5 Bc6 52.a4 Be4 53.a5 
Bd3 54.h5 Kf7 55.b4 Kg7 56.b5 Bxb5 57.Kxf5 Kh6 58.Kxg4 Bd3 59.Kh4 Kh7 60.
Kg5 Kg7 61.Kf4 Kh6 62.e4 Kxh5 63.e5 Kg6 64.Ke3 Ba6 65.Kd4 Kf7 66.h4 Be2 
67.Ke3 Bb5 68.h5 Kg7 69.Kf4 Be2 70.Kg5 Kf7 71.h6 Bd3 72.Kf4 Bc4 73.Ke4 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.07"]
[Round "11"]
[White "Portisch, Lajos"]
[Black "Balashov, Yury"]
[Result "1-0"]
[WhiteElo "2640"]
[BlackElo "2600"]
[ECO "E55"]
[EventDate "1979.09.23"]
[PlyCount "61"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 c5 6.Nf3 d5 7.O-O dxc4 8.Bxc4 
Nbd7 9.Qe2 a6 10.a4 Qc7 11.Na2 b5 12.Bd3 Ba5 13.axb5 axb5 14.Bxb5 Bb7 15.
Rd1 Rab8 16.dxc5 Bxf3 17.gxf3 Nxc5 18.b4 Nb3 19.Rb1 Qe5 20.bxa5 Rxb5 21.
Kh1 Qb8 22.Ba3 Rc8 23.Bd6 Qb7 24.a6 Qb6 25.Bc7 Qc6 26.a7 h6 27.Bb8 Nd7 28.
Rd6 Qb7 29.Rxd7 Qxd7 30.a8=Q Rbxb8 31.Qe4 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.07"]
[Round "11"]
[White "Ivkov, Borislav"]
[Black "Smejkal, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2525"]
[BlackElo "2550"]
[ECO "A08"]
[EventDate "1979.09.23"]
[PlyCount "82"]

1.e4 c5 2.Nf3 e6 3.d3 Nc6 4.g3 d5 5.Nbd2 Bd6 6.Bg2 Nge7 7.O-O O-O 8.Re1 
Bc7 9.c3 d4 10.Nb3 Bb6 11.cxd4 cxd4 12.e5 Ng6 13.h4 Bc7 14.Bg5 Qe8 15.Rc1 
h6 16.h5 Ngxe5 17.Nxe5 Bxe5 18.Bxh6 Bf6 19.Bd2 Qe7 20.Nc5 Rb8 21.b4 Nd8 
22.h6 e5 23.Ne4 Bf5 24.f4 Ne6 25.Nxf6+ Qxf6 26.g4 Bxd3 27.f5 e4 28.hxg7 
Nxg7 29.Bxe4 Bxe4 30.Rxe4 Rbe8 31.Qf3 Rxe4 32.Qxe4 Re8 33.Qxb7 d3 34.Qf3 
Qd4+ 35.Kf1 f6 36.Bc3 d2 37.Rd1 Qc4+ 38.Kg1 Re4 39.Rxd2 Rxg4+ 40.Rg2 Rxg2+
41.Kxg2 Qxa2+ 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.07"]
[Round "11"]
[White "Hebert, Jean"]
[Black "Petrosian, Tigran"]
[Result "1/2-1/2"]
[WhiteElo "2365"]
[BlackElo "2610"]
[ECO "B06"]
[EventDate "1979.09.23"]
[PlyCount "37"]

1.e4 g6 2.d4 Bg7 3.Nc3 c6 4.Bc4 d6 5.Nf3 e6 6.Bb3 Ne7 7.Bf4 h6 8.h3 d5 9.
Qd2 Nd7 10.O-O Nf6 11.Rfe1 Kf8 12.a4 a5 13.Be5 Ne8 14.Bxg7+ Kxg7 15.e5 b6 
16.Nd1 Ba6 17.Ne3 c5 18.c3 Rc8 19.Bc2 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.07"]
[Round "11"]
[White "Shamkovich, Leonid"]
[Black "Timman, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2495"]
[BlackElo "2625"]
[ECO "B47"]
[EventDate "1979.09.23"]
[PlyCount "85"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.g3 a6 7.Bg2 Nf6 8.O-O 
Be7 9.Re1 Nxd4 10.Qxd4 Bc5 11.Qd1 d6 12.h3 Nd7 13.Be3 O-O 14.Qd2 Ne5 15.
Bxc5 Qxc5 16.Rad1 Nc4 17.Na4 Qc7 18.Qc3 Bd7 19.b3 Bxa4 20.Bf1 Bb5 21.bxc4 
Rfc8 22.Qb4 Bxc4 23.Bxc4 Qxc4 24.Qxb7 Qc6 25.Qe7 Qxc2 26.Rxd6 Qxa2 27.Rd7 
Rf8 28.Re3 Rac8 29.Rf3 Qe2 30.Rf4 e5 31.Qxe5 Rc1+ 32.Kg2 Qf1+ 33.Kf3 Rc2 
34.Kg4 Rxf2 35.Rdxf7 Qd1+ 36.Rf3 h5+ 37.Kg5 Qd8+ 38.Re7 Rf7 39.Rxf2 Rxe7 
40.Qd5+ Qxd5+ 41.exd5 Re5+ 42.Kg6 Rxd5 43.Rc2 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.07"]
[Round "11"]
[White "Torre, Eugenio"]
[Black "Vaganian, Rafael"]
[Result "1/2-1/2"]
[WhiteElo "2520"]
[BlackElo "2570"]
[ECO "D58"]
[EventDate "1979.09.23"]
[PlyCount "68"]

1.Nf3 Nf6 2.c4 e6 3.Nc3 d5 4.d4 Be7 5.Bg5 h6 6.Bh4 O-O 7.e3 b6 8.Bd3 Bb7 
9.O-O Nbd7 10.Qe2 c5 11.Rfd1 Ne4 12.Bxe7 Qxe7 13.Rac1 a6 14.cxd5 exd5 15.
dxc5 bxc5 16.Bxe4 dxe4 17.Nd2 Bc6 18.Ndxe4 Bxe4 19.Nxe4 Qxe4 20.Rxd7 Qe6 
21.Rd2 Qxa2 22.Rxc5 Rfc8 23.Rxc8+ Rxc8 24.Qd1 Kh7 25.h3 Qc4 26.Kh2 Rb8 27.
Qf3 Qe6 28.Qf4 Rb6 29.Qd4 Qf6 30.Qd3+ g6 31.Qe2 h5 32.Rd4 Kg7 33.h4 Qe5+ 
34.g3 Qb5 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.07"]
[Round "11"]
[White "Bronstein, Luis Marcos"]
[Black "Sunye Neto, Jaime"]
[Result "1/2-1/2"]
[WhiteElo "2420"]
[BlackElo "2375"]
[ECO "E12"]
[EventDate "1979.09.23"]
[PlyCount "108"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 d5 5.cxd5 exd5 6.Nc3 Be7 7.Bg5 O-O 8.e3 Bb7
9.Bd3 Ne4 10.h4 Nd7 11.Qc2 f5 12.Qb3 Nxc3 13.bxc3 c5 14.Qb1 Bxg5 15.Nxg5 
Qf6 16.Nh3 Rae8 17.Kd2 g6 18.Nf4 Qd6 19.g3 Nf6 20.f3 Bc6 21.Re1 Ba4 22.Bb5
Bxb5 23.Qxb5 Rc8 24.a4 Rc7 25.a5 Rfc8 26.axb6 axb6 27.Rec1 Nh5 28.Nxh5 
gxh5 29.f4 Qe6 30.Qe2 Qe4 31.Qxh5 cxd4 32.exd4 Qg2+ 33.Qe2 Qxe2+ 34.Kxe2 
Rxc3 35.Rxc3 Rxc3 36.Ra8+ Kf7 37.Rd8 Ke6 38.Rh8 Rxg3 39.Rxh7 Rh3 40.h5 b5 
41.h6 b4 42.Rb7 Kf6 43.Rb6+ Kf7 44.Rd6 b3 45.Kd2 b2 46.Kc2 Rb3 47.Kb1 Rb5 
48.h7 Kg7 49.Rh6 Kh8 50.Rh5 Rb4 51.Rxf5 Rxd4 52.Rf7 Rd2 53.f5 Rf2 54.f6 d4
1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.07"]
[Round "11"]
[White "Huebner, Robert"]
[Black "Sax, Gyula"]
[Result "1/2-1/2"]
[WhiteElo "2595"]
[BlackElo "2590"]
[ECO "B33"]
[EventDate "1979.09.23"]
[PlyCount "40"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 
b5 9.Bxf6 gxf6 10.Nd5 f5 11.Bd3 Be6 12.Qh5 Rg8 13.f4 Rxg2 14.Ne3 Qa5+ 15.
Kf1 Rg7 16.exf5 Qb4 17.fxe6 Qxf4+ 18.Ke2 Nd4+ 19.Kd2 Nf3+ 20.Ke2 Nd4+ 
1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.07"]
[Round "11"]
[White "Kagan, Shimon"]
[Black "Garcia Gonzales, Guillermo"]
[Result "1/2-1/2"]
[WhiteElo "2445"]
[BlackElo "2490"]
[ECO "C03"]
[EventDate "1979.09.23"]
[PlyCount "166"]

1.e4 e6 2.d4 d5 3.Nd2 Ne7 4.Ngf3 Nd7 5.Be2 Ng6 6.O-O Be7 7.Re1 O-O 8.Bf1 
c6 9.c4 Nf6 10.Qc2 b6 11.b3 Bb7 12.e5 Nd7 13.Bb2 Re8 14.g3 Ndf8 15.h4 f5 
16.exf6 gxf6 17.Rac1 Bd6 18.h5 Nh8 19.Nh4 Re7 20.c5 Bc7 21.b4 b5 22.a4 a6 
23.Ra1 Rg7 24.Ndf3 Nf7 25.axb5 axb5 26.Rxa8 Qxa8 27.Bc1 Kh8 28.Bg2 Qb8 29.
Be3 Bc8 30.Ra1 Rg8 31.Qa2 e5 32.Qa8 Qxa8 33.Rxa8 Bg4 34.Ra6 Nd8 35.h6 Nfe6
36.Kh2 e4 37.Ng1 f5 38.Nh3 Bxh3 39.Kxh3 f4 40.gxf4 Nxf4+ 41.Bxf4 Bxf4 42.
Nf5 Bc7 43.Ra8 Ne6 44.Rxg8+ Kxg8 45.Ne7+ Kf7 46.Nxc6 Bf4 47.Bf1 Bxh6 48.
Bxb5 Bg7 49.Ne5+ Ke7 50.Nc6+ Kf7 51.Ba4 Nxd4 52.Nb8 Ne6 53.Bb3 Nc7 54.b5 
Nxb5 55.Bxd5+ Ke7 56.Bxe4 Nd4 57.Kg4 Ne6 58.c6 Be5 59.Na6 h6 60.Kf5 Bd6 
61.Kg6 Bf4 62.Bf5 Kd6 63.Bxe6 Kxe6 64.Nc5+ Kd5 65.Nd3 Bd6 66.Nb4+ Ke6 67.
Na6 Bf4 68.Nc5+ Kd5 69.Nd3 Bd6 70.Nb4+ Ke6 71.Na6 Bf4 72.f3 Kd6 73.c7 Kd7 
74.Nc5+ Kc8 75.Ne6 Bd2 76.Kh5 Kd7 77.Kg4 Kc8 78.f4 h5+ 79.Kf3 Bb4 80.f5 
Be7 81.Ke4 h4 82.Kf3 Kd7 83.Kg4 Kc8 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.07"]
[Round "11"]
[White "Velimirovic, Dragoljub"]
[Black "Harandi, Khosro"]
[Result "1-0"]
[WhiteElo "2515"]
[BlackElo "2410"]
[ECO "C44"]
[EventDate "1979.09.23"]
[PlyCount "80"]

1.e4 e5 2.Nf3 Nc6 3.c3 Nf6 4.d4 d6 5.h3 g6 6.Be3 Bg7 7.dxe5 dxe5 8.Qxd8+ 
Nxd8 9.Nbd2 O-O 10.Nxe5 Re8 11.f4 Nh5 12.O-O-O Bh6 13.Nef3 Bxf4 14.Bxf4 
Nxf4 15.e5 Bf5 16.g4 Bd3 17.Rh2 Bxf1 18.Rxf1 Nc6 19.Kc2 h6 20.g5 h5 21.Ne4
Kg7 22.Nf6 Red8 23.h4 Ne6 24.Rhf2 a5 25.Re2 a4 26.Ne1 Nc5 27.Ne4 Nxe4 28.
Rxe4 Re8 29.Nd3 Ra5 30.Rfe1 Nd8 31.Rb4 b5 32.Nc5 Nc6 33.Rbe4 b4 34.Nd3 
bxc3 35.Kxc3 Re6 36.Kc4 Nd8 37.Kb4 Rd5 38.R1e3 Rb6+ 39.Kxa4 Ne6 40.b4 c5 
1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.08"]
[Round "12"]
[White "Balashov, Yury"]
[Black "Velimirovic, Dragoljub"]
[Result "1/2-1/2"]
[WhiteElo "2600"]
[BlackElo "2515"]
[ECO "A43"]
[EventDate "1979.09.23"]
[PlyCount "142"]

1.d4 c5 2.d5 d6 3.Nc3 g6 4.e4 Bg7 5.Be2 Na6 6.Nf3 Nf6 7.Nd2 Nc7 8.a4 a6 9.
O-O Bd7 10.Nc4 b5 11.Nb6 b4 12.e5 dxe5 13.d6 Ne6 14.Ncd5 Nxd5 15.Qxd5 Ra7 
16.a5 O-O 17.c3 bxc3 18.bxc3 exd6 19.Rd1 Bb5 20.Bg4 Qe7 21.Bxe6 fxe6 22.
Qxd6 e4 23.Ra3 Bd4 24.Rxd4 cxd4 25.Qxe7 Rxe7 26.cxd4 Rc7 27.Be3 Rc2 28.h3 
Rf7 29.d5 exd5 30.Nxd5 Kf8 31.Nb4 Rc4 32.Nd5 Bc6 33.Nb6 Rc2 34.Ra1 Rf5 35.
Ra3 Bb5 36.Na4 Rd5 37.Nc3 Rd3 38.Nxb5 axb5 39.Ra1 Rc8 40.a6 Ra8 41.a7 Rd7 
42.Kf1 Rb7 43.Ke2 b4 44.Bd4 Kf7 45.Ke3 b3 46.Kxe4 Rb4 47.Kd3 Rd8 48.a8=Q 
Rbxd4+ 49.Kc3 Rd3+ 50.Kb2 Rxa8 51.Rxa8 Rd2+ 52.Kxb3 Rxf2 53.Ra7+ Kg8 54.g4
Rf3+ 55.Kc4 Rxh3 56.Kd5 Rg3 57.Ra4 Kg7 58.Ke5 Rf3 59.Ke4 Rf1 60.Ra6 g5 61.
Ke5 Rf7 62.Rb6 Ra7 63.Ke4 Ra4+ 64.Kf3 Rf4+ 65.Kg3 Rf6 66.Rb7+ Kg6 67.Ra7 
Rb6 68.Kf3 h6 69.Kg3 Kf6 70.Ra5 Ke6 71.Kg2 Rd6 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.08"]
[Round "12"]
[White "Sax, Gyula"]
[Black "Ivkov, Borislav"]
[Result "1/2-1/2"]
[WhiteElo "2590"]
[BlackElo "2525"]
[ECO "C85"]
[EventDate "1979.09.23"]
[PlyCount "56"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Bxc6 dxc6 7.Nc3 Bg4 8.h3 
Bh5 9.g4 Bg6 10.Qe2 Nd7 11.d4 exd4 12.Nxd4 h5 13.Nf5 hxg4 14.hxg4 Bd6 15.
f4 Bxf5 16.exf5+ Kf8 17.g5 Nc5 18.b4 Qd7 19.bxc5 Bxc5+ 20.Be3 Qxf5 21.Ne4 
Bxe3+ 22.Qxe3 Qh7 23.Kf2 Qh2+ 24.Ke1 Re8 25.Qa3+ Kg8 26.Qe3 Kf8 27.Qa3+ 
Kg8 28.Qe3 Kf8 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.08"]
[Round "12"]
[White "Petrosian, Tigran"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[WhiteElo "2610"]
[BlackElo "2640"]
[ECO "D27"]
[EventDate "1979.09.23"]
[PlyCount "43"]

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.a4 Nc6 8.Qe2 cxd4
9.Rd1 Be7 10.exd4 O-O 11.Nc3 Nd5 12.Qe4 Nf6 13.Qe2 Nd5 14.Bd3 Ncb4 15.Bb1 
b6 16.Qe4 g6 17.Bh6 Re8 18.Qe5 Bf8 19.Bxf8 Rxf8 20.Ne4 Nc6 21.Qg3 Nce7 22.
Nd6 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.08"]
[Round "12"]
[White "Garcia Gonzales, Guillermo"]
[Black "Shamkovich, Leonid"]
[Result "0-1"]
[WhiteElo "2490"]
[BlackElo "2495"]
[ECO "A18"]
[EventDate "1979.09.23"]
[PlyCount "56"]

1.c4 Nf6 2.Nc3 e6 3.e4 d5 4.e5 Ne4 5.Nxe4 dxe4 6.Qg4 Bd7 7.Qxe4 Bc6 8.Qe2 
Bc5 9.d3 Na6 10.Be3 Bb4+ 11.Bd2 Qd4 12.Bxb4 Nxb4 13.h4 O-O-O 14.Rh3 Ba4 
15.Rc1 Nxa2 16.Ra1 Bb3 17.Nf3 Qb6 18.Nd2 Rd4 19.Re3 Rhd8 20.c5 Qb4 21.Re4 
Bd5 22.Rxd4 Qxd4 23.Nf3 Qxc5 24.d4 Qb6 25.Qb5 Qxb5 26.Bxb5 a6 27.Be2 Nb4 
28.Kd2 Nc6 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.08"]
[Round "12"]
[White "Timman, Jan"]
[Black "Torre, Eugenio"]
[Result "1-0"]
[WhiteElo "2625"]
[BlackElo "2520"]
[ECO "B67"]
[EventDate "1979.09.23"]
[PlyCount "110"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
Bd7 9.f4 b5 10.Bxf6 gxf6 11.Kb1 Qb6 12.Nce2 O-O-O 13.g3 h5 14.Bg2 Kb8 15.
Rhf1 Ne7 16.Nb3 Bc6 17.Ned4 Ba8 18.Qe2 d5 19.e5 f5 20.Nf3 Bh6 21.Nbd4 Ng6 
22.h4 Rc8 23.Qe3 Qa7 24.Rd3 Qd7 25.Rfd1 Rc7 26.Bf1 Bf8 27.Ng5 Bc5 28.Be2 
Bb7 29.Qd2 Bb6 30.Rc1 Qe7 31.Qd1 Rc4 32.Rd2 Ra4 33.c3 Rc8 34.b3 Ra5 35.b4 
Ra4 36.Qb3 Bc6 37.a3 Be8 38.Bxh5 Nf8 39.Qb2 a5 40.Be2 axb4 41.cxb4 Rxc1+ 
42.Qxc1 Qa7 43.Qc6 Bd7 44.Qd6+ Kb7 45.Bxb5 Rxa3 46.Bc6+ Bxc6 47.Qxc6+ Kb8 
48.Qe8+ Kb7 49.Qxf7+ Bc7 50.Qxc7+ Kxc7 51.Nb5+ Kd7 52.Nxa7 Rxa7 53.Ra2 Rb7
54.Rc2 Ke7 55.h5 Rxb4+ 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.08"]
[Round "12"]
[White "Vaganian, Rafael"]
[Black "Huebner, Robert"]
[Result "1/2-1/2"]
[WhiteElo "2570"]
[BlackElo "2595"]
[ECO "D99"]
[EventDate "1979.09.23"]
[PlyCount "66"]

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 e6 11.Be2 Nc6 12.e5 Ne7 13.h3 Bxf3 14.Bxf3 Nf5 15.
O-O c6 16.Ne4 Nd5 17.Bg5 Qb6 18.Qxb6 axb6 19.g4 Nxd4 20.Rxd4 Bxe5 21.Rxd5 
exd5 22.Nf6+ Kg7 23.Nd7 f6 24.Nxf8 fxg5 25.Nd7 Bxb2 26.Re1 Rxa2 27.Re2 
Ra1+ 28.Kg2 Bd4 29.Re7+ Kg8 30.Nb8 Ra2 31.Rxb7 Rxf2+ 32.Kg3 Rc2 33.Nxc6 
Bf2+ 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.08"]
[Round "12"]
[White "Harandi, Khosro"]
[Black "Bronstein, Luis Marcos"]
[Result "0-1"]
[WhiteElo "2410"]
[BlackElo "2420"]
[ECO "C64"]
[EventDate "1979.09.23"]
[PlyCount "132"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.O-O Nd4 5.Nxd4 Bxd4 6.c3 Bb6 7.d4 c6 8.Ba4 
d6 9.d5 Ne7 10.Nd2 O-O 11.Nc4 Bc7 12.Ne3 a5 13.c4 Bb6 14.Kh1 cxd5 15.Nxd5 
Nxd5 16.Qxd5 Be6 17.Qd3 Rc8 18.Bb5 Qc7 19.Qg3 f5 20.exf5 Rxf5 21.Be3 Bxe3 
22.Qxe3 Qc5 23.Qxc5 Rxc5 24.Rac1 Kf8 25.Kg1 Ke7 26.b3 Rf8 27.Rfe1 g5 28.a3
Rf4 29.Rcd1 b6 30.Re3 Rf8 31.h3 h5 32.Rc1 g4 33.hxg4 hxg4 34.Rec3 Rfc8 35.
Ba6 Ra8 36.Bb5 Rac8 37.Ba6 Ra8 38.Bb5 Rb8 39.Kh2 Rh8+ 40.Kg3 Rh6 41.b4 Rc7
42.Re3 Rh5 43.Ree1 Rc8 44.Ba6 Ra8 45.Bb7 Ra7 46.Bd5 axb4 47.axb4 Ra4 48.
Rb1 Rf5 49.Rb2 Rf4 50.Rh1 Ra3+ 51.f3 Bxd5 52.cxd5 gxf3 53.Rh7+ Kf6 54.gxf3
Raxf3+ 55.Kg2 e4 56.Rd2 Rg4+ 57.Kh2 e3 58.Rd3 Rxb4 59.Kg2 Rbf4 60.Rh6+ Kg5
61.Re6 Rf2+ 62.Kg1 Rg4+ 63.Kh1 Rf8 64.Rexe3 Rh8+ 65.Rh3 Rxh3+ 66.Rxh3 Rh4 
0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.08"]
[Round "12"]
[White "Sunye Neto, Jaime"]
[Black "Kagan, Shimon"]
[Result "1/2-1/2"]
[WhiteElo "2375"]
[BlackElo "2445"]
[ECO "A24"]
[EventDate "1979.09.23"]
[PlyCount "74"]

1.c4 e5 2.Nc3 Nf6 3.g3 g6 4.Bg2 Bg7 5.e4 O-O 6.Nge2 d6 7.O-O Be6 8.d3 Qd7 
9.f4 c6 10.b3 Bg4 11.Ba3 Re8 12.Qd2 Na6 13.f5 gxf5 14.h3 Bxe2 15.Nxe2 fxe4
16.dxe4 Rad8 17.Rad1 Qc7 18.g4 Nc5 19.Ng3 Ne6 20.g5 Nd7 21.Bxd6 Qb6+ 22.
Kh1 Ndf8 23.Nf5 Ng6 24.c5 Qa6 25.Qf2 Nef4 26.Nxg7 Kxg7 27.Bxe5+ Nxe5 28.
Rxd8 Rxd8 29.Qxf4 Re8 30.Rd1 Qxa2 31.Qf6+ Kg8 32.Rd8 Qa1+ 33.Kh2 Rxd8 34.
Qxd8+ Kg7 35.Qf6+ Kf8 36.Qd8+ Kg7 37.Qf6+ Kf8 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.10"]
[Round "13"]
[White "Bronstein, Luis Marcos"]
[Black "Balashov, Yury"]
[Result "1/2-1/2"]
[WhiteElo "2420"]
[BlackElo "2600"]
[ECO "E90"]
[EventDate "1979.09.23"]
[PlyCount "140"]

1.d4 Nf6 2.c4 c5 3.d5 d6 4.Nc3 g6 5.e4 Bg7 6.Nf3 O-O 7.Bd3 a6 8.a4 e6 9.h3
Nbd7 10.Be3 b6 11.Qd2 Rb8 12.dxe6 fxe6 13.Be2 Ne8 14.O-O Bb7 15.Ng5 Qe7 
16.Bg4 Rf6 17.Rad1 Ne5 18.Be2 Nc6 19.f4 Nd4 20.Nf3 Nxe2+ 21.Qxe2 Rf8 22.
Qd3 Rd8 23.Ng5 Nf6 24.Qc2 h6 25.Nf3 Nh5 26.Ne2 e5 27.f5 gxf5 28.exf5 e4 
29.Nh2 d5 30.cxd5 Rxd5 31.Qb3 Qf7 32.Qxb6 Rxd1 33.Rxd1 Bd5 34.Ng4 Bc4 35.
Nc3 Qxf5 36.Nxh6+ Bxh6 37.Qxh6 Bd3 38.Qd6 Nf4 39.Bxf4 Qxf4 40.Qg6+ Kh8 41.
Qh5+ Kg7 42.Nd5 Qg3 43.Qg4+ Qxg4 44.hxg4 c4 45.Ne3 Kf6 46.Rd2 Ke5 47.Rf2 
Rb8 48.g5 Kd4 49.Nf5+ Kc5 50.g6 e3 51.Nxe3 Bxg6 52.g4 Bd3 53.Kh2 Kb4 54.
Rf4 Re8 55.Nd5+ Kxa4 56.Kg3 Rd8 57.Ne3 Kb3 58.Rf6 Kxb2 59.Rxa6 c3 60.Nd1+ 
Kc2 61.Ra3 Kxd1 62.Rxc3 Kd2 63.Rc5 Ke3 64.g5 Rd4 65.Re5+ Be4 66.Ra5 Rd1 
67.Ra3+ Bd3 68.Kg4 Rh1 69.Rxd3+ Kxd3 70.Kf5 Rf1+ 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.10"]
[Round "13"]
[White "Ivkov, Borislav"]
[Black "Vaganian, Rafael"]
[Result "1/2-1/2"]
[WhiteElo "2525"]
[BlackElo "2570"]
[ECO "E69"]
[EventDate "1979.09.23"]
[PlyCount "129"]

1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.Nc3 d6 6.Nf3 Nbd7 7.O-O e5 8.e4 c6 
9.h3 Qb6 10.b3 exd4 11.Na4 Qd8 12.Nxd4 Re8 13.Re1 Nc5 14.Nc3 a5 15.Rb1 
Nfd7 16.Be3 h5 17.Qc2 Qe7 18.Rbd1 Nf8 19.Re2 Nfe6 20.Nxe6 Nxe6 21.Qd2 h4 
22.g4 g5 23.Ree1 Be5 24.Ne2 Qf6 25.Rf1 Nf4 26.Nxf4 gxf4 27.Bd4 Be6 28.Bf3 
a4 29.Bxe5 dxe5 30.Qb4 Qe7 31.Qc3 axb3 32.axb3 f6 33.Kh2 Ra2 34.g5 Kg7 35.
gxf6+ Kxf6 36.Rd2 Rxd2 37.Qxd2 Rd8 38.Qc2 Rg8 39.Rd1 Qc5 40.Qe2 Ke7 41.Qd2
Kf6 42.Bg4 Bxg4 43.hxg4 Qd4 44.Qc2 Qb6 45.c5 Qb4 46.Kh3 Kg5 47.Qd3 Qd4 48.
Qxd4 exd4 49.Rxd4 Ra8 50.e5 Ra2 51.Re4 f3 52.Re3 Rxf2 53.e6 Re2 54.Rxf3 
Rxe6 55.Rf5+ Kg6 56.Kxh4 Re3 57.Rg5+ Kh6 58.Rg8 Rxb3 59.g5+ Kh7 60.Rd8 Kg6
61.Rd6+ Kg7 62.Kh5 Rh3+ 63.Kg4 Rb3 64.Kh5 Rh3+ 65.Kg4 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.10"]
[Round "13"]
[White "Velimirovic, Dragoljub"]
[Black "Petrosian, Tigran"]
[Result "1/2-1/2"]
[WhiteElo "2515"]
[BlackElo "2610"]
[ECO "C97"]
[EventDate "1979.09.23"]
[PlyCount "59"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 
9.h3 Na5 10.Bc2 c5 11.d4 Qc7 12.Nbd2 Bd7 13.Nf1 Nc4 14.b3 Nb6 15.Ne3 c4 
16.bxc4 Nxc4 17.Nxc4 bxc4 18.a4 Rfe8 19.Qe2 a5 20.Rb1 Bc8 21.Nh2 Ba6 22.
Nf1 g6 23.Qf3 Rab8 24.Rxb8 Rxb8 25.Ne3 Bb7 26.Ba3 Kg7 27.Rb1 Re8 28.d5 Ba6
29.Ng4 Nxg4 30.Qxg4 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.10"]
[Round "13"]
[White "Shamkovich, Leonid"]
[Black "Sunye Neto, Jaime"]
[Result "1/2-1/2"]
[WhiteElo "2495"]
[BlackElo "2375"]
[ECO "B23"]
[EventDate "1979.09.23"]
[PlyCount "62"]

1.e4 c5 2.Nc3 d6 3.Nge2 e5 4.Nd5 Be7 5.Nec3 Nf6 6.Bc4 O-O 7.d3 Nxd5 8.Nxd5
Bg5 9.Be3 Bxe3 10.Nxe3 Nc6 11.Qh5 Be6 12.O-O Ne7 13.g3 Qd7 14.f4 exf4 15.
Rxf4 Bxc4 16.Nxc4 f5 17.exf5 Nxf5 18.Raf1 g6 19.Qf3 Kg7 20.Qf2 Rfe8 21.g4 
Nh6 22.Ne3 Re7 23.g5 Nf7 24.h4 h6 25.Qg2 hxg5 26.hxg5 Rf8 27.Ng4 Rh8 28.
Nf6 Qh3 29.Ne8+ Kg8 30.Nf6+ Kg7 31.Ne8+ Kg8 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.10"]
[Round "13"]
[White "Huebner, Robert"]
[Black "Timman, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2595"]
[BlackElo "2625"]
[ECO "A33"]
[EventDate "1979.09.23"]
[PlyCount "80"]

1.Nf3 c5 2.c4 Nf6 3.Nc3 Nc6 4.d4 cxd4 5.Nxd4 e6 6.g3 Bc5 7.Nb3 Bb4 8.Bg2 
d5 9.O-O dxc4 10.Nd2 O-O 11.Nxc4 Qe7 12.Bd2 Rd8 13.Qc1 Nd4 14.Re1 e5 15.e3
Nc6 16.Bxc6 bxc6 17.a3 Qe6 18.axb4 Qxc4 19.e4 h6 20.Ra5 Be6 21.Kg2 Rd3 22.
Na4 Qxc1 23.Bxc1 Nd7 24.Be3 Rb8 25.Nc5 Nxc5 26.Bxc5 Bg4 27.Rxa7 Bf3+ 28.
Kh3 h5 29.Ra3 Rbd8 30.Re3 Rxe3 31.Bxe3 Bxe4 32.f4 exf4 33.gxf4 Kh7 34.Kh4 
Kg6 35.Ra5 f6 36.Rc5 Re8 37.Kg3 Bd5 38.Kf2 Rb8 39.b5 Rxb5 40.Rxb5 cxb5 
1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.10"]
[Round "13"]
[White "Kagan, Shimon"]
[Black "Harandi, Khosro"]
[Result "0-1"]
[WhiteElo "2445"]
[BlackElo "2410"]
[ECO "C69"]
[EventDate "1979.09.23"]
[PlyCount "84"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O f6 6.d4 Bg4 7.c3 Bd6 8.Be3 
Ne7 9.Nbd2 Qd7 10.h3 Be6 11.dxe5 fxe5 12.Ng5 Bg8 13.Qh5+ Ng6 14.Rfd1 O-O-O
15.Nf1 Qe8 16.Ng3 h6 17.Nf3 Bf7 18.Nf5 Rg8 19.Rd2 Kb8 20.N3h4 Ne7 21.Qd1 
Nc8 22.Qa4 Bf8 23.Rxd8 Qxd8 24.Nf3 Qf6 25.Qa5 c5 26.b4 Bh5 27.bxc5 Bxf3 
28.gxf3 g6 29.Ng3 h5 30.Rb1 Qc6 31.Qb4 Be7 32.Kg2 Rd8 33.Qb3 Bh4 34.Nf1 g5
35.Nh2 Ne7 36.Rd1 Rf8 37.Qc4 Qf6 38.Qe2 Ng6 39.c6 Qxc6 40.Qd3 Nf4+ 41.Bxf4
gxf4 42.Rb1 Rd8 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.10"]
[Round "13"]
[White "Smejkal, Jan"]
[Black "Sax, Gyula"]
[Result "1/2-1/2"]
[WhiteElo "2550"]
[BlackElo "2590"]
[ECO "D85"]
[EventDate "1979.09.23"]
[PlyCount "52"]

1.Nf3 Nf6 2.c4 g6 3.Nc3 d5 4.d4 Bg7 5.cxd5 Nxd5 6.e4 Nxc3 7.bxc3 c5 8.Be2 
Nc6 9.Be3 Bg4 10.e5 cxd4 11.cxd4 O-O 12.O-O Qd7 13.Qd2 Rfd8 14.Rfd1 Rac8 
15.Rac1 Be6 16.Ne1 f6 17.Qb2 Bd5 18.Nd3 fxe5 19.Nxe5 Nxe5 20.dxe5 Rxc1 21.
Qxc1 e6 22.Bxa7 Ra8 23.Qe3 Qa4 24.Bc5 Qxa2 25.Bf3 Qb3 26.Qxb3 Bxb3 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.10"]
[Round "13"]
[White "Torre, Eugenio"]
[Black "Garcia Gonzales, Guillermo"]
[Result "1-0"]
[WhiteElo "2520"]
[BlackElo "2490"]
[ECO "B46"]
[EventDate "1979.09.23"]
[PlyCount "78"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be2 Nge7 7.Bf4 Ng6 8.Bg3 
Bb4 9.O-O O-O 10.Nxc6 bxc6 11.Bd6 Bxd6 12.Qxd6 e5 13.Rad1 a5 14.Na4 Nf4 
15.Bc4 Qg5 16.g3 Ba6 17.Bxa6 Rxa6 18.Nc5 Raa8 19.Kh1 Qh5 20.f3 Ne2 21.Kg2 
Rfb8 22.b3 Nc3 23.Rd3 Nb5 24.Qxd7 h6 25.Rfd1 Ra7 26.Qh3 Qg5 27.Qh4 Qxh4 
28.gxh4 Raa8 29.c3 h5 30.Kf2 Nc7 31.Rd7 Ne8 32.Re7 Rb5 33.Na4 g6 34.c4 
Rbb8 35.Rxe5 Nc7 36.Rc5 Na6 37.Rxa5 Nb4 38.Rxa8 Rxa8 39.Rd2 Kg7 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.11"]
[Round "14"]
[White "Balashov, Yury"]
[Black "Kagan, Shimon"]
[Result "1-0"]
[WhiteElo "2600"]
[BlackElo "2445"]
[ECO "A44"]
[EventDate "1979.09.23"]
[PlyCount "53"]

1.d4 c5 2.d5 e5 3.e4 d6 4.Nc3 Be7 5.f4 exf4 6.Bxf4 a6 7.Nf3 Bg4 8.e5 Qb6 
9.Qd2 Bxf3 10.gxf3 Bh4+ 11.Bg3 Bxg3+ 12.hxg3 dxe5 13.O-O-O Nd7 14.Bh3 
O-O-O 15.Qg5 Qf6 16.Qe3 Kb8 17.Bxd7 Rxd7 18.Ne4 Qb6 19.Nxc5 Ka7 20.Qxe5 
Qxc5 21.Qxg7 Qe3+ 22.Kb1 Qxf3 23.Qxh8 Rxd5 24.Rdf1 Qg4 25.Qxh7 Nf6 26.Qh4 
Qg6 27.Qc4 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.11"]
[Round "14"]
[White "Petrosian, Tigran"]
[Black "Bronstein, Luis Marcos"]
[Result "1-0"]
[WhiteElo "2610"]
[BlackElo "2420"]
[ECO "D97"]
[EventDate "1979.09.23"]
[PlyCount "55"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 c6 8.Be2 b5
9.Qb3 Qa5 10.Bd2 b4 11.Na4 Nxe4 12.Bxb4 Qc7 13.O-O Na6 14.Bxa6 Bxa6 15.
Rfe1 Nd6 16.Rac1 Rab8 17.Qc3 Nf5 18.Nc5 Bc8 19.b3 Qd8 20.Rcd1 Qd5 21.Na4 
Bf6 22.Bc5 Ra8 23.Qc1 h5 24.Ne5 Nh4 25.f3 Nf5 26.Nc3 Qd8 27.Nxc6 Qc7 28.
Nxe7+ 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.11"]
[Round "14"]
[White "Hebert, Jean"]
[Black "Portisch, Lajos"]
[Result "0-1"]
[WhiteElo "2365"]
[BlackElo "2640"]
[ECO "B93"]
[EventDate "1979.09.23"]
[PlyCount "90"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 e5 7.Nb3 Nbd7 8.a4 b6 
9.Be2 Bb7 10.Bf3 Be7 11.O-O O-O 12.Kh1 exf4 13.Bxf4 Ne5 14.Nd4 g6 15.Qe2 
Re8 16.Rad1 Nfd7 17.Bg4 Bf8 18.Bh3 Qc7 19.Qf2 Rad8 20.Bg5 Be7 21.Bxe7 Rxe7
22.Qg3 Nc5 23.Rf4 Ree8 24.Nf5 Ne6 25.Nh6+ Kg7 26.Rh4 Kh8 27.Rf1 Qe7 28.
Bxe6 fxe6 29.Rhf4 Rf8 30.Ng4 Nd7 31.Rd1 e5 32.Rxf8+ Rxf8 33.Kg1 Nf6 34.
Nxf6 Rxf6 35.Qe3 Qc7 36.Rf1 Rxf1+ 37.Kxf1 Kg7 38.Qd3 Qc5 39.b3 Bc6 40.g3 
b5 41.axb5 axb5 42.Kg2 b4 43.Na4 Qd4 44.Qe2 Bxe4+ 45.Kf1 Bf5 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.11"]
[Round "14"]
[White "Harandi, Khosro"]
[Black "Shamkovich, Leonid"]
[Result "1-0"]
[WhiteElo "2410"]
[BlackElo "2495"]
[ECO "B82"]
[EventDate "1979.09.23"]
[PlyCount "88"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be3 a6 7.f4 Qc7 8.Qf3 b5 
9.Bd3 Bb7 10.a3 Nbd7 11.g4 Nb6 12.g5 Nfd7 13.Qh3 e5 14.Nde2 Be7 15.O-O 
exf4 16.Bxf4 Ne5 17.Rf2 O-O 18.Qg3 Rac8 19.b3 Nxd3 20.cxd3 Qd7 21.Be3 Bd8 
22.Bd4 Qe6 23.Rb1 Nd7 24.Nf4 Qe7 25.Ncd5 Qxg5 26.Qxg5 Bxg5 27.Rg2 f6 28.
Ne7+ Kf7 29.Nxc8 Bxf4 30.Rf1 g5 31.Rxf4 Rxc8 32.Rxg5 Rc1+ 33.Kf2 Rc2+ 34.
Ke3 Rxh2 35.Rgf5 Rh6 36.Rf2 Ke6 37.Rc2 Ne5 38.Bxe5 dxe5 39.Rc7 Bd5 40.Rf1 
Kd6 41.Ra7 Bc6 42.Rc1 Rh3+ 43.Kd2 Rh2+ 44.Kc3 a5 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.11"]
[Round "14"]
[White "Vaganian, Rafael"]
[Black "Smejkal, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2570"]
[BlackElo "2550"]
[ECO "A45"]
[EventDate "1979.09.23"]
[PlyCount "62"]

1.d4 Nf6 2.Bg5 Ne4 3.Bh4 d5 4.f3 g5 5.fxe4 gxh4 6.exd5 Qxd5 7.Nc3 Qa5 8.e3
Bh6 9.Qf3 Nd7 10.Nh3 c6 11.Bc4 Nf6 12.O-O Bg4 13.Qf2 Bxh3 14.gxh3 O-O-O 
15.Kh1 Rhf8 16.Rae1 Bg5 17.Qf3 Kb8 18.Nd1 h6 19.c3 Ne8 20.Nf2 Nd6 21.Bb3 
e5 22.Ne4 Nxe4 23.Qxe4 exd4 24.exd4 Qc7 25.Qf5 Rde8 26.Re5 Rxe5 27.Qxe5 
Qxe5 28.dxe5 f6 29.Kg2 Kc7 30.Rf5 Kd7 31.Kf3 Ke7 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.11"]
[Round "14"]
[White "Garcia Gonzales, Guillermo"]
[Black "Huebner, Robert"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2595"]
[ECO "A36"]
[EventDate "1979.09.23"]
[PlyCount "101"]

1.c4 c5 2.g3 g6 3.Bg2 Bg7 4.Nc3 Nc6 5.d3 e6 6.h4 h6 7.Bd2 Nge7 8.Ne4 d6 9.
Qc1 b6 10.Bc3 e5 11.Bd2 Be6 12.Nf3 Rc8 13.O-O d5 14.cxd5 Nxd5 15.Re1 Nd4 
16.b3 a5 17.Rb1 Qd7 18.Rb2 Kf8 19.Nc3 Ne7 20.Na4 Qa7 21.Nxd4 exd4 22.Rc2 
Kg8 23.e4 dxe3 24.Bxe3 Kh7 25.h5 g5 26.Nc3 Qd7 27.Ne4 Nf5 28.Rce2 Rhe8 29.
Bh3 Nd4 30.Bxd4 Bxd4 31.Bxe6 Rxe6 32.Kg2 Rce8 33.g4 R6e7 34.f3 f5 35.gxf5 
Qxf5 36.Rf1 Be5 37.Qe1 Rf7 38.Nd2 b5 39.Re4 Ree7 40.Qe2 Bd6 41.Re1 Rg7 42.
Rxe7 Rxe7 43.Ne4 Qf4 44.Kf1 g4 45.Qe3 Qh2 46.Qg1 Qxg1+ 47.Kxg1 gxf3 48.Kf2
Be5 49.Kxf3 Rf7+ 50.Ke2 Rf5 51.Rh1 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.11"]
[Round "14"]
[White "Sunye Neto, Jaime"]
[Black "Torre, Eugenio"]
[Result "0-1"]
[WhiteElo "2375"]
[BlackElo "2520"]
[ECO "A29"]
[EventDate "1979.09.23"]
[PlyCount "82"]

1.c4 e5 2.Nc3 Nf6 3.g3 d5 4.cxd5 Nxd5 5.Bg2 Nb6 6.Nf3 Nc6 7.d3 Be7 8.O-O 
O-O 9.a3 a5 10.Be3 Re8 11.Rc1 Bg4 12.Ne4 Nd4 13.Bxd4 exd4 14.Qd2 c6 15.Rc2
a4 16.Qf4 Bc8 17.Qd2 Be6 18.Nc5 Bxc5 19.Rxc5 Nd7 20.Rcc1 Qb6 21.Qb4 Bg4 
22.Nxd4 Bxe2 23.Rfe1 Qxb4 24.axb4 Bxd3 25.Nxc6 bxc6 26.Bxc6 Bf5 27.Bxa8 
Rxa8 28.Rc3 Be6 29.Ra1 Nb6 30.Rc6 Rb8 31.Rd1 Kf8 32.Rd4 Rb7 33.Rc5 Ke7 34.
Rb5 Bd7 35.Rc5 Be6 36.Rb5 Rd7 37.Rxd7+ Nxd7 38.Ra5 Bb3 39.Ra6 Ne5 40.b5 
Kd7 41.Ra7+ Kc8 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.12"]
[Round "15"]
[White "Shamkovich, Leonid"]
[Black "Balashov, Yury"]
[Result "1/2-1/2"]
[WhiteElo "2495"]
[BlackElo "2600"]
[ECO "A26"]
[EventDate "1979.09.23"]
[PlyCount "85"]

1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.Rb1 a5 7.a3 Nf6 8.e3 O-O 9.
Nge2 Ne7 10.O-O d5 11.cxd5 Nexd5 12.e4 Ne7 13.h3 Nc6 14.Be3 Nd4 15.f4 Nd7 
16.f5 Nb6 17.g4 c5 18.b3 Bd7 19.a4 Bc6 20.Rb2 Re8 21.Nc1 gxf5 22.gxf5 Qh4 
23.Qg4 Qxg4 24.hxg4 f6 25.Kf2 Kf7 26.Rh1 Rh8 27.Bf3 h5 28.g5 fxg5 29.Bxh5+
Ke7 30.Bxg5+ Bf6 31.Bxf6+ Kxf6 32.Kf1 Rh6 33.Rh3 Rah8 34.Rbh2 Be8 35.Bg4 
Rxh3 36.Rxh3 Rxh3 37.Bxh3 Bf7 38.Nb5 Nxb5 39.axb5 Nc8 40.Bg4 b6 41.Ke1 Nd6
42.Bd1 Nxb5 43.Ne2 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.12"]
[Round "15"]
[White "Ivkov, Borislav"]
[Black "Garcia Gonzales, Guillermo"]
[Result "1/2-1/2"]
[WhiteElo "2525"]
[BlackElo "2490"]
[ECO "E90"]
[EventDate "1979.09.23"]
[PlyCount "121"]

1.Nf3 Nf6 2.c4 c5 3.Nc3 g6 4.d4 Bg7 5.d5 d6 6.e4 O-O 7.h3 Re8 8.Bd3 e6 9.
O-O exd5 10.exd5 a6 11.a4 b6 12.Bf4 Ra7 13.Qd2 Rae7 14.Bh2 Bf8 15.Rab1 Rb7
16.b4 Nbd7 17.Rb3 Ne5 18.Be2 Nxf3+ 19.Bxf3 Nd7 20.Ne4 Ne5 21.bxc5 Nxf3+ 
22.gxf3 dxc5 23.Re1 Bg7 24.Rbe3 Rf8 25.Nd6 Bh6 26.Nxb7 Bxb7 27.f4 Bc8 28.
Qe2 Bd7 29.Re7 Bg7 30.f5 Bf6 31.d6 Bxf5 32.Re8 Qd7 33.Rxf8+ Kxf8 34.Be5 
Bd8 35.Qe3 f6 36.Bg3 a5 37.Qh6+ Kg8 38.h4 Be6 39.Qe3 Bf7 40.Qf3 Bxc4 41.h5
gxh5 42.Qxh5 Bf7 43.Qf3 Kg7 44.Bf4 Bg6 45.Kh2 Bf5 46.Qd5 Bg6 47.Re3 Bf7 
48.Rg3+ Bg6 49.Rh3 Bf7 50.Rg3+ Bg6 51.Rh3 Bf7 52.Bh6+ Kh8 53.Qe4 Qxd6+ 54.
Bf4 Bg6 55.Bxd6 Bxe4 56.Re3 Bg6 57.f4 Kg7 58.f5 Bh5 59.Kg3 Kf7 60.Re1 c4 
61.Kf4 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.12"]
[Round "15"]
[White "Kagan, Shimon"]
[Black "Petrosian, Tigran"]
[Result "0-1"]
[WhiteElo "2445"]
[BlackElo "2610"]
[ECO "B81"]
[EventDate "1979.09.23"]
[PlyCount "60"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g4 Nc6 7.g5 Nd7 8.Be3 a6 
9.h4 Be7 10.Rg1 Na5 11.Qd2 Qc7 12.O-O-O g6 13.f4 b5 14.f5 Ne5 15.Qf2 Nac4 
16.Bxc4 Nxc4 17.Rgf1 O-O 18.f6 Bd8 19.h5 b4 20.Nce2 e5 21.Nb3 Bg4 22.hxg6 
fxg6 23.Kb1 Rc8 24.Rc1 a5 25.c3 Qb7 26.Ng3 a4 27.Na1 Be6 28.cxb4 Qxb4 29.
b3 axb3 30.Nxb3 Ra8 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.12"]
[Round "15"]
[White "Smejkal, Jan"]
[Black "Timman, Jan"]
[Result "0-1"]
[WhiteElo "2550"]
[BlackElo "2625"]
[ECO "A17"]
[EventDate "1979.09.23"]
[PlyCount "88"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 Bb4 4.Qc2 O-O 5.a3 Bxc3 6.Qxc3 b6 7.b3 Bb7 8.Bb2 
d6 9.e3 e5 10.d4 Ne4 11.Qc2 Ng5 12.Nxg5 Qxg5 13.d5 Nd7 14.g3 c6 15.Bh3 
Rad8 16.dxc6 Bxc6 17.O-O Nc5 18.Bg2 Bxg2 19.Kxg2 Qg6 20.Qc3 d5 21.Qxe5 
dxc4 22.Rad1 Rxd1 23.Rxd1 cxb3 24.Rd4 f6 25.Qd6 h6 26.e4 Re8 27.f3 Qf7 28.
a4 Ne6 29.Rd5 Rc8 30.Rd2 Rd8 31.Qb4 Rxd2+ 32.Qxd2 Nc5 33.a5 Qd7 34.Qb4 Qa4
35.Qd2 Qc4 36.axb6 axb6 37.Kf2 Nd3+ 38.Ke3 Nxb2 39.Qxb2 Kf7 40.h4 Ke6 41.
f4 Qc2 42.f5+ Kd6 43.Qd4+ Kc7 44.Qa4 Qc3+ 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.12"]
[Round "15"]
[White "Sax, Gyula"]
[Black "Vaganian, Rafael"]
[Result "1-0"]
[WhiteElo "2590"]
[BlackElo "2570"]
[ECO "C08"]
[EventDate "1979.09.23"]
[PlyCount "69"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 exd5 5.Bb5+ Nc6 6.Qe2+ Be7 7.dxc5 Nf6 8.
Nb3 O-O 9.Be3 Na5 10.Nf3 a6 11.Bd3 Re8 12.Nfd4 Bg4 13.f3 Nxb3 14.Nxb3 d4 
15.fxg4 Bxc5 16.O-O Rxe3 17.Qf2 Qd5 18.Qh4 Rae8 19.Rf5 R8e5 20.Raf1 Be7 
21.g5 Ne4 22.Rxf7 Nxg5 23.R7f4 b5 24.Qf2 Bf6 25.Rxd4 Qe6 26.Rd8+ Kf7 27.
Bf5 Qb6 28.Rd7+ Ke8 29.Rd3 Nf7 30.Bxh7 Nd6 31.Bg6+ Kf8 32.Nd4 Rxd3 33.Ne6+
Rxe6 34.Qxb6 Rd2 35.Qd8+ 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.12"]
[Round "15"]
[White "Huebner, Robert"]
[Black "Sunye Neto, Jaime"]
[Result "1-0"]
[WhiteElo "2595"]
[BlackElo "2375"]
[ECO "A30"]
[EventDate "1979.09.23"]
[PlyCount "67"]

1.c4 Nf6 2.Nc3 c5 3.Nf3 e6 4.g3 b6 5.Bg2 Bb7 6.O-O Be7 7.d4 Ne4 8.Nxe4 
Bxe4 9.d5 O-O 10.Qb3 Qc7 11.Rd1 exd5 12.cxd5 d6 13.Nd2 Bxg2 14.Kxg2 Re8 
15.Nc4 Bf8 16.Re1 Nd7 17.a4 Nf6 18.Qf3 Qb7 19.Rd1 Re4 20.Ne3 Rae8 21.b3 a6
22.Ra2 Nd7 23.Nc4 Qc7 24.Bf4 b5 25.axb5 axb5 26.Ne3 c4 27.bxc4 bxc4 28.
Rda1 Nc5 29.Ra7 Qb6 30.Nf5 Nb7 31.R1a6 Qb5 32.Bxd6 Qxd5 33.Bxf8 Kxf8 34.
Nd6 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.12"]
[Round "15"]
[White "Torre, Eugenio"]
[Black "Harandi, Khosro"]
[Result "1-0"]
[WhiteElo "2520"]
[BlackElo "2410"]
[ECO "A00"]
[EventDate "1979.09.23"]
[PlyCount "121"]

1.g3 Nf6 2.Bg2 e6 3.e4 d5 4.e5 Nfd7 5.d4 c5 6.c3 Nc6 7.Ne2 h5 8.h4 b5 9.a3
Qb6 10.O-O a5 11.Be3 Ba6 12.Re1 Be7 13.Nf4 cxd4 14.cxd4 g6 15.Nc3 Rc8 16.
Rc1 Qb8 17.Qd3 Rg8 18.Bf1 Na7 19.Ncxd5 exd5 20.Nxd5 Rxc1 21.Bxc1 Bb7 22.
Nxe7 Kxe7 23.Bg5+ Kf8 24.Bh6+ Ke7 25.Qe3 Nb6 26.Bg5+ Ke8 27.e6 f5 28.Qc3 
Qc8 29.Qc5 Qxc5 30.dxc5 Nd5 31.Rd1 Bc6 32.Bg2 Ne7 33.Bxc6+ Naxc6 34.Rd7 
Rg7 35.Bf6 Rh7 36.Rb7 Nd5 37.Rxh7 Nxf6 38.Rb7 b4 39.axb4 axb4 40.Rb6 Nd4 
41.Rxb4 Nxe6 42.Rb6 Kd7 43.b4 Ne4 44.Kg2 Nc3 45.f3 Na4 46.Rb7+ Nc7 47.Kf2 
Kc8 48.c6 Nc3 49.Ke3 N3b5 50.Kf4 Nd4 51.b5 Ndxb5 52.Kg5 Nd4 53.Kxg6 Nxc6 
54.Rb1 Nd4 55.Kxh5 Kd7 56.Kg6 f4 57.gxf4 Nxf3 58.h5 Ne6 59.h6 Nfd4 60.Rd1 
Ke7 61.Rxd4 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.12"]
[Round "15"]
[White "Velimirovic, Dragoljub"]
[Black "Hebert, Jean"]
[Result "1-0"]
[WhiteElo "2515"]
[BlackElo "2365"]
[ECO "B81"]
[EventDate "1979.09.23"]
[PlyCount "113"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be3 a6 7.g4 Nc6 8.Rg1 Qc7
9.g5 Nd7 10.Bc4 Nxd4 11.Qxd4 Ne5 12.Be2 b5 13.f4 Nc6 14.Qd2 Na5 15.O-O-O 
Rb8 16.b3 Be7 17.Bd4 b4 18.Rg3 bxc3 19.Rxc3 Nc6 20.Bxg7 Rg8 21.Bf6 Bd7 22.
Bxe7 Kxe7 23.Rd3 Nb4 24.Rxd6 Rgd8 25.Bc4 Nd5 26.Rxd7+ Rxd7 27.exd5 exd5 
28.Bxd5 Kf8 29.Kb2 Rc8 30.c4 Re7 31.Qd4 Kg8 32.Rd2 Rce8 33.f5 Re2 34.g6 
Rxd2+ 35.Qxd2 Qe5+ 36.Qc3 Qxh2+ 37.Ka3 hxg6 38.Qf6 Qc7 39.Qxg6+ Kf8 40.
Qh6+ Kg8 41.Qxa6 Kg7 42.b4 Qe5 43.f6+ Kg6 44.Qb7 Kxf6 45.Qxf7+ Kg5 46.Ka4 
Re7 47.Qg8+ Kf4 48.Qf8+ Ke3 49.Kb5 Kd4 50.Qf2+ Kc3 51.Qf3+ Kd2 52.c5 Rh7 
53.Qe4 Qb8+ 54.Kc4 Qa7 55.Qg2+ Ke1 56.Qg3+ Kf1 57.Kb3 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.14"]
[Round "16"]
[White "Balashov, Yury"]
[Black "Torre, Eugenio"]
[Result "1/2-1/2"]
[WhiteElo "2600"]
[BlackElo "2520"]
[ECO "B18"]
[EventDate "1979.09.23"]
[PlyCount "43"]

1.e4 c6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.Nf3 Nd7 7.Bd3 e6 8.O-O 
Be7 9.c4 Ngf6 10.b3 O-O 11.Bb2 Qc7 12.Bxg6 hxg6 13.Qe2 Rfe8 14.Rad1 c5 15.
dxc5 Bxc5 16.Ng5 Rad8 17.N3e4 Nxe4 18.Nxe4 Be7 19.Qf3 b6 20.h3 Nc5 21.Qc3 
Bf8 22.Nxc5 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.14"]
[Round "16"]
[White "Sunye Neto, Jaime"]
[Black "Ivkov, Borislav"]
[Result "0-1"]
[WhiteElo "2375"]
[BlackElo "2525"]
[ECO "E07"]
[EventDate "1979.09.23"]
[PlyCount "64"]

1.c4 e6 2.Nf3 d5 3.d4 Nf6 4.Nc3 c6 5.Qd3 Nbd7 6.g3 Be7 7.Bg2 O-O 8.O-O b6 
9.b3 a5 10.e4 Ba6 11.exd5 cxd5 12.Bf4 Rc8 13.Nb5 Bxb5 14.cxb5 Ba3 15.Nd2 
Nh5 16.Be3 Qc7 17.Qe2 Nhf6 18.Nb1 Bd6 19.Qd2 Bb4 20.Qe2 Qc2 21.Bf3 Qf5 22.
a3 Rc2 23.Qd1 Bd6 24.Be2 Rc7 25.Ra2 Rfc8 26.Kg2 e5 27.dxe5 Qxe5 28.Bf3 Qf5
29.Rd2 Ne5 30.Bxd5 Rc1 31.Bb7 Rxd1 32.Rfxd1 Bf8 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.14"]
[Round "16"]
[White "Petrosian, Tigran"]
[Black "Shamkovich, Leonid"]
[Result "1/2-1/2"]
[WhiteElo "2610"]
[BlackElo "2495"]
[ECO "A04"]
[EventDate "1979.09.23"]
[PlyCount "82"]

1.Nf3 c5 2.g3 Nc6 3.Bg2 g6 4.c3 Bg7 5.d4 cxd4 6.cxd4 Qb6 7.e3 Nf6 8.O-O d5
9.Nc3 O-O 10.Ne5 e6 11.Nd3 Qd8 12.b3 b6 13.Re1 Ba6 14.Bb2 Rc8 15.Qd2 Qe7 
16.Rac1 Rfd8 17.Bf1 Ne4 18.Qd1 Bb7 19.Ne2 Qe8 20.f3 Nd6 21.Qd2 Ne7 22.g4 
Rxc1 23.Rxc1 Rc8 24.Ne5 Rxc1 25.Qxc1 Qc8 26.Qxc8+ Nexc8 27.Nf4 Bf6 28.Be2 
Be7 29.Kf1 f6 30.Ned3 Kf7 31.Ke1 g5 32.Nh5 Bc6 33.Kd1 Nb5 34.a4 Nc7 35.Bc3
a5 36.Be1 Nd6 37.Ng3 h6 38.Bf1 Bb7 39.Bc3 Ke8 40.Nf2 Nf7 41.Bd3 Kf8 
1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.14"]
[Round "16"]
[White "Portisch, Lajos"]
[Black "Velimirovic, Dragoljub"]
[Result "1-0"]
[WhiteElo "2640"]
[BlackElo "2515"]
[ECO "D32"]
[EventDate "1979.09.23"]
[PlyCount "113"]

1.c4 e6 2.Nc3 d5 3.d4 c5 4.cxd5 cxd4 5.Qa4+ Bd7 6.Qxd4 exd5 7.Qxd5 Nc6 8.
Nf3 Nf6 9.Qd1 Bc5 10.e3 Qe7 11.Be2 g5 12.O-O O-O-O 13.b4 Bxb4 14.Qb3 g4 
15.Nd4 Nxd4 16.exd4 Be6 17.Qb2 Nd5 18.Nb5 Kb8 19.Bc4 Ba5 20.Bd2 Bxd2 21.
Qxd2 Qf6 22.Qa5 a6 23.Bxd5 Bxd5 24.Qc7+ Ka8 25.a4 Rc8 26.Qg3 Bc4 27.Rfd1 
Qb6 28.Nd6 Rc6 29.Rab1 Qc7 30.Nxb7 Qxg3 31.hxg3 Bd5 32.Nc5 h5 33.Re1 Rb8 
34.Rbd1 Rd8 35.Re5 Rcd6 36.Rb1 Be6 37.Kh2 Rb8 38.Rxb8+ Kxb8 39.Rxh5 Bc8 
40.Rh8 Kc7 41.Rh7 Rxd4 42.Rxf7+ Kb6 43.Rf8 Kc7 44.Rf4 Rxf4 45.gxf4 Kb6 46.
Nb3 Bd7 47.a5+ Kb5 48.f5 Bxf5 49.Nd4+ Kxa5 50.Nxf5 Kb4 51.Ne3 a5 52.f4 
gxf3 53.g4 Kc3 54.g5 Kd4 55.Ng4 Kd5 56.Kg3 Ke6 57.Ne3 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.14"]
[Round "16"]
[White "Timman, Jan"]
[Black "Sax, Gyula"]
[Result "1-0"]
[WhiteElo "2625"]
[BlackElo "2590"]
[ECO "A16"]
[EventDate "1979.09.23"]
[PlyCount "73"]

1.Nf3 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.Qa4+ Nc6 6.Ne5 Nb4 7.a3 Bg7 8.
axb4 Bxe5 9.b5 Nb8 10.e3 Bg7 11.d4 O-O 12.Be2 c6 13.O-O cxb5 14.Qxb5 Nc6 
15.Bf3 a6 16.Qb3 Qd7 17.Rd1 Rb8 18.Bd2 b6 19.Rdc1 Bb7 20.Nd5 Qd8 21.Qa3 
Kh8 22.Nb4 Nxb4 23.Bxb7 a5 24.Bf3 e5 25.Bxb4 axb4 26.Qxb4 exd4 27.Rd1 Qh4 
28.Ra7 Be5 29.h3 Qf6 30.exd4 Qf4 31.Rd7 Bc7 32.Kf1 Rbe8 33.Re1 Qh2 34.Re4 
Qh1+ 35.Ke2 Qb1 36.Rde7 Rc8 37.Rxc7 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.14"]
[Round "16"]
[White "Garcia Gonzales, Guillermo"]
[Black "Smejkal, Jan"]
[Result "0-1"]
[WhiteElo "2490"]
[BlackElo "2550"]
[ECO "A28"]
[EventDate "1979.09.23"]
[PlyCount "78"]

1.c4 Nf6 2.Nc3 e5 3.Nf3 Nc6 4.d3 d5 5.cxd5 Nxd5 6.e3 g6 7.Bd2 Bg7 8.a3 O-O
9.Be2 Nxc3 10.Bxc3 a5 11.O-O a4 12.Nd2 Be6 13.Qc2 Qd7 14.Rfc1 Rfd8 15.b4 
axb3 16.Nxb3 b6 17.Nd2 Ra7 18.Qb2 f6 19.Ne4 Na5 20.Rf1 Bd5 21.f4 f5 22.Ng3
exf4 23.Rxf4 Nb3 24.Raf1 Nc5 25.Bxg7 Qxg7 26.d4 Ne6 27.R4f2 Rda8 28.Qc1 
Rxa3 29.Bc4 Qd7 30.e4 Bxc4 31.Qxc4 R8a4 32.Qc2 Nxd4 33.Qd1 Ra1 34.Qxa1 
Rxa1 35.Rxa1 f4 36.Ra8+ Kg7 37.Rxf4 Qc6 38.Raf8 Ne6 39.R8f7+ Kh6 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.14"]
[Round "16"]
[White "Harandi, Khosro"]
[Black "Huebner, Robert"]
[Result "1/2-1/2"]
[WhiteElo "2410"]
[BlackElo "2595"]
[ECO "B67"]
[EventDate "1979.09.23"]
[PlyCount "138"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
Bd7 9.f4 b5 10.Nxc6 Bxc6 11.Qe3 Be7 12.Bxf6 gxf6 13.Bd3 Qc7 14.Kb1 Qa7 15.
Qh3 O-O-O 16.Qh5 Rdf8 17.Rhf1 Be8 18.a4 b4 19.Ne2 Kb7 20.b3 Qc5 21.f5 Rhg8
22.Nf4 Qe5 23.Qe2 a5 24.Bc4 Bd7 25.g3 Rc8 26.Rf3 Rc7 27.Nd5 Bc6 28.Nxc7 
Kxc7 29.Re3 Bf8 30.Bd5 Bh6 31.Bxc6 Bxe3 32.Qxe3 Kxc6 33.Qa7 Rc8 34.Rd4 d5 
35.exd5+ exd5 36.Qa6+ Kd7 37.Qb7+ Kd6 38.Rxd5+ Qxd5 39.Qxc8 Ke5 40.Ka2 Kd4
41.g4 h6 42.h3 Ke3 43.Qc4 Qd2 44.Kb1 Qd1+ 45.Kb2 Qd6 46.Qf1 Qd4+ 47.Kb1 
Qe5 48.Qc4 Qd6 49.Kc1 Qd2+ 50.Kb2 Qd6 51.Qf1 Qd4+ 52.Kb1 Qc3 53.Qd1 Kf4 
54.Qd3 Qe1+ 55.Kb2 Qf2 56.Qd5 Kg3 57.Qd6+ Kxh3 58.Qxf6 Kxg4 59.Qg7+ Kf4 
60.Qxh6+ Ke4 61.Qh1+ Ke5 62.Qh8+ f6 63.Qe8+ Kxf5 64.Qh5+ Kf4 65.Qxa5 Qd4+ 
66.Kb1 Qd1+ 67.Kb2 Qd4+ 68.Kb1 Qd1+ 69.Kb2 Qd4+ 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.14"]
[Round "16"]
[White "Hebert, Jean"]
[Black "Bronstein, Luis Marcos"]
[Result "1/2-1/2"]
[WhiteElo "2365"]
[BlackElo "2420"]
[ECO "C64"]
[EventDate "1979.09.23"]
[PlyCount "74"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.O-O Nd4 5.Nxd4 Bxd4 6.c3 Bb6 7.d4 c6 8.Bc4 
d6 9.Qb3 Qe7 10.Be3 Nf6 11.dxe5 dxe5 12.Bxb6 axb6 13.Qxb6 Nxe4 14.Re1 Nd6 
15.Bf1 O-O 16.a4 f6 17.Nd2 Be6 18.Ne4 Nxe4 19.Rxe4 Bd5 20.Ree1 Rfd8 21.a5 
h5 22.Red1 h4 23.Rd2 Be4 24.Rad1 Rxd2 25.Rxd2 f5 26.b4 Qg5 27.Qe3 Qxe3 28.
fxe3 Bd5 29.c4 Be6 30.Rd6 Kf7 31.c5 Ke7 32.Kf2 Rd8 33.a6 bxa6 34.Rxd8 Kxd8
35.Bxa6 g5 36.g3 hxg3+ 37.hxg3 Kc7 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.15"]
[Round "14"]
[White "Timman, Jan"]
[Black "Ivkov, Borislav"]
[Result "1/2-1/2"]
[WhiteElo "2625"]
[BlackElo "2525"]
[ECO "E11"]
[EventDate "1979.09.23"]
[PlyCount "89"]

1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Nbd2 c5 5.a3 Bxd2+ 6.Bxd2 cxd4 7.Nxd4 Nc6 8.
Bc3 O-O 9.Qc2 d5 10.e3 Bd7 11.Nf3 Ne4 12.cxd5 exd5 13.Bd3 Nxc3 14.Qxc3 Rc8
15.O-O Bg4 16.Nd4 Qb6 17.h3 Nxd4 18.Qxd4 Qxd4 19.exd4 Bd7 20.Rac1 Rxc1 21.
Rxc1 Rc8 22.Rc5 Be6 23.Kh2 b6 24.Rxc8+ Bxc8 25.Kg3 f6 26.h4 h6 27.Bg6 Kf8 
28.Kf4 Ke7 29.g4 Bd7 30.g5 hxg5+ 31.hxg5 Ba4 32.Bh5 Bc2 33.Bf3 Ke6 34.Bg4+
Ke7 35.Bf5 Ba4 36.Bh3 Bc2 37.Bg2 Ke6 38.gxf6 gxf6 39.Bh3+ Ke7 40.Bc8 Bd3 
41.Kg4 Be2+ 42.Kh4 Bd1 43.Bg4 Bc2 44.Kh5 Be4 45.Kh6 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.16"]
[Round "17"]
[White "Huebner, Robert"]
[Black "Balashov, Yury"]
[Result "1-0"]
[WhiteElo "2595"]
[BlackElo "2600"]
[ECO "A21"]
[EventDate "1979.09.23"]
[PlyCount "69"]

1.c4 e5 2.Nc3 d6 3.d4 exd4 4.Qxd4 Nc6 5.Qd2 Nf6 6.b3 Be6 7.e4 a5 8.Nge2 a4
9.Rb1 axb3 10.axb3 g6 11.g3 Bg7 12.Bg2 O-O 13.O-O Nd7 14.Nd5 Nc5 15.b4 Na4
16.Qc2 Ne5 17.Nef4 Bd7 18.Re1 c6 19.Ne3 Ng4 20.Rb3 Qe7 21.Rd1 Nxe3 22.Bxe3
Bg4 23.Rd2 g5 24.Ne2 Bxe2 25.Rxe2 Qf6 26.Rd2 Nc3 27.h3 b5 28.cxb5 cxb5 29.
Kh2 Rac8 30.Bd4 Qxd4 31.Rxd4 Bxd4 32.Qd2 Bf6 33.Qxd6 Bg7 34.e5 Rfd8 35.
Rxc3 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.16"]
[Round "17"]
[White "Ivkov, Borislav"]
[Black "Harandi, Khosro"]
[Result "1/2-1/2"]
[WhiteElo "2525"]
[BlackElo "2410"]
[ECO "E12"]
[EventDate "1979.09.23"]
[PlyCount "82"]

1.Nf3 Nf6 2.d4 e6 3.c4 b6 4.a3 d5 5.cxd5 exd5 6.Nc3 Be7 7.Bf4 O-O 8.e3 c5 
9.Be2 Ne4 10.O-O Nc6 11.dxc5 Nxc3 12.bxc3 Bxc5 13.Qa4 Bb7 14.Rfd1 Qf6 15.
Qc2 Na5 16.Ne5 Rfd8 17.Nd3 Bf8 18.Be5 Qh6 19.Bd4 Nc4 20.a4 Re8 21.Bf3 Rad8
22.Nb2 Bd6 23.g3 Ne5 24.Bxe5 Bxe5 25.Nc4 Bb8 26.Na3 Qf6 27.Bg2 Rc8 28.Nb5 
Rc5 29.Qb3 a6 30.Nd4 g6 31.Rab1 Bc7 32.Rd3 Rb8 33.Ne2 Qe6 34.Rbd1 Qg4 35.
R1d2 b5 36.h3 Qxa4 37.Qb1 Qa5 38.Bxd5 Bxd5 39.Rxd5 Rxd5 40.Rxd5 Qb6 41.Nd4
Re8 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.16"]
[Round "17"]
[White "Torre, Eugenio"]
[Black "Petrosian, Tigran"]
[Result "1/2-1/2"]
[WhiteElo "2520"]
[BlackElo "2610"]
[ECO "C99"]
[EventDate "1979.09.23"]
[PlyCount "35"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 
9.h3 Na5 10.Bc2 c5 11.d4 Qc7 12.Nbd2 cxd4 13.cxd4 Nc6 14.a3 Bb7 15.Nb3 a5 
16.Be3 a4 17.Nbd2 Rfc8 18.Rc1 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.16"]
[Round "17"]
[White "Bronstein, Luis Marcos"]
[Black "Portisch, Lajos"]
[Result "0-1"]
[WhiteElo "2420"]
[BlackElo "2640"]
[ECO "B97"]
[EventDate "1979.09.23"]
[PlyCount "79"]

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 Qc7 10.O-O-O Nbd7 11.Bd3 b5 12.a3 Bb7 13.Rhe1 O-O-O 14.Qe2 Nc5 15.
Nxc5 dxc5 16.e5 c4 17.Be4 Nxe4 18.Nxe4 Bxg5 19.fxg5 Bxe4 20.Qxe4 Qb7 21.
Qxb7+ Kxb7 22.Rf1 Rxd1+ 23.Kxd1 Rd8+ 24.Ke2 Rd7 25.Ke3 Kc6 26.Rf4 a5 27.
Rd4 Rd5 28.Re4 Kc5 29.h4 b4 30.axb4+ axb4 31.g4 h6 32.gxh6 gxh6 33.Ke2 Rd4
34.Ke3 Rd1 35.Rf4 Rb1 36.Rxf7 Rxb2 37.Rf2 b3 38.Rf8 Rxc2 39.Rc8+ Kd5 40.g5
0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.16"]
[Round "17"]
[White "Vaganian, Rafael"]
[Black "Timman, Jan"]
[Result "0-1"]
[WhiteElo "2570"]
[BlackElo "2625"]
[ECO "E12"]
[EventDate "1979.09.23"]
[PlyCount "84"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.cxd5 Nxd5 7.e3 Be7 8.Bb5+ c6
9.Bd3 O-O 10.Qc2 h6 11.Bd2 Nd7 12.e4 Nxc3 13.bxc3 c5 14.O-O Rc8 15.Qb1 Qc7
16.a4 Rfd8 17.Rc1 Bc6 18.Be3 Qb7 19.Nd2 Nb8 20.f3 Bg5 21.f4 Be7 22.Nc4 
cxd4 23.cxd4 Na6 24.Ne5 Nb4 25.Nxc6 Rxc6 26.Qb3 Rdc8 27.Rxc6 Rxc6 28.Bd2 
Qd7 29.d5 Nxd3 30.Qxd3 exd5 31.Kh1 Rc4 32.exd5 Rc5 33.Be3 Rxd5 34.Qc2 Rd3 
35.Bg1 Qd5 36.Re1 Rd2 37.Qc8+ Kh7 38.Qg4 f5 39.Qh3 Bf6 40.Rf1 Qe4 41.a5 
bxa5 42.Bxa7 Rd3 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.16"]
[Round "17"]
[White "Kagan, Shimon"]
[Black "Hebert, Jean"]
[Result "1-0"]
[WhiteElo "2445"]
[BlackElo "2365"]
[ECO "C03"]
[EventDate "1979.09.23"]
[PlyCount "79"]

1.e4 e6 2.d4 d5 3.Nd2 Nc6 4.c3 dxe4 5.Nxe4 Nge7 6.f4 Qd5 7.Nf2 h5 8.Nf3 
Nf5 9.Bd3 Be7 10.O-O Bf6 11.Qe2 Nce7 12.Ne4 Bd7 13.Nc5 Nd6 14.Nxd7 Kxd7 
15.Ne5+ Kc8 16.c4 Qa5 17.Nxf7 Nxf7 18.Qxe6+ Kd8 19.Qxf7 Bxd4+ 20.Kh1 Kd7 
21.f5 Qe5 22.Bf4 Qf6 23.Qxf6 Bxf6 24.Be4 Kc8 25.Rad1 a5 26.Rd3 Rd8 27.
Rxd8+ Kxd8 28.b3 Kc8 29.g3 a4 30.b4 a3 31.b5 Ra4 32.Bd3 c6 33.Rb1 cxb5 34.
Rxb5 Nc6 35.Kg2 Na5 36.Bd2 Nc6 37.Kh3 Ne5 38.Be2 h4 39.g4 Nf7 40.Kg2 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.16"]
[Round "17"]
[White "Sax, Gyula"]
[Black "Garcia Gonzales, Guillermo"]
[Result "0-1"]
[WhiteElo "2590"]
[BlackElo "2490"]
[ECO "B12"]
[EventDate "1979.09.23"]
[PlyCount "88"]

1.e4 c6 2.d4 d5 3.Nd2 g6 4.h3 Bg7 5.Ngf3 Nh6 6.Bd3 f6 7.O-O O-O 8.Re1 Nf7 
9.c4 Na6 10.Bf1 Nc7 11.b3 dxe4 12.Nxe4 f5 13.Neg5 c5 14.Nxf7 Rxf7 15.Ne5 
Bxe5 16.Rxe5 Qxd4 17.Qxd4 cxd4 18.Bb2 Ne6 19.c5 Nd8 20.Bc4 e6 21.Rd1 Nc6 
22.Re2 Kf8 23.Red2 Rc7 24.Bxd4 Nxd4 25.Rxd4 Rxc5 26.Rd8+ Ke7 27.Rh8 b5 28.
Rxh7+ Kf6 29.Be2 a5 30.Rd8 Bb7 31.Rdd7 Bc6 32.Rc7 Rc1+ 33.Kh2 Re1 34.Bd3 
Be8 35.Rh8 Bc6 36.Rhh7 Be8 37.f4 e5 38.Rce7 Re3 39.fxe5+ Rxe5 40.Rb7 Rd8 
41.Rb6+ Kg5 42.Bf1 Rd1 43.Kg3 f4+ 44.Kf2 Rd2+ 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.16"]
[Round "17"]
[White "Smejkal, Jan"]
[Black "Sunye Neto, Jaime"]
[Result "0-1"]
[WhiteElo "2550"]
[BlackElo "2375"]
[ECO "D11"]
[EventDate "1979.09.23"]
[PlyCount "108"]

1.c4 Nf6 2.g3 c6 3.Nf3 d5 4.b3 Bg4 5.Bg2 e6 6.Bb2 Nbd7 7.O-O Be7 8.d4 O-O 
9.Nbd2 b5 10.Ne5 Nxe5 11.dxe5 Nd7 12.cxb5 cxb5 13.h3 Bh5 14.g4 Bg6 15.f4 
f5 16.Nf3 fxg4 17.Nd4 Bc5 18.hxg4 Qh4 19.e3 Be4 20.Bxe4 dxe4 21.Kg2 Nxe5 
22.Rh1 Qxg4+ 23.Qxg4 Nxg4 24.Nxe6 Nxe3+ 25.Kg3 Nf5+ 26.Kg4 Bf2 27.Nxf8 
Rxf8 28.Kh3 Ne3 29.Bd4 Rxf4 30.Bxe3 Bxe3 31.Rhf1 Bf2 32.Rac1 e3 33.Kg2 h5 
34.Rc2 h4 35.Rd1 Rg4+ 36.Kf3 Rg3+ 37.Kf4 Kh7 38.Rd5 Rg6 39.Rh5+ Rh6 40.
Rxh6+ Kxh6 41.Kg4 Kg6 42.a4 bxa4 43.bxa4 Kf6 44.a5 Ke6 45.a6 Kd5 46.Kf3 h3
47.Rc8 Ke6 48.Ra8 Kf6 49.Rf8+ Kg5 50.Rh8 Bh4 51.Re8 h2 52.Kg2 Kf4 53.Kxh2 
Kf3 54.Rf8+ Bf6 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.17"]
[Round "18"]
[White "Balashov, Yury"]
[Black "Ivkov, Borislav"]
[Result "1/2-1/2"]
[WhiteElo "2600"]
[BlackElo "2525"]
[ECO "C97"]
[EventDate "1979.09.23"]
[PlyCount "41"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 
9.h3 Na5 10.Bc2 c5 11.d4 Qc7 12.Nbd2 Re8 13.b3 Bf8 14.Nf1 g6 15.Ng3 Bg7 
16.d5 Nb7 17.a4 Bd7 18.axb5 axb5 19.Be3 Ra5 20.Qc1 Rea8 21.Qb2 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.17"]
[Round "18"]
[White "Petrosian, Tigran"]
[Black "Huebner, Robert"]
[Result "1/2-1/2"]
[WhiteElo "2610"]
[BlackElo "2595"]
[ECO "D54"]
[EventDate "1979.09.23"]
[PlyCount "50"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Rc1 h6 7.Bh4 b6 8.Bxf6 Bxf6
9.cxd5 exd5 10.Qf3 Bb7 11.Bc4 c6 12.Bb3 Na6 13.Nge2 Nc7 14.O-O Ne6 15.Rfd1
Re8 16.Nf4 Nxf4 17.Qxf4 Rc8 18.Rc2 Bg5 19.Qf3 Re7 20.h3 Rd7 21.Rcd2 g6 22.
a3 Kg7 23.Ba4 a5 24.g3 h5 25.h4 Bf6 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.17"]
[Round "18"]
[White "Portisch, Lajos"]
[Black "Kagan, Shimon"]
[Result "0-1"]
[WhiteElo "2640"]
[BlackElo "2445"]
[ECO "A42"]
[EventDate "1979.09.23"]
[PlyCount "84"]

1.Nf3 d6 2.d4 g6 3.c4 Bg7 4.Nc3 Nd7 5.e4 e5 6.Be2 Ne7 7.dxe5 dxe5 8.b3 O-O
9.O-O b6 10.Ba3 Re8 11.h4 Bb7 12.Ng5 h6 13.Nf3 Nc6 14.h5 g5 15.Nh2 Nd4 16.
Ng4 Nf6 17.Nxf6+ Qxf6 18.Bg4 Bf8 19.Bb2 c6 20.Ne2 Rad8 21.Nxd4 exd4 22.Qd3
c5 23.Rae1 Bd6 24.g3 Re7 25.Re2 Rde8 26.Rfe1 a6 27.Bf5 Qg7 28.Kh2 Bc8 29.
Bxc8 Rxc8 30.Bc1 Re5 31.Kg2 Rce8 32.Bd2 g4 33.Bf4 R5e6 34.Qd2 Be5 35.Qd3 
Qf6 36.Bd2 Qg7 37.Rh1 Rf6 38.b4 Rf3 39.Qb1 d3 40.Ree1 Bd4 41.Rhf1 Qe5 42.
Be3 Bxe3 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.17"]
[Round "18"]
[White "Hebert, Jean"]
[Black "Shamkovich, Leonid"]
[Result "1/2-1/2"]
[WhiteElo "2365"]
[BlackElo "2495"]
[ECO "B07"]
[EventDate "1979.09.23"]
[PlyCount "88"]

1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.Be3 Nf6 5.f3 c6 6.Qd2 Qa5 7.h4 b5 8.h5 Nxh5 9.
Nge2 Nd7 10.g4 Nhf6 11.g5 Nh5 12.f4 Nb6 13.b3 Bg4 14.Rh4 f5 15.exf5 Bxf5 
16.Bg2 Rc8 17.Ne4 Qxd2+ 18.Kxd2 Nd5 19.Rah1 O-O 20.N4g3 Nxg3 21.Nxg3 Be6 
22.Ne2 Nxe3 23.Kxe3 Bd5 24.Bxd5+ cxd5 25.Kd3 b4 26.c3 bxc3 27.Nxc3 e6 28.
Re1 Rfe8 29.Rh2 Rb8 30.Rc2 Rb4 31.Ne2 e5 32.fxe5 dxe5 33.dxe5 Re4 34.Rg1 
R4xe5 35.Rg3 Re4 36.Rd2 d4 37.b4 a6 38.a4 R4e6 39.Nf4 Re3+ 40.Rxe3 Rxe3+ 
41.Kc4 Ra3 42.a5 Rc3+ 43.Kd5 Rb3 44.Kc4 Rc3+ 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.17"]
[Round "18"]
[White "Garcia Gonzales, Guillermo"]
[Black "Vaganian, Rafael"]
[Result "1-0"]
[WhiteElo "2490"]
[BlackElo "2570"]
[ECO "A21"]
[EventDate "1979.09.23"]
[PlyCount "55"]

1.c4 e5 2.Nc3 d6 3.e3 g6 4.d4 Nd7 5.Nf3 Ngf6 6.Be2 Bg7 7.O-O O-O 8.b3 Re8 
9.Qc2 e4 10.Nd2 Qe7 11.Ba3 c6 12.Rae1 c5 13.f3 exf3 14.Bxf3 Nf8 15.dxc5 
dxc5 16.Nd5 Nxd5 17.cxd5 Bf5 18.e4 Bd4+ 19.Kh1 Rac8 20.Rd1 Bd7 21.Nc4 Bg7 
22.e5 Bb5 23.Rfe1 Bxc4 24.Qxc4 Bxe5 25.d6 Qf6 26.Bxb7 Bxd6 27.Rf1 Qe7 28.
Bxc8 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.17"]
[Round "18"]
[White "Harandi, Khosro"]
[Black "Smejkal, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2410"]
[BlackElo "2550"]
[ECO "B70"]
[EventDate "1979.09.23"]
[PlyCount "149"]

1.e4 g6 2.d4 Bg7 3.Nf3 d6 4.Be2 c5 5.O-O cxd4 6.Nxd4 Nf6 7.Nc3 Nc6 8.Nb3 
O-O 9.Bg5 Be6 10.Qd2 Ne5 11.Rad1 Rc8 12.Rfe1 Bc4 13.h3 Bxe2 14.Qxe2 Nc4 
15.Bc1 Qb6 16.Rd4 Qc6 17.Rdd1 Qb6 18.Rd4 Qc6 19.Rdd1 Qa6 20.Nd4 Qa5 21.Nb3
Qa6 22.Nd4 Qa5 23.Nb3 Qc7 24.Nd4 a6 25.b3 Nb6 26.Bb2 e5 27.Nf3 Rfd8 28.Nh2
Nbd7 29.Nf1 b5 30.Ne3 Nb6 31.a3 Qb7 32.Qf3 Rc6 33.Rd3 Rdc8 34.Red1 Ne8 35.
Ncd5 Nxd5 36.Rxd5 Bh6 37.Bxe5 Bxe3 38.fxe3 Qe7 39.Bd4 Rxc2 40.e5 dxe5 41.
Rxe5 Qd6 42.Rf1 f6 43.h4 Qc6 44.Re7 Qxf3 45.Rxf3 Rc1+ 46.Rf1 Ng7 47.g4 
Rxf1+ 48.Kxf1 Rc6 49.Ke2 h5 50.gxh5 Nf5 51.Ra7 gxh5 52.Kf3 Re6 53.Kf4 Nxh4
54.e4 Rd6 55.Bf2 Ng6+ 56.Kf5 Ne5 57.Bh4 Nd7 58.Kg6 Kf8 59.Be1 Ne5+ 60.Kf5 
Nc6 61.Rh7 Nd4+ 62.Kf4 Ne6+ 63.Ke3 Rd1 64.Bb4+ Kg8 65.Rxh5 Rb1 66.e5 a5 
67.Bd6 Ng7 68.Rh2 fxe5 69.Bxe5 Rxb3+ 70.Ke4 Ne6 71.Kf5 Ng7+ 72.Kg6 Re3 73.
Bxg7 Rg3+ 74.Kf6 Rxg7 75.Rb2 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.17"]
[Round "18"]
[White "Sunye Neto, Jaime"]
[Black "Sax, Gyula"]
[Result "0-1"]
[WhiteElo "2375"]
[BlackElo "2590"]
[ECO "A27"]
[EventDate "1979.09.23"]
[PlyCount "82"]

1.c4 e5 2.Nc3 Nc6 3.Nf3 f5 4.d4 e4 5.Bg5 Be7 6.Bxe7 Ncxe7 7.Nd2 Nf6 8.e3 
O-O 9.Be2 c6 10.O-O d5 11.Qb3 Kh8 12.f4 exf3 13.Nxf3 Ng4 14.Nd1 dxc4 15.
Bxc4 b5 16.Be2 Qd6 17.Nf2 Be6 18.Qd3 Nf6 19.a4 Ned5 20.Qd2 a6 21.Ne5 Nb6 
22.a5 Nbd7 23.Nxd7 Nxd7 24.b4 c5 25.bxc5 Nxc5 26.Qb4 Ne4 27.Qb2 Nf6 28.Nd3
Nd5 29.Qd2 b4 30.Nc5 Nc3 31.Bd3 Rac8 32.Rac1 Bc4 33.Bxc4 Rxc5 34.Qd3 Rxa5 
35.Ra1 Rxa1 36.Rxa1 f4 37.Rxa6 Qb8 38.Bb3 Re8 39.exf4 Ne2+ 40.Kh1 Nc1 41.
Qd1 Nxb3 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.17"]
[Round "18"]
[White "Velimirovic, Dragoljub"]
[Black "Bronstein, Luis Marcos"]
[Result "1-0"]
[WhiteElo "2515"]
[BlackElo "2420"]
[ECO "C06"]
[EventDate "1979.09.23"]
[PlyCount "113"]

1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.Bd3 c5 6.c3 Nc6 7.Ne2 cxd4 8.cxd4 f6
9.exf6 Nxf6 10.Nf3 Bd6 11.O-O Qc7 12.Nc3 a6 13.Bg5 O-O 14.Bh4 g6 15.Bg3 
Bxg3 16.hxg3 Qg7 17.Qd2 Bd7 18.Rfe1 Ng4 19.Bc2 Rxf3 20.gxf3 Nxd4 21.Bd1 
Ne5 22.Kg2 Nc4 23.Qg5 Bc6 24.b3 Nd6 25.Qe5 Qxe5 26.Rxe5 Nf7 27.Re3 e5 28.
Rd3 Rd8 29.Rc1 Ne6 30.b4 d4 31.Ne4 Neg5 32.Nd2 Kg7 33.Ra3 Rd6 34.Bc2 Rf6 
35.Be4 Nxe4 36.fxe4 g5 37.Ra5 g4 38.a4 Re6 39.b5 axb5 40.axb5 Be8 41.Rc7 
b6 42.Raa7 Kf6 43.f4 gxf3+ 44.Nxf3 Nd6 45.Rxh7 Nxb5 46.Rh6+ Bg6 47.Rb7 Nd6
48.Rxb6 Kg7 49.Rh4 Rf6 50.Nxe5 Bxe4+ 51.Kg1 d3 52.Rg4+ Kh7 53.Nxd3 Rh6 54.
Nf2 Bf3 55.Rf4 Be2 56.Ne4 Nxe4 57.Rxh6+ 1-0

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.20"]
[Round "19"]
[White "Smejkal, Jan"]
[Black "Balashov, Yury"]
[Result "1/2-1/2"]
[WhiteElo "2550"]
[BlackElo "2600"]
[ECO "A29"]
[EventDate "1979.09.23"]
[PlyCount "86"]

1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.g3 Bc5 5.Bg2 d6 6.O-O O-O 7.a3 a6 8.e3 Ba7 
9.d4 Bg4 10.d5 Ne7 11.h3 Bd7 12.b4 h6 13.Bb2 Nh7 14.Rc1 Ng6 15.Kh2 f5 16.
c5 Ng5 17.Nxg5 Qxg5 18.c6 Bc8 19.f4 Qe7 20.Re1 Qf7 21.Qd2 Kh7 22.Ne2 Re8 
23.fxe5 dxe5 24.e4 f4 25.gxf4 bxc6 26.f5 Nh4 27.Rxc6 Bb7 28.Rc2 Nxg2 29.
Kxg2 Rad8 30.Qc1 Rxd5 31.Ng3 Rd7 32.Rd1 Bd4 33.Rcd2 h5 34.h4 Qf6 35.Re2 
Bxb2 36.Rxb2 Rxd1 37.Qxd1 Qxh4 38.Qf3 Rd8 39.Re2 Rd4 40.f6 gxf6 41.Qf5+ 
Kg7 42.Nxh5+ Kh8 43.Qxf6+ Qxf6 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.20"]
[Round "19"]
[White "Ivkov, Borislav"]
[Black "Petrosian, Tigran"]
[Result "0-1"]
[WhiteElo "2525"]
[BlackElo "2610"]
[ECO "E81"]
[EventDate "1979.09.23"]
[PlyCount "84"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c6 7.Qd2 a6 8.a4 e5 9.
dxe5 dxe5 10.Qxd8 Rxd8 11.a5 Be6 12.Na4 Nbd7 13.b4 Bf8 14.c5 Ne8 15.Nb6 
Nxb6 16.axb6 Nf6 17.Nh3 a5 18.Rxa5 Rxa5 19.bxa5 Nd7 20.Ng5 Bb3 21.Kd2 h6 
22.Kc3 Ba2 23.Kb2 Ra8 24.a6 hxg5 25.axb7 Rb8 26.Kxa2 Bxc5 27.Bxc5 Nxc5 28.
Be2 Rxb7 29.Rc1 Nd7 30.Rxc6 Nxb6 31.Ba6 Rb8 32.Kb1 Nd5+ 33.Kc1 Nf4 34.g3 
Ne6 35.Bc4 Nd4 36.Rc7 Rf8 37.f4 gxf4 38.gxf4 exf4 39.Kd2 Nf3+ 40.Ke2 Ne5 
41.Rc5 Re8 42.Bb5 Re7 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.20"]
[Round "19"]
[White "Shamkovich, Leonid"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[WhiteElo "2495"]
[BlackElo "2640"]
[ECO "C95"]
[EventDate "1979.09.23"]
[PlyCount "32"]

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.Nf1 Bf8 14.Ng3 g6 15.a4 c5 
16.d5 Nb6 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.20"]
[Round "19"]
[White "Timman, Jan"]
[Black "Garcia Gonzales, Guillermo"]
[Result "1/2-1/2"]
[WhiteElo "2625"]
[BlackElo "2490"]
[ECO "A77"]
[EventDate "1979.09.23"]
[PlyCount "133"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 g6 6.e4 d6 7.Nf3 Bg7 8.Be2 O-O 
9.O-O Re8 10.Nd2 a6 11.a4 Nbd7 12.Qc2 Rb8 13.Ra3 b6 14.Kh1 Ne5 15.b3 Rf8 
16.Bb2 Nh5 17.Bxh5 gxh5 18.Nd1 f5 19.f4 Ng4 20.Bxg7 Kxg7 21.Qc3+ Kg8 22.
Ra1 Rb7 23.Ne3 Nxe3 24.Qxe3 Rg7 25.Rae1 h4 26.h3 Bb7 27.Qd3 Qa8 28.Rd1 
fxe4 29.Nxe4 Rf5 30.Nc3 Qf8 31.Rde1 Rgf7 32.Re6 Rxf4 33.Rxf4 Rxf4 34.Qe3 
Rf1+ 35.Kh2 Qf4+ 36.Qxf4 Rxf4 37.Rxd6 Kf8 38.Rxb6 Rb4 39.a5 Ke7 40.Kg1 Kd8
41.Na4 Rxb6 42.axb6 Bxd5 43.Nxc5 a5 44.Kf1 Kc8 45.Kf2 Kb8 46.g3 hxg3+ 47.
Kxg3 Bxb3 48.Nxb3 a4 49.Nc1 Kb7 50.Kf4 Kxb6 51.Ke5 a3 52.Kd6 Kb5 53.Kd5 
Kb6 54.h4 Kc7 55.Na2 Kd7 56.h5 Ke7 57.Ke5 Kf7 58.Kf5 Kg7 59.Kg5 Kf7 60.Kh6
Kg8 61.Nc3 Kh8 62.Kg5 Kg7 63.h6+ Kf7 64.Kf5 Ke7 65.Na2 Kf7 66.Nb4 Ke7 67.
Nc2 1/2-1/2

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.20"]
[Round "19"]
[White "Vaganian, Rafael"]
[Black "Sunye Neto, Jaime"]
[Result "0-1"]
[WhiteElo "2570"]
[BlackElo "2375"]
[ECO "E12"]
[EventDate "1979.09.23"]
[PlyCount "134"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 d5 5.cxd5 exd5 6.Nc3 Be7 7.g3 O-O 8.Bg2 Bb7
9.O-O c5 10.Ne5 Nc6 11.Nxc6 Bxc6 12.dxc5 bxc5 13.Bg5 Rb8 14.Rb1 h6 15.Bxf6
Bxf6 16.Qc2 Qd6 17.Rfd1 Bxc3 18.bxc3 Rxb1 19.Qxb1 Rb8 20.Qd3 Qe5 21.Qa6 
Bb5 22.Qxa7 Bxe2 23.Re1 d4 24.cxd4 cxd4 25.Bf1 d3 26.f4 Qe8 27.Bxe2 Rb2 
28.Qf2 Rxe2 29.Rxe2 dxe2 30.Qe1 Qe3+ 31.Kg2 g5 32.a4 gxf4 33.gxf4 Qxf4 34.
Qxe2 Qxa4 35.Qe5 Qg4+ 36.Kf2 Kh7 37.Qb8 Qf5+ 38.Kg3 Kg7 39.Kg2 Kg6 40.Qd6+
Kh5 41.Qc7 Qd5+ 42.Kf2 f6 43.Qc3 Qf5+ 44.Kg2 Qg5+ 45.Kf2 Kh4 46.Qf3 Qe5 
47.Kg2 Kg5 48.Qb3 Qe2+ 49.Kg3 Qg4+ 50.Kf2 Kh4 51.Qc3 Qf4+ 52.Kg2 Qg5+ 53.
Kf2 Qe5 54.Qc4+ Kh5 55.Kf3 f5 56.Qf4 Qc3+ 57.Kg2 Qc2+ 58.Kg3 Qd3+ 59.Qf3+ 
Qxf3+ 60.Kxf3 Kg5 61.Kg3 h5 62.Kf3 h4 63.Kg2 Kg4 64.Kf2 Kf4 65.Ke2 Ke4 66.
Kf2 Kd3 67.Kf3 h3 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.20"]
[Round "19"]
[White "Kagan, Shimon"]
[Black "Velimirovic, Dragoljub"]
[Result "0-1"]
[WhiteElo "2445"]
[BlackElo "2515"]
[ECO "B34"]
[EventDate "1979.09.23"]
[PlyCount "166"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Nde2 Nf6 7.g3 d6 8.Bg2 
Bd7 9.h3 Qc8 10.Be3 O-O 11.Qd2 b5 12.Rc1 Qa6 13.b3 b4 14.Nd5 Qxa2 15.Nxb4 
Nxb4 16.Qxb4 Qa6 17.Qd2 Qc8 18.c4 Bc6 19.f3 a5 20.O-O Nd7 21.Nd4 Nc5 22.
Rb1 Bd7 23.Kh2 Qc7 24.Bh6 Bxh6 25.Qxh6 Rab8 26.f4 f6 27.e5 dxe5 28.fxe5 
fxe5 29.Nf3 Bf5 30.Rbe1 e4 31.Ng5 e6 32.Kh1 Qg7 33.Qxg7+ Kxg7 34.g4 h6 35.
gxf5 exf5 36.Nxe4 fxe4 37.Rxf8 Rxf8 38.Kg1 Rb8 39.Ra1 e3 40.Bf1 Nxb3 41.
Ra3 Kf6 42.c5 Nxc5 43.Rxa5 Rb1 44.Kg2 Rb2+ 45.Kf3 Rf2+ 46.Kxe3 Rxf1 47.
Rxc5 Rh1 48.Kf4 Rxh3 49.Rc6+ Kf7 50.Rc7+ Kf8 51.Rc6 g5+ 52.Kg4 Rh4+ 53.Kf5
Ke7 54.Rc7+ Kd6 55.Rg7 Kc5 56.Rc7+ Kd4 57.Ra7 Rh1 58.Re7 Rf1+ 59.Kg6 Rh1 
60.Kf5 Kd3 61.Kg4 Rh4+ 62.Kg3 Re4 63.Rh7 Re6 64.Kg4 Ke4 65.Ra7 Ke5 66.Kh5 
Rf6 67.Ra1 Ke6 68.Ra6+ Ke5 69.Ra1 Rd6 70.Ra5+ Rd5 71.Ra1 Kf4 72.Ra4+ Kf3 
73.Ra3+ Ke4 74.Ra1 Rd6 75.Ra4+ Rd4 76.Ra1 Kf5 77.Ra5+ Kf4 78.Ra1 Re4 79.
Rg1 Kf3 80.Kxh6 g4 81.Kh5 g3 82.Rf1+ Ke2 83.Ra1 g2 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.20"]
[Round "19"]
[White "Sax, Gyula"]
[Black "Harandi, Khosro"]
[Result "0-1"]
[WhiteElo "2590"]
[BlackElo "2410"]
[ECO "C78"]
[EventDate "1979.09.23"]
[PlyCount "94"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O b5 6.Bb3 Bb7 7.Re1 Bc5 8.c3 d6 
9.d4 Bb6 10.Bg5 h6 11.Bh4 Qe7 12.a4 O-O-O 13.Qd3 g5 14.Bg3 exd4 15.axb5 
axb5 16.Qxb5 Na7 17.Qf5+ Kb8 18.e5 Nh5 19.cxd4 Nxg3 20.hxg3 dxe5 21.Nc3 
Qb4 22.Bxf7 exd4 23.Nd5 Qb5 24.Re5 d3 25.Nxb6 Qxb6 26.Rea5 Nc8 27.Ne5 d2 
28.Nd7+ Rxd7 29.Qxd7 Rf8 30.R5a3 Nd6 31.Rb3 Qd4 32.Rd1 Qe4 33.Kf1 Qxg2+ 
34.Ke2 Rxf7 35.Qd8+ Nc8 36.Rxd2 Rxf2+ 37.Kd1 Qf1+ 38.Kc2 Qc4+ 39.Rc3 Qa4+ 
40.Rb3 Qe4+ 41.Kc1 Rf1+ 42.Rd1 Qc4+ 43.Rc3 Rxd1+ 44.Qxd1 Qd5 45.Rd3 Qe5 
46.Rb3 Nd6 47.Qf3 Qe1+ 0-1

[Event "Interzonal"]
[Site "Rio de Janeiro BRA"]
[Date "1979.10.20"]
[Round "19"]
[White "Torre, Eugenio"]
[Black "Hebert, Jean"]
[Result "1-0"]
[WhiteElo "2520"]
[BlackElo "2365"]
[ECO "B83"]
[EventDate "1979.09.23"]
[PlyCount "125"]

1.e4 c5 2.Nc3 e6 3.Nf3 d6 4.d4 cxd4 5.Nxd4 Nf6 6.Be2 Na6 7.Be3 Nc5 8.f3 a6
9.a4 b6 10.O-O Bb7 11.Qd2 Be7 12.b4 Ncd7 13.b5 a5 14.Nc6 Qc7 15.Rfd1 Rc8 
16.Ra3 Ne5 17.Nxe7 Kxe7 18.Nb1 Ned7 19.Rc3 Nc5 20.Bxc5 dxc5 21.Rd3 h6 22.
Na3 g5 23.Nc4 Rb8 24.Rd6 Ba8 25.Ne5 Bd5 26.exd5 Qxd6 27.Nc6+ Kf8 28.Nxb8 
Qxb8 29.dxe6 fxe6 30.Qd6+ Qxd6 31.Rxd6 Nd5 32.Rxe6 Nf4 33.Re4 Nxe2+ 34.
Rxe2 Kf7 35.Rd2 Ke6 36.Kf2 Rf8 37.g3 Rg8 38.Ke3 Rf8 39.c4 Rg8 40.Rd5 Rf8 
41.Ke4 Rg8 42.h3 Ke7 43.f4 gxf4 44.gxf4 Rg1 45.Rh5 Rd1 46.Rxh6 Rd4+ 47.Ke5
Rxc4 48.Rxb6 Rxa4 49.f5 Ra3 50.f6+ Ke8 51.Rb8+ Kf7 52.Rb7+ Kf8 53.Rc7 Rb3 
54.Ke6 Re3+ 55.Kd5 Rb3 56.Kxc5 a4 57.Ra7 a3 58.b6 Kg8 59.b7 a2 60.Kc6 Rc3+
61.Kd7 Rb3 62.Kc7 Rc3+ 63.Kb8 1-0

