[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.23"]
[Round "1"]
[White "Speelman, Jonathan Simon"]
[Black "Kovacevic, Vlatko"]
[Result "1-0"]
[WhiteElo "2490"]
[BlackElo "2510"]
[ECO "E11"]
[EventDate "1980.10.23"]
[PlyCount "73"]
[Source "Perpetual Check"]

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Nf3 Bb4+ 5.Bd2 Be7 6.Bg2 O-O 7.O-O Nbd7 8.Qc2 
c6 9.Rd1 b5 10.c5 a5 11.Be1 Ne4 12.Nbd2 f5 13.Nb3 Qc7 14.Nc1 e5 15.Nd3 Bf6
16.dxe5 Nxe5 17.Nfxe5 Bxe5 18.f3 Nf6 19.Qd2 Nd7 20.Bf2 f4 21.gxf4 Bxf4 22.
Nxf4 Qxf4 23.Qxf4 Rxf4 24.e4 Bb7 25.Rac1 Ne5 26.Bg3 Nxf3+ 27.Kh1 Rf6 28.
exd5 cxd5 29.c6 Ba6 30.Rxd5 Raf8 31.c7 Bb7 32.Rd8 Bc8 33.Rf1 Bb7 34.Bxf3 
Rxf3 35.Rxf3 Bxf3+ 36.Kg1 Bg4 37.Bd6 1-0

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.23"]
[Round "1"]
[White "Rakic, Tomislav"]
[Black "Knezevic, Milorad"]
[Result "1/2-1/2"]
[WhiteElo "2455"]
[BlackElo "2490"]
[ECO "B05"]
[EventDate "1980.10.23"]
[PlyCount "52"]
[Source "Perpetual Check"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Bg4 5.Be2 c6 6.O-O Bxf3 7.Bxf3 dxe5 8.dxe5
e6 9.Qe2 Nd7 10.c4 Ne7 11.Bg4 Qc7 12.f4 h5 13.Bh3 Nf5 14.Bxf5 exf5 15.Be3 
Bc5 16.Kh1 Qb6 17.Bxc5 Nxc5 18.Nc3 O-O-O 19.Rab1 Ne6 20.Qc2 Nd4 21.Qa4 Ne6
22.Qc2 Nd4 23.Qa4 Rd7 24.b4 Qa6 25.Qxa6 bxa6 26.Rbc1 Rhd8 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.23"]
[Round "1"]
[White "Nikolac, Juraj"]
[Black "Kuligowski, Adam"]
[Result "1-0"]
[WhiteElo "2480"]
[BlackElo "2405"]
[ECO "A14"]
[EventDate "1980.10.23"]
[PlyCount "137"]
[Source "Perpetual Check"]

1.b3 Nf6 2.Bb2 b6 3.Nf3 e6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.c4 c5 8.Nc3 d5 
9.cxd5 Nxd5 10.Qc2 Nc6 11.Nxd5 Qxd5 12.Rac1 Rac8 13.Qb1 Nd4 14.Bxd4 cxd4 
15.Rxc8 Rxc8 16.Rc1 Rc5 17.Ne1 Qd7 18.Nd3 Rxc1+ 19.Qxc1 Bxg2 20.Kxg2 b5 
21.f3 f6 22.Qc2 Kf7 23.a4 Bd6 24.Kf2 a6 25.axb5 axb5 26.f4 g6 27.Ne1 Qb7 
28.Nf3 Qd5 29.Qd3 e5 30.fxe5 Bxe5 31.Qc2 Kg7 32.Ke1 h5 33.Qd3 f5 34.Kf2 
Bf6 35.h4 Be5 36.Kg2 Qd6 37.Qxb5 Bxg3 38.Qb7+ Kf6 39.Qh7 Bf4 40.Qh8+ Kf7 
41.d3 Qe6 42.Kf1 Qxb3 43.Qxd4 Qb1+ 44.Kg2 Qc1 45.Qd7+ Kf6 46.Qe8 Qc5 47.d4
Qe7 48.Qc6+ Qe6 49.Qc3 Ke7 50.Qa3+ Qd6 51.Qb3 Qb8 52.Qa2 Qb6 53.e3 Bc7 54.
Ng5 Qf6 55.Qd5 Bb6 56.Qb7+ Ke8 57.Kf3 Bd8 58.Qd5 Bc7 59.Ne6 Bh2 60.Qa8+ 
Kf7 61.Ng5+ Ke7 62.Qb7+ Ke8 63.d5 Qa1 64.Qf7+ Kd8 65.Ne6+ Kc8 66.Qe8+ Kb7 
67.Nc5+ Ka7 68.Qd7+ Kb6 69.Qc6+ 1-0

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.23"]
[Round "1"]
[White "Musil, Vojko"]
[Black "Danner, Georg"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2345"]
[ECO "B52"]
[EventDate "1980.10.23"]
[PlyCount "29"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.c4 Nc6 6.O-O Nf6 7.Nc3 g6 8.Re1
Bg7 9.h3 O-O 10.d3 Rab8 11.Bg5 h6 12.Be3 Rfc8 13.Rc1 Kh7 14.b3 Qd8 15.d4 
1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.23"]
[Round "1"]
[White "Plachetka, Jan"]
[Black "Velimirovic, Dragoljub"]
[Result "1/2-1/2"]
[WhiteElo "2480"]
[BlackElo "2515"]
[ECO "A77"]
[EventDate "1980.10.23"]
[PlyCount "112"]
[Source "Perpetual Check"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O 
9.O-O Re8 10.Nd2 Nbd7 11.h3 a6 12.a4 Rb8 13.a5 Qc7 14.Qc2 b5 15.axb6 Nxb6 
16.Re1 Nfd7 17.b3 c4 18.bxc4 Ne5 19.Rb1 Bd7 20.Ba3 Nexc4 21.Nxc4 Nxc4 22.
Na4 Bxa4 23.Qxc4 Qxc4 24.Bxc4 Rxb1 25.Rxb1 Rxe4 26.Bxd6 Bb5 27.Bxb5 axb5 
28.Rxb5 Re1+ 29.Kh2 Be5+ 30.Bxe5 Rxe5 31.Kg3 Kg7 32.Kf4 Re2 33.g4 h6 34.d6
Kf6 35.Rd5 Re8 36.d7 g5+ 37.Kf3 Rd8 38.Ke4 Ke6 39.f4 gxf4 40.Rh5 Rxd7 41.
Rxh6+ Ke7 42.Kxf4 Rd3 43.Kg5 Ra3 44.Rh8 Rf3 45.h4 f5 46.gxf5 Rg3+ 47.Kf4 
Rg1 48.h5 Rf1+ 49.Kg4 Rg1+ 50.Kh3 Kf6 51.h6 Rh1+ 52.Kg4 Rg1+ 53.Kf3 Rh1 
54.h7 Kg7 55.Rg8+ Kxh7 56.Rg4 Ra1 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.23"]
[Round "1"]
[White "Polajzer, Danilo"]
[Black "Osterman, Rudolf"]
[Result "1/2-1/2"]
[WhiteElo "2215"]
[BlackElo "2335"]
[ECO "C78"]
[EventDate "1980.10.23"]
[PlyCount "46"]
[Source "Perpetual Check"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O b5 6.Bb3 Bb7 7.Re1 Bc5 8.c3 O-O
9.d4 Bb6 10.Bg5 h6 11.Bh4 d6 12.a4 exd4 13.axb5 axb5 14.Rxa8 Bxa8 15.cxd4 
Re8 16.d5 Ne5 17.Nxe5 Rxe5 18.Qd3 c6 19.Bg3 Re8 20.dxc6 Bxc6 21.Nc3 Qa8 
22.Qxd6 Nxe4 23.Nxe4 Rxe4 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.23"]
[Round "1"]
[White "Supancic, Darko"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2335"]
[BlackElo "2520"]
[ECO "A48"]
[EventDate "1980.10.23"]
[PlyCount "35"]
[Source "Perpetual Check"]

1.d4 Nf6 2.Nf3 g6 3.Bf4 Bg7 4.e3 O-O 5.h3 d6 6.Be2 Nbd7 7.c4 e5 8.Bh2 exd4
9.Nxd4 d5 10.Nc3 dxc4 11.Bxc4 a6 12.Be2 c5 13.Nb3 Re8 14.a4 Ne4 15.Nxe4 
Rxe4 16.O-O Qf6 17.Nd2 Rb4 18.Nc4 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.24"]
[Round "2"]
[White "Kovacevic, Vlatko"]
[Black "Ree, Hans"]
[Result "1-0"]
[WhiteElo "2510"]
[BlackElo "2520"]
[ECO "D02"]
[EventDate "1980.10.23"]
[PlyCount "45"]
[Source "Perpetual Check"]

1.d4 Nf6 2.Nf3 d5 3.Bf4 e6 4.Nbd2 c5 5.e3 Be7 6.c3 O-O 7.Bd3 Nbd7 8.h4 b6 
9.Ne5 Nxe5 10.dxe5 Nd7 11.Bxh7+ Kxh7 12.Qh5+ Kg8 13.Nf3 f6 14.Ng5 fxg5 15.
hxg5 Rf5 16.Qh7+ Kf7 17.g6+ Ke8 18.Qxg7 Bf8 19.Qh8 Rg5 20.Qg8 Nxe5 21.Bxe5
Kd7 22.Rh8 Bb7 23.Qh7+ 1-0

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.24"]
[Round "2"]
[White "Osterman, Rudolf"]
[Black "Supancic, Darko"]
[Result "1/2-1/2"]
[WhiteElo "2335"]
[BlackElo "2335"]
[ECO "A53"]
[EventDate "1980.10.23"]
[PlyCount "22"]
[Source "Perpetual Check"]

1.d4 Nf6 2.c4 d6 3.Nc3 e5 4.dxe5 dxe5 5.Qxd8+ Kxd8 6.Nf3 Nfd7 7.b3 f6 8.
Bb2 c6 9.e3 Kc7 10.Be2 a5 11.O-O Nc5 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.24"]
[Round "2"]
[White "Velimirovic, Dragoljub"]
[Black "Polajzer, Danilo"]
[Result "1/2-1/2"]
[WhiteElo "2515"]
[BlackElo "2215"]
[ECO "B97"]
[EventDate "1980.10.23"]
[PlyCount "128"]
[Source "Perpetual Check"]

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 Qxa2 16.Rd1 Be7 17.Bd3 O-O 18.O-O f5 19.Qh6 Rf7 20.Rf3 Kh8 21.Rh3 
Bd7 22.Kh1 Rg8 23.Nc3 Qa5 24.Bxf5 exf5 25.Rxd7 Qc5 26.Qd2 Qc4 27.Ne2 Bg5 
28.Rxf7 Qxf7 29.Qa5 Qd5 30.Qa1 Be3 31.Qf1 f4 32.Nc3 Qd2 33.Ne4 Qc1 34.Qxc1
Bxc1 35.Rc3 Rd8 36.h4 Rd4 37.Ng5 e4 38.Rxc6 Rd1+ 39.Kh2 e3 40.Re6 Kg7 41.
c4 Rd2 42.h5 Rd7 43.Rxa6 e2 44.h6+ Kf8 45.Rf6+ Kg8 46.Re6 Kf8 47.Rxe2 Be3 
48.Kh3 Rd6 49.g3 Rxh6+ 50.Kg4 Rc6 51.gxf4 Bxf4 52.Ne6+ Kg8 53.Re4 Bc1 54.
Kf5 Rc8 55.Rg4+ Kf7 56.Ke5 Bb2+ 57.Kd5 Bf6 58.c5 h5 59.Rf4 Re8 60.Re4 h4 
61.c6 h3 62.Re2 Bd8 63.Nxd8+ Rxd8+ 64.Kc5 Kg6 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.24"]
[Round "2"]
[White "Danner, Georg"]
[Black "Plachetka, Jan"]
[Result "0-1"]
[WhiteElo "2345"]
[BlackElo "2480"]
[ECO "D87"]
[EventDate "1980.10.23"]
[PlyCount "118"]
[Source "Perpetual Check"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2
c5 9.O-O Qc7 10.Bf4 e5 11.Bxe5 Bxe5 12.dxe5 Qxe5 13.Bd5 Nc6 14.Qd2 Rd8 15.
Rad1 Qe7 16.f4 Be6 17.c4 Bxd5 18.exd5 b6 19.f5 Na5 20.f6 Qf8 21.Qd3 Nb7 
22.Nc3 Nd6 23.Ne4 Re8 24.Rde1 Re5 25.Nxd6 Qxd6 26.Qd2 Rae8 27.Qh6 Qf8 28.
Rxe5 Rxe5 29.Qf4 Qd6 30.a4 h5 31.Qh6 Qf8 32.Qf4 Qd6 33.a5 Kh7 34.axb6 axb6
35.g3 b5 36.cxb5 Qxd5 37.b6 Re2 38.Rf2 Re4 39.Qd2 Rd4 40.Qe2 Rb4 41.Qf3 
Qxf3 42.Rxf3 Rxb6 43.h4 c4 44.Rc3 Rc6 45.Kg2 g5 46.hxg5 Kg6 47.Kf3 Kxg5 
48.Ke4 Kxf6 49.Kd5 Rc8 50.Kd6 Kg5 51.Kd7 Ra8 52.Rxc4 Ra3 53.Rc5+ f5 54.Ke6
Re3+ 55.Kd5 Rxg3 56.Kd4 h4 57.Rc8 h3 58.Rg8+ Kf4 59.Rh8 Kf3 0-1

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.24"]
[Round "2"]
[White "Kuligowski, Adam"]
[Black "Musil, Vojko"]
[Result "1-0"]
[WhiteElo "2405"]
[BlackElo "2400"]
[ECO "D58"]
[EventDate "1980.10.23"]
[PlyCount "87"]
[Source "Perpetual Check"]

1.Nf3 Nf6 2.d4 d5 3.c4 e6 4.Bg5 Be7 5.Nc3 h6 6.Bh4 O-O 7.e3 b6 8.Rc1 a5 9.
a3 Bb7 10.Bxf6 Bxf6 11.cxd5 exd5 12.b4 axb4 13.axb4 c6 14.Qb3 Qd6 15.Be2 
Be7 16.Rb1 Bc8 17.Ne5 Bf5 18.Nd3 Na6 19.b5 Nc7 20.bxc6 b5 21.Rc1 Ra3 22.
Qd1 Bxd3 23.Bxd3 Qb4 24.Qc2 Qa5 25.O-O b4 26.Nb1 Ra2 27.Qd1 Rb8 28.Bc2 Qb5
29.Bb3 Ra6 30.Nd2 Rbb6 31.Nf3 Rxc6 32.Ne5 Rc3 33.Rxc3 bxc3 34.Qc2 Bb4 35.
Rb1 Qa5 36.Qf5 Rf6 37.Qc8+ Kh7 38.h4 g6 39.h5 Kg7 40.hxg6 fxg6 41.Qd7+ Kf8
42.Qd8+ Kg7 43.Qd7+ Kf8 44.Bc2 1-0

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.24"]
[Round "2"]
[White "Knezevic, Milorad"]
[Black "Nikolac, Juraj"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2480"]
[ECO "E35"]
[EventDate "1980.10.23"]
[PlyCount "33"]
[Source "Perpetual Check"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 exd5 6.Bg5 h6 7.Bxf6 Qxf6 8.a3 
Bxc3+ 9.Qxc3 c6 10.e3 O-O 11.Nf3 Bf5 12.Ne5 Nd7 13.Nxd7 Bxd7 14.Be2 Bf5 
15.O-O Rfe8 16.Rfe1 Be4 17.Bf1 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.24"]
[Round "2"]
[White "Speelman, Jonathan Simon"]
[Black "Rakic, Tomislav"]
[Result "1-0"]
[WhiteElo "2490"]
[BlackElo "2455"]
[ECO "B56"]
[EventDate "1980.10.23"]
[PlyCount "71"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g3 h5 7.Bg5 Bg4 8.f3 Bd7
9.Qd2 Nxd4 10.Qxd4 Qa5 11.Bd2 e5 12.Qd3 Qc5 13.O-O-O a6 14.Kb1 Be6 15.Be3 
Qc7 16.f4 Rc8 17.Nd5 Qc6 18.Bg2 Nd7 19.Rd2 h4 20.Re1 hxg3 21.hxg3 Rh2 22.
Bg1 Rh8 23.Rc1 b5 24.Qa3 Bxd5 25.exd5 Qb7 26.Re1 f6 27.Be4 Nc5 28.Bf5 Rc7 
29.Bxc5 Rxc5 30.Be6 b4 31.Qd3 Kd8 32.fxe5 fxe5 33.Rf2 Qb5 34.Qg6 Qc4 35.
Rc1 Qd4 36.Rxf8+ 1-0

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.25"]
[Round "3"]
[White "Rakic, Tomislav"]
[Black "Kovacevic, Vlatko"]
[Result "0-1"]
[WhiteElo "2455"]
[BlackElo "2510"]
[ECO "D01"]
[EventDate "1980.10.23"]
[PlyCount "118"]
[Source "Perpetual Check"]

1.d4 Nf6 2.Nf3 g6 3.Bg5 Bg7 4.Nc3 d5 5.Bxf6 exf6 6.e3 O-O 7.Bd3 c6 8.O-O 
f5 9.Ne2 Be6 10.Nf4 Qe7 11.h4 Nd7 12.g3 Nf6 13.Kg2 Ne4 14.c3 Rad8 15.a4 
Rfe8 16.Qc2 Bh6 17.Rh1 Qd6 18.Ng1 Re7 19.Nge2 Rde8 20.b4 Nf6 21.Nc1 Bc8 
22.Be2 Ng4 23.Ncd3 b6 24.Bf3 Bb7 25.Qa2 Nf6 26.c4 dxc4 27.Qxc4 Ne4 28.Rad1
Bg7 29.Rhe1 Kf8 30.a5 h6 31.a6 Ba8 32.Bxe4 Rxe4 33.f3 R4e7 34.Kf2 Bh8 35.
Ne5 Bxe5 36.dxe5 Qxe5 37.Qd4 c5 38.bxc5 bxc5 39.Qxe5 Rxe5 40.Rd7 R5e7 41.
Rd6 Rc7 42.h5 g5 43.Ne2 Rce7 44.Nc3 Re6 45.Nb5 Bc6 46.Rxe6 Rxe6 47.Nxa7 
Bd7 48.Ra1 Ke7 49.Ra5 Rb6 50.Rxc5 Rxa6 51.Rc7 Ra2+ 52.Kf1 Kd6 53.Rb7 Be6 
54.Kg1 Kc5 55.Kf1 g4 56.f4 Bc4+ 57.Kg1 Rg2+ 58.Kh1 Rxg3 59.Rc7+ Kb4 0-1

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.25"]
[Round "3"]
[White "Nikolac, Juraj"]
[Black "Speelman, Jonathan Simon"]
[Result "1/2-1/2"]
[WhiteElo "2480"]
[BlackElo "2490"]
[ECO "A01"]
[EventDate "1980.10.23"]
[PlyCount "62"]
[Source "Perpetual Check"]

1.b3 b6 2.Bb2 Bb7 3.Nf3 e6 4.g3 f5 5.Bg2 Nf6 6.O-O Be7 7.d3 O-O 8.Nbd2 Na6
9.e4 fxe4 10.Ng5 Nc5 11.Ngxe4 Nfxe4 12.Nxe4 Nxe4 13.dxe4 Rf7 14.Qe2 Bc5 
15.Rad1 a5 16.e5 Bxg2 17.Kxg2 a4 18.Bd4 axb3 19.axb3 Qe7 20.Qc4 d5 21.exd6
cxd6 22.Rfe1 Re8 23.b4 Qb7+ 24.Kg1 b5 25.Qc3 Rf3 26.Re3 Rxe3 27.Qxe3 Bxb4 
28.Ra1 Bc5 29.Bxc5 dxc5 30.Qxc5 Rc8 31.Qe5 Qd5 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.25"]
[Round "3"]
[White "Musil, Vojko"]
[Black "Knezevic, Milorad"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2490"]
[ECO "C45"]
[EventDate "1980.10.23"]
[PlyCount "35"]
[Source "Perpetual Check"]

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Qh4 5.Nf3 Qxe4+ 6.Be2 Qe7 7.O-O Qd8 8.
Re1 Be7 9.Bb5 Nf6 10.Qe2 a6 11.Bxc6 dxc6 12.Nc3 Be6 13.Ng5 Bd5 14.Bd2 Kf8 
15.Rad1 Bd6 16.Nxd5 cxd5 17.c4 h6 18.Nf3 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.25"]
[Round "3"]
[White "Plachetka, Jan"]
[Black "Kuligowski, Adam"]
[Result "0-1"]
[WhiteElo "2480"]
[BlackElo "2405"]
[ECO "A22"]
[EventDate "1980.10.23"]
[PlyCount "76"]
[Source "Perpetual Check"]

1.c4 e5 2.Nc3 Nf6 3.g3 Bb4 4.Bg2 O-O 5.Nf3 Re8 6.O-O e4 7.Nd4 Bxc3 8.dxc3 
b6 9.Bg5 h6 10.Bxf6 Qxf6 11.f4 Bb7 12.Nc2 d6 13.Ne3 Nd7 14.Qc2 Qe6 15.g4 
Nf6 16.Qd2 Rad8 17.Rad1 Rd7 18.g5 hxg5 19.fxg5 Nh5 20.Qe1 Qg6 21.Rf5 Rde7 
22.Qh4 Bc8 23.Bh3 Nf6 24.Rdf1 Bxf5 25.Bxf5 Qh5 26.Qg3 Nh7 27.h4 Qxe2 28.g6
Nf8 29.Nd5 Qxc4 30.Nxe7+ Rxe7 31.Qg5 Re5 32.gxf7+ Qxf7 33.Qf4 Qe7 34.h5 e3
35.Bg4 e2 36.Re1 Qg5 37.Qf3 Re8 38.Qg2 Qh4 0-1

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.25"]
[Round "3"]
[White "Polajzer, Danilo"]
[Black "Danner, Georg"]
[Result "1-0"]
[WhiteElo "2215"]
[BlackElo "2345"]
[ECO "B90"]
[EventDate "1980.10.23"]
[PlyCount "103"]
[Source "Perpetual Check"]

1.d4 c5 2.e4 cxd4 3.Nf3 d6 4.Nxd4 Nf6 5.Nc3 a6 6.a4 e5 7.Nf3 h6 8.Bc4 Qc7 
9.Qe2 Be7 10.O-O Be6 11.Bb3 Nbd7 12.Rd1 O-O 13.Nh4 Nb6 14.Nf5 Bxf5 15.exf5
Rac8 16.Qf3 Rfd8 17.Be3 Nc4 18.Nd5 Nxd5 19.Qxd5 Bf6 20.a5 Nxe3 21.fxe3 Bg5
22.e4 Qe7 23.Qd3 Rc5 24.Ra3 Qc7 25.Rda1 Rc8 26.c3 Rb5 27.Kf1 Qc5 28.R1a2 
Bc1 29.Qe2 Qe3 30.Qxe3 Bxe3 31.Bd5 Bc1 32.Rb3 Rcc5 33.Rxb5 Rxb5 34.b4 Rxd5
35.exd5 Bg5 36.c4 Kf8 37.b5 Bd8 38.Ke2 Ke7 39.Kd3 Kf6 40.Ke4 h5 41.bxa6 
bxa6 42.c5 dxc5 43.d6 g6 44.fxg6 fxg6 45.Kd5 c4 46.Rf2+ Kg5 47.Kxc4 Bxa5 
48.d7 h4 49.Rf8 Kg4 50.Kd5 h3 51.g3 Bc7 52.Ke4 1-0

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.25"]
[Round "3"]
[White "Supancic, Darko"]
[Black "Velimirovic, Dragoljub"]
[Result "1/2-1/2"]
[WhiteElo "2335"]
[BlackElo "2515"]
[ECO "B39"]
[EventDate "1980.10.23"]
[PlyCount "99"]
[Source "Perpetual Check"]

1.Nf3 c5 2.c4 g6 3.d4 cxd4 4.Nxd4 Bg7 5.e4 Nc6 6.Be3 Nf6 7.Nc3 Ng4 8.Qxg4 
Nxd4 9.Qd1 Ne6 10.Rc1 Qa5 11.Qd2 b6 12.Qd5 Rb8 13.Qxa5 bxa5 14.b3 Bd4 15.
Bxd4 Nxd4 16.Nb5 Nc6 17.Nc3 Bb7 18.Bd3 Nb4 19.Kd2 Bc6 20.Nd5 e6 21.Nxb4 
axb4 22.a3 a5 23.a4 Ke7 24.Ke3 f5 25.f3 Rbc8 26.Rhd1 Rhf8 27.Rd2 f4+ 28.
Kf2 d6 29.Bf1 Bb7 30.Rcd1 Rfd8 31.Rd4 g5 32.Be2 Rd7 33.g3 Bc6 34.Bf1 Rf8 
35.g4 h5 36.Bh3 h4 37.Bf1 Rfd8 38.Bd3 Rc8 39.Bb1 Bb7 40.h3 Rc5 41.R1d2 Bc6
42.Rd1 Rd8 43.R1d2 Re5 44.Rd1 Be8 45.Bc2 Rd7 46.Bb1 Bg6 47.Bd3 Bf7 48.Bb1 
Rd8 49.Bc2 Be8 50.Bb1 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.25"]
[Round "3"]
[White "Ree, Hans"]
[Black "Osterman, Rudolf"]
[Result "1-0"]
[WhiteElo "2520"]
[BlackElo "2335"]
[ECO "D97"]
[EventDate "1980.10.23"]
[PlyCount "67"]
[Source "Perpetual Check"]

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.Qa4+ c6 5.Qxc4 g6 6.Nc3 Bg7 7.e4 O-O 8.Be2 
Nbd7 9.O-O Nb6 10.Qd3 Bg4 11.Rd1 e6 12.h3 Bxf3 13.Qxf3 Nfd7 14.Be3 Qe7 15.
Rac1 Rac8 16.Qg3 e5 17.d5 cxd5 18.Nxd5 Nxd5 19.Rxc8 Rxc8 20.Rxd5 Nb6 21.
Rd2 Bf6 22.Bh6 Bg7 23.Bg5 Bf6 24.h4 Bxg5 25.hxg5 Kg7 26.b3 Rc6 27.Qe3 Qb4 
28.Bf1 Rd6 29.Rxd6 Qxd6 30.g3 a6 31.a4 Nd7 32.Bc4 f6 33.Qa7 Nc5 34.b4 1-0

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.26"]
[Round "4"]
[White "Kovacevic, Vlatko"]
[Black "Osterman, Rudolf"]
[Result "1-0"]
[WhiteElo "2510"]
[BlackElo "2335"]
[ECO "A48"]
[EventDate "1980.10.23"]
[PlyCount "79"]
[Source "Perpetual Check"]

1.d4 Nf6 2.Nf3 g6 3.Bf4 d6 4.h3 Bg7 5.e3 Nbd7 6.Be2 O-O 7.O-O Qe8 8.c4 e5 
9.Bh2 Qe7 10.Nc3 c6 11.b4 e4 12.Nd2 Re8 13.Qb3 h5 14.c5 d5 15.b5 Qe6 16.
bxc6 bxc6 17.Qa4 Nf8 18.Bd6 Bd7 19.Ba6 N8h7 20.Bb7 Ng5 21.Rfb1 Nxh3+ 22.
gxh3 Qxh3 23.Qd1 Rad8 24.Qf1 Qh4 25.Qg2 Ng4 26.Bc7 Bxd4 27.exd4 e3 28.fxe3
Nxe3 29.Nf3 Qf6 30.Bxd8 Rxd8 31.Qf2 Ng4 32.Qg3 h4 33.Qg2 Ne3 34.Qg5 Qxf3 
35.Rf1 Nxf1 36.Rxf1 Qg3+ 37.Qxg3 hxg3 38.Rf6 Bh3 39.Bxc6 Rb8 40.Bxd5 1-0

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.26"]
[Round "4"]
[White "Velimirovic, Dragoljub"]
[Black "Ree, Hans"]
[Result "1-0"]
[WhiteElo "2515"]
[BlackElo "2520"]
[ECO "C09"]
[EventDate "1980.10.23"]
[PlyCount "87"]
[Source "Perpetual Check"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.Ngf3 Nc6 5.exd5 exd5 6.Bb5 Bd6 7.O-O cxd4 8.Nb3
Ne7 9.Nbxd4 O-O 10.c3 Bg4 11.Be2 a6 12.Be3 Qc7 13.h3 Bh5 14.Nh4 Bxe2 15.
Qxe2 Rfe8 16.Rfe1 Qd7 17.Qh5 g6 18.Qh6 Be5 19.Nxc6 Qxc6 20.Rad1 Rad8 21.
Bd4 Bxd4 22.Rxd4 Qf6 23.Re3 Nf5 24.Nxf5 Qxf5 25.Rh4 g5 26.Rh5 f6 27.Rf3 
Re1+ 28.Kh2 Qe5+ 29.g3 Rd7 30.Qxf6 Qxf6 31.Rxf6 Re5 32.h4 Rg7 33.Rxg5 
Rgxg5 34.hxg5 Re2 35.Rb6 Rxf2+ 36.Kh3 Rf7 37.Kg4 Kf8 38.Rf6 Ke7 39.Rxf7+ 
Kxf7 40.Kf5 Kg7 41.a4 a5 42.g4 Kf7 43.g6+ hxg6+ 44.Ke5 1-0

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.26"]
[Round "4"]
[White "Danner, Georg"]
[Black "Supancic, Darko"]
[Result "1/2-1/2"]
[WhiteElo "2345"]
[BlackElo "2335"]
[ECO "A54"]
[EventDate "1980.10.23"]
[PlyCount "61"]
[Source "Perpetual Check"]

1.d4 d6 2.c4 e5 3.Nf3 Nd7 4.Nc3 Ngf6 5.Bg5 c6 6.e3 Qa5 7.Qd2 Be7 8.Bd3 O-O
9.O-O Qd8 10.Qc2 g6 11.Rfd1 Qc7 12.b4 Re8 13.Rab1 a5 14.b5 Kg7 15.h3 Ng8 
16.Bxe7 Rxe7 17.bxc6 bxc6 18.d5 Nc5 19.dxc6 Qxc6 20.Nd5 Rb7 21.Rxb7 Bxb7 
22.Rb1 Re8 23.Rb6 Qd7 24.Nd2 Qd8 25.Ne4 Nxe4 26.Rxb7 Nc5 27.Rb5 Ne7 28.Qc3
Nxd5 29.cxd5 Re7 30.Bc4 Ra7 31.Qb2 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.26"]
[Round "4"]
[White "Kuligowski, Adam"]
[Black "Polajzer, Danilo"]
[Result "1-0"]
[WhiteElo "2405"]
[BlackElo "2215"]
[ECO "E12"]
[EventDate "1980.10.23"]
[PlyCount "113"]
[Source "Perpetual Check"]

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 Nxc3 10.bxc3 c5 11.e4 Nc6 12.Be3 cxd4 13.cxd4 Rc8 14.O-O O-O 15.Qe2 
Na5 16.Rfe1 Kh8 17.Ra2 f5 18.Bd2 Nb3 19.exf5 Bxf3 20.Qxf3 Nxd2 21.Rxd2 
Bxa3 22.Qh3 exf5 23.Bxf5 Rxf5 24.Qxf5 Bb4 25.Rdd1 Bxe1 26.Rxe1 Qf8 27.Qd7 
Qd8 28.Qf7 h6 29.d5 Qc7 30.Qf5 Rd8 31.g3 Qd6 32.Re6 Qc5 33.Rxh6+ gxh6 34.
Qf6+ Kg8 35.Qxd8+ Kf7 36.d6 Qc1+ 37.Kg2 Qc6+ 38.Kh3 Qe8 39.Qc7+ Ke6 40.
Qxa7 Qh5+ 41.Kg2 Qd5+ 42.f3 Qxd6 43.Qa2+ Kf6 44.Qc4 Qd2+ 45.Kh3 Qd7+ 46.g4
b5 47.Qf4+ Kg7 48.Qe5+ Kf7 49.Qe4 Kg7 50.f4 Qd6 51.Kh4 b4 52.Kh5 b3 53.
Qb7+ Kh8 54.Qxb3 Qxf4 55.Qc3+ Kh7 56.Qd3+ Kg8 57.Qd8+ 1-0

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.26"]
[Round "4"]
[White "Knezevic, Milorad"]
[Black "Plachetka, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2480"]
[ECO "E39"]
[EventDate "1980.10.23"]
[PlyCount "39"]
[Source "Perpetual Check"]

1.d4 e6 2.c4 Nf6 3.Qc2 Bb4+ 4.Nc3 c5 5.dxc5 O-O 6.Nf3 Na6 7.e3 Nxc5 8.Bd2 
b6 9.Be2 Bb7 10.O-O Nce4 11.Nxe4 Bxe4 12.Bd3 Bxd3 13.Qxd3 Bxd2 14.Qxd2 d5 
15.cxd5 Qxd5 16.Qxd5 Nxd5 17.a3 Rfc8 18.Rfc1 Kf8 19.Kf1 Ke7 20.Ke2 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.26"]
[Round "4"]
[White "Speelman, Jonathan Simon"]
[Black "Musil, Vojko"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2400"]
[ECO "E16"]
[EventDate "1980.10.23"]
[PlyCount "33"]
[Source "Perpetual Check"]

1.Nf3 d5 2.c4 e6 3.g3 Nf6 4.Bg2 Be7 5.O-O O-O 6.b3 b6 7.Bb2 Bb7 8.cxd5 
Nxd5 9.d4 c5 10.dxc5 Bxc5 11.Nc3 Qe7 12.Qb1 Nxc3 13.Bxc3 Nc6 14.a3 e5 15.
b4 Bd4 16.Bxd4 Nxd4 17.Nxd4 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.26"]
[Round "4"]
[White "Rakic, Tomislav"]
[Black "Nikolac, Juraj"]
[Result "1/2-1/2"]
[WhiteElo "2455"]
[BlackElo "2480"]
[ECO "D02"]
[EventDate "1980.10.23"]
[PlyCount "81"]
[Source "Perpetual Check"]

1.d4 d5 2.Nf3 Nf6 3.Bf4 c6 4.Nbd2 Bf5 5.c4 Nbd7 6.Qb3 Qb6 7.c5 Qxb3 8.axb3
h6 9.h3 g5 10.Bh2 Ne4 11.e3 Nxd2 12.Kxd2 a6 13.b4 Rc8 14.Ne1 Bg7 15.Nd3 
O-O 16.f3 Rfe8 17.Nc1 e5 18.Nb3 Re7 19.Bg3 Rce8 20.Re1 Bh7 21.h4 Bg6 22.
hxg5 hxg5 23.Bd3 Bxd3 24.Kxd3 f5 25.Rh5 exd4 26.Nxd4 f4 27.Bf2 fxe3 28.
Rxe3 Rxe3+ 29.Bxe3 Ne5+ 30.Kc2 Nxf3 31.gxf3 Rxe3 32.Rxg5 Re7 33.Nf5 Rd7 
34.Rg2 Kh7 35.Nd6 Be5 36.Re2 Bxd6 37.cxd6 Kg6 38.Re6+ Kf5 39.Re7 Rxd6 40.
Rxb7 Kf4 41.Kd3 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.28"]
[Round "5"]
[White "Nikolac, Juraj"]
[Black "Kovacevic, Vlatko"]
[Result "0-1"]
[WhiteElo "2480"]
[BlackElo "2510"]
[ECO "A01"]
[EventDate "1980.10.23"]
[PlyCount "121"]
[Source "Perpetual Check"]

1.b3 d5 2.Bb2 Bg4 3.h3 Bh5 4.d3 e6 5.Nd2 Nf6 6.Ngf3 Nbd7 7.e3 a5 8.a3 c6 
9.g4 Bg6 10.Nh4 Qb6 11.Bg2 a4 12.b4 c5 13.Nxg6 hxg6 14.c3 Ne5 15.Qe2 g5 
16.c4 Ng6 17.d4 cxb4 18.c5 Qa5 19.axb4 Qxb4 20.Rb1 Ra7 21.O-O Be7 22.Ba3 
Qxa3 23.Qb5+ Nd7 24.Rfc1 Nf4 25.exf4 Rxh3 26.Bxh3 Qxh3 27.Qe2 gxf4 28.c6 
bxc6 29.Rxc6 Bd8 30.Rbc1 Nf6 31.f3 Qg3+ 32.Kf1 Nd7 33.Rc8 Ke7 34.Qd3 Ba5 
35.R8c2 Bb4 36.Ke2 Ra8 37.Nf1 Qg2+ 38.Kd1 Qg1 39.Rb1 Bd6 40.Rb7 a3 41.Ra2 
Ra4 42.Qb5 Rxd4+ 43.Rd2 Rxd2+ 44.Kxd2 Qd4+ 45.Ke2 Qb2+ 46.Qxb2 axb2 47.
Rxb2 e5 48.Nd2 Ke6 49.Ra2 Nc5 50.Ra8 f5 51.Re8+ Kf7 52.Rd8 Ke7 53.Rg8 Ne6 
54.gxf5 Nd4+ 55.Kd3 Nxf5 56.Nb1 Bb4 57.Rb8 Be1 58.Rb7+ Ke6 59.Rb6+ Kd7 60.
Rg6 Ke7 61.Rg1 0-1

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.28"]
[Round "5"]
[White "Musil, Vojko"]
[Black "Rakic, Tomislav"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2455"]
[ECO "C09"]
[EventDate "1980.10.23"]
[PlyCount "29"]
[Source "Perpetual Check"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 exd5 5.Bb5+ Nc6 6.Ngf3 Bd6 7.dxc5 Bxc5 8.
O-O Ne7 9.Nb3 Bd6 10.Nbd4 O-O 11.c3 Bg4 12.Be2 a6 13.h3 Bh5 14.Bg5 Qc7 15.
Re1 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.28"]
[Round "5"]
[White "Plachetka, Jan"]
[Black "Speelman, Jonathan Simon"]
[Result "1/2-1/2"]
[WhiteElo "2480"]
[BlackElo "2490"]
[ECO "A13"]
[EventDate "1980.10.23"]
[PlyCount "49"]
[Source "Perpetual Check"]

1.Nf3 Nf6 2.c4 e6 3.g3 a6 4.Bg2 b5 5.b3 Bb7 6.O-O c5 7.Bb2 Be7 8.Nc3 b4 9.
Na4 d6 10.d4 cxd4 11.Nxd4 Bxg2 12.Kxg2 Qc7 13.a3 bxa3 14.Bxa3 O-O 15.Qd3 
Nbd7 16.Nf3 Rfd8 17.Rfd1 Qb7 18.Qe3 Ne5 19.Qb6 Qe4 20.Nc3 Qc6 21.Qxc6 Nxc6
22.e3 Rab8 23.Nd2 Kf8 24.Rdb1 Rb7 25.Bc1 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.28"]
[Round "5"]
[White "Polajzer, Danilo"]
[Black "Knezevic, Milorad"]
[Result "1/2-1/2"]
[WhiteElo "2215"]
[BlackElo "2490"]
[ECO "B05"]
[EventDate "1980.10.23"]
[PlyCount "76"]
[Source "Perpetual Check"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Bg4 5.Be2 c6 6.O-O Bxf3 7.Bxf3 dxe5 8.dxe5
e6 9.Qe2 Nd7 10.c4 Ne7 11.Bf4 Ng6 12.Bg3 Qa5 13.Re1 Bb4 14.Nc3 Bxc3 15.
bxc3 Qxc3 16.Rab1 Nc5 17.h4 O-O 18.h5 Ne7 19.Rec1 Qa5 20.Bf4 Nf5 21.Bd2 
Qxa2 22.Ra1 Qb3 23.Rcb1 Qc2 24.Bb4 Qxe2 25.Bxe2 b6 26.Bxc5 bxc5 27.Ra6 Nd4
28.Bf3 f5 29.Bxc6 Rab8 30.Rba1 Nc2 31.Bd7 Nxa1 32.Bxe6+ Kh8 33.Rxa1 Rfe8 
34.Bd5 Re7 35.f4 Rb6 36.Ra5 Rc7 37.Kh2 h6 38.g4 fxg4 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.28"]
[Round "5"]
[White "Supancic, Darko"]
[Black "Kuligowski, Adam"]
[Result "0-1"]
[WhiteElo "2335"]
[BlackElo "2405"]
[ECO "B08"]
[EventDate "1980.10.23"]
[PlyCount "145"]
[Source "Perpetual Check"]

1.d4 Nf6 2.Nf3 g6 3.Bf4 d6 4.Nc3 Bg7 5.e4 O-O 6.Qd2 Bg4 7.Be2 Nc6 8.d5 e5 
9.dxe6 fxe6 10.O-O-O Bxf3 11.Bxf3 Nd7 12.Be3 Nce5 13.Be2 Nb6 14.f3 Nec4 
15.Bxc4 Nxc4 16.Qd3 Nxe3 17.Qxe3 a6 18.h4 Qf6 19.Rd3 Qe5 20.Qg5 c6 21.Qxe5
Bxe5 22.h5 g5 23.Nd1 g4 24.Nf2 gxf3 25.gxf3 Rf7 26.Ng4 Bf4+ 27.Kd1 Kf8 28.
Ke2 Ke7 29.a4 d5 30.Nf2 Rg8 31.exd5 exd5 32.Ng4 Rf5 33.Rb3 Rb8 34.Kf2 Kd6 
35.a5 Kc7 36.Re1 Bd6 37.h6 Rg8 38.Kg2 d4 39.Re4 c5 40.Rb6 Rg6 41.b3 c4 42.
b4 Rd5 43.Kf1 Rf5 44.Kg2 Rb5 45.Rxd4 Rxb6 46.axb6+ Kxb6 47.Rxc4 Kb5 48.Rd4
b6 49.Kf1 Bf8 50.Rd7 Bxh6 51.Rxh7 Bg7 52.Rh4 Bc3 53.Nf2 Bxb4 54.Nd3 Bc3 
55.Rh5+ Ka4 56.Nf4 Rc6 57.Nd5 b5 58.Ke2 Ka3 59.Kd3 Rc5 60.Rh6 Rxd5+ 61.
Kxc3 a5 62.Rh2 a4 63.f4 Rc5+ 64.Kd3 b4 65.Rf2 Rc3+ 66.Kd4 Kb2 67.f5 a3 68.
f6 a2 69.f7 a1=Q 70.f8=Q Qa7+ 71.Kd5 Qd7+ 72.Ke4 Qe6+ 73.Kf4 0-1

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.28"]
[Round "5"]
[White "Ree, Hans"]
[Black "Danner, Georg"]
[Result "1-0"]
[WhiteElo "2520"]
[BlackElo "2345"]
[ECO "A70"]
[EventDate "1980.10.23"]
[PlyCount "75"]
[Source "Perpetual Check"]

1.d4 c5 2.d5 Nf6 3.c4 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Bf4 a6 8.Nf3 Bg7 
9.Bd3 O-O 10.h3 b5 11.O-O Re8 12.Re1 Bb7 13.Rc1 c4 14.Bb1 Qb6 15.b4 cxb3 
16.axb3 Nbd7 17.b4 Rac8 18.Qb3 Nh5 19.Be3 Qd8 20.Ne2 Qe7 21.Ned4 Ne5 22.
Nxe5 Qxe5 23.Qa2 Nf6 24.Nc6 Bxc6 25.dxc6 Nxe4 26.Bxe4 Qxe4 27.Bd2 Qf5 28.
Qxa6 Bd4 29.Be3 Bb2 30.Rb1 Bc3 31.Rec1 d5 32.Qxb5 d4 33.Qxf5 gxf5 34.b5 
Re6 35.b6 dxe3 36.b7 Rexc6 37.bxc8=Q+ Rxc8 38.fxe3 1-0

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.28"]
[Round "5"]
[White "Osterman, Rudolf"]
[Black "Velimirovic, Dragoljub"]
[Result "0-1"]
[WhiteElo "2335"]
[BlackElo "2515"]
[ECO "D32"]
[EventDate "1980.10.23"]
[PlyCount "108"]
[Source "Perpetual Check"]

1.Nf3 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.e3 O-O 6.Be2 Nc6 7.O-O d5 8.cxd5 
exd5 9.d4 Qe7 10.dxc5 Bxc5 11.a3 a5 12.Rd1 Rd8 13.b3 Bg4 14.Nb5 Rac8 15.h3
Bh5 16.Qb2 Ne4 17.Nfd4 Nxd4 18.exd4 Bxe2 19.Qxe2 Bd6 20.Nxd6 Qxd6 21.Bd2 
b6 22.Qd3 h6 23.Be1 Rc6 24.g3 Rdc8 25.Ra2 Qd7 26.Kg2 Ng5 27.h4 Ne4 28.Qf3 
g5 29.h5 f5 30.Bd2 Qf7 31.Rh1 Rc2 32.Rxc2 Rxc2 33.Be1 Qe6 34.Qd3 Qc6 35.
Rf1 Ra2 36.a4 Rb2 37.Kg1 Qe8 38.Qf3 Qf7 39.Kg2 Kg7 40.Qd3 Qxh5 41.Qb5 Nf6 
42.Qxb6 f4 43.Qc7+ Kg6 44.gxf4 Qg4+ 45.Kh2 Qe2 46.f5+ Kxf5 47.Qe5+ Qxe5+ 
48.dxe5 Ng4+ 49.Kg1 Rxb3 50.Bxa5 Ra3 51.Rd1 Ke6 52.Bc7 Rxa4 53.f3 Rc4 54.
Bb8 Rc8 0-1

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.29"]
[Round "6"]
[White "Kovacevic, Vlatko"]
[Black "Velimirovic, Dragoljub"]
[Result "1-0"]
[WhiteElo "2510"]
[BlackElo "2515"]
[ECO "A48"]
[EventDate "1980.10.23"]
[PlyCount "117"]
[Source "Perpetual Check"]

1.d4 Nf6 2.Nf3 c5 3.e3 g6 4.Nbd2 b6 5.c3 Bg7 6.a4 O-O 7.Be2 cxd4 8.exd4 
Bb7 9.O-O d6 10.Re1 a6 11.Bc4 Nbd7 12.Qb3 e6 13.Bd3 Qc7 14.Ne4 Bd5 15.Qc2 
Nxe4 16.Bxe4 Nf6 17.Bxd5 Nxd5 18.Qd3 Rfc8 19.Ng5 h6 20.Ne4 f5 21.Ng3 Qf7 
22.h4 Kh7 23.Bd2 Rd8 24.Re2 e5 25.h5 e4 26.hxg6+ Qxg6 27.Qc4 Ne7 28.Qc7 
Bf6 29.Bf4 Bh4 30.Rae1 Kh8 31.c4 b5 32.b3 bxc4 33.bxc4 Bg5 34.Bxg5 Qxg5 
35.Rb2 Rac8 36.Qa7 Ra8 37.Qb6 h5 38.c5 h4 39.cxd6 Ng6 40.Ne2 h3 41.Ng3 
hxg2 42.Qc5 Nh4 43.Rc1 Rd7 44.Rcb1 Rad8 45.Rb3 Qf6 46.Nh5 Qxd6 47.Qxd6 
Rxd6 48.Rh3 Nf3+ 49.Kxg2 Rh6 50.Rb7 Rg8+ 51.Ng3 Ne1+ 52.Kh2 Nf3+ 53.Kg2 
Rxh3 54.Kxh3 Ng5+ 55.Kh4 f4 56.Nf5 Nf3+ 57.Kh5 Re8 58.Ne7 Nxd4 59.Kh6 1-0

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.29"]
[Round "6"]
[White "Danner, Georg"]
[Black "Osterman, Rudolf"]
[Result "0-1"]
[WhiteElo "2345"]
[BlackElo "2335"]
[ECO "D22"]
[EventDate "1980.10.23"]
[PlyCount "80"]
[Source "Perpetual Check"]

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 Bg4 5.Bxc4 e6 6.Nc3 a6 7.h3 Bh5 8.Be2 Nc6
9.b3 Bd6 10.Bb2 O-O 11.O-O Qe8 12.Rc1 Rd8 13.Na4 Ne4 14.Nd2 Bxe2 15.Qxe2 
Nxd2 16.Qxd2 Qe7 17.Rfd1 e5 18.d5 Nb8 19.e4 Nd7 20.Bc3 b5 21.Ba5 bxa4 22.
Bxc7 Rc8 23.Qa5 axb3 24.axb3 Nf6 25.Bxd6 Qxd6 26.f3 Nh5 27.Rc4 Nf4 28.Kh2 
h5 29.Rdc1 Rb8 30.Rc6 Qb4 31.Qc7 Qxb3 32.d6 Ne6 33.Qe7 Rbd8 34.d7 a5 35.
Rc8 Qb4 36.R1c5 Kh7 37.Qh4 Nxc5 38.Rxd8 Rxd8 39.Qxd8 Qd2 40.Qh4 Nxd7 0-1

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.29"]
[Round "6"]
[White "Kuligowski, Adam"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2405"]
[BlackElo "2520"]
[ECO "A24"]
[EventDate "1980.10.23"]
[PlyCount "27"]
[Source "Perpetual Check"]

1.c4 e5 2.Nc3 d6 3.g3 g6 4.Bg2 Bg7 5.e4 Nf6 6.Nge2 O-O 7.O-O c6 8.d3 a6 9.
h3 b5 10.f4 exf4 11.Bxf4 Be6 12.cxb5 axb5 13.a3 Qe7 14.Qd2 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.29"]
[Round "6"]
[White "Knezevic, Milorad"]
[Black "Supancic, Darko"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2335"]
[ECO "E32"]
[EventDate "1980.10.23"]
[PlyCount "57"]
[Source "Perpetual Check"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 O-O 5.a3 Bxc3+ 6.Qxc3 b6 7.Bg5 Bb7 8.e3 
d6 9.f3 Nbd7 10.Bd3 c5 11.Ne2 Rc8 12.O-O Ba6 13.b3 cxd4 14.Qxd4 Nc5 15.Bc2
h6 16.Bxf6 Qxf6 17.Qxf6 gxf6 18.Rfe1 b5 19.cxb5 Bxb5 20.Nd4 Bd7 21.e4 e5 
22.Ne2 Bb5 23.Ng3 Ne6 24.Bd1 Nd4 25.Nh5 f5 26.exf5 f6 27.f4 Rc3 28.Ng3 Bd3
29.fxe5 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.29"]
[Round "6"]
[White "Speelman, Jonathan Simon"]
[Black "Polajzer, Danilo"]
[Result "1-0"]
[WhiteElo "2490"]
[BlackElo "2215"]
[ECO "A30"]
[EventDate "1980.10.23"]
[PlyCount "55"]
[Source "Perpetual Check"]

1.c4 c5 2.Nf3 Nf6 3.Nc3 e6 4.g3 b6 5.Bg2 Bb7 6.O-O Be7 7.Re1 O-O 8.e4 d6 
9.d4 cxd4 10.Nxd4 Qc8 11.Bf4 Rd8 12.Rc1 Nbd7 13.Qe2 a6 14.Nd5 Bf8 15.Bg5 
Re8 16.Bxf6 gxf6 17.Bh3 Bg7 18.Nf4 Ne5 19.Nh5 Qc5 20.Nb3 Qc6 21.f4 Ng6 22.
Nxg7 Kxg7 23.Qf2 a5 24.Nd4 Qc5 25.Bg2 Rad8 26.Red1 Kg8 27.Nb5 Ba6 28.Qxc5 
1-0

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.29"]
[Round "6"]
[White "Rakic, Tomislav"]
[Black "Plachetka, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2455"]
[BlackElo "2480"]
[ECO "C55"]
[EventDate "1980.10.23"]
[PlyCount "55"]
[Source "Perpetual Check"]

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d3 Be7 5.O-O O-O 6.c3 d5 7.exd5 Nxd5 8.h3 
Nb6 9.Bb3 Bf5 10.d4 exd4 11.cxd4 Bf6 12.Be3 Qd7 13.Nc3 Rad8 14.Rc1 Na5 15.
Bc2 Rfe8 16.Bxf5 Qxf5 17.Qc2 Qxc2 18.Rxc2 Nac4 19.Bf4 c6 20.b3 Na3 21.Rcc1
Nd5 22.Nxd5 Rxd5 23.Rc5 Red8 24.Re1 Kf8 25.Bd2 Nb5 26.Bb4 Kg8 27.Rxd5 cxd5
28.Be7 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.29"]
[Round "6"]
[White "Nikolac, Juraj"]
[Black "Musil, Vojko"]
[Result "1/2-1/2"]
[WhiteElo "2480"]
[BlackElo "2400"]
[ECO "E14"]
[EventDate "1980.10.23"]
[PlyCount "43"]
[Source "Perpetual Check"]

1.b3 Nf6 2.Bb2 b6 3.Nf3 e6 4.e3 Bb7 5.d4 Be7 6.Bd3 c5 7.O-O O-O 8.Nbd2 Nc6
9.c4 d5 10.Rc1 Rc8 11.Qe2 Qc7 12.Rfd1 cxd4 13.exd4 Rfd8 14.a3 dxc4 15.bxc4
Qf4 16.Nf1 Bf8 17.Ne3 Na5 18.d5 exd5 19.Be5 Qh6 20.Nf5 Qh5 21.Ng3 Qh6 22.
Nf5 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.30"]
[Round "7"]
[White "Musil, Vojko"]
[Black "Kovacevic, Vlatko"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2510"]
[ECO "B05"]
[EventDate "1980.10.23"]
[PlyCount "111"]
[Source "Perpetual Check"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Bg4 5.Be2 c6 6.O-O Bxf3 7.Bxf3 dxe5 8.dxe5
e6 9.Qe2 Nd7 10.Re1 Qc7 11.Bd2 a5 12.c4 Ne7 13.Bc3 Ng6 14.a3 a4 15.Nd2 Be7
16.g3 O-O 17.h4 Rfd8 18.Rad1 Nc5 19.h5 Nf8 20.Ne4 Nxe4 21.Bxe4 Nd7 22.Bc2 
Nc5 23.Rd4 Rxd4 24.Bxd4 Qa5 25.Bc3 Qb6 26.Qg4 Rd8 27.Re3 Rd7 28.Rf3 Qd8 
29.Bb4 Rd4 30.Rf4 Rxf4 31.Qxf4 g6 32.hxg6 hxg6 33.Qe3 Qb6 34.Kg2 Bf8 35.
Qd4 Be7 36.f4 Kf8 37.g4 Ke8 38.Qf2 Bf8 39.Kg3 Be7 40.Kg2 Bf8 41.Bc3 Qd8 
42.Bd4 Nb3 43.Bb6 Qe7 44.Bxb3 axb3 45.g5 Qd7 46.Qd4 Qxd4 47.Bxd4 b5 48.c5 
Kd7 49.Kf3 Kc7 50.Ke4 Kb7 51.Kd3 Ka6 52.Kc3 Be7 53.Kxb3 Bf8 54.Kb4 Be7 55.
b3 Bd8 56.Kc3 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.30"]
[Round "7"]
[White "Plachetka, Jan"]
[Black "Nikolac, Juraj"]
[Result "1-0"]
[WhiteElo "2480"]
[BlackElo "2480"]
[ECO "D36"]
[EventDate "1980.10.23"]
[PlyCount "85"]
[Source "Perpetual Check"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.cxd5 exd5 7.Nf3 Be7 8.Qc2 
Nf8 9.Bd3 Ng6 10.O-O-O O-O 11.Ne5 Ng4 12.Bxe7 Qxe7 13.Nxg4 Bxg4 14.Rde1 
Rfe8 15.Kb1 Rad8 16.h3 Bc8 17.Ne2 Qd6 18.g4 b6 19.Rc1 Bd7 20.Ng3 Rc8 21.
Nf5 Bxf5 22.gxf5 Nf8 23.Qa4 Rc7 24.Rc3 Nd7 25.Rhc1 c5 26.Bb5 c4 27.b3 Rec8
28.bxc4 Nf6 29.Ba6 Rb8 30.Qa3 Qd7 31.cxd5 Rxc3 32.Qxc3 Qxf5+ 33.Bd3 Qxd5 
34.Qc8+ Qd8 35.Qxd8+ Rxd8 36.Rc7 a5 37.Rb7 Nd5 38.Bc4 g6 39.Kb2 Kg7 40.e4 
Nb4 41.Rxf7+ Kh6 42.d5 Rc8 43.Kb3 1-0

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.30"]
[Round "7"]
[White "Polajzer, Danilo"]
[Black "Rakic, Tomislav"]
[Result "1/2-1/2"]
[WhiteElo "2215"]
[BlackElo "2455"]
[ECO "B88"]
[EventDate "1980.10.23"]
[PlyCount "21"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 e6 7.Be3 Be7 8.Bb3 
O-O 9.Qe2 Na5 10.O-O-O Bd7 11.g4 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.30"]
[Round "7"]
[White "Supancic, Darko"]
[Black "Speelman, Jonathan Simon"]
[Result "0-1"]
[WhiteElo "2335"]
[BlackElo "2490"]
[ECO "E12"]
[EventDate "1980.10.23"]
[PlyCount "82"]
[Source "Perpetual Check"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Bf4 Bb7 5.e3 Nc6 6.a3 Ne7 7.h3 Ng6 8.Bh2 Ne4 
9.Be2 Be7 10.Nbd2 f5 11.O-O O-O 12.Qc2 Qe8 13.Rad1 d6 14.Nxe4 Bxe4 15.Qd2 
Bb7 16.Ne1 Qa4 17.Bf3 Rab8 18.Bxb7 Rxb7 19.Qc2 Qxc2 20.Nxc2 b5 21.cxb5 
Rxb5 22.b4 Rfb8 23.Rc1 R8b7 24.Rfd1 Bd8 25.Bg3 R5b6 26.f3 Ra6 27.Rd3 Ra4 
28.Be1 Kf7 29.Kf1 Ke8 30.Ke2 Kd7 31.Bd2 c6 32.Na1 a5 33.Nb3 axb4 34.axb4 
Ra2 35.Kf1 Rba7 36.Na5 Bxa5 37.bxa5 Rb7 38.g3 Rbb2 39.Ke1 e5 40.Rd1 e4 41.
fxe4 fxe4 0-1

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.30"]
[Round "7"]
[White "Ree, Hans"]
[Black "Knezevic, Milorad"]
[Result "1-0"]
[WhiteElo "2520"]
[BlackElo "2490"]
[ECO "E16"]
[EventDate "1980.10.23"]
[PlyCount "149"]
[Source "Perpetual Check"]

1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 c5 5.Bxb4 cxb4 6.g3 b6 7.Bg2 Bb7 8.O-O 
O-O 9.a3 bxa3 10.Rxa3 Na6 11.Nc3 Nb4 12.Qb3 a5 13.Na2 Nc6 14.e3 Rb8 15.Nd2
Ba6 16.Qc2 Qe7 17.Rb1 Rfc8 18.Rc3 e5 19.d5 Nb4 20.Qa4 Nxa2 21.Qxa2 e4 22.
Rcc1 Bb7 23.Qa3 Qe5 24.Qc3 Qxc3 25.Rxc3 b5 26.cxb5 Bxd5 27.Bf1 Kf8 28.Rbc1
Rd8 29.Ra1 Ra8 30.Nc4 Bxc4 31.Rxc4 Ke7 32.h3 h6 33.Rca4 Rab8 34.Rxa5 Rdc8 
35.Ra7 Rc2 36.b3 Rc3 37.Bc4 Rb6 38.R1a6 Rb8 39.Kg2 Kd8 40.Ra8 Rxa8 41.
Rxa8+ Kc7 42.Rf8 d5 43.Rxf7+ Kd6 44.Bf1 Ne8 45.Be2 Rxb3 46.Bg4 Nf6 47.Rxg7
h5 48.Rf7 Nxg4 49.hxg4 hxg4 50.Rf4 Rxb5 51.Rxg4 Ke5 52.Rf4 Rb4 53.Rf8 Ke6 
54.g4 Ke7 55.Rf4 Rb1 56.Kg3 Rh1 57.Rf5 Ke6 58.Kf4 Rh8 59.Re5+ Kd6 60.Rh5 
Rg8 61.Rf5 Rg6 62.g5 Ke6 63.Re5+ Kd6 64.Re8 Kd7 65.Ra8 Ke7 66.Kf5 Rb6 67.
Ra7+ Kf8 68.g6 Rb2 69.Rf7+ Kg8 70.Kg5 d4 71.exd4 Rd2 72.Kh6 Rxd4 73.Ra7 
Rd8 74.Re7 Rf8 75.Rxe4 1-0

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.30"]
[Round "7"]
[White "Osterman, Rudolf"]
[Black "Kuligowski, Adam"]
[Result "1-0"]
[WhiteElo "2335"]
[BlackElo "2405"]
[ECO "E61"]
[EventDate "1980.10.23"]
[PlyCount "81"]
[Source "Perpetual Check"]

1.Nf3 Nf6 2.c4 g6 3.d4 Bg7 4.Nc3 O-O 5.Bg5 h6 6.Bh4 d6 7.e3 g5 8.Bg3 Nh5 
9.Nd2 Nxg3 10.hxg3 e6 11.Be2 Nd7 12.g4 f5 13.Qc2 f4 14.O-O-O c6 15.exf4 
Rxf4 16.Nf3 Qe7 17.g3 Rf7 18.Qg6 Nf8 19.Qe4 Bd7 20.Qe3 b6 21.Ne1 c5 22.Nc2
cxd4 23.Nxd4 Rc8 24.Kb1 Ng6 25.f3 Ne5 26.b3 Nc6 27.Ndb5 Qf6 28.Nxd6 Re7 
29.Nde4 Qe5 30.f4 gxf4 31.gxf4 Qa5 32.g5 hxg5 33.fxg5 Be8 34.Nf6+ Kf8 35.
Rhf1 Bg6+ 36.Bd3 Bf5 37.Bxf5 exf5 38.Qh3 Re5 39.Rd5 Rxd5 40.Ncxd5 Nd4 41.
Qh7 1-0

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.30"]
[Round "7"]
[White "Velimirovic, Dragoljub"]
[Black "Danner, Georg"]
[Result "1-0"]
[WhiteElo "2515"]
[BlackElo "2345"]
[ECO "B57"]
[EventDate "1980.10.23"]
[PlyCount "69"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 d6 3.Nc3 Nc6 4.d4 cxd4 5.Nxd4 Nf6 6.Bc4 Bd7 7.Be3 Rc8 8.Bb3 
Ng4 9.O-O g6 10.Nxc6 bxc6 11.Bd4 e5 12.Bxa7 Qh4 13.h3 Nf6 14.Qd3 g5 15.f3 
Nh5 16.Bf2 Qf4 17.g4 Ng7 18.Kg2 h5 19.Bg3 Qf6 20.Nd1 Ne6 21.Bxe6 fxe6 22.
Ne3 h4 23.Bh2 d5 24.Rad1 Bd6 25.Nc4 Bc7 26.exd5 cxd5 27.Ne3 Bc6 28.Qa6 Kd7
29.Nc4 Rb8 30.Qa7 Rb7 31.Qe3 e4 32.fxe4 Bf4 33.Bxf4 gxf4 34.Rxf4 Qg7 35.
Qc5 1-0

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.31"]
[Round "8"]
[White "Kovacevic, Vlatko"]
[Black "Danner, Georg"]
[Result "1-0"]
[WhiteElo "2510"]
[BlackElo "2345"]
[ECO "D05"]
[EventDate "1980.10.23"]
[PlyCount "63"]
[Source "Perpetual Check"]

1.d4 c5 2.e3 Nf6 3.Nf3 e6 4.Bd3 d5 5.O-O b6 6.Ne5 Nbd7 7.c3 Bb7 8.f4 Be7 
9.Nd2 O-O 10.Qf3 Rc8 11.g4 Nxe5 12.fxe5 Nd7 13.Qh3 g6 14.Nf3 f6 15.exf6 
Bxf6 16.g5 Bxg5 17.Qxe6+ Kg7 18.Kh1 Be7 19.Qh3 Bd6 20.Bd2 Qe7 21.Rg1 Rf6 
22.Nh4 Kf7 23.Raf1 Rxf1 24.Rxf1+ Ke8 25.Nxg6 hxg6 26.Bxg6+ Kd8 27.Rf7 Qxf7
28.Bxf7 Kc7 29.Be6 Rd8 30.Be1 Bc6 31.Bg3 Rf8 32.Bxd7 1-0

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.31"]
[Round "8"]
[White "Kuligowski, Adam"]
[Black "Velimirovic, Dragoljub"]
[Result "0-1"]
[WhiteElo "2405"]
[BlackElo "2515"]
[ECO "E92"]
[EventDate "1980.10.23"]
[PlyCount "114"]
[Source "Perpetual Check"]

1.d4 Nf6 2.Nf3 c5 3.d5 g6 4.c4 Bg7 5.Nc3 O-O 6.e4 d6 7.Be2 e5 8.Bg5 h6 9.
Bd2 Nbd7 10.g3 a6 11.a4 Nh5 12.a5 Ndf6 13.h3 Bd7 14.Kf1 Rb8 15.Kg2 Qc7 16.
Ne1 b5 17.axb6 Rxb6 18.Nd3 Rfb8 19.Ra2 Rb4 20.Nxb4 cxb4 21.Nb1 Nxe4 22.
Rxa6 Nc5 23.Ra2 Nf6 24.b3 Nfe4 25.Be1 f5 26.f3 Nf6 27.Nd2 h5 28.Bf2 h4 29.
g4 e4 30.Bxh4 exf3+ 31.Bxf3 Rf8 32.Bg3 Nh7 33.gxf5 Bxf5 34.Bg4 Bd3 35.Be2 
Be4+ 36.Nxe4 Nxe4 37.Be1 Qc5 38.Bg4 Nhf6 39.Rf1 Qe3 40.Re2 Qg5 41.Bd2 Qe5 
42.Bf4 Qc3 43.Be6+ Kh7 44.Rf3 Qxf3+ 45.Kxf3 Nc3 46.Qc2 Nh5 47.Rf2 Bd4 48.
Rf1 Nxf4 49.Kg4 Nxe6 50.dxe6 Rxf1 51.Qd3 Re1 52.Qxd4 Re4+ 53.Qxe4 Nxe4 54.
Kf4 Nf6 55.Ke3 Kg7 56.Kd4 Kf8 57.c5 Ke7 0-1

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.31"]
[Round "8"]
[White "Knezevic, Milorad"]
[Black "Osterman, Rudolf"]
[Result "1-0"]
[WhiteElo "2490"]
[BlackElo "2335"]
[ECO "D93"]
[EventDate "1980.10.23"]
[PlyCount "73"]
[Source "Perpetual Check"]

1.d4 d5 2.Nf3 Nf6 3.Bf4 g6 4.e3 Bg7 5.c4 O-O 6.Nc3 c5 7.dxc5 Qa5 8.Rc1 
dxc4 9.Bxc4 Nc6 10.O-O Qxc5 11.Nb5 Qh5 12.Nc7 Rb8 13.Be2 Qa5 14.Nb5 Ra8 
15.Bc7 Qb4 16.Bc4 Be6 17.Bxe6 Qxb5 18.Bc4 Qxb2 19.Rb1 Qc3 20.Qa4 Nd7 21.
Rfc1 Nb6 22.Bxb6 axb6 23.Bxf7+ Kxf7 24.Ng5+ Kg8 25.Qh4 Qxc1+ 26.Rxc1 h6 
27.Qc4+ Kh8 28.Ne6 Rf5 29.Qb3 Raa5 30.a4 Ra6 31.Nf4 Kh7 32.h4 Nd4 33.Qd1 
b5 34.axb5 Rd6 35.Qf1 Nxb5 36.g4 Re5 37.Rc8 1-0

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.31"]
[Round "8"]
[White "Speelman, Jonathan Simon"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2520"]
[ECO "D85"]
[EventDate "1980.10.23"]
[PlyCount "62"]
[Source "Perpetual Check"]

1.c4 g6 2.d4 Nf6 3.Nf3 Bg7 4.Nc3 d5 5.cxd5 Nxd5 6.e4 Nxc3 7.bxc3 O-O 8.Be2
b6 9.O-O Bb7 10.Qc2 Qd7 11.Bg5 e6 12.Rfd1 Nc6 13.Rac1 Rac8 14.Bb5 Qd6 15.
e5 Qa3 16.Nd2 f6 17.exf6 Bxf6 18.Bxf6 Rxf6 19.Re1 Rcf8 20.Re2 Nd8 21.Rce1 
Qd6 22.Ne4 Bxe4 23.Qxe4 c5 24.Qe5 Qe7 25.Bc4 cxd4 26.cxd4 Qb4 27.Rc1 Rxf2 
28.Bxe6+ Nxe6 29.Rxf2 Rxf2 30.Rc8+ Rf8 31.Qxe6+ Kh8 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.31"]
[Round "8"]
[White "Rakic, Tomislav"]
[Black "Supancic, Darko"]
[Result "1/2-1/2"]
[WhiteElo "2455"]
[BlackElo "2335"]
[ECO "B29"]
[EventDate "1980.10.23"]
[PlyCount "20"]
[Source "Perpetual Check"]

1.e4 c5 2.Nf3 Nf6 3.e5 Nd5 4.Nc3 e6 5.Nxd5 exd5 6.d4 Nc6 7.Be2 d6 8.exd6 
Bxd6 9.dxc5 Bxc5 10.O-O O-O 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.31"]
[Round "8"]
[White "Nikolac, Juraj"]
[Black "Polajzer, Danilo"]
[Result "1/2-1/2"]
[WhiteElo "2480"]
[BlackElo "2215"]
[ECO "A01"]
[EventDate "1980.10.23"]
[PlyCount "85"]
[Source "Perpetual Check"]

1.b3 e5 2.Bb2 Nc6 3.e3 d5 4.Bb5 Bd6 5.Nf3 Qe7 6.d4 exd4 7.Qxd4 Nf6 8.Ne5 
Bd7 9.Bxc6 bxc6 10.Nxd7 Nxd7 11.Qa4 Be5 12.Bxe5 Qxe5 13.Qd4 Qxd4 14.exd4 
c5 15.Nc3 c6 16.Rd1 O-O-O 17.f3 Rhe8+ 18.Kf2 Re7 19.Ne2 Rde8 20.Rd2 cxd4 
21.Nxd4 Kc7 22.Rc1 Re5 23.c4 dxc4 24.Rxc4 Rc5 25.Ra4 a5 26.b4 Nb6 27.bxc5 
Nxa4 28.Rc2 Re5 29.Nb3 Kd7 30.f4 Rd5 31.Ke3 Kc7 32.g3 f5 33.Ke2 g6 34.Ke3 
Kd7 35.Nxa5 Nxc5 36.Nc4 Kc7 37.Ne5 Kd6 38.h4 Rd1 39.Nf7+ Kd5 40.Ke2 Rg1 
41.Kf2 Rd1 42.Ke2 Rg1 43.Kf2 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.10.31"]
[Round "8"]
[White "Musil, Vojko"]
[Black "Plachetka, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2480"]
[ECO "B16"]
[EventDate "1980.10.23"]
[PlyCount "23"]
[Source "Perpetual Check"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Nxf6+ gxf6 6.c3 Bf5 7.Bd3 Bxd3 8.
Qxd3 Qd5 9.Nf3 Nd7 10.O-O O-O-O 11.Re1 e6 12.Bf4 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.02"]
[Round "9"]
[White "Plachetka, Jan"]
[Black "Kovacevic, Vlatko"]
[Result "1/2-1/2"]
[WhiteElo "2480"]
[BlackElo "2510"]
[ECO "A88"]
[EventDate "1980.10.23"]
[PlyCount "114"]
[Source "Perpetual Check"]

1.c4 f5 2.Nc3 Nf6 3.g3 g6 4.Bg2 Bg7 5.d4 c6 6.Nf3 O-O 7.O-O d6 8.Bf4 Nh5 
9.Qd2 Nxf4 10.gxf4 a5 11.b3 Na6 12.Rac1 Bd7 13.Rfd1 Qc7 14.Qe3 Rae8 15.c5 
Bh6 16.cxd6 exd6 17.Qd2 Qd8 18.e3 Kh8 19.Ne2 Be6 20.Ne1 Nb4 21.Nd3 Nxd3 
22.Qxd3 Bd7 23.Kh1 Qh4 24.Ng3 g5 25.fxg5 Bxg5 26.d5 c5 27.Qc3+ Bf6 28.Qxa5
f4 29.exf4 Bd4 30.Qc7 Bc8 31.Rc2 Qxf4 32.Rf1 Be5 33.Rc4 Qh6 34.Kg1 b5 35.
Re4 Bf5 36.Re3 b4 37.Rfe1 Bg6 38.Qd7 Qf4 39.Rf1 Ra8 40.Be4 Rxa2 41.Rf3 Qh6
42.Rxf8+ Qxf8 43.Bxg6 hxg6 44.f4 Bd4+ 45.Kh1 Qf6 46.Ne4 Qh4 47.h3 Ra7 48.
Qe8+ Kg7 49.Ng5 Bf6 50.Qe3 Kh6 51.Ne6 Qh5 52.f5+ g5 53.Kg2 Ra2+ 54.Rf2 Ra1
55.Rf3 Qh4 56.Rg3 Ra2+ 57.Kf1 Rc2 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.02"]
[Round "9"]
[White "Polajzer, Danilo"]
[Black "Musil, Vojko"]
[Result "1/2-1/2"]
[WhiteElo "2215"]
[BlackElo "2400"]
[ECO "B17"]
[EventDate "1980.10.23"]
[PlyCount "29"]
[Source "Perpetual Check"]

1.e4 c6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Nd7 5.Nf3 Ngf6 6.Nxf6+ Nxf6 7.Bc4 Bf5 8.
O-O e6 9.c3 Be7 10.Bd3 Bxd3 11.Qxd3 O-O 12.Qe2 Qc7 13.Bg5 Nd5 14.Bxe7 Qxe7
15.Rfd1 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.02"]
[Round "9"]
[White "Supancic, Darko"]
[Black "Nikolac, Juraj"]
[Result "0-1"]
[WhiteElo "2335"]
[BlackElo "2480"]
[ECO "D02"]
[EventDate "1980.10.23"]
[PlyCount "69"]
[Source "Perpetual Check"]

1.d4 d5 2.Nf3 Nf6 3.Bf4 e6 4.e3 c5 5.c3 Nc6 6.Nbd2 Bd6 7.Bg5 h6 8.Bh4 Qb6 
9.Qb3 Bd7 10.Be2 cxd4 11.exd4 Nh5 12.Bg3 Nf4 13.Qxb6 axb6 14.Ne5 Bxe5 15.
dxe5 Nxe2 16.Kxe2 O-O 17.f4 f6 18.exf6 Rxf6 19.Nf3 Ra4 20.Rhe1 Be8 21.Kd2 
Bg6 22.b3 Ra8 23.Ne5 Nxe5 24.fxe5 Rf7 25.Re2 b5 26.Ke3 Rc7 27.Kd4 b6 28.
Bf4 Be4 29.Bg3 Ra3 30.Bh4 Bf5 31.h3 b4 32.cxb4 Rc4+ 33.Ke3 Rxh4 34.g4 
Rxh3+ 35.Kf4 0-1

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.02"]
[Round "9"]
[White "Ree, Hans"]
[Black "Rakic, Tomislav"]
[Result "1-0"]
[WhiteElo "2520"]
[BlackElo "2455"]
[ECO "A86"]
[EventDate "1980.10.23"]
[PlyCount "59"]
[Source "Perpetual Check"]

1.d4 g6 2.c4 f5 3.g3 Bg7 4.Bg2 Nf6 5.Nh3 O-O 6.O-O c6 7.Nc3 d6 8.d5 e5 9.
dxe6 Bxe6 10.Qb3 Qe7 11.Ng5 Bf7 12.Nxf7 Rxf7 13.Bf4 Na6 14.Rad1 Ne8 15.Qa3
Qe6 16.Bxc6 bxc6 17.Qxa6 Bxc3 18.bxc3 c5 19.Rfe1 Rb8 20.f3 Rb6 21.Qa4 Nf6 
22.Rd3 Kg7 23.Kf2 g5 24.Re3 Ne4+ 25.fxe4 fxe4 26.Kg1 gxf4 27.gxf4 Rb2 28.
Kh1 Kh6 29.Rg1 Rb6 30.Qe8 1-0

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.02"]
[Round "9"]
[White "Osterman, Rudolf"]
[Black "Speelman, Jonathan Simon"]
[Result "1/2-1/2"]
[WhiteElo "2335"]
[BlackElo "2490"]
[ECO "A42"]
[EventDate "1980.10.23"]
[PlyCount "124"]
[Source "Perpetual Check"]

1.d4 g6 2.c4 Bg7 3.Nc3 d6 4.Nf3 Nd7 5.e4 e5 6.Be3 Ngf6 7.h3 exd4 8.Bxd4 
O-O 9.Be2 Re8 10.Qc2 b6 11.O-O Bb7 12.Bd3 Nc5 13.Rfe1 Ne6 14.Be3 Nd7 15.
Rad1 Ndc5 16.Nd5 Nxd3 17.Rxd3 Nc5 18.Bxc5 bxc5 19.Rde3 a5 20.a4 Rb8 21.b3 
c6 22.Nc3 Qb6 23.Rd1 Ba6 24.Ne2 Bh6 25.Rc3 Rbd8 26.Rcd3 Qc7 27.Nc3 Bc8 28.
Re1 Bg7 29.Qd2 Qb6 30.Na2 Bb7 31.Nc1 Rd7 32.Qf4 d5 33.e5 Rde7 34.Rde3 Bc8 
35.g4 Qb8 36.cxd5 cxd5 37.Rc3 Qb6 38.Nd3 d4 39.Rcc1 Rc7 40.Nd2 Ba6 41.Nb2 
Rce7 42.Nbc4 Qb8 43.Qg3 Bxe5 44.Nxe5 Rxe5 45.Rxe5 Qxe5 46.Qxe5 Rxe5 47.Nf3
Re2 48.Rxc5 d3 49.Rd5 Rb2 50.Rd6 Bb7 51.Rxd3 Rb1+ 52.Kh2 Kg7 53.g5 Be4 54.
Re3 Bd5 55.Nd4 Rd1 56.Nb5 h6 57.h4 Rb1 58.Nc7 Bxb3 59.Ne8+ Kh8 60.Nf6 Bxa4
61.Re5 Rb4 62.Kg3 Rb3+ 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.02"]
[Round "9"]
[White "Velimirovic, Dragoljub"]
[Black "Knezevic, Milorad"]
[Result "1-0"]
[WhiteElo "2515"]
[BlackElo "2490"]
[ECO "C43"]
[EventDate "1980.10.23"]
[PlyCount "107"]
[Source "Perpetual Check"]

1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4 4.Bd3 d5 5.Nxe5 Bd6 6.O-O O-O 7.Nd2 Bxe5 8.
dxe5 Nc5 9.Nb3 Nxd3 10.Qxd3 Nc6 11.Bf4 Qd7 12.Rad1 Qg4 13.Qg3 Qxg3 14.Bxg3
Ne7 15.c3 c6 16.Rfe1 Nf5 17.Bf4 b6 18.Nd4 Bd7 19.h3 Rfe8 20.g4 Nxd4 21.
cxd4 f5 22.exf6 gxf6 23.f3 Kf7 24.Kf2 Re6 25.Rxe6 Bxe6 26.Rc1 Rc8 27.b4 
Bd7 28.Rc3 Ra8 29.Ra3 Bc8 30.Bc7 Bb7 31.Re3 Rc8 32.Bd6 Re8 33.a4 Rxe3 34.
Kxe3 Ke6 35.Bb8 a5 36.bxa5 bxa5 37.Bc7 c5 38.dxc5 Bc6 39.Bxa5 Bxa4 40.Bc3 
Bc6 41.Kf4 Bd7 42.h4 Be8 43.h5 Ke7 44.Bb2 Kf7 45.g5 Ke6 46.Kg4 fxg5 47.
Kxg5 Ba4 48.f4 Bc2 49.Bd4 Bd3 50.c6 Kd6 51.f5 Bb5 52.Kh6 Bxc6 53.Kxh7 Bd7 
54.f6 1-0

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.02"]
[Round "9"]
[White "Danner, Georg"]
[Black "Kuligowski, Adam"]
[Result "1-0"]
[WhiteElo "2345"]
[BlackElo "2405"]
[ECO "E54"]
[EventDate "1980.10.23"]
[PlyCount "82"]
[Source "Perpetual Check"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 c5 6.Nf3 d5 7.O-O cxd4 8.exd4 
dxc4 9.Bxc4 b6 10.Qe2 Bb7 11.Rd1 Bxc3 12.bxc3 Qc7 13.Bd2 Nbd7 14.Bd3 Rfe8 
15.Re1 Rac8 16.Rac1 h6 17.c4 Bxf3 18.Qxf3 e5 19.d5 Qd6 20.Bf5 Rc7 21.Qg3 
Kf8 22.Qh4 Rec8 23.a4 a6 24.a5 b5 25.Bxd7 Qxd7 26.Bxh6 Ng8 27.Bd2 Qd6 28.
cxb5 Rxc1 29.Bxc1 axb5 30.h3 f6 31.Rd1 Rc4 32.Qg3 Ra4 33.Qc3 Ne7 34.Be3 
Rc4 35.Qb3 Qa6 36.d6 Nc6 37.d7 Ke7 38.Bb6 Nd8 39.Qd3 Rc6 40.Qh7 Ne6 41.Qg8
Rd6 1-0

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.03"]
[Round "10"]
[White "Kovacevic, Vlatko"]
[Black "Kuligowski, Adam"]
[Result "1/2-1/2"]
[WhiteElo "2510"]
[BlackElo "2405"]
[ECO "A41"]
[EventDate "1980.10.23"]
[PlyCount "121"]
[Source "Perpetual Check"]

1.d4 g6 2.Nf3 Bg7 3.Bf4 d6 4.e3 Nd7 5.h3 e5 6.Bh2 Nh6 7.Be2 O-O 8.O-O f5 
9.c4 g5 10.dxe5 dxe5 11.Nc3 c6 12.e4 f4 13.Ne1 Qe7 14.Nd3 Rd8 15.Qa4 Nf8 
16.f3 Ne6 17.Rfd1 Nf7 18.Kf1 Nd4 19.Bg1 Be6 20.Rac1 b6 21.Bxd4 exd4 22.Nb1
Qc7 23.Nd2 Bf6 24.Nb3 a5 25.Rc2 c5 26.Nbc1 Bd7 27.Qa3 a4 28.Nf2 Ne5 29.Ng4
Nxg4 30.hxg4 Kg7 31.Kf2 h5 32.gxh5 Rh8 33.Rh1 Be8 34.Nd3 Ra5 35.Rcc1 Rxh5 
36.Rxh5 Bxh5 37.Rh1 Bg6 38.Ke1 Ra7 39.Nf2 Bf7 40.Qd3 Bg6 41.Qc2 Ra8 42.Bd3
Be5 43.Ng4 Qe7 44.Kf2 Qe8 45.Qd1 Ra7 46.Rh6 Re7 47.Qh1 Qf8 48.Qh3 Qe8 49.
Kg1 Qf8 50.Rh5 Bxh5 51.Qxh5 Qh8 52.Qxg5+ Kf8 53.Qf5+ Ke8 54.Qg6+ Kf8 55.
Qxb6 Qh4 56.Qxc5 Qe1+ 57.Bf1 d3 58.Nxe5 d2 59.Qc8+ Kg7 60.Qg4+ Kh7 61.Qg6+
1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.03"]
[Round "10"]
[White "Knezevic, Milorad"]
[Black "Danner, Georg"]
[Result "1-0"]
[WhiteElo "2490"]
[BlackElo "2345"]
[ECO "A43"]
[EventDate "1980.10.23"]
[PlyCount "133"]
[Source "Perpetual Check"]

1.d4 c5 2.d5 Nf6 3.Nc3 d6 4.e4 g6 5.Nf3 Bg7 6.Bb5+ Nfd7 7.a4 Na6 8.O-O O-O
9.Re1 Nc7 10.Bf1 Rb8 11.Nb5 Nxb5 12.axb5 a6 13.bxa6 bxa6 14.c3 Qc7 15.Ra3 
Ra8 16.Bg5 Ne5 17.Nd2 h6 18.Bh4 g5 19.Bg3 a5 20.Bxe5 Bxe5 21.Nc4 Bg7 22.
Qa1 Bd7 23.Nxa5 Rfb8 24.Qa2 Ra7 25.Ra1 Rba8 26.Nc4 Rxa3 27.Nxa3 Ra4 28.Qb1
Qa5 29.Qc2 Qa8 30.Re1 Qb8 31.Ra1 Qa8 32.Bd3 Ra7 33.Qc1 Ra4 34.Qd2 Ra7 35.
Rc1 Qb8 36.Ra1 Qa8 37.h3 Ra4 38.Rf1 Qb8 39.Rb1 Ra7 40.Nc4 Qb3 41.Qc1 Bb5 
42.Nd2 Qa4 43.Bxb5 Qxb5 44.Qf1 Qa4 45.Qd3 Rb7 46.Nc4 Qa2 47.Re1 Qa8 48.g3 
Ra7 49.Kg2 Qb8 50.Qc2 Ra2 51.Rb1 Qb5 52.Ne3 Qb6 53.Nf5 e6 54.Ne3 Qb5 55.
Qd2 Ra6 56.Qd1 Rb6 57.Ra1 Ra6 58.Rxa6 Qxa6 59.Qb3 Qc8 60.Qb6 Bf8 61.b4 
cxb4 62.cxb4 Qc3 63.Qb5 exd5 64.exd5 Qe5 65.Qd3 Be7 66.Ng4 Qg7 67.Qe4 1-0

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.03"]
[Round "10"]
[White "Speelman, Jonathan Simon"]
[Black "Velimirovic, Dragoljub"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2515"]
[ECO "E05"]
[EventDate "1980.10.23"]
[PlyCount "49"]
[Source "Perpetual Check"]

1.Nf3 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.O-O O-O 6.d4 dxc4 7.Qc2 a6 8.Qxc4 b5
9.Qc2 Bb7 10.Bf4 Nc6 11.Nbd2 Rc8 12.a3 Nxd4 13.Nxd4 Bxg2 14.Nxe6 Qd5 15.
Nxf8 Bxf1 16.Nxf1 Bxf8 17.Rd1 Qe6 18.Ne3 c5 19.Qf5 c4 20.Be5 Qxf5 21.Nxf5 
a5 22.Kf1 Ne8 23.Bc3 b4 24.axb4 axb4 25.Bxg7 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.03"]
[Round "10"]
[White "Rakic, Tomislav"]
[Black "Osterman, Rudolf"]
[Result "1/2-1/2"]
[WhiteElo "2455"]
[BlackElo "2335"]
[ECO "D00"]
[EventDate "1980.10.23"]
[PlyCount "65"]
[Source "Perpetual Check"]

1.d4 d5 2.Nf3 Nf6 3.Bf4 g6 4.Nc3 Bg7 5.Qd2 Ne4 6.Nxe4 dxe4 7.Ne5 c5 8.e3 
O-O 9.Bc4 Nd7 10.Nxd7 Qxd7 11.c3 b5 12.Be2 Bb7 13.Rd1 cxd4 14.cxd4 a5 15.
O-O Rfc8 16.h3 b4 17.f3 Bd5 18.b3 exf3 19.Bxf3 Rc3 20.e4 Bb7 21.d5 a4 22.
bxa4 Qxa4 23.Rb1 Ba6 24.Bd1 Qa5 25.Rf3 Bc4 26.Bb3 Bxb3 27.axb3 Qc5+ 28.Kh2
Rc2 29.Rc1 Raa2 30.Rxc2 Rxc2 31.Qd1 Rc3 32.d6 exd6 33.Qxd6 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.03"]
[Round "10"]
[White "Nikolac, Juraj"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2480"]
[BlackElo "2520"]
[ECO "A01"]
[EventDate "1980.10.23"]
[PlyCount "79"]
[Source "Perpetual Check"]

1.b3 e5 2.Bb2 d6 3.e3 Nf6 4.c4 g6 5.Nf3 Bg7 6.d4 exd4 7.Nxd4 O-O 8.Be2 d5 
9.O-O c5 10.Nf3 Nc6 11.Na3 Be6 12.Rc1 b6 13.Ng5 Bf5 14.cxd5 Nxd5 15.Bxg7 
Kxg7 16.Nb5 a6 17.Bf3 Ncb4 18.a3 Qxg5 19.axb4 Rad8 20.h4 Qxh4 21.Bxd5 axb5
22.bxc5 Qf6 23.Qf3 bxc5 24.Rxc5 Rc8 25.b4 Rxc5 26.bxc5 Qc3 27.e4 Qxf3 28.
gxf3 Be6 29.Rb1 Rb8 30.f4 b4 31.c6 b3 32.Kf1 Rb5 33.Bxe6 fxe6 34.Ke2 Kf6 
35.Kd3 Rb6 36.Kd4 Rxc6 37.Rxb3 Rd6+ 38.Ke3 Rd7 39.Rb8 Ra7 40.Rh8 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.03"]
[Round "10"]
[White "Musil, Vojko"]
[Black "Supancic, Darko"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2335"]
[ECO "B26"]
[EventDate "1980.10.23"]
[PlyCount "29"]
[Source "Perpetual Check"]

1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.Nge2 e6 7.O-O Nge7 8.Be3 Nd4
9.Qd2 O-O 10.Nd1 Rb8 11.c3 Nxe2+ 12.Qxe2 b6 13.f4 Bb7 14.Nf2 d5 15.Bd2 
1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.03"]
[Round "10"]
[White "Plachetka, Jan"]
[Black "Polajzer, Danilo"]
[Result "1/2-1/2"]
[WhiteElo "2480"]
[BlackElo "2215"]
[ECO "A30"]
[EventDate "1980.10.23"]
[PlyCount "84"]
[Source "Perpetual Check"]

1.Nf3 Nf6 2.c4 c5 3.g3 b6 4.Bg2 Bb7 5.O-O g6 6.Nc3 Bg7 7.d3 O-O 8.Bd2 d5 
9.cxd5 Nxd5 10.Rb1 Nc6 11.Nxd5 Qxd5 12.a3 Nd4 13.b4 Qd7 14.Nxd4 Bxg2 15.
Kxg2 cxd4 16.Qb3 Rfc8 17.Rfc1 e5 18.b5 Bf8 19.a4 h5 20.f3 Kg7 21.e4 Rc5 
22.Rxc5 Bxc5 23.h3 f5 24.Re1 Re8 25.Bg5 Qf7 26.Qxf7+ Kxf7 27.f4 exf4 28.
Bxf4 a6 29.Kf3 axb5 30.axb5 Ra8 31.exf5 gxf5 32.Re5 Kf6 33.Rxc5 bxc5 34.b6
Ra3 35.b7 Rxd3+ 36.Ke2 Rb3 37.b8=Q Rxb8 38.Bxb8 c4 39.h4 Ke6 40.Bf4 Kd5 
41.Kd2 Ke4 42.Kc2 Kf3 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.04"]
[Round "11"]
[White "Polajzer, Danilo"]
[Black "Kovacevic, Vlatko"]
[Result "1/2-1/2"]
[WhiteElo "2215"]
[BlackElo "2510"]
[ECO "B03"]
[EventDate "1980.10.23"]
[PlyCount "101"]
[Source "Perpetual Check"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.f4 dxe5 6.fxe5 Nc6 7.Be3 Bf5 8.Nc3 e6
9.Nf3 Be7 10.d5 exd5 11.cxd5 Nb4 12.Nd4 Bd7 13.Qb3 c5 14.dxc6 bxc6 15.Rd1 
Qb8 16.e6 fxe6 17.Nf3 a5 18.Ne4 N6d5 19.Bc5 Bxc5 20.Nxc5 Nxa2 21.Qxb8+ 
Rxb8 22.Bc4 Rxb2 23.O-O Bc8 24.Nd3 Rxg2+ 25.Kxg2 Ne3+ 26.Kf2 Nxc4 27.Nde5 
Nxe5 28.Nxe5 Nc3 29.Rc1 Rf8+ 30.Kg2 Nd5 31.Rxf8+ Kxf8 32.Ra1 Ke7 33.Nxc6+ 
Kf6 34.Nxa5 e5 35.Nc4 g5 36.Kf2 Nf4 37.Ke3 h5 38.Ra5 Ng6 39.Nd6 Be6 40.
Ne8+ Ke7 41.Ng7 Bg4 42.Ke4 Nh4 43.Rxe5+ Kf6 44.Ne8+ Kg6 45.Ra5 Bf3+ 46.Ke3
g4 47.Kf2 Nf5 48.Rxf5 Kxf5 49.Ng7+ Kg5 50.Nxh5 Kxh5 51.Kg3 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.04"]
[Round "11"]
[White "Supancic, Darko"]
[Black "Plachetka, Jan"]
[Result "1-0"]
[WhiteElo "2335"]
[BlackElo "2480"]
[ECO "C44"]
[EventDate "1980.10.23"]
[PlyCount "89"]
[Source "Perpetual Check"]

1.e4 e5 2.Nf3 Nc6 3.c3 f5 4.d4 fxe4 5.Nxe5 Nf6 6.Bg5 Bd6 7.Ng4 Be7 8.Bxf6 
Bxf6 9.d5 Nb8 10.Nd2 e3 11.Nxe3 O-O 12.Nf3 d6 13.Bd3 Nd7 14.Qc2 h6 15.O-O 
Ne5 16.Nxe5 Bxe5 17.Be4 Bd7 18.g3 b5 19.Rad1 a5 20.f4 Bf6 21.Nf5 Qb8 22.
Nd4 Qb6 23.Kg2 b4 24.Ne6 Rfb8 25.Rf2 bxc3 26.bxc3 Qe3 27.Rf3 Qb6 28.Qd2 a4
29.Bc2 Qb2 30.Qd3 Bxe6 31.dxe6 Qxa2 32.Rd2 Qxe6 33.Re2 Qf7 34.Qh7+ Kf8 35.
Be4 Ra5 36.Rfe3 Qg8 37.Qg6 Qf7 38.Qh7 a3 39.Bg6 Qd5+ 40.Kh3 Raa8 41.Be4 
Qh5+ 42.Kg2 Kf7 43.Bf5 Be5 44.fxe5 Rh8 45.Bg6+ 1-0

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.04"]
[Round "11"]
[White "Ree, Hans"]
[Black "Musil, Vojko"]
[Result "1/2-1/2"]
[WhiteElo "2520"]
[BlackElo "2400"]
[ECO "D53"]
[EventDate "1980.10.23"]
[PlyCount "67"]
[Source "Perpetual Check"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 h6 6.Bh4 O-O 7.Qc2 b6 8.Bxf6 
Bxf6 9.e4 Bb7 10.cxd5 exd5 11.e5 Be7 12.Rd1 Re8 13.Bd3 Nd7 14.O-O Nf8 15.
Ne2 Ne6 16.a3 c5 17.Bb5 Rf8 18.Qf5 Qc8 19.Kh1 Ba6 20.Bxa6 Qxa6 21.Rfe1 
Rfd8 22.Qg4 Qc8 23.Nh4 Bxh4 24.Qxh4 Nxd4 25.Nxd4 cxd4 26.Rc1 Qe6 27.Qxd4 
Rac8 28.g3 Re8 29.Rxc8 Rxc8 30.Rd1 Rc2 31.Kg2 Qf5 32.Re1 Qd7 33.Rd1 Qf5 
34.Re1 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.04"]
[Round "11"]
[White "Osterman, Rudolf"]
[Black "Nikolac, Juraj"]
[Result "0-1"]
[WhiteElo "2335"]
[BlackElo "2480"]
[ECO "D52"]
[EventDate "1980.10.23"]
[PlyCount "80"]
[Source "Perpetual Check"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.Nf3 Qa5 7.Bxf6 Nxf6 8.Bd3 
dxc4 9.Bxc4 Be7 10.O-O O-O 11.Qe2 Rd8 12.Rfd1 Bd7 13.a3 Be8 14.b4 Qc7 15.
Ne5 Bd6 16.f4 a5 17.Nd3 axb4 18.axb4 Nd5 19.Bxd5 cxd5 20.Rac1 Qe7 21.Qb2 
Rdc8 22.Ra1 h6 23.g3 Rxa1 24.Rxa1 Qc7 25.Rc1 Qe7 26.Kf2 Rc4 27.Ne2 b6 28.
Ra1 f6 29.Ra6 Bg6 30.Qb3 Qc7 31.b5 Be4 32.h4 Kh7 33.g4 e5 34.dxe5 fxe5 35.
Ra1 exf4 36.exf4 Rc2 37.Ke1 Bf3 38.Ndc1 Be4 39.Nd3 Rc4 40.f5 Qe7 0-1

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.04"]
[Round "11"]
[White "Velimirovic, Dragoljub"]
[Black "Rakic, Tomislav"]
[Result "1/2-1/2"]
[WhiteElo "2515"]
[BlackElo "2455"]
[ECO "B08"]
[EventDate "1980.10.23"]
[PlyCount "84"]
[Source "Perpetual Check"]

1.e4 g6 2.d4 Bg7 3.Nc3 c6 4.Nf3 d6 5.Be2 Nf6 6.O-O O-O 7.e5 Nd5 8.Nxd5 
cxd5 9.Bf4 dxe5 10.Bxe5 Bh6 11.c3 Nc6 12.Bg3 Bg4 13.Ne5 Nxe5 14.dxe5 Bxe2 
15.Qxe2 Qb6 16.Rad1 Rfd8 17.Rd4 Qa6 18.Qc2 Rac8 19.Qb3 Rc4 20.Rfd1 Rxd4 
21.Rxd4 Qc6 22.h3 Rd7 23.Qd1 b5 24.a3 Bg7 25.Rd3 e6 26.f4 Qc4 27.Rd4 Qa2 
28.Qe2 a6 29.Bf2 Bf8 30.Rd2 Qc4 31.Qf3 a5 32.Bd4 b4 33.axb4 axb4 34.g4 
bxc3 35.bxc3 Rb7 36.f5 Qc8 37.Rf2 Bg7 38.h4 Qb8 39.h5 Rb1+ 40.Kg2 Rb2 41.
hxg6 Rxf2+ 42.Qxf2 hxg6 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.04"]
[Round "11"]
[White "Danner, Georg"]
[Black "Speelman, Jonathan Simon"]
[Result "0-1"]
[WhiteElo "2345"]
[BlackElo "2490"]
[ECO "E92"]
[EventDate "1980.10.23"]
[PlyCount "58"]
[Source "Perpetual Check"]

1.d4 Nf6 2.c4 c5 3.d5 e5 4.Nc3 d6 5.e4 g6 6.Nf3 Bg7 7.Be2 O-O 8.Bg5 h6 9.
Bd2 a6 10.Qc1 b5 11.cxb5 axb5 12.Bxb5 Kh7 13.O-O Qb6 14.a4 Na6 15.Ne1 Nc7 
16.Bc4 Ba6 17.a5 Qb7 18.b3 Bxc4 19.bxc4 Qb3 20.Nc2 Qxc4 21.Ne3 Qa6 22.Qc2 
Rfb8 23.Rfb1 Rxb1+ 24.Rxb1 h5 25.Rb6 Qxa5 26.Rxd6 Nb5 27.Nxb5 Qxb5 28.Bc3 
Ng4 29.Nxg4 hxg4 0-1

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.04"]
[Round "11"]
[White "Kuligowski, Adam"]
[Black "Knezevic, Milorad"]
[Result "1/2-1/2"]
[WhiteElo "2405"]
[BlackElo "2490"]
[ECO "A80"]
[EventDate "1980.10.23"]
[PlyCount "46"]
[Source "Perpetual Check"]

1.d4 f5 2.Nc3 d5 3.Bg5 c6 4.e3 Qb6 5.Rb1 Nd7 6.Bd3 Ndf6 7.Nf3 e6 8.O-O g6 
9.Ne2 Bg7 10.c4 Nh6 11.Bf4 Nf7 12.Ne5 dxc4 13.Bxc4 Nd6 14.Bb3 Qd8 15.Nd3 
Nf7 16.Qc2 O-O 17.h3 Nd5 18.Bh2 Qe8 19.Rbc1 Qe7 20.a3 Bd7 21.Nc5 Bc8 22.
Nd3 Bd7 23.Nc5 Bc8 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.05"]
[Round "12"]
[White "Kovacevic, Vlatko"]
[Black "Knezevic, Milorad"]
[Result "1-0"]
[WhiteElo "2510"]
[BlackElo "2490"]
[ECO "A46"]
[EventDate "1980.10.23"]
[PlyCount "79"]
[Source "Perpetual Check"]

1.d4 Nf6 2.Nf3 d6 3.Bf4 c6 4.h3 Qb6 5.Qc1 c5 6.e3 cxd4 7.exd4 Nc6 8.c3 g6 
9.Na3 Bg7 10.Be2 O-O 11.O-O Re8 12.Re1 Be6 13.Ng5 Bd7 14.Bc4 d5 15.Bd3 Nh5
16.Be3 Bf8 17.Qd1 Nf6 18.Bf4 a6 19.Rb1 Qd8 20.Nf3 b5 21.Nc2 Ne4 22.Ne3 Be6
23.a4 bxa4 24.Qxa4 Bd7 25.Qa2 Be6 26.Ra1 Nf6 27.Qa4 Bd7 28.Qb3 Bc8 29.Ra2 
Ra7 30.Rea1 Rb7 31.Qa4 Nh5 32.Bh2 Rb6 33.Bc7 Qxc7 34.Nxd5 Qd8 35.Nxb6 Qxb6
36.d5 Bb7 37.dxc6 Bxc6 38.Qxa6 Qc7 39.Bb5 Bxf3 40.Bxe8 1-0

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.05"]
[Round "12"]
[White "Speelman, Jonathan Simon"]
[Black "Kuligowski, Adam"]
[Result "1-0"]
[WhiteElo "2490"]
[BlackElo "2405"]
[ECO "D45"]
[EventDate "1980.10.23"]
[PlyCount "63"]
[Source "Perpetual Check"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.e3 Nbd7 6.Qc2 Bd6 7.e4 dxe4 8.Nxe4 
Nxe4 9.Qxe4 e5 10.dxe5 Qe7 11.Bf4 Bb4+ 12.Bd2 Bxd2+ 13.Nxd2 Qxe5 14.O-O-O 
Qxe4 15.Nxe4 O-O 16.f4 Nb6 17.Be2 a5 18.b3 Nd7 19.Rhe1 Rb8 20.Bf3 h6 21.g3
Nf6 22.Nxf6+ gxf6 23.g4 a4 24.f5 axb3 25.axb3 Ra8 26.Kb2 Ra5 27.Rd6 Kg7 
28.Kc3 Ra2 29.h4 Rf2 30.Bd1 h5 31.Rg1 hxg4 32.Rxg4+ 1-0

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.05"]
[Round "12"]
[White "Rakic, Tomislav"]
[Black "Danner, Georg"]
[Result "1-0"]
[WhiteElo "2455"]
[BlackElo "2345"]
[ECO "A44"]
[EventDate "1980.10.23"]
[PlyCount "75"]
[Source "Perpetual Check"]

1.d4 c5 2.d5 Nf6 3.Nc3 e5 4.e4 d6 5.Be2 g6 6.Be3 Bg7 7.h4 Na6 8.h5 Nc7 9.
a4 Bd7 10.Qb1 Ng4 11.Bxg4 Bxg4 12.Nge2 f5 13.f3 f4 14.Bf2 Bd7 15.b4 b6 16.
hxg6 hxg6 17.Rxh8+ Bxh8 18.bxc5 bxc5 19.Kd2 Rb8 20.Qh1 Kf7 21.g3 fxg3 22.
Bxg3 Bg7 23.Rf1 Kg8 24.Bh4 Bf6 25.Bxf6 Qxf6 26.Qh6 Be8 27.Rh1 Bf7 28.Ng3 
Qg7 29.Qg5 Ne8 30.Rg1 Kf8 31.Nf1 Qf6 32.Qg3 Ng7 33.Ne3 Nh5 34.Qg4 Ke7 35.
Nb5 a6 36.Na7 Kf8 37.Nc6 Re8 38.Rb1 1-0

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.05"]
[Round "12"]
[White "Nikolac, Juraj"]
[Black "Velimirovic, Dragoljub"]
[Result "1/2-1/2"]
[WhiteElo "2480"]
[BlackElo "2515"]
[ECO "C28"]
[EventDate "1980.10.23"]
[PlyCount "113"]
[Source "Perpetual Check"]

1.e4 e5 2.Nc3 Nc6 3.Bc4 Nf6 4.d3 Bb4 5.Ne2 d5 6.exd5 Nxd5 7.O-O Bxc3 8.
Nxc3 Nxc3 9.bxc3 O-O 10.Qf3 Qd6 11.a4 Qg6 12.Bd5 Bd7 13.Re1 Rad8 14.Qg3 
Qxg3 15.hxg3 Rfe8 16.Bg5 Rc8 17.a5 b6 18.axb6 axb6 19.Bd2 Kf8 20.f4 f6 21.
Kf2 h6 22.Bc1 g5 23.Bb2 exf4 24.Rxe8+ Rxe8 25.gxf4 gxf4 26.Bc1 Ne5 27.Bxf4
c6 28.Bb3 h5 29.Ra7 Be6 30.Bxe5 fxe5 31.Rh7 Bd5 32.c4 Bf7 33.Rh6 e4 34.
Rxc6 e3+ 35.Ke1 Be6 36.Ba4 Bg4 37.Rf6+ Ke7 38.Bxe8 Kxf6 39.g3 Ke5 40.c3 
Kd6 41.Ba4 Ke6 42.d4 Kf6 43.Bd1 Be6 44.Bxh5 Bxc4 45.Be2 Bd5 46.Kd1 Be4 47.
c4 Kg5 48.Kc1 Bg6 49.Kd1 Be4 50.Kc1 Bg6 51.Bf3 Bd3 52.c5 bxc5 53.dxc5 Kf5 
54.Kd1 Ke5 55.Bb7 Kf5 56.Bf3 Ke5 57.c6 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.05"]
[Round "12"]
[White "Musil, Vojko"]
[Black "Osterman, Rudolf"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2335"]
[ECO "C47"]
[EventDate "1980.10.23"]
[PlyCount "29"]
[Source "Perpetual Check"]

1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4 exd4 5.Nxd4 Bb4 6.Nxc6 bxc6 7.Bd3 d5 8.
exd5 cxd5 9.O-O O-O 10.Bg5 c6 11.Qf3 h6 12.Bxf6 Qxf6 13.Qxf6 gxf6 14.Ne2 
Bd6 15.Ng3 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.05"]
[Round "12"]
[White "Plachetka, Jan"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2480"]
[BlackElo "2520"]
[ECO "E97"]
[EventDate "1980.10.23"]
[PlyCount "53"]
[Source "Perpetual Check"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 
9.Nd2 a5 10.a3 Bd7 11.b3 Nc8 12.Bb2 c5 13.dxc6 bxc6 14.b4 Rb8 15.b5 Nb6 
16.a4 Be6 17.Ba3 Bh6 18.bxc6 Rc8 19.Nd5 Rxc6 20.Nb3 Nxc4 21.Bxc4 Rxc4 22.
Bxd6 Nxd5 23.Bxf8 Bxf8 24.exd5 Bxd5 25.Re1 Qa8 26.f3 Rb4 27.Nd2 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.05"]
[Round "12"]
[White "Polajzer, Danilo"]
[Black "Supancic, Darko"]
[Result "1/2-1/2"]
[WhiteElo "2215"]
[BlackElo "2335"]
[ECO "E05"]
[EventDate "1980.10.23"]
[PlyCount "28"]
[Source "Perpetual Check"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.g3 Be7 5.Bg2 O-O 6.O-O dxc4 7.Qc2 a6 8.a4 Bd7 
9.Rd1 Bc6 10.Nc3 Bb4 11.Na2 Be7 12.Nc3 Bb4 13.Na2 Be7 14.Nc3 Bb4 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.07"]
[Round "13"]
[White "Supancic, Darko"]
[Black "Kovacevic, Vlatko"]
[Result "0-1"]
[WhiteElo "2335"]
[BlackElo "2510"]
[ECO "A87"]
[EventDate "1980.10.23"]
[PlyCount "70"]
[Source "Perpetual Check"]

1.d4 f5 2.Nf3 g6 3.g3 Bg7 4.Bg2 Nf6 5.O-O O-O 6.b3 a5 7.c4 d6 8.Bb2 c6 9.
Qc2 Na6 10.Nbd2 Bd7 11.a3 Nh5 12.h3 Qb6 13.Rad1 Rae8 14.Kh2 Qc7 15.e4 e5 
16.dxe5 dxe5 17.c5 Re7 18.Rde1 Bf6 19.b4 axb4 20.axb4 Qb8 21.Bc3 Nc7 22.
Qa2+ Kh8 23.exf5 Nd5 24.Bxe5 Rxe5 25.Nxe5 Bxe5 26.f4 Ndxf4 27.Nc4 Bc7 28.
Nd6 Bxd6 29.cxd6 Nxg2 30.Qb2+ Rf6 31.Kxg2 Qxd6 32.Qc3 gxf5 33.Rd1 Qe7 34.
g4 fxg4 35.Rxd7 Qe2+ 0-1

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.07"]
[Round "13"]
[White "Ree, Hans"]
[Black "Polajzer, Danilo"]
[Result "1-0"]
[WhiteElo "2520"]
[BlackElo "2215"]
[ECO "E13"]
[EventDate "1980.10.23"]
[PlyCount "69"]
[Source "Perpetual Check"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb4 5.Bg5 h6 6.Bh4 g5 7.Bg3 Ne4 8.Qc2 Bb7 
9.e3 d6 10.Bd3 f5 11.Qa4+ Nc6 12.Bxe4 fxe4 13.Nd2 Bxc3 14.bxc3 O-O 15.Qc2 
d5 16.f3 Na5 17.fxe4 dxc4 18.h4 g4 19.h5 Rf7 20.Bf4 Qf6 21.O-O-O c5 22.
Rdf1 Nc6 23.e5 Qg7 24.Ne4 cxd4 25.exd4 Ne7 26.Nf6+ Rxf6 27.exf6 Qxf6 28.
Qd2 Nf5 29.Be5 Qf8 30.Rf4 Qa3+ 31.Kb1 g3 32.Rh3 Kh7 33.Rxg3 Be4+ 34.Rxe4 
Nxg3 35.Bxg3 1-0

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.07"]
[Round "13"]
[White "Osterman, Rudolf"]
[Black "Plachetka, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2335"]
[BlackElo "2480"]
[ECO "D63"]
[EventDate "1980.10.23"]
[PlyCount "25"]
[Source "Perpetual Check"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.Nc3 Nbd7 5.Bg5 Be7 6.e3 O-O 7.Rc1 a6 8.cxd5 
exd5 9.Bd3 Nb6 10.Qc2 g6 11.O-O Ne8 12.Bxe7 Qxe7 13.a3 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.07"]
[Round "13"]
[White "Velimirovic, Dragoljub"]
[Black "Musil, Vojko"]
[Result "0-1"]
[WhiteElo "2515"]
[BlackElo "2400"]
[ECO "B97"]
[EventDate "1980.10.23"]
[PlyCount "94"]
[Source "Perpetual Check"]

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.Nxf6+ Bxf6 19.c4 Ra7 20.O-O Rd7 21.Qe3 
Rf7 22.Qc5 Be7 23.Qxe5 Rxf1+ 24.Bxf1 Rf8 25.Be2 Rf5 26.Bxh5+ Rxh5 27.Qxh5+
Kd8 28.Rd3+ Bd7 29.Qh8+ Kc7 30.Qd4 c5 31.Qe5+ Kc6 32.Qe4+ Kc7 33.Qf4+ Kc6 
34.Rb3 Qa5 35.Qe4+ Kd6 36.h4 Bf6 37.Rd3+ Bd4+ 38.Kh2 Ke7 39.h5 Qc7+ 40.Rg3
Be5 41.Qh7+ Kd8 42.Qd3 Bxg3+ 43.Qxg3 Be8 44.Qxc7+ Kxc7 45.g4 Kd6 46.Kg3 
Ke5 47.a3 Ke4 0-1

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.07"]
[Round "13"]
[White "Danner, Georg"]
[Black "Nikolac, Juraj"]
[Result "0-1"]
[WhiteElo "2345"]
[BlackElo "2480"]
[ECO "A85"]
[EventDate "1980.10.23"]
[PlyCount "70"]
[Source "Perpetual Check"]

1.d4 d5 2.c4 e6 3.Nc3 c6 4.e3 f5 5.Nf3 Nf6 6.Bd3 Bd6 7.O-O O-O 8.b3 Bd7 9.
Bb2 Be8 10.Ne5 Nbd7 11.Ne2 Qe7 12.f3 Rd8 13.Qc2 Kh8 14.Rae1 Bc7 15.Qc1 Bd6
16.Ng3 Nh5 17.Nxh5 Bxh5 18.Nxd7 Rxd7 19.e4 dxe4 20.fxe4 Qh4 21.e5 Bc5 22.
Rf4 Qd8 23.dxc5 Rxd3 24.Rf2 Qa5 25.Ref1 h6 26.Qf4 g5 27.Qc1 Kh7 28.h4 f4 
29.Qc2 Bg6 30.hxg5 hxg5 31.Qe2 Qxc5 32.Qg4 Qe7 33.Rf3 Kg7 34.Rxd3 Bxd3 35.
Rd1 Qc5+ 0-1

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.07"]
[Round "13"]
[White "Kuligowski, Adam"]
[Black "Rakic, Tomislav"]
[Result "1/2-1/2"]
[WhiteElo "2405"]
[BlackElo "2455"]
[ECO "A07"]
[EventDate "1980.10.23"]
[PlyCount "25"]
[Source "Perpetual Check"]

1.Nf3 Nf6 2.g3 c6 3.Bg2 d5 4.d3 g6 5.O-O Bg7 6.Nbd2 O-O 7.e4 a5 8.Re1 dxe4
9.dxe4 Na6 10.e5 Ne8 11.Qe2 Bg4 12.h3 Bxf3 13.Bxf3 1/2-1/2

[Event "Maribor it"]
[Site "Maribor YUG"]
[Date "1980.11.07"]
[Round "13"]
[White "Knezevic, Milorad"]
[Black "Speelman, Jonathan Simon"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2490"]
[ECO "E35"]
[EventDate "1980.10.23"]
[PlyCount "29"]
[Source "Perpetual Check"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 exd5 6.Bg5 h6 7.Bxf6 Qxf6 8.a3 
Bxc3+ 9.Qxc3 c6 10.e3 O-O 11.Nf3 Re8 12.Be2 Bg4 13.O-O Nd7 14.Rac1 Qe7 15.
Rfe1 1/2-1/2

