[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.22"]
[Round "1"]
[White "Smejkal, Jan"]
[Black "Langeweg, Christian"]
[Result "1-0"]
[WhiteElo "2540"]
[BlackElo "2400"]
[ECO "A29"]
[EventDate "1986.07.22"]
[PlyCount "55"]

1.c4 e5 2.g3 Nf6 3.Bg2 d5 4.cxd5 Nxd5 5.Nc3 Nb6 6.Nf3 Nc6 7.O-O Be7 8.a3 
Be6 9.d3 O-O 10.b4 Nd4 11.Bb2 Bb3 12.Qc1 Bd5 13.Nxd4 Bxg2 14.Ne6 Qd6 15.
Nxc7 Bxf1 16.Nxa8 Bh3 17.Nxb6 axb6 18.Ne4 Qd7 19.Qc3 f5 20.Nd2 Bf6 21.Rc1 
Kh8 22.Qc7 Qd5 23.Nf3 Re8 24.Bxe5 f4 25.Bxf6 gxf6 26.Qxf4 Rxe2 27.Qxf6+ 
Kg8 28.Rc7 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.22"]
[Round "1"]
[White "Geller, Efim"]
[Black "Sehner, Norbert"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2390"]
[ECO "B91"]
[EventDate "1986.07.22"]
[PlyCount "66"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.g3 Bg7 7.Bg2 O-O 8.O-O a6
9.h3 Nbd7 10.a4 Nb6 11.b3 d5 12.exd5 Nbxd5 13.Nxd5 Nxd5 14.Bb2 Nb4 15.c3 
e5 16.cxb4 exd4 17.Qd2 Be6 18.Bxb7 Bxh3 19.Rfc1 Rb8 20.Bxa6 Qd5 21.Bf1 
Bxf1 22.Rxf1 Qxb3 23.b5 Rfe8 24.Ra3 Qd5 25.Qd3 h5 26.Qb3 Qd6 27.Qf3 Rbd8 
28.Raa1 Re5 29.Rac1 h4 30.Rc6 Qb4 31.Qa3 Qd2 32.Bc1 Qe2 33.Bf4 Rf5 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.22"]
[Round "1"]
[White "Dolmatov, Sergei"]
[Black "Peelen, Piet"]
[Result "1/2-1/2"]
[WhiteElo "2510"]
[BlackElo "2395"]
[ECO "B14"]
[EventDate "1986.07.22"]
[PlyCount "103"]

1.e4 c6 2.c4 d5 3.exd5 cxd5 4.cxd5 Nf6 5.Nc3 Nxd5 6.d4 g6 7.Bc4 Nb6 8.Bb3 
Bg7 9.Nge2 O-O 10.d5 e6 11.dxe6 Qxd1+ 12.Nxd1 Bxe6 13.Bxe6 fxe6 14.Bd2 
N8d7 15.O-O Nc5 16.Bc3 Nd3 17.Bxg7 Kxg7 18.b3 Nd5 19.Nc1 Nxc1 20.Rxc1 Rac8
21.Rc4 Rxc4 22.bxc4 Nb6 23.Ne3 Rc8 24.Rb1 Kf6 25.Rb5 Rc7 26.Kf1 Nxc4 27.
Nxc4 Rxc4 28.Rxb7 Rc1+ 29.Ke2 Rc2+ 30.Ke3 Rc3+ 31.Kf4 Rc4+ 32.Kg3 Rc3+ 33.
f3 Ra3 34.Rxh7 Rxa2 35.h4 Ra3 36.Rc7 e5 37.Rc4 Kf5 38.Kh3 Re3 39.g4+ Ke6 
40.Kg2 e4 41.fxe4 Ke5 42.h5 gxh5 43.gxh5 Kf4 44.h6 Rg3+ 45.Kf2 Rf3+ 46.Ke2
Re3+ 47.Kf2 Rf3+ 48.Kg2 Rg3+ 49.Kh2 Rg6 50.e5+ Kg5 51.Kg3 Kf5+ 52.Kf3 
1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.22"]
[Round "1"]
[White "Mednis, Edmar John"]
[Black "Blees, Albert"]
[Result "1/2-1/2"]
[WhiteElo "2470"]
[BlackElo "2360"]
[ECO "A11"]
[EventDate "1986.07.22"]
[PlyCount "122"]

1.c4 Nf6 2.g3 c6 3.Bg2 d5 4.Qb3 Qb6 5.Nf3 Bf5 6.d3 e6 7.Be3 dxc4 8.dxc4 
Qxb3 9.axb3 Nbd7 10.Nbd2 Ng4 11.Bd4 e5 12.Bc3 f6 13.b4 Be6 14.O-O Nh6 15.
Ra5 Nb6 16.b3 a6 17.Ne4 Be7 18.Nc5 Bc8 19.Ne1 Nd7 20.Ncd3 Nf5 21.Nc2 O-O 
22.e4 Nd6 23.Ne3 Re8 24.Ra2 Nf8 25.Rd1 Ne6 26.f4 exf4 27.gxf4 Bf8 28.e5 
fxe5 29.fxe5 Nf7 30.Rf1 Rd8 31.Ne1 Nc7 32.Kh1 Be6 33.Nf5 Rd1 34.Nd4 Rd8 
35.Nxe6 Nxe6 36.Raf2 Nh6 37.b5 Bc5 38.Re2 axb5 39.cxb5 cxb5 40.Bxb7 b4 41.
Bb2 Ng4 42.Ba6 Bf2 43.Rexf2 Nxf2+ 44.Rxf2 Rxe1+ 45.Kg2 h6 46.Bc4 Re8 47.
Rd2 Kh8 48.Kf2 Rb1 49.Ke3 Rd8 50.Rxd8+ Nxd8 51.Bd4 Nc6 52.e6 Re1+ 53.Kf2 
Re4 54.Bc5 Ne5 55.Bd5 Nd3+ 56.Kf3 Nxc5 57.Bxe4 Nxe6 58.Bd5 Nc7 59.Bc4 g5 
60.Ke4 Kg7 61.Kd4 Kf6 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.22"]
[Round "1"]
[White "Eslon, Jaan"]
[Black "Bezemer, Arno"]
[Result "1-0"]
[WhiteElo "2415"]
[ECO "A65"]
[EventDate "1986.07.22"]
[PlyCount "53"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Bd3 Bg7 8.Nge2 O-O
9.O-O a6 10.a4 Qc7 11.Rb1 Nbd7 12.Kh1 Rb8 13.f3 c4 14.Bc2 Nc5 15.b4 cxb3 
16.Bxb3 Bd7 17.Bc2 Rfc8 18.Be3 b5 19.axb5 axb5 20.Na2 Na6 21.Bd3 Re8 22.
Qd2 Qd8 23.Nd4 Nc5 24.Nb4 Rb7 25.Nbc6 Bxc6 26.Nxc6 Qc8 27.Bxb5 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.22"]
[Round "1"]
[White "Braga, Fernando Alberto"]
[Black "Hartoch, Robert"]
[Result "1/2-1/2"]
[WhiteElo "2480"]
[BlackElo "2370"]
[ECO "C43"]
[EventDate "1986.07.22"]
[PlyCount "58"]

1.e4 e5 2.Nf3 Nf6 3.d4 exd4 4.e5 Ne4 5.Qxd4 d5 6.exd6 Nxd6 7.Bg5 Nc6 8.
Qe3+ Be7 9.Bxe7 Qxe7 10.Qxe7+ Kxe7 11.Nc3 Bg4 12.O-O-O Rae8 13.Bb5 Kd7 14.
Bxc6+ bxc6 15.Rd3 Bxf3 16.Rxf3 Re5 17.Rd1 f6 18.b3 Rhe8 19.Rd4 Kc8 20.Ra4 
Kb7 21.Rg4 R8e7 22.Na4 a5 23.Rh4 h6 24.Rc3 Nb5 25.Rc5 Re1+ 26.Kb2 Rf1 27.
Rf5 Ree1 28.Nc3 Nxc3 29.Kxc3 Re2 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.22"]
[Round "1"]
[White "Douven, Rudy"]
[Black "Gheorghiu, Florin"]
[Result "1/2-1/2"]
[WhiteElo "2415"]
[BlackElo "2555"]
[ECO "A54"]
[EventDate "1986.07.22"]
[PlyCount "40"]

1.d4 Nf6 2.c4 d6 3.Nc3 e5 4.Nf3 e4 5.Ng5 Qe7 6.h4 c6 7.Nh3 h6 8.Bf4 Nh5 9.
e3 g6 10.Be2 Nxf4 11.Nxf4 Nd7 12.Bg4 Rg8 13.Bxd7+ Bxd7 14.Qb3 O-O-O 15.a4 
g5 16.hxg5 hxg5 17.Nfe2 Bg7 18.a5 Rh8 19.Rg1 f5 20.Na4 Kc7 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.22"]
[Round "1"]
[White "Piket, Jeroen"]
[Black "Zapata Ramirez, Alonso"]
[Result "0-1"]
[WhiteElo "2390"]
[BlackElo "2495"]
[ECO "E90"]
[EventDate "1986.07.22"]
[PlyCount "90"]

1.d4 Nf6 2.c4 d6 3.Nc3 Nbd7 4.e4 e5 5.Nf3 g6 6.Be2 Bg7 7.d5 a5 8.Be3 Ng4 
9.Bg5 f6 10.Bh4 O-O 11.h3 Nh6 12.Qc2 Nc5 13.g4 Nf7 14.O-O-O Bh6+ 15.Kb1 
Bd7 16.Ne1 Bg5 17.Bxg5 fxg5 18.Ng2 Qf6 19.Rdf1 a4 20.Qd2 Ra6 21.Qe3 Qe7 
22.Rh2 Rb6 23.Ka1 Rb4 24.Ne1 Qf6 25.Nc2 Rb6 26.Rfh1 c6 27.f3 Ra8 28.Rd1 
Rba6 29.Kb1 Be8 30.Bf1 Ra5 31.Nb4 Qe7 32.Qf2 Rc8 33.h4 gxh4 34.Rxh4 Qf6 
35.Be2 Ng5 36.Rh2 Bd7 37.Qh4 Rf8 38.Qh6 Rf7 39.Rf1 Ra8 40.Rff2 Raf8 41.Nc2
Qe7 42.Ne3 Ngxe4 43.Rfg2 Nd2+ 44.Kc1 Nxf3 45.dxc6 Bxc6 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.22"]
[Round "1"]
[White "Boersma, Paulus"]
[Black "Marjanovic, Slavoljub"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2515"]
[ECO "D24"]
[EventDate "1986.07.22"]
[PlyCount "111"]

1.Nf3 d5 2.d4 Nf6 3.c4 dxc4 4.Nc3 c5 5.d5 e6 6.e4 exd5 7.e5 Nfd7 8.Bg5 Be7
9.Bxe7 Qxe7 10.Nxd5 Qd8 11.Bxc4 Nc6 12.Qc2 Qa5+ 13.Qc3 Rb8 14.Qxa5 Nxa5 
15.Bb5 a6 16.Bd3 c4 17.Bc2 Nc6 18.O-O-O O-O 19.Rhe1 h6 20.e6 fxe6 21.Rxe6 
Nc5 22.Ne7+ Kf7 23.Nxc6 Bxe6 24.Nxb8 Rxb8 25.Nd4 Rd8 26.Nxe6 Rxd1+ 27.Kxd1
Kxe6 28.Kd2 Kd5 29.Kc3 b5 30.b3 cxb3 31.axb3 a5 32.b4 axb4+ 33.Kxb4 Kc6 
34.f4 Kb6 35.g4 Na6+ 36.Kc3 Kc5 37.g5 Nc7 38.gxh6 gxh6 39.Bb3 Ne8 40.Kd3 
Nf6 41.h3 b4 42.Ke3 Kc6 43.Kd4 Kd6 44.Bc4 Nh5 45.f5 Nf4 46.h4 Ng2 47.h5 
Nf4 48.f6 Nxh5 49.f7 Ke7 50.Kc5 Nf4 51.Kxb4 h5 52.Kc3 h4 53.Kd2 h3 54.Ba6 
Ng2 55.Bb7 Kxf7 56.Ke2 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.22"]
[Round "1"]
[White "Kuijf, Marinus"]
[Black "Kremer, Mark"]
[Result "1-0"]
[WhiteElo "2430"]
[ECO "A45"]
[EventDate "1986.07.22"]
[PlyCount "47"]

1.d4 Nf6 2.Nf3 c5 3.Nc3 cxd4 4.Qxd4 Nc6 5.Qh4 e6 6.e4 Be7 7.Bg5 d6 8.O-O-O
Qa5 9.Kb1 Bd7 10.Bd2 Qc7 11.Qg3 a6 12.Qxg7 Rg8 13.Qh6 Ng4 14.Qf4 Nxf2 15.
Ng5 Rxg5 16.Qxf2 Rg6 17.Be2 Ne5 18.Bh5 Rf6 19.Qg3 Nc4 20.Qg8+ Bf8 21.Bg5 
Qb6 22.b3 Rf2 23.Rhf1 Ne5 24.Bh4 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.22"]
[Round "1"]
[White "Brenninkmeijer, Joris"]
[Black "Martinovic, Slobodan"]
[Result "0-1"]
[BlackElo "2425"]
[ECO "E81"]
[EventDate "1986.07.22"]
[PlyCount "70"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 a6 7.Qd2 c6 8.a4 a5 9.
Bd3 Na6 10.Rd1 e5 11.Nge2 exd4 12.Nxd4 Re8 13.O-O Nd7 14.Bb1 Ndc5 15.Rf2 
Qb6 16.f4 Qb4 17.f5 Nd7 18.fxg6 hxg6 19.Bh6 Ne5 20.Bxg7 Kxg7 21.Nf5+ Bxf5 
22.exf5 Rh8 23.fxg6 fxg6 24.Qg5 Rhf8 25.Qe7+ Kg8 26.Qe6+ Kg7 27.Qe7+ Kg8 
28.Qe6+ Kg7 29.Rdf1 Qc5 30.Ne4 Qe3 31.Qe7+ Rf7 32.Qxd6 Ng4 33.Ng3 Nxf2 34.
Qxg6+ Kf8 35.Qd6+ Ke8 {time} 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.22"]
[Round "1"]
[White "De Boer, Gert Jan"]
[Black "Weemaes, Ronald"]
[Result "1/2-1/2"]
[WhiteElo "2440"]
[BlackElo "2335"]
[ECO "A43"]
[EventDate "1986.07.22"]
[PlyCount "42"]

1.d4 Nf6 2.Nf3 c5 3.d5 b5 4.Bg5 Qb6 5.c3 Ne4 6.Bh4 e6 7.e3 c4 8.a4 Bb7 9.
dxe6 fxe6 10.axb5 Qxb5 11.Nbd2 Qxb2 12.Rb1 Qxc3 13.Rxb7 Bb4 14.Rxb4 Qxb4 
15.Bxc4 Nc6 16.Qc2 Nxd2 17.Nxd2 Na5 18.Qe4 Rc8 19.Be2 Rc1+ 20.Bd1 Nc4 21.
O-O Qxd2 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.22"]
[Round "1"]
[White "Pliester, Leon"]
[Black "Murey, Jacob"]
[Result "0-1"]
[WhiteElo "2380"]
[BlackElo "2490"]
[ECO "E92"]
[EventDate "1986.07.22"]
[PlyCount "72"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Nf3 e5 7.Bg5 h6 8.Bh4 exd4 
9.Nxd4 Nc6 10.Nc2 g5 11.Bg3 Qe8 12.h4 Nxe4 13.Nxe4 Qxe4 14.hxg5 hxg5 15.
Ne3 f5 16.Bf3 Qe8 17.Kf1 Nd4 18.Bd5+ Be6 19.Qd3 c6 20.Bxe6+ Qxe6 21.Re1 
Qg6 22.c5 dxc5 23.Ng4 Rae8 24.Ne5 Qd6 25.f4 Qd5 26.Rh5 gxf4 27.Bxf4 Ne6 
28.Bg3 Qxd3+ 29.Nxd3 c4 30.Ne5 c3 31.bxc3 Nc5 32.Ng6 Ne4 33.Bf4 Bxc3 34.
Re3 Rf6 35.Rh8+ Kf7 36.Rxe8 Kxe8 {time} 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.22"]
[Round "1"]
[White "Meulders, Richard"]
[Black "Rivas Pastor, Manuel"]
[Result "1-0"]
[WhiteElo "2370"]
[BlackElo "2470"]
[ECO "D91"]
[EventDate "1986.07.22"]
[PlyCount "79"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bg5 Ne4 5.cxd5 Nxc3 6.bxc3 Qxd5 7.Nf3 Bg7 8.e3
c5 9.Bb5+ Bd7 10.Bxd7+ Nxd7 11.O-O e6 12.Qa4 cxd4 13.cxd4 O-O 14.e4 Qd6 
15.Rab1 Nb6 16.Qb3 Rfc8 17.Rfd1 Rc4 18.Bd2 Rac8 19.Bb4 Qf4 20.Bc5 Bf8 21.
g3 Qf6 22.Nd2 Ra4 23.Rbc1 Ra6 24.Nf1 Qd8 25.Ne3 h5 26.f4 Qd7 27.Bxf8 Kxf8 
28.Rxc8+ Qxc8 29.f5 exf5 30.exf5 gxf5 31.Rf1 Qe6 32.Qb4+ Qe7 33.Qxe7+ Kxe7
34.Nxf5+ Ke6 35.Ng7+ Kd5 36.Rxf7 Rxa2 37.Rxb7 Kxd4 38.Nxh5 Nd5 39.Rd7 Ke4 
40.Nf4 {time} 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.22"]
[Round "1"]
[White "Piket, Marcel"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2375"]
[BlackElo "2450"]
[ECO "A48"]
[EventDate "1986.07.22"]
[PlyCount "31"]

1.d4 Nf6 2.Nf3 g6 3.Bf4 Bg7 4.e3 O-O 5.h3 d6 6.Be2 Nc6 7.O-O Qe8 8.Bh2 e5 
9.c4 exd4 10.exd4 Bf5 11.Nc3 Qd8 12.Qb3 Na5 13.Qa3 Nc6 14.Qb3 Na5 15.Qa3 
Nc6 16.Qb3 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.22"]
[Round "1"]
[White "Pieterse, Gert"]
[Black "Chiburdanidze, Maia"]
[Result "1/2-1/2"]
[WhiteElo "2265"]
[BlackElo "2435"]
[ECO "D85"]
[EventDate "1986.07.22"]
[PlyCount "84"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Nf3 c5 8.Rb1 
O-O 9.Be2 cxd4 10.cxd4 Qa5+ 11.Qd2 Qxd2+ 12.Bxd2 b6 13.d5 Na6 14.Be3 Bc3+ 
15.Bd2 Bg7 16.Be3 Bc3+ 17.Bd2 Bxd2+ 18.Nxd2 Nc5 19.f3 e6 20.Bc4 exd5 21.
Bxd5 Nd3+ 22.Ke2 Nf4+ 23.Ke3 Nxd5+ 24.exd5 Re8+ 25.Kd4 Rd8 26.Nc4 Bb7 27.
Ne3 Rd7 28.Rbd1 Rad8 29.Kc4 Rc8+ 30.Kb4 Rc5 31.Rd3 Bxd5 32.Rhd1 a5+ 33.Ka3
Be6 34.Rxd7 Bxd7 35.Rxd7 Rc3+ 36.Ka4 Rxe3 37.Rd2 Re1 38.Rb2 h5 39.Kb5 Re6 
40.Rc2 Kg7 41.a4 Rd6 42.h4 Rd4 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.23"]
[Round "2"]
[White "Zapata Ramirez, Alonso"]
[Black "Kuijf, Marinus"]
[Result "1-0"]
[WhiteElo "2495"]
[BlackElo "2430"]
[ECO "C06"]
[EventDate "1986.07.22"]
[PlyCount "80"]

1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.c3 c5 6.Bd3 Nc6 7.Ne2 Qb6 8.Nf3 cxd4
9.cxd4 f6 10.exf6 Nxf6 11.O-O Bd6 12.Nc3 Bd7 13.a3 Nxd4 14.Nxd4 Qxd4 15.
Nb5 Qe5 16.g3 Bxb5 17.Bxb5+ Ke7 18.Re1 Qh5 19.Be2 Qf7 20.Bg5 Kf8 21.Rc1 h5
22.Bd3 Kg8 23.Qc2 Rf8 24.Bg6 Qd7 25.Qe2 e5 26.Qd3 Bb8 27.Qb3 h4 28.Red1 
hxg3 29.fxg3 Qh3 30.Rc2 Rh6 31.Bxh6 Qxh6 32.Be4 Kh8 33.Bxd5 e4 34.Rf1 Rd8 
35.Bxb7 Be5 36.Qe6 Qe3+ 37.Kh1 Qd3 38.Qh3+ Kg8 39.Rc8 e3 40.Rxd8+ Qxd8 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.23"]
[Round "2"]
[White "Murey, Jacob"]
[Black "Eslon, Jaan"]
[Result "1-0"]
[WhiteElo "2490"]
[BlackElo "2415"]
[ECO "A90"]
[EventDate "1986.07.22"]
[PlyCount "99"]

1.c4 f5 2.d4 Nf6 3.g3 e6 4.Bg2 Bb4+ 5.Nd2 O-O 6.Nf3 d6 7.O-O Bxd2 8.Qxd2 
Qe7 9.b3 Ne4 10.Qc2 Nc6 11.Bb2 Bd7 12.a3 Rae8 13.d5 Nd8 14.Nd4 exd5 15.
cxd5 c5 16.dxc6 bxc6 17.e3 c5 18.Ne2 Bc6 19.Nf4 Ne6 20.b4 Nxf4 21.exf4 Qb7
22.f3 Nf6 23.bxc5 dxc5 24.Rf2 Nd5 25.Qxc5 Ne3 26.Rc1 Bd5 27.Rd2 Bxf3 28.
Bxf3 Qxf3 29.Re1 Ng4 30.Qc4+ Kh8 31.Rxe8 Rxe8 32.Bxg7+ Kxg7 33.Rd7+ Kh8 
34.Qd4+ Ne5 35.fxe5 Qe4 36.Qxe4 fxe4 37.Rxa7 Rxe5 38.Kf2 Rh5 39.h4 Rf5+ 
40.Kg2 Rf3 41.a4 Ra3 42.g4 Ra2+ 43.Kg3 e3 44.g5 h6 45.g6 Ra1 46.Kf3 Rh1 
47.a5 Rxh4 48.a6 Re4 49.Rh7+ Kg8 50.a7 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.23"]
[Round "2"]
[White "Ree, Hans"]
[Black "Pieterse, Gert"]
[Result "1-0"]
[WhiteElo "2450"]
[BlackElo "2265"]
[ECO "A90"]
[EventDate "1986.07.22"]
[PlyCount "73"]

1.c4 e6 2.Nf3 d5 3.d4 c6 4.Qc2 Bd6 5.g3 f5 6.Bg2 Nf6 7.O-O O-O 8.b3 Qe7 9.
Bb2 Bd7 10.Ne5 Be8 11.Nd2 Nbd7 12.f4 Bh5 13.cxd5 cxd5 14.Qd3 Rac8 15.Rfc1 
Ba3 16.Bxa3 Qxa3 17.Rxc8 Rxc8 18.Nxd7 Nxd7 19.Bf3 Bxf3 20.Nxf3 Nf6 21.Qb5 
b6 22.Ng5 Qd6 23.a4 h6 24.Nf3 Qc7 25.Rd1 Ne4 26.Re1 Kh7 27.Kg2 Qd8 28.Qa6 
Rc7 29.a5 Qd6 30.Ra1 Qb4 31.axb6 axb6 32.Qa8 Rc2 33.Ra7 Qb5 34.Ng1 Rxe2+ 
35.Kh3 Re1 36.Qf8 Ng5+ 37.Kh4 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.23"]
[Round "2"]
[White "Martinovic, Slobodan"]
[Black "Smejkal, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2425"]
[BlackElo "2540"]
[ECO "A07"]
[EventDate "1986.07.22"]
[PlyCount "98"]

1.Nf3 Nf6 2.g3 d5 3.Bg2 c6 4.O-O Bg4 5.b3 Nbd7 6.Bb2 Bxf3 7.Bxf3 e5 8.d3 
Bc5 9.Bg2 O-O 10.e3 Re8 11.Nd2 a5 12.a3 Qb6 13.Rb1 Rad8 14.c3 Bf8 15.Qc2 
Qa6 16.Rfd1 Nc5 17.Bf1 Qa7 18.b4 axb4 19.axb4 Na4 20.Ba1 b5 21.c4 Rb8 22.
c5 g6 23.Bg2 Bg7 24.Rf1 Qd7 25.h3 h6 26.Rbe1 Nh7 27.e4 d4 28.h4 Nf6 29.Nb3
h5 30.Bb2 Ra8 31.Ra1 Qe6 32.Na5 Bf8 33.Nb3 Ra7 34.Bc1 Rea8 35.Bd2 Ng4 36.
Bf3 Be7 37.Rab1 Bf8 38.Nc1 Qf6 39.Bg2 Bh6 40.Bxh6 Nxh6 41.Ne2 Qe6 42.Qd2 
Ng4 43.Bh3 Qf6 44.Rbc1 Qf3 45.Bg2 Qf6 46.Rc2 Kg7 47.Bh3 Qf3 48.Qd1 Qf6 49.
Qd2 Qf3 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.23"]
[Round "2"]
[White "Gheorghiu, Florin"]
[Black "Boersma, Paulus"]
[Result "1/2-1/2"]
[WhiteElo "2555"]
[BlackElo "2400"]
[ECO "E83"]
[EventDate "1986.07.22"]
[PlyCount "38"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 Nc6 7.Nge2 a6 8.a3 Bd7 
9.b4 Qb8 10.d5 Ne5 11.Nd4 c6 12.Be2 Rc8 13.O-O cxd5 14.Nxd5 Nxd5 15.cxd5 
Nc4 16.Bxc4 Rxc4 17.Rc1 Qc7 18.Qd2 Rc8 19.Ne2 Rc2 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.23"]
[Round "2"]
[White "Marjanovic, Slavoljub"]
[Black "Douven, Rudy"]
[Result "0-1"]
[WhiteElo "2515"]
[BlackElo "2415"]
[ECO "B18"]
[EventDate "1986.07.22"]
[PlyCount "54"]

1.e4 c6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.h4 h6 7.f4 e6 8.Nf3 Nd7 
9.h5 Bh7 10.Bd3 Bxd3 11.Qxd3 Ngf6 12.Bd2 Qc7 13.Qe2 c5 14.dxc5 Bxc5 15.
O-O-O Rc8 16.Kb1 O-O 17.Bc1 Bd6 18.Rh4 Rfd8 19.c4 a6 20.b3 b5 21.cxb5 Nd5 
22.Bb2 Ba3 23.Qc4 Qa5 24.Qd4 Bxb2 25.Kxb2 Nc3 26.a4 Nxd1+ 27.Qxd1 Nc5 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.23"]
[Round "2"]
[White "Chiburdanidze, Maia"]
[Black "Meulders, Richard"]
[Result "1/2-1/2"]
[WhiteElo "2435"]
[BlackElo "2370"]
[ECO "B51"]
[EventDate "1986.07.22"]
[PlyCount "80"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 d6 4.O-O Bd7 5.c3 Nf6 6.Qe2 a6 7.Ba4 e6 8.Rd1 Be7 
9.Bc2 Rc8 10.d3 O-O 11.Nbd2 Qc7 12.Nf1 h6 13.h3 Rfe8 14.Bd2 Ne5 15.Rac1 
Ng6 16.g3 e5 17.Kh2 d5 18.Ne3 Bc6 19.Nf5 Bf8 20.c4 dxc4 21.dxc4 Rcd8 22.
Bc3 b6 23.Kg1 Qb8 24.Rb1 Qc7 25.Rxd8 Rxd8 26.Re1 b5 27.b3 b4 28.Bb2 a5 29.
a4 Rd7 30.Qe3 Rd8 31.Re2 Rd7 32.Nh2 Qd8 33.Qf3 Rd2 34.Ng4 Nxg4 35.Qxg4 
Rxe2 36.Qxe2 f6 37.Ne3 Bd7 38.Qd2 Qc8 39.h4 Ne7 40.Bd1 Be6 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.23"]
[Round "2"]
[White "Blees, Albert"]
[Black "Braga, Fernando Alberto"]
[Result "0-1"]
[WhiteElo "2360"]
[BlackElo "2480"]
[ECO "A56"]
[EventDate "1986.07.22"]
[PlyCount "68"]

1.d4 Nf6 2.c4 c5 3.d5 e5 4.Nc3 d6 5.e4 Be7 6.Bd3 O-O 7.h3 Ne8 8.Nf3 Nc7 9.
g4 a6 10.a4 Nd7 11.Rg1 Nf6 12.g5 Nfe8 13.h4 g6 14.Nh2 Kh8 15.Ng4 Ng7 16.b3
f5 17.Nh6 fxe4 18.Nxe4 Bf5 19.Bb2 Bxe4 20.Bxe4 Nce8 21.Qc2 Nh5 22.Bxg6 
hxg6 23.Qxg6 Qa5+ 24.Kd1 Neg7 25.Nf7+ Kg8 26.Nh6+ Kh8 27.Ng4 Qb4 28.Ra3 
Rf3 29.Qh6+ Kg8 30.g6 Bd8 31.Ke2 Rxb3 32.Bxe5 Qxc4+ 33.Ke1 Qe4+ 34.Kd1 
Qd3+ 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.23"]
[Round "2"]
[White "Hartoch, Robert"]
[Black "De Boer, Gert Jan"]
[Result "1/2-1/2"]
[WhiteElo "2370"]
[BlackElo "2440"]
[ECO "A07"]
[EventDate "1986.07.22"]
[PlyCount "18"]

1.Nf3 Nf6 2.g3 d5 3.Bg2 g6 4.O-O Bg7 5.d3 O-O 6.Nbd2 Nc6 7.e4 e5 8.b3 Re8 
9.Bb2 a5 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.23"]
[Round "2"]
[White "Langeweg, Christian"]
[Black "Brenninkmeijer, Joris"]
[Result "1-0"]
[WhiteElo "2400"]
[ECO "E12"]
[EventDate "1986.07.22"]
[PlyCount "89"]

1.d4 e6 2.c4 Nf6 3.Nf3 b6 4.Nc3 Bb7 5.a3 d5 6.cxd5 exd5 7.g3 Be7 8.Qa4+ c6
9.Bg2 O-O 10.O-O Nbd7 11.Bf4 Re8 12.Rad1 Nh5 13.Bc1 Bd6 14.Nh4 Nhf6 15.Bg5
g6 16.e4 dxe4 17.Nxe4 Be7 18.Nc3 Nd5 19.Bxe7 Rxe7 20.Nxd5 cxd5 21.Nf3 Nf6 
22.Ne5 Qe8 23.Qb4 Nd7 24.Nd3 Qf8 25.Rfe1 Rxe1+ 26.Rxe1 a5 27.Qxf8+ Kxf8 
28.Rc1 Rc8 29.Rxc8+ Bxc8 30.Bxd5 f6 31.f3 Ke7 32.Kf2 Kd6 33.Bg8 h6 34.Ke3 
Bb7 35.Nf2 f5 36.Nd3 Nf6 37.Bc4 g5 38.Ne5 Nd5+ 39.Kd3 Ke7 40.Bxd5 Bxd5 41.
f4 b5 42.a4 bxa4 43.Nc4 Be4+ 44.Kc3 Ke6 45.Ne3 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.23"]
[Round "2"]
[White "Peelen, Piet"]
[Black "Geller, Efim"]
[Result "0-1"]
[WhiteElo "2395"]
[BlackElo "2490"]
[ECO "A11"]
[EventDate "1986.07.22"]
[PlyCount "80"]

1.g3 d5 2.Bg2 c6 3.Nf3 Bg4 4.O-O Nf6 5.c4 e6 6.Qb3 Qb6 7.Qxb6 axb6 8.d3 
Nbd7 9.Nc3 Bxf3 10.Bxf3 Ne5 11.Bh1 dxc4 12.f4 Bc5+ 13.Kg2 Neg4 14.dxc4 Ke7
15.h3 Ne3+ 16.Bxe3 Bxe3 17.Kf3 Bd4 18.Nd1 Nd7 19.e3 Bf6 20.a3 Nc5 21.Rc1 
Rhd8 22.Rc2 Rd3 23.Ke2 Rb3 24.Kd2 Rd8+ 25.Kc1 Rbd3 26.Re2 Nb3+ 27.Kc2 Nd2 
28.Nf2 Nxf1 29.Nxd3 Nxg3 30.Re1 Nf5 31.b3 Bh4 32.Re2 g5 33.Bf3 gxf4 34.
Nxf4 e5 35.Ng2 Bg5 36.Bg4 Ng3 37.Rf2 h5 38.Bd1 Ne4 39.Re2 h4 40.Ne1 Ng3 
0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.23"]
[Round "2"]
[White "Rivas Pastor, Manuel"]
[Black "Pliester, Leon"]
[Result "1-0"]
[WhiteElo "2470"]
[BlackElo "2380"]
[ECO "D27"]
[EventDate "1986.07.22"]
[PlyCount "67"]

1.Nf3 Nf6 2.c4 e6 3.Nc3 d5 4.d4 dxc4 5.e3 c5 6.Bxc4 a6 7.a4 Nc6 8.O-O cxd4
9.exd4 Be7 10.Be3 O-O 11.Qe2 b6 12.Rad1 Nb4 13.Ne5 Nfd5 14.Bc1 Bb7 15.f4 
g6 16.Ne4 f5 17.Ng5 Bxg5 18.fxg5 Qd6 19.h4 Rac8 20.h5 Kg7 21.Rf3 Ne7 22.
Rh3 Be4 23.hxg6 hxg6 24.Qf2 Rh8 25.Rh6 Ned5 26.Bxa6 Rc2 27.Bd2 Qc7 28.Qh4 
Rxd2 29.Rxd2 Qc1+ 30.Bf1 Ne3 31.Rxh8 Qxf1+ 32.Kh2 Ng4+ 33.Nxg4 Qf4+ 34.Kg1
1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.23"]
[Round "2"]
[White "Sehner, Norbert"]
[Black "Dolmatov, Sergei"]
[Result "0-1"]
[WhiteElo "2390"]
[BlackElo "2510"]
[ECO "A01"]
[EventDate "1986.07.22"]
[PlyCount "65"]

1.c4 f5 2.g3 Nf6 3.Bg2 g6 4.b3 d6 5.Bb2 e5 6.e3 Bg7 7.Ne2 O-O 8.O-O Qe7 9.
Nbc3 c6 10.d3 Be6 11.f4 Nbd7 12.Qd2 a6 13.Rae1 Rac8 14.Ba3 b5 15.fxe5 Nxe5
16.d4 Nf7 17.d5 cxd5 18.cxb5 axb5 19.Nf4 Ne4 20.Ncxd5 Bxd5 21.Nxd5 Qe5 22.
Qd3 Ra8 23.Bb4 Rxa2 24.Qxb5 Qb2 25.Nf4 Qxb3 26.Qd5 Rxg2+ 27.Kxg2 Qxb4 28.
Ne6 Qb2+ 29.Kg1 Re8 30.Nc7 Rc8 31.Rb1 Qc3 32.Rb3 Qc5 33.Rd3 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.23"]
[Round "2"]
[White "Weemaes, Ronald"]
[Black "Mednis, Edmar John"]
[Result "0-1"]
[WhiteElo "2335"]
[BlackElo "2470"]
[ECO "B31"]
[EventDate "1986.07.22"]
[PlyCount "124"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.d3 Nf6 6.Nc3 O-O 7.Re1 Nd4 8.Nxd4 
cxd4 9.Ne2 d5 10.exd5 Qxd5 11.Bc4 Qd6 12.Ng3 Bd7 13.Bg5 h6 14.Bxf6 Qxf6 
15.f4 e6 16.Qf3 Bc6 17.Ne4 Qh4 18.Qf2 Qxf2+ 19.Kxf2 Rfd8 20.Nd2 b5 21.Bb3 
Rdc8 22.Rec1 Rab8 23.a4 a6 24.axb5 axb5 25.Nf3 Ra8 26.Re1 Kf8 27.Ne5 Rxa1 
28.Rxa1 Bxe5 29.fxe5 Bd5 30.Ra5 Bxb3 31.cxb3 Rc5 32.Ra8+ Kg7 33.Rd8 Rc2+ 
34.Kf3 Rxb2 35.Rxd4 Rxb3 36.g4 g5 37.Rd7 Rb2 38.h3 Rh2 39.Kg3 Rd2 40.d4 b4
41.Kf3 Kg6 42.Rd6 Kg7 43.Rd8 Rd3+ 44.Kg2 b3 45.Rb8 Rd2+ 46.Kg3 b2 47.Kf3 
Rd3+ 48.Kg2 Rd2+ 49.Kf3 Rxd4 50.Rxb2 Rd3+ 51.Kg2 Re3 52.Rb5 Kg6 53.Rc5 h5 
54.gxh5+ Kxh5 55.Rc7 Kg6 56.Rc5 Re4 57.Kg3 Rf4 58.Rc2 Kf5 59.Re2 g4 60.
hxg4+ Rxg4+ 61.Kf3 Rf4+ 62.Kg3 Re4 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.23"]
[Round "2"]
[White "Kremer, Mark"]
[Black "Piket, Marcel"]
[Result "1-0"]
[BlackElo "2375"]
[ECO "B09"]
[EventDate "1986.07.22"]
[PlyCount "71"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.Bd3 Na6 7.O-O c5 8.d5 Rb8 
9.a4 Bg4 10.Be3 Nc7 11.Qe1 a6 12.a5 b5 13.axb6 Rxb6 14.b3 Bxf3 15.Rxf3 e6 
16.dxe6 fxe6 17.Rd1 Qe7 18.Qh4 Nfd5 19.Qxe7 Nxe7 20.Na4 Rb4 21.Bc4 Nb5 22.
Bxe6+ Kh8 23.e5 Nd4 24.Bxd4 cxd4 25.exd6 Nf5 26.d7 Rd8 27.Re1 Ne3 28.Rf2 
Rbb8 29.Rfe2 Rb7 30.c3 Bf6 31.cxd4 Nf5 32.Bxf5 gxf5 33.Re8+ Kg7 34.Rxd8 
Bxd8 35.Nc5 Rb8 36.Re8 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.23"]
[Round "2"]
[White "Bezemer, Arno"]
[Black "Piket, Jeroen"]
[Result "0-1"]
[BlackElo "2390"]
[ECO "B07"]
[EventDate "1986.07.22"]
[PlyCount "88"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Bc4 Bg7 5.Qe2 Nc6 6.e5 Ng4 7.e6 d5 8.Bxd5 Nxd4
9.Qxg4 Nxc2+ 10.Ke2 Nxa1 11.exf7+ Kf8 12.Qh4 Nc2 13.Nf3 h5 14.Rd1 Bg4 15.
Kf1 Bxf3 16.Bxf3 Nd4 17.Bxb7 Rb8 18.Bd5 c5 19.Bg5 Nf5 20.Qf4 Bd4 21.Bc4 
Qd6 22.Nb5 Qxf4 23.Bxf4 Rxb5 24.Bxb5 Kxf7 25.Bc4+ Kf6 26.b3 e5 27.Bc1 e4 
28.g3 g5 29.Bd5 Ke5 30.Bc4 Kf6 31.Bd5 Re8 32.Re1 Nd6 33.Be3 Ke5 34.Bc6 Rf8
35.Bxd4+ cxd4 36.Ke2 Rc8 37.Bd7 Rc7 38.Bh3 g4 39.Bg2 Rc2+ 40.Kd1 Rxf2 41.
Re2 Rxe2 42.Kxe2 d3+ 43.Ke3 Nf5+ 44.Kd2 Kd4 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.24"]
[Round "3"]
[White "Murey, Jacob"]
[Black "Zapata Ramirez, Alonso"]
[Result "1-0"]
[WhiteElo "2490"]
[BlackElo "2495"]
[ECO "B44"]
[EventDate "1986.07.22"]
[PlyCount "85"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nb5 d6 6.c4 Nf6 7.N1c3 a6 8.Nd4 
Bd7 9.Be2 Be7 10.O-O O-O 11.Be3 Qb8 12.f4 Rc8 13.Rc1 b5 14.cxb5 Nxd4 15.
Bxd4 axb5 16.e5 Ne8 17.Qb3 b4 18.Ne4 Bc6 19.Nxd6 Nxd6 20.exd6 Bxd6 21.Qg3 
Bf8 22.Bc4 Bb5 23.Qb3 Qb7 24.Bxb5 Qxb5 25.Rxc8 Rxc8 26.a4 Qf5 27.Qe3 Rc2 
28.h3 Qd5 29.Rf2 b3 30.Bb6 Ba3 31.bxa3 b2 32.Rxc2 Qd1+ 33.Kh2 Qxc2 34.Qe5 
f6 35.Qxe6+ Kf8 36.Ba5 b1=Q 37.Bb4+ Qxb4 38.axb4 Qxa4 39.Qd6+ Kf7 40.Qb8 
f5 41.b5 h5 42.b6 h4 43.Qa7+ 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.24"]
[Round "3"]
[White "Smejkal, Jan"]
[Black "Mednis, Edmar John"]
[Result "1/2-1/2"]
[WhiteElo "2540"]
[BlackElo "2470"]
[ECO "D19"]
[EventDate "1986.07.22"]
[PlyCount "101"]

1.c4 c6 2.d4 d5 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.e3 e6 7.Bxc4 Bb4 8.O-O O-O
9.Qe2 Nbd7 10.e4 Bg6 11.Bd3 Bh5 12.e5 Nd5 13.Nxd5 cxd5 14.Qe3 h6 15.Ne1 
Bxe1 16.Qh3 Qb6 17.Qxh5 Qxd4 18.Qd1 Bxf2+ 19.Rxf2 Kh8 20.Bf4 Nxe5 21.Bb5 
Qxd1+ 22.Rxd1 a6 23.Bxe5 axb5 24.axb5 f6 25.Bg3 Rfd8 26.Rc2 e5 27.Rc7 Rab8
28.Rdc1 d4 29.Kf1 Rd5 30.R7c5 Rbd8 31.b4 b6 32.Rxd5 Rxd5 33.Ke2 Rxb5 34.
Be1 f5 35.Kd3 Rd5 36.Rc6 e4+ 37.Kc4 Rd7 38.Rxb6 d3 39.Bd2 e3 40.Bxe3 d2 
41.Bxd2 Rxd2 42.Rg6 Kh7 43.Kc3 Re2 44.Rg3 f4 45.Rf3 g5 46.b5 Rxg2 47.b6 
Rg1 48.Kc2 Rg2+ 49.Kc3 Rg1 50.Kc2 Rg2+ 51.Kc3 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.24"]
[Round "3"]
[White "Geller, Efim"]
[Black "Martinovic, Slobodan"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2425"]
[ECO "B73"]
[EventDate "1986.07.22"]
[PlyCount "149"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 g6 7.O-O Bg7 8.Be3 
O-O 9.Qd2 Nc6 10.Rad1 Bd7 11.a4 Rc8 12.f3 Qc7 13.Rf2 Rfe8 14.Bf1 Ne5 15.
Bh6 Bxh6 16.Qxh6 Qb6 17.Nb3 Qxf2+ 18.Kxf2 Neg4+ 19.fxg4 Nxg4+ 20.Kg1 Nxh6 
21.h3 Rxc3 22.bxc3 Bxa4 23.Rd4 Bc6 24.Na5 Rc8 25.Rb4 b5 26.g4 f6 27.c4 Be8
28.cxb5 axb5 29.c4 bxc4 30.Nxc4 Nf7 31.Rb7 Kf8 32.Nb6 Rd8 33.Rc7 Ne5 34.
Nd5 Bd7 35.Kf2 Rb8 36.Be2 g5 37.Bf1 h6 38.Ra7 Rb2+ 39.Ke3 Rb3+ 40.Kf2 Rb8 
41.Be2 Re8 42.Bd1 Bc6 43.Bc2 Rb8 44.Ke3 Rb2 45.Kd2 Bxd5 46.exd5 Rb5 47.Be4
Rb3 48.Ra8+ Kg7 49.Re8 Ng6 50.Bf5 Rxh3 51.Be6 Ra3 52.Rg8+ Kh7 53.Re8 Ra7 
54.Ke3 Nf4 55.Ke4 Ne2 56.Bf5+ Kg7 57.Be6 Ra4+ 58.Ke3 Nf4 59.Rxe7+ Kf8 60.
Rf7+ Ke8 61.Rxf6 Nxe6 62.Rxe6+ Kd7 63.Rxh6 Rxg4 64.Rg6 Kc7 65.Rg8 Rg1 66.
Kf2 Rd1 67.Rxg5 Kb6 68.Ke2 Rd4 69.Ke3 Kc5 70.Rh5 Kc4 71.Rg5 Rd3+ 72.Ke2 
Kc3 73.Rh5 Rd4 74.Ke3 Rd1 75.Ke2 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.24"]
[Round "3"]
[White "Dolmatov, Sergei"]
[Black "Ree, Hans"]
[Result "1-0"]
[WhiteElo "2510"]
[BlackElo "2450"]
[ECO "B84"]
[EventDate "1986.07.22"]
[PlyCount "93"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e6 7.O-O Nbd7 8.f4 b5
9.Bf3 Bb7 10.a3 Qc7 11.Qe1 Be7 12.Kh1 O-O 13.g4 d5 14.e5 Ne4 15.Nxe4 dxe4 
16.Bxe4 Nc5 17.Bxb7 Qxb7+ 18.Kg1 Rfd8 19.c3 a5 20.Qe2 b4 21.axb4 axb4 22.
Rxa8 Qxa8 23.Qg2 Nd3 24.Qxa8 Rxa8 25.Rd1 Nxc1 26.Rxc1 Bc5 27.Kg2 h5 28.
gxh5 bxc3 29.bxc3 Bxd4 30.cxd4 Rd8 31.Rc4 Rd7 32.Kf3 Kh7 33.f5 Kh6 34.fxe6
fxe6 35.Ke4 Kxh5 36.Rc6 Re7 37.d5 exd5+ 38.Kxd5 Ra7 39.Ke6 Ra2 40.Kf7 g5 
41.h3 Ra7+ 42.Kf6 Ra3 43.e6 Rf3+ 44.Kg7 Re3 45.Rc8 Kh4 46.Rh8+ Kg3 47.Kf6 
1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.24"]
[Round "3"]
[White "Braga, Fernando Alberto"]
[Black "Douven, Rudy"]
[Result "1/2-1/2"]
[WhiteElo "2480"]
[BlackElo "2415"]
[ECO "A55"]
[EventDate "1986.07.22"]
[PlyCount "38"]

1.e4 c6 2.c4 e5 3.Nc3 Nf6 4.Nf3 d6 5.d4 Nbd7 6.Be2 Be7 7.O-O O-O 8.Qc2 Qc7
9.Bg5 Re8 10.d5 h6 11.Be3 Nf8 12.Rac1 Ng6 13.b4 Ng4 14.Bd2 Nf4 15.h3 Nxe2+
16.Nxe2 Nf6 17.Qb1 Bd7 18.Ng3 Rec8 19.Be3 cxd5 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.24"]
[Round "3"]
[White "Boersma, Paulus"]
[Black "Rivas Pastor, Manuel"]
[Result "1-0"]
[WhiteElo "2400"]
[BlackElo "2470"]
[ECO "D15"]
[EventDate "1986.07.22"]
[PlyCount "79"]

1.Nf3 d5 2.d4 Nf6 3.c4 c6 4.Nc3 a6 5.e3 b5 6.b3 Bf5 7.Ne5 h5 8.Bd3 e6 9.
O-O Be7 10.a4 b4 11.Ne2 Ng4 12.Bxf5 exf5 13.cxd5 cxd5 14.Qc2 g6 15.Bb2 O-O
16.Rac1 Bd6 17.Nf4 Nf6 18.f3 Ra7 19.Qd3 Re8 20.Nh3 Nfd7 21.Nf4 Nxe5 22.
dxe5 Bxe5 23.Bxe5 Rxe5 24.Rfd1 Rc7 25.Qd4 Rxc1 26.Rxc1 Qe8 27.Kf2 Nd7 28.
Nxd5 Qe6 29.Rc8+ Kg7 30.f4 Qxd5 31.fxe5 Qe6 32.Qd6 Nxe5 33.Qf8+ Kf6 34.Re8
Ng4+ 35.Kg3 f4+ 36.Kh4 Qd5 37.Qh8+ Kf5 38.e4+ Qxe4 39.Rxe4 g5+ 40.Kxh5 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.24"]
[Round "3"]
[White "Blees, Albert"]
[Black "Marjanovic, Slavoljub"]
[Result "1/2-1/2"]
[WhiteElo "2360"]
[BlackElo "2515"]
[ECO "E13"]
[EventDate "1986.07.22"]
[PlyCount "111"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb4 5.Bg5 h6 6.Bh4 Bb7 7.Qc2 g5 8.Bg3 Ne4 
9.Be5 f6 10.d5 fxe5 11.Qxe4 Qf6 12.h4 gxh4 13.Qxe5 Qxe5 14.Nxe5 exd5 15.
cxd5 Bxd5 16.Rxh4 Nc6 17.O-O-O Bxc3 18.bxc3 Ne7 19.e4 Be6 20.Bb5 O-O-O 21.
a4 c6 22.Bc4 Bxc4 23.Nxc4 d5 24.Ne5 dxe4 25.Rxd8+ Rxd8 26.Rxh6 Rf8 27.Nxc6
Nxc6 28.Rxc6+ Kd7 29.Rc4 Rxf2 30.Rxe4 Rxg2 31.Rc4 Kd6 32.Kb1 Kd5 33.Rc7 a5
34.Rc8 Rg4 35.Kb2 Rxa4 36.Kb3 Rh4 37.Rd8+ Kc6 38.Rc8+ Kb5 39.c4+ Ka6 40.
Rc7 Rh3+ 41.Kb2 a4 42.Rg7 Rb3+ 43.Ka2 Rc3 44.Rc7 Ka5 45.Rc6 Rh3 46.Kb2 Rh5
47.Ka2 Rh2+ 48.Ka3 Rh4 49.Ka2 Rg4 50.Ka3 Rg3+ 51.Kb2 Rf3 52.Ka2 Rb3 53.Rg6
Rc3 54.Rc6 a3 55.Rh6 Rf3 56.Rg6 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.24"]
[Round "3"]
[White "Kuijf, Marinus"]
[Black "Hartoch, Robert"]
[Result "1-0"]
[WhiteElo "2430"]
[BlackElo "2370"]
[ECO "D03"]
[EventDate "1986.07.22"]
[PlyCount "83"]

1.d4 Nf6 2.Nf3 g6 3.Bg5 Bg7 4.Nbd2 c5 5.e3 d5 6.c3 Qb6 7.Qb3 Nc6 8.Bxf6 
Bxf6 9.Qxd5 Qxb2 10.Rb1 Qxc3 11.Bc4 Be6 12.Qxc5 Bxc4 13.Qxc4 Qxc4 14.Nxc4 
Rc8 15.Rxb7 Nxd4 16.Nfd2 Nc6 17.Ke2 O-O 18.Rhb1 Rfd8 19.R1b3 Rd5 20.R3b5 
Rxb5 21.Rxb5 Kf8 22.Rb7 Bc3 23.Ne4 Nd8 24.Rxa7 Rxc4 25.Kd3 Rxe4 26.Kxe4 
Be1 27.f3 Nc6 28.Ra8+ Kg7 29.Kd5 Na5 30.Rb8 h5 31.Kc5 e6 32.Kb5 Kf6 33.Rd8
h4 34.Rd7 h3 35.gxh3 Ke5 36.Rxf7 Bd2 37.Ra7 Bxe3 38.Rxa5 Kf4 39.Ra6 e5 40.
Rxg6 Kxf3 41.h4 e4 42.h5 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.24"]
[Round "3"]
[White "Langeweg, Christian"]
[Black "Gheorghiu, Florin"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2555"]
[ECO "E91"]
[EventDate "1986.07.22"]
[PlyCount "89"]

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.
h3 exd5 10.exd5 Na6 11.Bd3 Nc7 12.a4 b6 13.Bf4 a6 14.Qd2 Rb8 15.Bg5 b5 16.
cxb5 axb5 17.Nxb5 Nxb5 18.Bxb5 Bd7 19.Bc4 Ne4 20.Bxd8 Nxd2 21.Nxd2 Rexd8 
22.Ra2 Bxb2 23.a5 Bc3 24.Rc1 Bxd2 25.Rxd2 Bb5 26.Bxb5 Rxb5 27.Ra2 Ra8 28.
a6 Ra7 29.Kf1 Kg7 30.Rc4 Rb6 31.Rca4 Kf6 32.f4 h5 33.g3 g5 34.fxg5+ Kxg5 
35.Kf2 Kf5 36.Rh4 Rbxa6 37.Rxh5+ Kg6 38.Rxa6 Rxa6 39.g4 Ra3 40.Ke2 c4 41.
Kd2 Rf3 42.Kc2 Rd3 43.Kb2 f5 44.Rxf5 Rxh3 45.Rf4 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.24"]
[Round "3"]
[White "De Boer, Gert Jan"]
[Black "Piket, Jeroen"]
[Result "0-1"]
[WhiteElo "2440"]
[BlackElo "2390"]
[ECO "E66"]
[EventDate "1986.07.22"]
[PlyCount "82"]

1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.g3 O-O 5.Bg2 d6 6.O-O Nc6 7.Nc3 a6 8.d5 Na5 
9.Nd2 c5 10.Rb1 Rb8 11.b3 b5 12.Bb2 e6 13.Ba1 Re8 14.e4 exd5 15.cxd5 Bd7 
16.Qc2 Qc8 17.Rbe1 Bh3 18.Nd1 Bxg2 19.Kxg2 Rb7 20.Ne3 Rbe7 21.f3 Nb7 22.
Bc3 Nd7 23.Bxg7 Kxg7 24.Qc3+ f6 25.g4 Ne5 26.Kg3 h5 27.h3 c4 28.b4 Nd8 29.
Re2 Rf7 30.Nb3 Qd7 31.Nd4 Rh8 32.f4 hxg4 33.hxg4 Nd3 34.f5 Kg8 35.Rh2 Rxh2
36.Kxh2 Rh7+ 37.Kg1 Rh3 38.Rf3 Qh7 39.Rxh3 Qxh3 40.Qd2 Nf7 41.Ne6 Nfe5 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.24"]
[Round "3"]
[White "Pliester, Leon"]
[Black "Bezemer, Arno"]
[Result "1-0"]
[WhiteElo "2380"]
[ECO "A02"]
[EventDate "1986.07.22"]
[PlyCount "27"]

1.f4 e5 2.fxe5 d6 3.exd6 Bxd6 4.Nf3 Nf6 5.g3 h5 6.d4 Ne4 7.Qd3 Qe7 8.Nc3 
Bf5 9.Bh3 Bh7 10.Qb5+ c6 11.Qxh5 Bxg3+ 12.hxg3 Nxg3 13.Qg4 Nxh1 14.Qxg7 
1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.24"]
[Round "3"]
[White "Meulders, Richard"]
[Black "Eslon, Jaan"]
[Result "0-1"]
[WhiteElo "2370"]
[BlackElo "2415"]
[ECO "E48"]
[EventDate "1986.07.22"]
[PlyCount "84"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Ne2 dxc4 7.Bxc4 c5 8.O-O 
cxd4 9.exd4 Nbd7 10.Qb3 Be7 11.Bf4 Nb6 12.Bd3 Bd7 13.Rac1 Bc6 14.Bb5 Qd7 
15.Bxc6 Qxc6 16.Nb5 Qe4 17.Rfe1 Nbd5 18.f3 Qg6 19.Nc7 Rad8 20.Be5 b6 21.a3
Bd6 22.Nb5 Bxe5 23.dxe5 Nd7 24.Ned4 Nc5 25.Qc2 Nd3 26.Nc6 Rd7 27.Re4 Nxc1 
28.Qxc1 a6 29.Nbd4 h5 30.b4 b5 31.h4 Ne7 32.Qc5 Nxc6 33.Qxc6 Rfd8 34.Qc3 
Qg3 35.Qa1 Rd5 36.Qc3 R5d7 37.Kf1 Qh2 38.Qb2 Rc7 39.Kf2 Rdc8 40.Ne2 Rc4 
41.Rd4 Rc2 42.Qa1 R8c4 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.24"]
[Round "3"]
[White "Piket, Marcel"]
[Black "Peelen, Piet"]
[Result "1-0"]
[WhiteElo "2375"]
[BlackElo "2395"]
[ECO "D03"]
[EventDate "1986.07.22"]
[PlyCount "48"]

1.d4 Nf6 2.Bg5 b6 3.Nf3 Bb7 4.e3 e6 5.Nbd2 Be7 6.Bd3 d5 7.Ne5 Nfd7 8.Bxe7 
Qxe7 9.f4 Nxe5 10.fxe5 O-O 11.O-O Nd7 12.Qh5 g6 13.Qh6 f6 14.exf6 Nxf6 15.
Nf3 Rae8 16.Ne5 a6 17.Rf4 g5 18.Rf2 Nd7 19.Nxd7 Rxf2 20.Qxh7+ Qxh7 21.
Bxh7+ Kxh7 22.Kxf2 Re7 23.Ne5 c5 24.Kg3 Kg7 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.24"]
[Round "3"]
[White "Pieterse, Gert"]
[Black "Brenninkmeijer, Joris"]
[Result "0-1"]
[WhiteElo "2265"]
[ECO "E42"]
[EventDate "1986.07.22"]
[PlyCount "92"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2 cxd4 6.exd4 d5 7.a3 Be7 8.c5 b6 
9.b4 O-O 10.Bf4 a5 11.Na4 Nfd7 12.Bxb8 Rxb8 13.c6 Nf6 14.b5 Bd6 15.g3 Qe7 
16.Bg2 e5 17.dxe5 Bxe5 18.Ra2 Bg4 19.O-O Rfe8 20.Qc1 Bc7 21.Nf4 Qe5 22.Nb2
Qd4 23.Nbd3 Qc4 24.Bxd5 Qxc1 25.Rxc1 g5 26.Bxf7+ Kxf7 27.Ng2 Rbd8 28.Nde1 
Rd1 29.Rxd1 Bxd1 30.Ne3 Ba4 31.Nf3 Bxb5 32.Nxg5+ Kg6 33.Nf3 Rd8 34.Rc2 Rd3
35.Rb2 Ba6 36.Nh4+ Kf7 37.Nhf5 Rxa3 38.g4 Rd3 39.g5 Nd5 40.Ng4 Rd1+ 41.Kg2
a4 42.Ngh6+ Kg6 43.h4 Nf4+ 44.Kf3 Be2+ 45.Ke3 Rd3+ 46.Ke4 Bf3# 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.24"]
[Round "3"]
[White "Weemaes, Ronald"]
[Black "Sehner, Norbert"]
[Result "0-1"]
[WhiteElo "2335"]
[BlackElo "2390"]
[ECO "B52"]
[EventDate "1986.07.22"]
[PlyCount "58"]

1.e4 c5 2.Nf3 Nf6 3.Nc3 d6 4.Bb5+ Bd7 5.Bxd7+ Nbxd7 6.Qe2 g6 7.O-O Bg7 8.
Rd1 O-O 9.d4 cxd4 10.Rxd4 Qc7 11.Bg5 h6 12.Bh4 Rac8 13.Nd2 Nb6 14.Bxf6 
Bxf6 15.Rd3 Qc5 16.Nb3 Qc4 17.Qe3 Kg7 18.Rad1 Qa6 19.Nd4 Na4 20.Nxa4 Qxa4 
21.Rb3 b6 22.a3 Rc4 23.Rbd3 Bxd4 24.Rxd4 Qxc2 25.e5 Rd8 26.exd6 Rxd6 27.
Qe5+ Rf6 28.Qe3 Re6 29.Qd2 Re2 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.24"]
[Round "3"]
[White "Kremer, Mark"]
[Black "Chiburdanidze, Maia"]
[Result "1/2-1/2"]
[BlackElo "2435"]
[ECO "C78"]
[EventDate "1986.07.22"]
[PlyCount "34"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O b5 6.Bb3 Bb7 7.d4 Nxd4 8.Nxd4 
exd4 9.e5 Ne4 10.c3 dxc3 11.Qf3 d5 12.exd6 Qf6 13.d7+ Kd8 14.Qxf6+ Nxf6 
15.Nxc3 Bd6 16.Bxf7 Kxd7 17.Re1 c5 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.25"]
[Round "4"]
[White "Zapata Ramirez, Alonso"]
[Black "Boersma, Paulus"]
[Result "1-0"]
[WhiteElo "2495"]
[BlackElo "2400"]
[ECO "B15"]
[EventDate "1986.07.22"]
[PlyCount "57"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Nxf6+ exf6 6.Bc4 Nd7 7.Ne2 Bd6 8.
O-O O-O 9.Ng3 Nb6 10.Bb3 f5 11.Re1 a5 12.a4 Nd5 13.Qf3 Qh4 14.Bxd5 cxd5 
15.Qxd5 Ra6 16.Bd2 g5 17.h3 Bxg3 18.fxg3 Qxg3 19.Ra3 Qh4 20.Rae3 Re6 21.
Bxa5 Rxe3 22.Rxe3 f4 23.Re5 h6 24.Bb4 f3 25.Bxf8 Bxh3 26.Bxh6 f2+ 27.Kf1 
Be6 28.Rxg5+ Kh7 29.Rh5 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.25"]
[Round "4"]
[White "Dolmatov, Sergei"]
[Black "Murey, Jacob"]
[Result "1/2-1/2"]
[WhiteElo "2510"]
[BlackElo "2490"]
[ECO "C10"]
[EventDate "1986.07.22"]
[PlyCount "44"]

1.e4 c5 2.Nf3 Nf6 3.Nc3 e6 4.d4 d5 5.exd5 Nxd5 6.Nxd5 Qxd5 7.Be3 Nd7 8.Be2
Be7 9.O-O O-O 10.c4 Qd6 11.Qc2 cxd4 12.Nxd4 a6 13.Rac1 Qc7 14.g3 Nf6 15.
Bf3 Re8 16.Rfe1 Bb4 17.Bd2 Bxd2 18.Qxd2 e5 19.Ne2 Bd7 20.Nc3 Bc6 21.Bxc6 
Qxc6 22.b3 Rad8 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.25"]
[Round "4"]
[White "Ree, Hans"]
[Black "Kremer, Mark"]
[Result "1-0"]
[WhiteElo "2450"]
[ECO "A17"]
[EventDate "1986.07.22"]
[PlyCount "117"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 Bb4 4.Qc2 b6 5.a3 Bxc3 6.Qxc3 Bb7 7.b4 d6 8.Bb2 
O-O 9.e3 Nbd7 10.Be2 c5 11.O-O a5 12.d3 Qe7 13.Nd2 Rfc8 14.Rfb1 e5 15.bxc5
bxc5 16.Bf3 Bxf3 17.Nxf3 Qe6 18.e4 Rcb8 19.Bc1 Qe8 20.Bd2 a4 21.Qc2 Ra6 
22.h3 Qc8 23.Kh2 Rb7 24.g3 Qb8 25.Rxb7 Qxb7 26.Rb1 Rb6 27.Rxb6 Nxb6 28.Qb2
Qc6 29.Nh4 g6 30.Ng2 Nbd7 31.Ne3 Qb6 32.Qb5 Kf8 33.Ba5 Qxb5 34.cxb5 Ke7 
35.f3 d5 36.Bc7 c4 37.dxc4 dxe4 38.b6 Nc5 39.fxe4 Ke6 40.Ng4 Nxg4+ 41.hxg4
Kd7 42.Bxe5 Kc6 43.Bd4 Kxb6 44.Kg2 Kc6 45.Kf3 Nb7 46.Ke3 Nd6 47.Kd3 f5 48.
exf5 gxf5 49.c5 Nb5 50.gxf5 Kd5 51.Bb2 Kxc5 52.Ke4 Kd6 53.g4 Ke7 54.Kd5 
Nd6 55.Bd4 Nb5 56.Bb2 Nd6 57.Be5 Nc8 58.Bd4 Kd7 59.Bc5 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.25"]
[Round "4"]
[White "Martinovic, Slobodan"]
[Black "Braga, Fernando Alberto"]
[Result "1-0"]
[WhiteElo "2425"]
[BlackElo "2480"]
[ECO "C24"]
[EventDate "1986.07.22"]
[PlyCount "45"]

1.e4 e5 2.Bc4 Nf6 3.d3 c6 4.Nf3 d6 5.O-O Be7 6.Bb3 O-O 7.c3 Nbd7 8.Re1 Qc7
9.d4 Nb6 10.Nbd2 Bg4 11.h3 Bh5 12.dxe5 dxe5 13.Nf1 Rad8 14.Qe2 Nbd7 15.Ng3
Bg6 16.Bc2 Nh5 17.Nf5 Bc5 18.N3h4 Nf4 19.Qf3 a5 20.g3 Ne6 21.Bb3 Bb6 22.
Bxe6 Bxf2+ 23.Qxf2 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.25"]
[Round "4"]
[White "Mednis, Edmar John"]
[Black "Kuijf, Marinus"]
[Result "1-0"]
[WhiteElo "2470"]
[BlackElo "2430"]
[ECO "D78"]
[EventDate "1986.07.22"]
[PlyCount "57"]

1.c4 c6 2.g3 d5 3.Bg2 Nf6 4.Qb3 g6 5.Nf3 Bg7 6.O-O O-O 7.d4 dxc4 8.Qxc4 
Be6 9.Qa4 Nbd7 10.Nc3 b5 11.Qc2 b4 12.Na4 Bd5 13.b3 Ne4 14.Bb2 Qa5 15.Ne5 
Bxe5 16.dxe5 Nec5 17.Nxc5 Nxc5 18.e4 Be6 19.Rfc1 Nd7 20.f4 Rfd8 21.Qxc6 
Rac8 22.Qxc8 Rxc8 23.Rxc8+ Nf8 24.Rc2 Nd7 25.Bd4 h5 26.Rd1 Nf8 27.Rdd2 Bd7
28.Bc5 Ne6 29.Rxd7 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.25"]
[Round "4"]
[White "Eslon, Jaan"]
[Black "Smejkal, Jan"]
[Result "1-0"]
[WhiteElo "2415"]
[BlackElo "2540"]
[ECO "C84"]
[EventDate "1986.07.22"]
[PlyCount "71"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Nc3 b5 7.Bb3 Bb7 8.d3 O-O
9.Nd5 Na5 10.Nxe7+ Qxe7 11.Nh4 Nxb3 12.Nf5 Qe6 13.axb3 d5 14.f3 g6 15.Ne3 
Rad8 16.Qe2 d4 17.Nd1 Nh5 18.Nf2 f5 19.b4 Rf7 20.Bd2 Qf6 21.Rac1 Rfd7 22.
Rfe1 Re8 23.c3 dxc3 24.Rxc3 Nf4 25.Bxf4 exf4 26.Qc2 Ree7 27.Rc5 Qd4 28.Qc3
fxe4 29.dxe4 Kf7 30.Kf1 h5 31.Ke2 Qd6 32.Rd1 Qe6 33.Nh3 Kg8 34.Nxf4 Qf7 
35.Rxd7 Rxd7 36.Nd3 {time} 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.25"]
[Round "4"]
[White "Gheorghiu, Florin"]
[Black "Meulders, Richard"]
[Result "1/2-1/2"]
[WhiteElo "2555"]
[BlackElo "2370"]
[ECO "D07"]
[EventDate "1986.07.22"]
[PlyCount "52"]

1.d4 d5 2.c4 Nc6 3.Nf3 Bg4 4.cxd5 Bxf3 5.dxc6 Bxc6 6.Nc3 e6 7.e4 Bb4 8.f3 
Qh4+ 9.g3 Qf6 10.Be3 O-O-O 11.Bg2 Ba5 12.Qd2 h6 13.O-O Bb6 14.Rad1 Ne7 15.
b4 Kb8 16.f4 Qg6 17.a4 a5 18.b5 Bd7 19.Qf2 Bc8 20.Bf3 h5 21.Kh1 f6 22.Rd2 
Qf7 23.Rfd1 Rhe8 24.Be2 Rh8 25.Bf3 Rhe8 26.Be2 Rh8 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.25"]
[Round "4"]
[White "Marjanovic, Slavoljub"]
[Black "Hartoch, Robert"]
[Result "1/2-1/2"]
[WhiteElo "2515"]
[BlackElo "2370"]
[ECO "C42"]
[EventDate "1986.07.22"]
[PlyCount "52"]

1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Nc6 7.O-O Bg4 8.Re1 
Be7 9.c4 Nf6 10.cxd5 Bxf3 11.Qxf3 Qxd5 12.Qxd5 Nxd5 13.Nc3 Ndb4 14.Be4 
Nxd4 15.Be3 Rd8 16.Bxd4 Rxd4 17.a3 Nc6 18.Nb5 Rd2 19.Rad1 Rxd1 20.Rxd1 h5 
21.Nxc7+ Kf8 22.Nd5 Rh6 23.g3 Rd6 24.Rc1 Bd8 25.Ne3 Bg5 26.Rc3 Bxe3 
1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.25"]
[Round "4"]
[White "Chiburdanidze, Maia"]
[Black "Piket, Marcel"]
[Result "1/2-1/2"]
[WhiteElo "2435"]
[BlackElo "2375"]
[ECO "B08"]
[EventDate "1986.07.22"]
[PlyCount "87"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.h3 c6 5.a4 Bg7 6.Nf3 O-O 7.Be2 Nbd7 8.Be3 e5 
9.dxe5 dxe5 10.Nd2 Qe7 11.Nb3 Ne8 12.Qd2 Nc7 13.h4 Ne6 14.h5 Rd8 15.hxg6 
hxg6 16.O-O-O Nf6 17.Bc5 Qe8 18.Qe3 Rxd1+ 19.Bxd1 Nxc5 20.Nxc5 b6 21.Nd3 
Ba6 22.Qg3 Nd7 23.Bg4 Nf8 24.Nb4 Bb7 25.Rd1 Rd8 26.Rxd8 Qxd8 27.Qe3 Qd4 
28.Nd3 Nh7 29.a5 Bf6 30.Kd1 Bd8 31.axb6 axb6 32.Qg3 Bc7 33.Bf3 Ba6 34.Be2 
Nf6 35.Qf3 Kg7 36.Kc1 Bc8 37.Qe3 c5 38.Nb5 Qxe3+ 39.fxe3 Bb8 40.Bf3 Bb7 
41.Nc3 Bd6 42.Nb5 Bb8 43.Nc3 Bd6 44.Nb5 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.25"]
[Round "4"]
[White "Douven, Rudy"]
[Black "Geller, Efim"]
[Result "1/2-1/2"]
[WhiteElo "2415"]
[BlackElo "2490"]
[ECO "D55"]
[EventDate "1986.07.22"]
[PlyCount "51"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 O-O 6.e3 h6 7.Bxf6 Bxf6 8.Rc1 c6
9.Bd3 Nd7 10.O-O dxc4 11.Bxc4 e5 12.h3 exd4 13.exd4 Nb6 14.Bb3 Re8 15.Re1 
Bf5 16.Rxe8+ Qxe8 17.Qd2 Qd7 18.Re1 a5 19.Ne4 Bxe4 20.Rxe4 a4 21.Bc2 Nc4 
22.Qb4 Nd6 23.Re2 Nb5 24.Bxa4 Nxd4 25.Nxd4 Bxd4 26.Bb3 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.25"]
[Round "4"]
[White "Piket, Jeroen"]
[Black "Langeweg, Christian"]
[Result "1/2-1/2"]
[WhiteElo "2390"]
[BlackElo "2400"]
[ECO "A47"]
[EventDate "1986.07.22"]
[PlyCount "30"]

1.d4 e6 2.Nf3 Nf6 3.e3 b6 4.Bd3 Bb7 5.Nbd2 c5 6.O-O Be7 7.Re1 d6 8.c3 cxd4
9.exd4 O-O 10.a4 a6 11.Qe2 Nbd7 12.Ne4 Nxe4 13.Bxe4 Bxe4 14.Qxe4 d5 15.Qd3
Qc7 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.25"]
[Round "4"]
[White "Brenninkmeijer, Joris"]
[Black "De Boer, Gert Jan"]
[Result "1/2-1/2"]
[BlackElo "2440"]
[ECO "D55"]
[EventDate "1986.07.22"]
[PlyCount "98"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 Be7 5.Bg5 O-O 6.e3 h6 7.Bxf6 Bxf6 8.Rc1 c6
9.Bd3 Nd7 10.O-O Qe7 11.e4 dxc4 12.Bxc4 e5 13.d5 Nb6 14.Bb3 Rd8 15.Qe2 
cxd5 16.Nxd5 Nxd5 17.Bxd5 Be6 18.Bxe6 Qxe6 19.b3 Rac8 20.Rfd1 Rxd1+ 21.
Qxd1 Rxc1 22.Qxc1 Bd8 23.Qc5 Bb6 24.Qxe5 Qc6 25.Qb8+ Kh7 26.Qf4 Qc2 27.h3 
Bxf2+ 28.Kh2 f6 29.Nd2 Bd4 30.Nc4 h5 31.Qf3 g6 32.e5 Qc1 33.Qxf6 Bg1+ 34.
Kg3 Qe1+ 35.Kf3 Qf2+ 36.Ke4 Qd4+ 37.Kf3 Qf2+ 38.Ke4 Qd4+ 39.Kf3 Qd3+ 40.
Kf4 Bh2+ 41.g3 Qxg3+ 42.Ke4 Qxh3 43.Qf7+ Kh6 44.Qf8+ Kh7 45.Qf7+ Kh6 46.e6
Qg2+ 47.Kd4 Bg1+ 48.Kc3 Qg3+ 49.Kc2 Qg2+ 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.25"]
[Round "4"]
[White "Peelen, Piet"]
[Black "Weemaes, Ronald"]
[Result "1/2-1/2"]
[WhiteElo "2395"]
[BlackElo "2335"]
[ECO "C63"]
[EventDate "1986.07.22"]
[PlyCount "63"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Nf6 6.Qe2 Qe7 7.O-O d5 8.
Nxf6+ gxf6 9.c4 dxc4 10.Qxc4 Bd7 11.d4 a6 12.Bxc6 Bxc6 13.dxe5 Bxf3 14.
exf6 Qxf6 15.Re1+ Be7 16.gxf3 O-O-O 17.Bf4 Bd6 18.Bg3 Qxf3 19.Rad1 Rhf8 
20.Rd3 Qf5 21.Red1 Bxg3 22.Rxd8+ Rxd8 23.Rxd8+ Kxd8 24.hxg3 b5 25.Qd4+ Kc8
26.Kg2 c5 27.Qd6 Kb7 28.Qe7+ Kb6 29.a3 Qd5+ 30.Kg1 Qd1+ 31.Kg2 Qd5+ 32.Kg1
1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.25"]
[Round "4"]
[White "Rivas Pastor, Manuel"]
[Black "Blees, Albert"]
[Result "0-1"]
[WhiteElo "2470"]
[BlackElo "2360"]
[ECO "E90"]
[EventDate "1986.07.22"]
[PlyCount "130"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be3 e5 7.dxe5 dxe5 8.Qxd8 
Rxd8 9.Nd5 Na6 10.O-O-O Bg4 11.c5 Nxd5 12.exd5 Nb4 13.Bc4 b5 14.Bxb5 Nxa2+
15.Kb1 Rab8 16.Kxa2 Rxb5 17.d6 cxd6 18.Rxd6 Rdb8 19.b3 e4 20.Nd4 Rxc5 21.
Rc1 Ra5+ 22.Kb1 Be5 23.Rdc6 Rd8 24.R6c4 Be2 25.Rc8 Bd3+ 26.Kb2 Rd5 27.
Rxd8+ Rxd8 28.Kc3 g5 29.g3 f5 30.f4 gxf4 31.gxf4 Bf6 32.Ra1 a6 33.Rg1+ Kf7
34.Rg3 h5 35.b4 h4 36.Rg2 Bf1 37.Rd2 Bd3 38.Rg2 Rd7 39.Rg1 Bb5 40.Rd1 Be2 
41.Rd2 Bd3 42.Rg2 Rc7+ 43.Kb3 Rc4 44.Nxf5 Rc3+ 45.Ka2 Ke6 46.Nd4+ Kd5 47.
Nf5 Bc4+ 48.Kb1 Ra3 49.Bc5 Bd3+ 50.Kc1 Bc3 51.Ne3+ Kc6 52.Nc2 Bxc2 53.Rg6+
Kb5 54.Kxc2 Kc4 55.f5 Ra2+ 56.Kd1 a5 57.Rc6 axb4 58.f6 b3 59.f7 Rd2+ 60.
Ke1 Rd7+ 61.Ke2 Rxf7 62.Be7+ Kd4 63.Bf6+ Rxf6 64.Rxf6 b2 65.Rd6+ Kc4 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.25"]
[Round "4"]
[White "Sehner, Norbert"]
[Black "Pliester, Leon"]
[Result "0-1"]
[WhiteElo "2390"]
[BlackElo "2380"]
[ECO "A36"]
[EventDate "1986.07.22"]
[PlyCount "94"]

1.c4 c5 2.g3 Nc6 3.Bg2 g6 4.Nc3 Bg7 5.a3 d6 6.e4 Nf6 7.d3 O-O 8.Nge2 Ne8 
9.O-O Nc7 10.Rb1 a5 11.Be3 Ne6 12.Nd5 Ned4 13.b4 Nxe2+ 14.Qxe2 axb4 15.
axb4 e6 16.b5 Nd4 17.Bxd4 Bxd4 18.Ne3 e5 19.h4 Ra3 20.Kh2 Be6 21.Nc2 Ra2 
22.Qd1 Qa5 23.Nxd4 cxd4 24.Bh3 Rd2 25.Qf3 Kg7 26.h5 Bxh3 27.Kxh3 Qd8 28.
Kg2 Qg5 29.Rh1 f5 30.hxg6 hxg6 31.Rh4 Qe3 32.exf5 Rxf5 33.Qxb7+ Kf6 34.Kh3
Rfxf2 35.Rh1 Qxd3 36.Qd7 Qf5+ 37.Qxf5+ Kxf5 38.Rh7 d3 39.b6 Rb2 40.b7 Ke4 
41.Rd7 d2 42.Rxd6 Rxb7 43.Rd1 Ke3 44.c5 Rb2 45.c6 Rc2 46.Kh4 Rc1 47.R6xd2 
Rc4+ 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.25"]
[Round "4"]
[White "Bezemer, Arno"]
[Black "Pieterse, Gert"]
[Result "0-1"]
[BlackElo "2265"]
[ECO "B10"]
[EventDate "1986.07.22"]
[PlyCount "80"]

1.e4 c6 2.d3 g6 3.Nf3 Bg7 4.Nbd2 e5 5.Be2 Ne7 6.O-O O-O 7.Re1 d6 8.c3 h6 
9.d4 Qc7 10.Nc4 exd4 11.Nxd4 d5 12.exd5 Nxd5 13.Bf3 Nb6 14.Nxb6 axb6 15.
Be3 Nd7 16.Qd2 Ne5 17.Bxh6 c5 18.Nc2 Nxf3+ 19.gxf3 Be6 20.a3 Bb3 21.Bf4 
Qc6 22.Re3 Qa4 23.Re4 Qc6 24.Re3 Ra4 25.Bg3 Bh6 26.f4 Bxf4 27.Bxf4 Rxf4 
28.Rg3 Qf6 29.Ne3 Be6 30.Rd1 Kg7 31.Ng2 Rf5 32.Rh3 Rg5 33.Rg3 Rd5 34.Rd3 
Rxd3 35.Qxd3 Rh8 36.Qg3 Rh5 37.Qf4 Rf5 38.Qg3 Rg5 39.Qe3 Bd5 40.f3 Qxf3 
0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.27"]
[Round "5"]
[White "Murey, Jacob"]
[Black "Mednis, Edmar John"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2470"]
[ECO "D43"]
[EventDate "1986.07.22"]
[PlyCount "51"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 d5 4.d4 c6 5.Bg5 h6 6.Bxf6 Qxf6 7.Qc2 Nd7 8.e4 
dxe4 9.Qxe4 Bb4 10.Bd3 Qe7 11.O-O Nf6 12.Qh4 c5 13.Ne4 cxd4 14.Nxd4 O-O 
15.Nxf6+ Qxf6 16.Qxf6 gxf6 17.Rfd1 f5 18.Rac1 Rd8 19.Be2 Be7 20.Nb3 b6 21.
Rxd8+ Bxd8 22.Bf3 Rb8 23.Rd1 Bf6 24.Nd4 Bb7 25.b3 Rd8 26.Bxb7 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.27"]
[Round "5"]
[White "Smejkal, Jan"]
[Black "Boersma, Paulus"]
[Result "1-0"]
[WhiteElo "2540"]
[BlackElo "2400"]
[ECO "D55"]
[EventDate "1986.07.22"]
[PlyCount "97"]

1.Nf3 d5 2.d4 Nf6 3.c4 e6 4.Nc3 Be7 5.Bg5 h6 6.Bxf6 Bxf6 7.e3 O-O 8.Rc1 c6
9.Bd3 Nd7 10.O-O Be7 11.Qc2 dxc4 12.Bxc4 b6 13.Rfd1 Bb7 14.e4 Qc7 15.Qe2 
Rac8 16.e5 Rfd8 17.a3 Nf8 18.Ba2 Rd7 19.h3 Qd8 20.Bb1 c5 21.Be4 Bxe4 22.
Qxe4 cxd4 23.Rxd4 Ng6 24.Rcd1 Rxd4 25.Nxd4 Rc4 26.Nce2 Rc5 27.f4 Rd5 28.
Kh2 Bc5 29.Nxe6 fxe6 30.Rxd5 Qxd5 31.Qxg6 Be3 32.Qc2 b5 33.Kg3 a5 34.Nc3 
Qc4 35.Qe4 Qxe4 36.Nxe4 Bc1 37.Nc3 b4 38.axb4 axb4 39.Na4 g5 40.fxg5 hxg5 
41.b3 Kf7 42.Kf3 Bf4 43.Ke4 Bd2 44.Nc5 Bc3 45.Na6 Kg6 46.Nc7 Kf7 47.Nb5 
Be1 48.Nd4 Bg3 49.Nc2 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.27"]
[Round "5"]
[White "Geller, Efim"]
[Black "Piket, Jeroen"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2390"]
[ECO "E63"]
[EventDate "1986.07.22"]
[PlyCount "110"]

1.d4 g6 2.Nf3 Bg7 3.c4 Nf6 4.g3 O-O 5.Bg2 d6 6.Nc3 Nc6 7.O-O a6 8.h3 Rb8 
9.e4 b5 10.e5 dxe5 11.dxe5 Qxd1 12.Rxd1 Nd7 13.e6 fxe6 14.cxb5 axb5 15.Be3
b4 16.Na4 Nde5 17.Ne1 b3 18.axb3 Rxb3 19.Rac1 Nb4 20.Rxc7 Ned3 21.Nxd3 
Nxd3 22.Rxe7 Bf6 23.Ra7 Nxb2 24.Nxb2 Rxb2 25.Bc5 Rf7 26.Ra8 Rc7 27.Bd6 Rc3
28.Ra7 Rbc2 29.Bf4 g5 30.Be3 Rc7 31.Ra5 h6 32.Rb1 Kg7 33.Ra8 Rb2 34.Rd1 
Bb7 35.Bxb7 Rcxb7 36.Rd6 Kf7 37.Raa6 Re7 38.Rdc6 Rbb7 39.Bb6 Re8 40.Kg2 
Rd7 41.Be3 Bd4 42.Bxd4 Rxd4 43.Rc3 Rd5 44.Ra7+ Re7 45.Ra8 Rf5 46.Rc4 Rb7 
47.Ra2 Rfb5 48.Re2 Rb2 49.Re3 Kg7 50.h4 Rf7 51.Rf3 Rxf3 52.Kxf3 Kg6 53.Re4
Rb3+ 54.Kg2 Kf5 55.Ra4 Kg6 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.27"]
[Round "5"]
[White "Martinovic, Slobodan"]
[Black "Dolmatov, Sergei"]
[Result "1/2-1/2"]
[WhiteElo "2425"]
[BlackElo "2510"]
[ECO "A07"]
[EventDate "1986.07.22"]
[PlyCount "122"]

1.Nf3 Nf6 2.g3 d5 3.Bg2 c6 4.O-O Bg4 5.b3 Nbd7 6.Bb2 Qc7 7.c4 dxc4 8.bxc4 
e5 9.d3 Bd6 10.Nbd2 O-O 11.h3 Bh5 12.g4 Bg6 13.Nh4 Rfe8 14.g5 Nh5 15.Nxg6 
hxg6 16.e3 Be7 17.h4 Rad8 18.Nb3 Nf8 19.Qe2 f6 20.gxf6 gxf6 21.d4 exd4 22.
Nxd4 Bd6 23.Qf3 Be5 24.Rab1 Rd7 25.Qg4 Rh7 26.Nf3 f5 27.Qh3 Bxb2 28.Rxb2 
Ne6 29.Rd1 Rd8 30.Rbd2 Rhd7 31.Qh2 Rxd2 32.Rxd2 Rxd2 33.Nxd2 Qxh2+ 34.Kxh2
Kf7 35.Bf3 Nf6 36.Nb3 Ke7 37.Kg3 Kd6 38.a3 Ke5 39.Kg2 Ne4 40.Kf1 Nd6 41.
Na5 Nc5 42.Bd1 Nde4 43.Bc2 Kd6 44.f3 Nf6 45.Nb3 Nxb3 46.Bxb3 Kc5 47.Kf2 a5
48.Kg3 Nh5+ 49.Kf2 Ng7 50.Kg3 Kd6 51.Bc2 Nh5+ 52.Kf2 Nf6 53.Kg3 Ke5 54.Bd3
Ne8 55.f4+ Kf6 56.e4 fxe4 57.Bxe4 Nd6 58.Bd3 b5 59.cxb5 cxb5 60.Kf3 b4 61.
axb4 axb4 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.27"]
[Round "5"]
[White "Eslon, Jaan"]
[Black "Zapata Ramirez, Alonso"]
[Result "0-1"]
[WhiteElo "2415"]
[BlackElo "2495"]
[ECO "B44"]
[EventDate "1986.07.22"]
[PlyCount "82"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e6 5.Nb5 d6 6.c4 Nf6 7.N1c3 a6 8.Nd4 
Bd7 9.Be2 Be7 10.Be3 Rc8 11.Rc1 O-O 12.O-O Re8 13.b3 Bf8 14.Qd2 Ne5 15.h3 
Ng6 16.Rfd1 Qc7 17.Bf1 b6 18.Qb2 Qb7 19.Qb1 h6 20.g3 Rc7 21.Bg2 Qc8 22.a4 
d5 23.exd5 e5 24.Nc6 Bxh3 25.Qd3 Bc5 26.Bxc5 bxc5 27.Ne4 Bxg2 28.Nxf6+ 
gxf6 29.Kxg2 Qg4 30.Kf1 e4 31.Qe3 f5 32.Ke1 f4 33.gxf4 Nxf4 34.Kd2 Ng2 35.
Qxc5 e3+ 36.fxe3 Rxe3 37.Kc2 Re2+ 38.Kc3 Rb7 39.Qd4 Re4 40.Qf6 Re3+ 41.Kc2
Qe4+ 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.27"]
[Round "5"]
[White "Braga, Fernando Alberto"]
[Black "Langeweg, Christian"]
[Result "1-0"]
[WhiteElo "2480"]
[BlackElo "2400"]
[ECO "C01"]
[EventDate "1986.07.22"]
[PlyCount "41"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.exd5 exd5 5.Bd3 Nc6 6.a3 Bxc3+ 7.bxc3 Nge7 8.
Qf3 Be6 9.Rb1 Na5 10.Nh3 Qd7 11.Ng5 h6 12.Nxe6 Qxe6+ 13.Kd1 O-O 14.Re1 Qd7
15.Qg3 Ng6 16.f4 Rfe8 17.Rxe8+ Rxe8 18.f5 Nf8 19.Bxh6 f6 20.Rb5 b6 21.Rxa5
1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.27"]
[Round "5"]
[White "Douven, Rudy"]
[Black "Ree, Hans"]
[Result "0-1"]
[WhiteElo "2415"]
[BlackElo "2450"]
[ECO "D27"]
[EventDate "1986.07.22"]
[PlyCount "74"]

1.Nf3 d5 2.d4 Nf6 3.c4 dxc4 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.Ne5 Ra7 17.Ne4 Rc7 18.Ra3 f5 19.Rh3 Rxc1 20.Rxc1 Nf4 21.Qf3 Nxh3+ 
22.Qxh3 fxe4 23.Bxe4 h6 24.Ng6 Re8 25.Qh5 Nd5 26.Ne5 Rf8 27.Qg6 Nf6 28.Ng4
Nxe4 29.Nxh6+ Kh8 30.Nf7+ Rxf7 31.Qxf7 Bg5 32.Rc7 Bh6 33.Ra7 Qxd4 34.g3 
Nxf2 35.Ra8 Ng4+ 36.Kg2 Ne3+ 37.Kf2 Qd2+ {time} 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.27"]
[Round "5"]
[White "Blees, Albert"]
[Black "Chiburdanidze, Maia"]
[Result "1/2-1/2"]
[WhiteElo "2360"]
[BlackElo "2435"]
[ECO "D89"]
[EventDate "1986.07.22"]
[PlyCount "137"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Be3
c5 9.Ne2 Nc6 10.O-O Bg4 11.f3 Na5 12.Bd3 cxd4 13.cxd4 Be6 14.d5 Bxa1 15.
Qxa1 f6 16.Rb1 Bd7 17.e5 Bf5 18.Bxf5 gxf5 19.exf6 Rxf6 20.Nf4 Rc8 21.Bd4 
Rf7 22.Rb5 Qc7 23.Rc5 Qxf4 24.Rxc8+ Rf8 25.Qc3 Rxc8 26.Qxc8+ Kf7 27.Qe6+ 
Ke8 28.Be3 Qc4 29.Qxf5 Qxa2 30.h4 Nc4 31.Bd4 Nd6 32.Qxh7 Qxd5 33.Bxa7 Nf5 
34.Qg6+ Kd7 35.h5 Qe5 36.Bf2 Qf4 37.Qg4 e5 38.g3 Qxg4 39.fxg4 Nd6 40.g5 
Ke6 41.g6 Kf6 42.Bb6 Nc4 43.Bd8+ Kg7 44.g4 Ne3 45.Kf2 Nxg4+ 46.Kg3 Nf6 47.
Kh4 b5 48.Kg5 Ne4+ 49.Kf5 Ng3+ 50.Kg4 Ne4 51.Be7 Nf6+ 52.Kg5 Ne4+ 53.Kf5 
Ng3+ 54.Kg4 Ne4 55.Ba3 Nf6+ 56.Kg5 Ne4+ 57.Kf5 Ng3+ 58.Kg4 Ne4 59.Bb2 Kf6 
60.Kf3 Nd2+ 61.Ke2 Nc4 62.Bc3 Kg7 63.Kd3 Kh6 64.Bb4 Kg7 65.Ke4 Kf6 66.Bc3 
Nd6+ 67.Kd5 Ne8 68.Bxe5+ Kg5 69.Ke6 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.27"]
[Round "5"]
[White "Kuijf, Marinus"]
[Black "Meulders, Richard"]
[Result "1/2-1/2"]
[WhiteElo "2430"]
[BlackElo "2370"]
[ECO "B47"]
[EventDate "1986.07.22"]
[PlyCount "173"]

1.e4 c5 2.Ne2 Nc6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Qc7 6.g3 a6 7.Bg2 Nf6 8.O-O 
Be7 9.Re1 Nxd4 10.e5 Nb5 11.exf6 gxf6 12.Nxb5 axb5 13.Qg4 Bf8 14.c3 h5 15.
Qe2 h4 16.Be3 hxg3 17.hxg3 Bc5 18.Qxb5 Bxe3 19.Rxe3 Ra5 20.Qb4 b6 21.Qe4 
Rah5 22.Rd1 Kd8 23.c4 f5 24.Qe5 Qxe5 25.Rxe5 f4 26.gxf4 Rh4 27.Rd4 Rg8 28.
Kf1 Rgg4 29.b3 Rxf4 30.Rxf4 Rxf4 31.Ke2 d6 32.Rg5 Kc7 33.Ke3 e5 34.Rg3 Be6
35.Rg8 Rg4 36.Rxg4 Bxg4 37.Bd5 f6 38.Kd3 Bd7 39.b4 b5 40.Kc3 Bc6 41.Be6 
Kb6 42.cxb5 Bxb5 43.Bb3 Kc6 44.a4 Bf1 45.Bf7 d5 46.Be8+ Kb6 47.a5+ Ka6 48.
Kb3 Bb5 49.Bf7 d4 50.Bg6 Ka7 51.Bf5 Kb7 52.Kc2 Bc4 53.Be4+ Ka7 54.Kd2 Kb8 
55.Kc1 Bb5 56.Kc2 Bc4 57.Kd2 Kc7 58.Kc2 Kb8 59.Kb2 Ka7 60.Bc6 Ka6 61.Kc2 
Be2 62.Be4 Ka7 63.Bd3 Bf3 64.Bc4 e4 65.b5 f5 66.Bd5 f4 67.Kb3 d3 68.Kc3 
Bg2 69.Bc6 Bf3 70.Kd2 Bg2 71.Be8 Bf3 72.Bf7 Kb7 73.Be6 Ka7 74.Bc8 Kb8 75.
Bf5 Ka7 76.Kc3 Kb7 77.Bh7 Ka7 78.Bg6 Kb7 79.Bf5 Kc7 80.b6+ Kb7 81.Be6 Bg2 
82.Bg4 e3 83.fxe3 fxe3 84.Kxd3 Ka6 85.Kxe3 Kxa5 86.Bf3 Kxb6 87.Bxg2 
1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.27"]
[Round "5"]
[White "Hartoch, Robert"]
[Black "Piket, Marcel"]
[Result "1-0"]
[WhiteElo "2370"]
[BlackElo "2375"]
[ECO "B08"]
[EventDate "1986.07.22"]
[PlyCount "122"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Be3 c6 5.h3 Bg7 6.a4 O-O 7.Nf3 a5 8.Be2 Na6 9.
O-O Qc7 10.Qd2 Re8 11.Rfd1 Nb4 12.Rac1 e5 13.dxe5 dxe5 14.Bc5 Bf8 15.Bxf8 
Kxf8 16.Qh6+ Kg8 17.Rd2 Be6 18.Rcd1 Rad8 19.Ng5 Rxd2 20.Rxd2 Qe7 21.Nd1 
Rd8 22.Nxe6 fxe6 23.c3 Na6 24.Bxa6 bxa6 25.f3 Nh5 26.Nf2 Nf4 27.Rxd8+ Qxd8
28.g3 Nh5 29.Kg2 c5 30.Qe3 c4 31.h4 Qb8 32.Qc5 Qxb2 33.Qxe5 Ng7 34.Qxa5 h5
35.Qe5 Kh7 36.a5 Qa2 37.Qc5 Qa4 38.Qb6 Qa3 39.Qb4 Qa2 40.Qb6 Qa3 41.Qxa6 
Qxc3 42.Qb5 Qd4 43.a6 c3 44.Qc6 Qd2 45.a7 c2 46.a8=Q c1=Q 47.Qxc1 Qxc1 48.
Qa2 g5 49.hxg5 Qxg5 50.f4 Qc5 51.Nh3 Qe3 52.Ng5+ Kg6 53.Qf2 Qd3 54.Kh3 Qc4
55.Qf3 Qa6 56.Qd1 Qc4 57.Kh4 Qa2 58.f5+ Kh6 59.f6 Qh2+ 60.Nh3 Qg2 61.Qc1+ 
Kh7 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.27"]
[Round "5"]
[White "Brenninkmeijer, Joris"]
[Black "Sehner, Norbert"]
[Result "1-0"]
[BlackElo "2390"]
[ECO "D46"]
[EventDate "1986.07.22"]
[PlyCount "57"]

1.d4 d5 2.Nf3 c6 3.c4 e6 4.Nbd2 Nf6 5.e3 Nbd7 6.Bd3 Bd6 7.O-O O-O 8.e4 
dxe4 9.Nxe4 Nxe4 10.Bxe4 f5 11.Bc2 c5 12.Qe2 Qf6 13.Bg5 Qg6 14.dxc5 Nxc5 
15.Rad1 Ne4 16.Rxd6 Nxd6 17.Be7 Nf7 18.Ba4 b5 19.Bxb5 Bb7 20.Bxf8 Rxf8 21.
c5 Be4 22.Bd3 Bxf3 23.Qxf3 Qf6 24.Qe2 f4 25.Be4 Qd4 26.Rc1 Rd8 27.c6 Nd6 
28.c7 Rc8 29.Bb7 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.27"]
[Round "5"]
[White "De Boer, Gert Jan"]
[Black "Kremer, Mark"]
[Result "1-0"]
[WhiteElo "2440"]
[ECO "E12"]
[EventDate "1986.07.22"]
[PlyCount "83"]

1.d4 Nf6 2.Nf3 e6 3.c4 b6 4.a3 c5 5.d5 Ba6 6.Qc2 exd5 7.cxd5 g6 8.Nc3 Bg7 
9.g3 O-O 10.Bg2 d6 11.O-O Nbd7 12.Re1 Re8 13.h3 Qc7 14.a4 Re7 15.Bf4 Rae8 
16.e4 Nh5 17.Bg5 f6 18.Bd2 Bh8 19.g4 Ng7 20.Nb5 Qb8 21.b4 Bc8 22.bxc5 dxc5
23.d6 Rf7 24.Nc7 Rd8 25.g5 Ne5 26.gxf6 Nxf3+ 27.Bxf3 Rxf6 28.Qb3+ Ne6 29.
e5 Rxf3 30.Qxf3 Nxc7 31.dxc7 Qxc7 32.Bg5 Re8 33.Bf6 Qf7 34.Rad1 Bb7 35.Qc3
Rf8 36.Rd6 Qa2 37.Red1 Qe2 38.Rd8 Bxf6 39.exf6 Qe4 40.f7+ Kxf7 41.Rxf8+ 
Kxf8 42.Qf6+ 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.27"]
[Round "5"]
[White "Pliester, Leon"]
[Black "Gheorghiu, Florin"]
[Result "1/2-1/2"]
[WhiteElo "2380"]
[BlackElo "2555"]
[ECO "E70"]
[EventDate "1986.07.22"]
[PlyCount "49"]

1.d4 Nf6 2.c4 c5 3.d5 d6 4.Nc3 g6 5.e4 Bg7 6.Bd3 O-O 7.Nge2 e6 8.O-O exd5 
9.exd5 Ng4 10.Ng3 f5 11.Nce2 Na6 12.a3 Qh4 13.h3 Ne5 14.f4 Nxd3 15.Qxd3 
Bd7 16.Rb1 Rae8 17.b4 b6 18.b5 Nc7 19.Bb2 Rf7 20.Bxg7 Rxg7 21.a4 Rge7 22.
Rf3 Qf6 23.Qc3 Qxc3 24.Nxc3 Re1+ 25.Kf2 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.27"]
[Round "5"]
[White "Peelen, Piet"]
[Black "Rivas Pastor, Manuel"]
[Result "1/2-1/2"]
[WhiteElo "2395"]
[BlackElo "2470"]
[ECO "C02"]
[EventDate "1986.07.22"]
[PlyCount "79"]

1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Nge7 6.Na3 cxd4 7.cxd4 Nf5 8.Nc2 
Bd7 9.Be2 Be7 10.O-O O-O 11.Bd2 Rc8 12.Bc3 b5 13.Qd2 Qb6 14.b4 Rc7 15.a4 
a6 16.axb5 axb5 17.Ra3 Ra7 18.Rfa1 Rfa8 19.Rxa7 Rxa7 20.Rxa7 Nxa7 21.g4 
Nh4 22.Nxh4 Bxh4 23.Ne1 Nc6 24.Kg2 Be7 25.f4 Qa7 26.Bxb5 Nxe5 27.dxe5 Bxb5
28.Nf3 Qa6 29.Bd4 Bd3 30.Bc5 Bxc5 31.bxc5 Be4 32.Kf2 Bxf3 33.Kxf3 Qa3+ 34.
Qe3 Qxe3+ 35.Kxe3 Kf8 36.Kd4 Ke8 37.c6 Kd8 38.Kc5 Kc7 39.h4 g6 40.g5 
1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.27"]
[Round "5"]
[White "Pieterse, Gert"]
[Black "Marjanovic, Slavoljub"]
[Result "1/2-1/2"]
[WhiteElo "2265"]
[BlackElo "2515"]
[ECO "D32"]
[EventDate "1986.07.22"]
[PlyCount "201"]

1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 cxd4 5.Qa4+ Bd7 6.Qxd4 exd5 7.Nf3 Nc6 8.
Qd1 Nf6 9.e3 Bg4 10.Be2 Bc5 11.O-O O-O 12.Nd4 Bxe2 13.Ncxe2 Qd6 14.Nxc6 
bxc6 15.b3 Rfe8 16.Ng3 Bb6 17.Bb2 Bc7 18.Qf3 Ne4 19.Qh5 Nxg3 20.hxg3 Re6 
21.Rfd1 Qe7 22.Rac1 Re8 23.Rd4 Be5 24.Rh4 h6 25.Bxe5 Rxe5 26.Qf3 c5 27.Rd1
Rd8 28.Ra4 d4 29.exd4 Red5 30.Qf4 Qd7 31.Rc4 cxd4 32.Qc7 Qe6 33.Qxa7 d3 
34.Qe3 Re5 35.Rxd3 Ra8 36.Qd2 Kh7 37.Re3 Rxe3 38.fxe3 Qe5 39.Kh2 Ra6 40.
Rf4 Rg6 41.Qf2 Qh5+ 42.Rh4 Qg5 43.Qf3 Qe7 44.Rf4 Kg8 45.Qa8+ Kh7 46.Qe4 
Qd7 47.Qf5 Qa7 48.Rg4 Qxe3 49.Rxg6 fxg6 50.Qd5 h5 51.a4 g5 52.a5 h4 53.
gxh4 gxh4 54.Qh5+ Kg8 55.Qd5+ Kh7 56.Qh5+ Kg8 57.Qxh4 Qe5+ 58.Kg1 Qa1+ 59.
Kf2 Qa2+ 60.Kf1 Qxb3 61.Qd8+ Kh7 62.Qd2 Qc4+ 63.Kf2 Qc5+ 64.Kf3 Qf5+ 65.
Kg3 Qe5+ 66.Kh4 Qe4+ 67.Kh3 Qf5+ 68.Kh4 Qe4+ 69.g4 Qh1+ 70.Kg3 Qg1+ 71.Kh3
Qf1+ 72.Kh2 Qc4 73.Kg3 Qc7+ 74.Kh3 Qc4 75.Qe3 Qf1+ 76.Kg3 Qc4 77.Qe5 Qd3+ 
78.Kh4 Qd8+ 79.g5 Qa8 80.Qf5+ g6 81.Qd7+ Kg8 82.Qe6+ Kh7 83.a6 Qa7 84.Kh3 
Qc7 85.Kg4 Kg7 86.Qf6+ Kh7 87.Kf3 Qd7 88.Ke3 Qd5 89.Qe7+ Kg8 90.Qe8+ Kh7 
91.Qe7+ Kg8 92.a7 Qb3+ 93.Kd4 Qa4+ 94.Kd5 Qa2+ 95.Ke5 Qe2+ 96.Kd6 Qa6+ 97.
Kd5 Qd3+ 98.Ke6 Qa6+ 99.Kd5 Qd3+ 100.Ke6 Qe4+ 101.Kd6 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.27"]
[Round "5"]
[White "Weemaes, Ronald"]
[Black "Bezemer, Arno"]
[Result "0-1"]
[WhiteElo "2335"]
[ECO "B04"]
[EventDate "1986.07.22"]
[PlyCount "100"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.exd6 cxd6 6.Nc3 g6 7.Be3 Bg7 8.Be2 
O-O 9.Nf3 Nc6 10.O-O Bg4 11.b3 d5 12.c5 Nc8 13.Rb1 e6 14.b4 a6 15.a4 N8e7 
16.b5 axb5 17.axb5 Na5 18.Nd2 Bxe2 19.Qxe2 Nf5 20.Rb4 Re8 21.f4 Nc4 22.
Nxc4 dxc4 23.Rxc4 Nxd4 24.Bxd4 Bxd4+ 25.Kh1 Bxc3 26.Rxc3 Qf6 27.Qe5 Qxe5 
28.fxe5 Ra5 29.Rb1 Rd8 30.h3 Rd5 31.c6 bxc6 32.bxc6 Rac5 33.Rbc1 Rd1+ 34.
Rxd1 Rxc3 35.Rd8+ Kg7 36.Rc8 Rc5 37.c7 Kh6 38.Kh2 Kg5 39.Rh8 Rxc7 40.Rxh7 
Kf5 41.g4+ Kxe5 42.g5 Kf4 43.h4 e5 44.Kg2 e4 45.Kf2 e3+ 46.Ke2 Rc2+ 47.Ke1
Rc7 48.Ke2 Ke4 49.Rh8 Rc2+ 50.Kd1 Ra2 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.28"]
[Round "6"]
[White "Zapata Ramirez, Alonso"]
[Black "Martinovic, Slobodan"]
[Result "1/2-1/2"]
[WhiteElo "2495"]
[BlackElo "2425"]
[ECO "B42"]
[EventDate "1986.07.22"]
[PlyCount "49"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Nf6 6.O-O Qc7 7.Qe2 d6 8.c4 Be7
9.b3 Nc6 10.Bb2 Bd7 11.Nd2 O-O 12.Rac1 Nxd4 13.Bxd4 Bc6 14.Qe3 Nd7 15.Qg3 
e5 16.Bb2 a5 17.Bb1 Nc5 18.f4 f6 19.Kh1 b5 20.cxb5 Bxb5 21.Rfd1 Qb7 22.f5 
Rfd8 23.Ba3 Rac8 24.Qe3 d5 25.Bxc5 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.28"]
[Round "6"]
[White "Ree, Hans"]
[Black "Murey, Jacob"]
[Result "1/2-1/2"]
[WhiteElo "2450"]
[BlackElo "2490"]
[ECO "E83"]
[EventDate "1986.07.22"]
[PlyCount "66"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 Nc6 7.Nge2 a5 8.d5 Ne5 
9.Nc1 e6 10.Be2 Ne8 11.O-O f5 12.f4 Nf7 13.exf5 exf5 14.Bf3 Nf6 15.Nb3 Re8
16.Qd2 Nh6 17.Rae1 a4 18.Nd4 Nhg4 19.Kh1 Nxe3 20.Rxe3 Rxe3 21.Qxe3 Qe8 22.
Qd2 Qf7 23.Re1 Bd7 24.Ncb5 Bxb5 25.cxb5 Nd7 26.Ne6 Re8 27.Rc1 Nc5 28.Nxc5 
dxc5 29.d6 Bd4 30.Rxc5 Bxc5 31.Bd5 Re1+ 32.Qxe1 Qxd5 33.Qe8+ Kg7 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.28"]
[Round "6"]
[White "Mednis, Edmar John"]
[Black "Dolmatov, Sergei"]
[Result "1/2-1/2"]
[WhiteElo "2470"]
[BlackElo "2510"]
[ECO "A30"]
[EventDate "1986.07.22"]
[PlyCount "52"]

1.c4 c5 2.Nf3 Nf6 3.g3 e6 4.Bg2 Be7 5.O-O O-O 6.Nc3 a6 7.b3 Qc7 8.d4 cxd4 
9.Qxd4 d6 10.Rd1 Rd8 11.Bb2 Bd7 12.e4 Be8 13.e5 Nc6 14.exd6 Rxd6 15.Qe3 
Rad8 16.Rxd6 Qxd6 17.Rd1 Qc7 18.Rxd8 Qxd8 19.Ne5 Qd6 20.Nxc6 Bxc6 21.Bxc6 
Qxc6 22.Ne2 h6 23.Nd4 Qd7 24.Kg2 Bc5 25.Qe5 Bd6 26.Qe2 Bc5 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.28"]
[Round "6"]
[White "Braga, Fernando Alberto"]
[Black "Geller, Efim"]
[Result "0-1"]
[WhiteElo "2480"]
[BlackElo "2490"]
[ECO "C89"]
[EventDate "1986.07.22"]
[PlyCount "84"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d5 
9.exd5 Nxd5 10.Nxe5 Nxe5 11.Rxe5 c6 12.g3 Bf6 13.Re1 c5 14.d4 Bb7 15.dxc5 
Re8 16.Nd2 Nxc3 17.bxc3 Bxc3 18.c6 Bxc6 19.Rxe8+ Qxe8 20.Rb1 Rd8 21.Qc2 
Bxd2 22.Bxd2 Be4 23.Bxf7+ Kxf7 24.Qb3+ Bd5 25.Qb4 Qe4 26.Qxe4 Bxe4 27.Rb2 
Rd4 28.h3 Bd5 29.Rc2 Ra4 30.Rc7+ Ke6 31.g4 Rxa2 32.Be3 b4 33.Bd4 g5 34.
Rxh7 Rd2 35.Bh8 Rd1+ 36.Kh2 Rh1+ 37.Kg3 Rg1+ 38.Kh2 Rg2+ 39.Kh1 Rxg4+ 40.
Kh2 Rh4 41.Rxh4 gxh4 42.f4 a5 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.28"]
[Round "6"]
[White "Gheorghiu, Florin"]
[Black "Blees, Albert"]
[Result "1/2-1/2"]
[WhiteElo "2555"]
[BlackElo "2360"]
[ECO "E82"]
[EventDate "1986.07.22"]
[PlyCount "31"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 b6 7.Bd3 a6 8.Nge2 c5 9.
e5 Nfd7 10.exd6 cxd4 11.Nxd4 Nc5 12.Nb3 Nxd3+ 13.Qxd3 Nc6 14.O-O Ne5 15.
Qe2 Be6 16.Nd5 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.28"]
[Round "6"]
[White "Chiburdanidze, Maia"]
[Black "Douven, Rudy"]
[Result "1/2-1/2"]
[WhiteElo "2435"]
[BlackElo "2415"]
[ECO "E54"]
[EventDate "1986.07.22"]
[PlyCount "37"]

1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 e6 6.Nf3 Bb4 7.Bd3 O-O 8.O-O 
dxc4 9.Bxc4 b6 10.Qe2 Bb7 11.Bg5 Bxc3 12.bxc3 Nbd7 13.Bd3 Qc7 14.Rac1 Rfe8
15.Rfe1 Rac8 16.c4 Qd6 17.Rcd1 h6 18.Bc1 Qc7 19.Ne5 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.28"]
[Round "6"]
[White "Piket, Jeroen"]
[Black "Smejkal, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2390"]
[BlackElo "2540"]
[ECO "D91"]
[EventDate "1986.07.22"]
[PlyCount "89"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.cxd5 Nxg5 7.Nxg5 e6 8.Qd2 
exd5 9.Qe3+ Kf8 10.Qf4 Bf6 11.h4 h6 12.Nf3 Be6 13.e3 c6 14.Bd3 Nd7 15.Ne2 
Qb8 16.Rc1 Kg7 17.Qxb8 Raxb8 18.Nf4 Rhe8 19.Kd2 Rbc8 20.Nxe6+ Rxe6 21.h5 
Be7 22.g4 Rf8 23.hxg6 fxg6 24.Ke2 c5 25.Bb5 Nf6 26.dxc5 Ne4 27.c6 Ref6 28.
Rh3 bxc6 29.Rxc6 Rb8 30.Rxf6 Bxf6 31.a4 a6 32.Bxa6 Rxb2+ 33.Kf1 Rxf2+ 34.
Kg1 Ra2 35.Bb5 Nc3 36.Bc6 Ra1+ 37.Kg2 Ra2+ 38.Kg1 Ra1+ 39.Kg2 Nxa4 40.Bxd5
Nc3 41.Be6 Ra6 42.Bc4 Ra4 43.Nd2 Nb1 44.Nxb1 Rxc4 45.Kf3 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.28"]
[Round "6"]
[White "Boersma, Paulus"]
[Black "Brenninkmeijer, Joris"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[ECO "A10"]
[EventDate "1986.07.22"]
[PlyCount "120"]

1.Nf3 f5 2.b3 Nf6 3.Bb2 e6 4.c4 Be7 5.g3 O-O 6.Bg2 d5 7.O-O c6 8.Qc2 Bd7 
9.d3 Na6 10.Nbd2 Be8 11.a3 Nc7 12.Ne5 Bh5 13.Ndf3 Bxf3 14.Nxf3 Nd7 15.e4 
Bf6 16.exd5 Bxb2 17.Qxb2 exd5 18.Rfe1 Qf6 19.Qxf6 Nxf6 20.Nd4 g6 21.b4 
Rfe8 22.Nb3 Rxe1+ 23.Rxe1 Kf7 24.Na5 Rb8 25.Kf1 Ne6 26.cxd5 cxd5 27.Re5 
Nc7 28.h3 a6 29.Re1 b6 30.Nc6 Re8 31.Ne5+ Kg7 32.f4 Nb5 33.Rc1 Re7 34.Rc6 
Nxa3 35.Rxb6 Nc2 36.Kf2 Ra7 37.Nc6 Ra8 38.Rb7+ Kf8 39.Ne5 Kg8 40.g4 fxg4 
41.hxg4 Rd8 42.g5 Nh5 43.Nc6 Rf8 44.Ne7+ Kh8 45.Nxd5 h6 46.Kg1 Nd4 47.gxh6
Ne2+ 48.Kh2 Nhxf4 49.Nxf4 Nxf4 50.Be4 Rd8 51.Rb6 Nxd3 52.Bxg6 Nf4 53.Rxa6 
Nxg6 54.Rxg6 Rb8 55.Rg4 Kh7 56.Rh4 Rg8 57.Kh3 Rg5 58.Rg4 Rb5 59.Kg3 Kxh6 
60.Rc4 Kg5 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.28"]
[Round "6"]
[White "Hartoch, Robert"]
[Black "Eslon, Jaan"]
[Result "1/2-1/2"]
[WhiteElo "2370"]
[BlackElo "2415"]
[ECO "A14"]
[EventDate "1986.07.22"]
[PlyCount "28"]

1.Nf3 Nf6 2.g3 b6 3.Bg2 Bb7 4.O-O e6 5.d3 d5 6.Nbd2 Nbd7 7.b3 c5 8.Bb2 Qc7
9.e3 Be7 10.c4 O-O 11.Qe2 Rad8 12.Rac1 dxc4 13.bxc4 Nb8 14.Rfd1 Nc6 
1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.28"]
[Round "6"]
[White "Langeweg, Christian"]
[Black "Pieterse, Gert"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2265"]
[ECO "A07"]
[EventDate "1986.07.22"]
[PlyCount "46"]

1.Nf3 d5 2.g3 c6 3.Bg2 Bf5 4.O-O e6 5.d3 Nf6 6.b3 h6 7.Bb2 Nbd7 8.e3 Be7 
9.Qe2 O-O 10.Kh1 Bh7 11.Nbd2 a5 12.a4 b5 13.Nd4 Qb6 14.f4 bxa4 15.Rxa4 Nc5
16.Raa1 a4 17.Rab1 axb3 18.N4xb3 Nxb3 19.Nxb3 Nd7 20.e4 Bf6 21.e5 Be7 22.
g4 Ra4 23.Ra1 Rfa8 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.28"]
[Round "6"]
[White "Pliester, Leon"]
[Black "Kuijf, Marinus"]
[Result "1/2-1/2"]
[WhiteElo "2380"]
[BlackElo "2430"]
[ECO "A13"]
[EventDate "1986.07.22"]
[PlyCount "128"]

1.c4 e6 2.Nf3 d5 3.g3 dxc4 4.Qa4+ Nd7 5.Qxc4 a6 6.Bg2 b5 7.Qc2 Bb7 8.O-O 
Ngf6 9.b3 Bd6 10.Bb2 O-O 11.d3 c5 12.Nbd2 Qb6 13.Ng5 Bxg2 14.Kxg2 Be7 15.
e4 Ng4 16.Ngf3 Bf6 17.h3 Bxb2 18.Qxb2 Ngf6 19.a4 Rac8 20.axb5 axb5 21.Ra2 
Rfd8 22.Rfa1 Nb8 23.Qc3 Qd6 24.Ne1 Nc6 25.Ndf3 Nd7 26.Ra6 Qb8 27.h4 h6 28.
Qc1 Qb7 29.Qf4 Ndb8 30.R6a2 Qe7 31.h5 Rd7 32.Rc1 Nd4 33.Nxd4 Rxd4 34.Ra8 
Rdd8 35.Rca1 Nc6 36.Rxc8 Rxc8 37.Nf3 Rd8 38.Ne5 Nxe5 39.Qxe5 b4 40.Ra5 f6 
41.Qxc5 Qxc5 42.Rxc5 Rxd3 43.Rc8+ Kf7 44.Rc7+ Kf8 45.Rc8+ Ke7 46.Rc7+ Kd6 
47.Rxg7 Rxb3 48.Rg6 Rc3 49.Rxh6 Rc8 50.Rxf6 b3 51.Rf3 Rb8 52.Rd3+ Ke5 53.
Rd1 Kxe4 54.g4 Kf4 55.Kh3 e5 56.Kh4 Kf3 57.h6 e4 58.g5 Kxf2 59.g6 e3 60.g7
e2 61.Rb1 e1=Q 62.Rxe1 Kxe1 63.h7 b2 64.g8=Q b1=Q 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.28"]
[Round "6"]
[White "Meulders, Richard"]
[Black "De Boer, Gert Jan"]
[Result "0-1"]
[WhiteElo "2370"]
[BlackElo "2440"]
[ECO "E42"]
[EventDate "1986.07.22"]
[PlyCount "81"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2 d5 6.a3 Bxc3+ 7.Nxc3 cxd4 8.exd4 
dxc4 9.Bxc4 Nc6 10.Be3 O-O 11.O-O h6 12.Qd3 Bd7 13.Rad1 Ne7 14.Rfe1 Bc6 
15.Bf4 Nfd5 16.Be5 Rc8 17.Nb5 Qb6 18.Nd6 Rcd8 19.b3 Rd7 20.Ne4 Ng6 21.Qg3 
Rfd8 22.Rd3 Bb5 23.Nc5 Re7 24.h4 Nxe5 25.Qxe5 Bxc4 26.bxc4 Nf6 27.Rb3 Qc6 
28.Rg3 Ne8 29.Rd1 Qc7 30.Qe3 Kf8 31.Rf3 Qc6 32.Re1 Kg8 33.d5 Qc8 34.dxe6 
fxe6 35.Nxe6 Nc7 36.Rf6 gxf6 37.Qxh6 Nxe6 38.Qxf6 Qd7 39.Re3 Rf8 40.Qg6+ 
Ng7 41.Rg3 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.28"]
[Round "6"]
[White "Piket, Marcel"]
[Black "Marjanovic, Slavoljub"]
[Result "0-1"]
[WhiteElo "2375"]
[BlackElo "2515"]
[ECO "D03"]
[EventDate "1986.07.22"]
[PlyCount "126"]

1.d4 d5 2.Nf3 Nf6 3.Bg5 Ne4 4.Bf4 c5 5.e3 Nc6 6.c3 Qb6 7.Qb3 c4 8.Qc2 h6 
9.Nbd2 Bf5 10.Qc1 e6 11.Nxe4 Bxe4 12.Nd2 Bg6 13.e4 Rd8 14.Be2 Be7 15.O-O 
O-O 16.Re1 Qa5 17.Bf3 b5 18.a4 Qb6 19.axb5 Qxb5 20.Ra2 Bd6 21.Bxd6 Rxd6 
22.Bd1 Qb7 23.e5 Rd7 24.b3 Bd3 25.bxc4 dxc4 26.Bc2 Rc8 27.Re3 Ne7 28.Bxd3 
cxd3 29.Rxd3 Ng6 30.Nf3 Qd5 31.Ra1 Qc4 32.Re3 Nf4 33.Qf1 Nd5 34.Qxc4 Rxc4 
35.Ree1 Nxc3 36.g3 g5 37.h3 Nb5 38.Nd2 Rcxd4 39.Ne4 Kg7 40.Nf6 Rd8 41.Reb1
Nc3 42.Rb7 Rd1+ 43.Rxd1 Rxd1+ 44.Kg2 Re1 45.Rxa7 Rxe5 46.Ne8+ Kg6 47.Nd6 
f5 48.Nf7 Re2 49.Kf1 Ra2 50.Nh8+ Kf6 51.Rf7+ Ke5 52.Ng6+ Kd6 53.f3 Ne2 54.
g4 f4 55.Rh7 Nd4 56.Rxh6 Nxf3 57.Nf8 Nd4 58.Nh7 f3 59.Nxg5 Ke5 60.Ke1 Kf4 
61.Nxf3 Kxf3 62.g5 Ke3 63.Kf1 e5 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.28"]
[Round "6"]
[White "Rivas Pastor, Manuel"]
[Black "Sehner, Norbert"]
[Result "1-0"]
[WhiteElo "2470"]
[BlackElo "2390"]
[ECO "D31"]
[EventDate "1986.07.22"]
[PlyCount "39"]

1.d4 d5 2.c4 e6 3.Nc3 c6 4.Nf3 dxc4 5.a4 Bb4 6.g3 Nf6 7.Bg2 c5 8.O-O Nc6 
9.dxc5 O-O 10.Nd2 Na5 11.Qc2 Qc7 12.Nce4 Nxe4 13.Nxe4 f5 14.Bd2 Bxd2 15.
Nxd2 Qxc5 16.Qc3 Qb6 17.Rfd1 Qa6 18.e3 Bd7 19.b4 cxb3 20.Nxb3 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.28"]
[Round "6"]
[White "Kremer, Mark"]
[Black "Weemaes, Ronald"]
[Result "0-1"]
[BlackElo "2335"]
[ECO "B74"]
[EventDate "1986.07.22"]
[PlyCount "90"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Nb3 Nf6 7.Be2 a6 8.O-O 
b5 9.Be3 O-O 10.f4 d6 11.Bf3 e5 12.f5 Bb7 13.g4 gxf5 14.g5 Nxe4 15.Nxe4 
fxe4 16.Bxe4 Na5 17.Bxb7 Nxb7 18.Qd5 Qd7 19.Rad1 Rac8 20.c3 Qc6 21.Qxc6 
Rxc6 22.Rd5 f5 23.gxf6 Rxf6 24.Rxf6 Bxf6 25.Nc1 Kf7 26.Nd3 Ke6 27.Nb4 Rc8 
28.Rd1 a5 29.Nd5 Rg8+ 30.Kf2 Bd8 31.b4 Rg4 32.a3 Kd7 33.bxa5 Nxa5 34.Rb1 
Ra4 35.Bb6 Bh4+ 36.Kf3 Kc6 37.Bxa5 Kxd5 38.Rxb5+ Kc4 39.Rb4+ Rxb4 40.axb4 
d5 41.Kg4 Be1 42.b5 Kxb5 43.c4+ Kxa5 44.cxd5 Bb4 45.Kf5 Bd6 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.28"]
[Round "6"]
[White "Bezemer, Arno"]
[Black "Peelen, Piet"]
[Result "0-1"]
[BlackElo "2395"]
[ECO "B13"]
[EventDate "1986.07.22"]
[PlyCount "94"]

1.e4 c6 2.d4 d5 3.exd5 cxd5 4.Bd3 Nc6 5.c3 g6 6.Bf4 Nh6 7.Qc1 Bf5 8.Bxf5 
Nxf5 9.Nf3 Bg7 10.O-O Rc8 11.Qd1 O-O 12.Qd3 Qb6 13.b4 a5 14.a3 Na7 15.Nbd2
Qb5 16.Qb1 Rxc3 17.bxa5 Nxd4 18.Nxd4 Bxd4 19.Qxb5 Nxb5 20.Rab1 Nd6 21.Bxd6
exd6 22.Rxb7 Rxa3 23.Rb5 Bc5 24.Nb3 Rc8 25.g3 Ra2 26.Kg2 Kf8 27.Nc1 Rc2 
28.Nd3 Ra2 29.Rc1 Ke7 30.Re1+ Kf6 31.Rc1 Rc7 32.Nxc5 dxc5 33.Rcxc5 Rxc5 
34.Rxc5 Ke5 35.Kf3 f5 36.Ke3 Ra3+ 37.Ke2 g5 38.h3 f4 39.Rc7 f3+ 40.Kd2 
Ra2+ 41.Ke3 Ra3+ 42.Kd2 h5 43.Rf7 Ke4 44.Re7+ Kd4 45.Rf7 Ra2+ 46.Ke1 g4 
47.hxg4 hxg4 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.29"]
[Round "7"]
[White "Murey, Jacob"]
[Black "Martinovic, Slobodan"]
[Result "1-0"]
[WhiteElo "2490"]
[BlackElo "2425"]
[ECO "E81"]
[EventDate "1986.07.22"]
[PlyCount "99"]

1.c4 Nf6 2.Nc3 g6 3.e4 d6 4.d4 Bg7 5.f3 O-O 6.Be3 Nbd7 7.Qd2 c5 8.Nge2 a6 
9.Bh6 Bxh6 10.Qxh6 b5 11.h4 e5 12.dxe5 Nxe5 13.Nf4 bxc4 14.O-O-O Rb8 15.
Be2 Kh8 16.Rd2 Be6 17.Qg5 Ne8 18.Rhd1 Qxg5 19.hxg5 Kg7 20.Ncd5 h6 21.gxh6+
Kxh6 22.Ne3 Rb4 23.Nfd5 Bxd5 24.Nxd5 Ra4 25.a3 g5 26.Nb6 Ra5 27.Nxc4 Nxc4 
28.Bxc4 Kg7 29.Kb1 Rh8 30.Ka2 Rh2 31.e5 dxe5 32.Rd7 Rxg2 33.Rxf7+ Kg6 34.
Rf8 Ra4 35.Bb3 Rf4 36.Rxe8 c4 37.Ba4 c3 38.Re6+ Kf7 39.Rxa6 Rxb2+ 40.Ka1 
Rb7 41.Bc2 g4 42.fxg4 Rxg4 43.Rc6 Rg3 44.a4 e4 45.Rc4 Kf6 46.Bxe4 Rb3 47.
Bc2 Ra3+ 48.Kb1 Rg8 49.Rf4+ Ke5 50.Re4+ 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.29"]
[Round "7"]
[White "Smejkal, Jan"]
[Black "De Boer, Gert Jan"]
[Result "1-0"]
[WhiteElo "2540"]
[BlackElo "2440"]
[ECO "A07"]
[EventDate "1986.07.22"]
[PlyCount "117"]

1.Nf3 d5 2.g3 c6 3.Bg2 Bg4 4.O-O Nd7 5.d3 Ngf6 6.Nbd2 e5 7.e4 dxe4 8.dxe4 
Be7 9.h3 Bxf3 10.Qxf3 O-O 11.Nc4 Qc7 12.Bd2 Rfd8 13.Rfd1 g6 14.a4 Nc5 15.
Bc3 Rxd1+ 16.Rxd1 Nfd7 17.b3 f6 18.Ne3 Nf8 19.Bf1 Rd8 20.Bc4+ Kh8 21.Rxd8 
Qxd8 22.h4 Nce6 23.h5 Nd4 24.Qd1 a5 25.Kg2 Bb4 26.Bb2 Nde6 27.Qg4 Qe7 28.
hxg6 hxg6 29.Qh4+ Nh7 30.Qh3 Ng5 31.Qc8+ Nf8 32.Bd3 Qd7 33.Qxd7 Nxd7 34.f3
Kg7 35.Nc4 b6 36.f4 Nf7 37.Kf3 Bc5 38.Bf1 exf4 39.gxf4 g5 40.Bh3 Nf8 41.e5
fxe5 42.fxe5 Nd8 43.e6+ Kh6 44.e7 Bxe7 45.Nxb6 Nfe6 46.Nc4 Nf4 47.Bd7 Bb4 
48.Bf6 Nf7 49.Bxc6 Kg6 50.Bd4 Ne6 51.Bb2 Nh6 52.Ne5+ Kh5 53.Bd7 Nf4 54.Bd4
Be1 55.Be3 Nd5 56.Be8+ Kh4 57.Ng6+ Kh3 58.Bxg5 Ng8 59.Nf4+ 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.29"]
[Round "7"]
[White "Dolmatov, Sergei"]
[Black "Geller, Efim"]
[Result "1/2-1/2"]
[WhiteElo "2510"]
[BlackElo "2490"]
[ECO "D58"]
[EventDate "1986.07.22"]
[PlyCount "27"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 Be7 5.Bg5 h6 6.Bh4 O-O 7.e3 b6 8.Bd3 Bb7 
9.O-O Nbd7 10.Qc2 c5 11.Rfd1 Rc8 12.cxd5 Nxd5 13.Bxe7 Qxe7 14.Nxd5 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.29"]
[Round "7"]
[White "Mednis, Edmar John"]
[Black "Zapata Ramirez, Alonso"]
[Result "0-1"]
[WhiteElo "2470"]
[BlackElo "2495"]
[ECO "A26"]
[EventDate "1986.07.22"]
[PlyCount "72"]

1.c4 Nf6 2.g3 g6 3.Bg2 Bg7 4.Nf3 d6 5.O-O O-O 6.Nc3 Nc6 7.d3 e5 8.Rb1 a5 
9.a3 h6 10.b4 axb4 11.axb4 Be6 12.b5 Ne7 13.Bb2 Qd7 14.Nd2 Rab8 15.Re1 Bh3
16.Bh1 Ng4 17.Ra1 f5 18.Nd5 g5 19.Ra7 Nc8 20.Ra2 c6 21.Nc3 Ne7 22.Qc2 Kh8 
23.Rea1 f4 24.bxc6 bxc6 25.Nf3 Nf5 26.Ra7 Qe8 27.Ne4 d5 28.Nc5 Rf7 29.Bc3 
Nd6 30.Qa4 e4 31.Bxg7+ Rxg7 32.Rxg7 e3 33.Bg2 exf2+ 34.Kh1 Bxg2+ 35.Kxg2 
Qxe2 36.Rh7+ Kxh7 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.29"]
[Round "7"]
[White "Eslon, Jaan"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2415"]
[BlackElo "2450"]
[ECO "E76"]
[EventDate "1986.07.22"]
[PlyCount "107"]

1.d4 Nf6 2.c4 c5 3.d5 d6 4.Nc3 g6 5.e4 Bg7 6.f4 O-O 7.Nf3 b5 8.cxb5 a6 9.
Bd2 axb5 10.Bxb5 Qb6 11.a4 Ba6 12.Rb1 Bxb5 13.axb5 Ne8 14.O-O Nc7 15.Kh1 
Nd7 16.Qe2 Rfb8 17.e5 Qb7 18.e6 fxe6 19.dxe6 Nf8 20.f5 Nxb5 21.Qd3 Nxc3 
22.bxc3 c4 23.Rxb7 cxd3 24.Rxb8 Rxb8 25.g4 h5 26.h3 hxg4 27.hxg4 Nh7 28.
Nh4 gxf5 29.Nxf5 Rb7 30.Rf3 Nf8 31.Rxd3 Nxe6 32.Nxg7 Kxg7 33.Kg2 Nc5 34.
Re3 e5 35.Re2 Kg6 36.Be3 Ne4 37.c4 Rc7 38.Rc2 d5 39.Kf3 Ng5+ 40.Ke2 Rxc4 
41.Rxc4 dxc4 42.Bc1 Kf6 43.Kd2 Ne4+ 44.Kc2 Ke6 45.Ba3 Ng5 46.Bc1 Nf3 47.
Kc3 Kd5 48.g5 Nh4 49.Bd2 Ng6 50.Bc1 e4 51.Be3 Ne5 52.Bf4 Ng6 53.Bc1 Ne7 
54.Bf4 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.29"]
[Round "7"]
[White "Marjanovic, Slavoljub"]
[Black "Pliester, Leon"]
[Result "1/2-1/2"]
[WhiteElo "2515"]
[BlackElo "2380"]
[ECO "C75"]
[EventDate "1986.07.22"]
[PlyCount "87"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nge7 4.c3 a6 5.Ba4 d6 6.d4 Bd7 7.Bg5 f6 8.Be3 Ng6 
9.Nbd2 Be7 10.Bb3 Na5 11.Bc2 c5 12.d5 Rc8 13.b3 O-O 14.O-O b5 15.Qe2 Qe8 
16.Rfc1 Bd8 17.b4 cxb4 18.cxb4 Nc4 19.Nxc4 Rxc4 20.a3 Nf4 21.Bxf4 exf4 22.
Bd3 Rxc1+ 23.Rxc1 Bb6 24.Qd2 g5 25.h3 h5 26.Nh2 Qe5 27.Nf3 Qe7 28.Nh2 Qe5 
29.Nf3 Qe7 30.Nh2 Rc8 31.Rxc8+ Bxc8 32.Qd1 Qe5 33.Qxh5 Kg7 34.Nf3 Qa1+ 35.
Bf1 Qb2 36.Qe8 Qxf2+ 37.Kh2 Qxf1 38.Qe7+ Kg6 39.Qe8+ Kg7 40.Qe7+ Kg6 41.h4
Bg4 42.Qe8+ Kg7 43.Qe7+ Kg6 44.Qe8+ 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.29"]
[Round "7"]
[White "Chiburdanidze, Maia"]
[Black "Hartoch, Robert"]
[Result "1/2-1/2"]
[WhiteElo "2435"]
[BlackElo "2370"]
[ECO "C43"]
[EventDate "1986.07.22"]
[PlyCount "24"]

1.e4 e5 2.Nf3 Nf6 3.d4 exd4 4.e5 Ne4 5.Qxd4 d5 6.exd6 Nxd6 7.Nc3 Nc6 8.Qf4
g6 9.Bd2 Bg7 10.O-O-O O-O 11.Nb5 a6 12.Nbd4 Nxd4 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.29"]
[Round "7"]
[White "Douven, Rudy"]
[Black "Piket, Jeroen"]
[Result "1-0"]
[WhiteElo "2415"]
[BlackElo "2390"]
[ECO "E92"]
[EventDate "1986.07.22"]
[PlyCount "75"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Nf3 e5 7.Be3 Qe7 8.dxe5 
dxe5 9.Nd5 Nxd5 10.cxd5 c6 11.O-O cxd5 12.exd5 e4 13.Nd4 Rd8 14.Rc1 Nd7 
15.Nb5 Nb6 16.Nxa7 Nxd5 17.Nxc8 Qe6 18.Qb3 Raxc8 19.Rxc8 Qxc8 20.Bc4 Nxe3 
21.fxe3 Kh8 22.Rxf7 b6 23.Qxb6 Rd2 24.Qa7 Qd8 25.Bf1 Rd1 26.a4 h5 27.a5 h4
28.h3 g5 29.Qb6 Qxb6 30.axb6 Rb1 31.Rf5 Rxb2 32.Bb5 Rb1+ 33.Kf2 Bc3 34.b7 
Be1+ 35.Ke2 Bg3 36.Rxg5 Kh7 37.Rxg3 Rb2+ 38.Kd1 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.29"]
[Round "7"]
[White "Blees, Albert"]
[Black "Boersma, Paulus"]
[Result "1/2-1/2"]
[WhiteElo "2360"]
[BlackElo "2400"]
[ECO "D07"]
[EventDate "1986.07.22"]
[PlyCount "50"]

1.d4 d5 2.c4 Nc6 3.Nc3 dxc4 4.Nf3 Nf6 5.d5 Na5 6.b4 cxb3 7.axb3 e6 8.Qd4 
c6 9.dxc6 Qxd4 10.Nxd4 Bb4 11.Bd2 Nxc6 12.Nxc6 bxc6 13.e4 O-O 14.f3 Rd8 
15.O-O-O a5 16.Kc2 Bb7 17.Bc4 c5 18.Be3 Bc6 19.Na4 Bxa4 20.bxa4 Kf8 21.Bb5
Ne8 22.Bc6 Rac8 23.Bd7 Rc7 24.Bb5 Rcc8 25.Bd7 Rc7 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.29"]
[Round "7"]
[White "Kuijf, Marinus"]
[Black "Gheorghiu, Florin"]
[Result "1/2-1/2"]
[WhiteElo "2430"]
[BlackElo "2555"]
[ECO "B47"]
[EventDate "1986.07.22"]
[PlyCount "46"]

1.e4 c5 2.Ne2 e6 3.Nbc3 a6 4.g3 Nc6 5.d4 cxd4 6.Nxd4 d6 7.Bg2 Bd7 8.O-O 
Be7 9.Re1 Qc7 10.Nxc6 Bxc6 11.Qg4 h5 12.Qe2 Nf6 13.a4 Rd8 14.Bg5 Kf8 15.
Rad1 Ne8 16.Be3 Nf6 17.h3 g6 18.Qc4 Rc8 19.Qd4 Kg7 20.Bg5 Rhd8 21.Qe3 Ng8 
22.Bxe7 Qxe7 23.Rd2 Nf6 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.29"]
[Round "7"]
[White "Brenninkmeijer, Joris"]
[Black "Braga, Fernando Alberto"]
[Result "1/2-1/2"]
[BlackElo "2480"]
[ECO "A56"]
[EventDate "1986.07.22"]
[PlyCount "78"]

1.d4 Nf6 2.c4 c5 3.d5 e5 4.Nc3 d6 5.e4 Be7 6.Bd3 O-O 7.Nf3 Nbd7 8.Qe2 Ne8 
9.g4 a6 10.a4 g6 11.Bh6 Ng7 12.Kd2 Nf6 13.h3 Kh8 14.Kc2 Rb8 15.Rag1 Bd7 
16.Be3 b5 17.axb5 axb5 18.cxb5 Nfe8 19.Nd2 Nc7 20.Ra1 f5 21.f3 fxe4 22.
Ndxe4 Rb7 23.h4 Be8 24.Bc4 Na8 25.b3 Nb6 26.Ra6 Bf7 27.f4 exf4 28.Bxf4 Ne8
29.Qh2 Kg8 30.Rha1 Qd7 31.Qg3 Qd8 32.Bg5 Qd7 33.Bxe7 Qxe7 34.g5 Nxd5 35.
Bxd5 Bxd5 36.Re1 Bxe4+ 37.Rxe4 Qd7 38.Qd3 Kh8 39.Qd5 Rb8 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.29"]
[Round "7"]
[White "Peelen, Piet"]
[Black "Langeweg, Christian"]
[Result "1/2-1/2"]
[WhiteElo "2395"]
[BlackElo "2400"]
[ECO "B85"]
[EventDate "1986.07.22"]
[PlyCount "77"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be2 Qc7 7.O-O Nf6 8.Be3 
Be7 9.f4 d6 10.Bf3 O-O 11.Nxc6 bxc6 12.Na4 Bb7 13.c4 c5 14.Qc2 Nd7 15.Rad1
Nb8 16.Qf2 Bc6 17.Nc3 Nd7 18.Rd3 Rfd8 19.b3 Rac8 20.Qe2 Bf6 21.Rfd1 Nb8 
22.Qd2 Be8 23.Ne2 Be7 24.f5 Nc6 25.fxe6 fxe6 26.Bg4 Bf7 27.Bf4 Ne5 28.Bxe5
dxe5 29.Rd7 Qc6 30.Nc3 h6 31.Qd3 Bg5 32.Kh1 Rxd7 33.Qxd7 Be3 34.Qxc6 Rxc6 
35.Rd8+ Kh7 36.Rd7 Kg8 37.Rd8+ Kh7 38.Rd7 Kg8 39.Rd8+ 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.29"]
[Round "7"]
[White "Pieterse, Gert"]
[Black "Rivas Pastor, Manuel"]
[Result "1-0"]
[WhiteElo "2265"]
[BlackElo "2470"]
[ECO "D36"]
[EventDate "1986.07.22"]
[PlyCount "79"]

1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.cxd5 exd5 5.Bg5 c6 6.Qc2 Be7 7.e3 Nbd7 8.Bd3 
O-O 9.Nge2 Re8 10.O-O Nf8 11.Rab1 a5 12.a3 g6 13.Rbe1 Ne6 14.Bh4 b6 15.Qb3
b5 16.Rc1 a4 17.Qc2 Bb7 18.Na2 Nd7 19.Bxe7 Qxe7 20.Nb4 Rac8 21.Qc3 Nb6 22.
Rc2 c5 23.dxc5 Rxc5 24.Qe1 d4 25.Rxc5 Qxc5 26.Qc1 dxe3 27.Qxc5 Nxc5 28.
Bxb5 exf2+ 29.Rxf2 Re5 30.Nc3 Re1+ 31.Rf1 Re5 32.Rd1 Ne6 33.Rd6 Nc8 34.Rd7
Nc5 35.Rd8+ Kg7 36.Bc6 Ne7 37.Bxb7 Nxb7 38.Ra8 Nc5 39.Ra5 Kf6 40.Rxc5 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.29"]
[Round "7"]
[White "Sehner, Norbert"]
[Black "Piket, Marcel"]
[Result "0-1"]
[WhiteElo "2390"]
[BlackElo "2375"]
[ECO "A25"]
[EventDate "1986.07.22"]
[PlyCount "82"]

1.c4 g6 2.g3 Bg7 3.Bg2 e5 4.Nc3 d6 5.e3 Nc6 6.Nge2 h5 7.h4 Bg4 8.d3 Nge7 
9.b3 O-O 10.Bb2 Rb8 11.Qd2 Re8 12.O-O Qd7 13.Kh2 a6 14.Rac1 Kh7 15.Ng1 Bh6
16.Ne4 Ng8 17.Nh3 f6 18.b4 Bg7 19.a4 Nce7 20.b5 Nh6 21.Ba3 b6 22.d4 Bxh3 
23.Bxh3 Ng4+ 24.Kg1 Nf5 25.Bxg4 hxg4 26.dxe5 Rxe5 27.Nc3 a5 28.Bb2 Qf7 29.
Qd3 Rbe8 30.Rce1 Ne7 31.e4 f5 32.Ba1 Ng8 33.Re2 f4 34.Nd5 f3 35.Re3 g5 36.
hxg5 Qh5 37.Rfe1 Qxg5 38.Nxc7 R8e7 39.Nd5 R7e6 40.Nf4 Rh6 41.Rd1 Qh5 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.29"]
[Round "7"]
[White "Weemaes, Ronald"]
[Black "Meulders, Richard"]
[Result "1/2-1/2"]
[WhiteElo "2335"]
[BlackElo "2370"]
[ECO "D02"]
[EventDate "1986.07.22"]
[PlyCount "121"]

1.d4 d5 2.Nf3 Nc6 3.Bf4 Bg4 4.e3 e6 5.Be2 Bd6 6.Bxd6 Qxd6 7.O-O Nf6 8.c4 
O-O 9.Nc3 Rad8 10.Rc1 dxc4 11.Qa4 Qb4 12.Qxb4 Nxb4 13.Bxc4 Bxf3 14.gxf3 c6
15.a3 Nbd5 16.Rc2 Rfe8 17.Nxd5 exd5 18.Bd3 Re7 19.b4 Ne8 20.a4 g6 21.Rc5 
Nc7 22.Rfc1 Ne6 23.R5c3 f5 24.f4 Kf7 25.b5 cxb5 26.axb5 b6 27.Bb1 Red7 28.
Kf1 Ke7 29.Ke2 Ra8 30.Bd3 Rb8 31.Kd2 Rbb7 32.Rc8 Rdc7 33.R1xc7+ Rxc7 34.
Ra8 Nd8 35.Be2 Rd7 36.Bd3 Nf7 37.Ke2 Nd6 38.Kd2 Ne8 39.Rc8 Rc7 40.Ra8 Nd6 
41.f3 Nc8 42.Be2 Kd8 43.e4 Rd7 44.exf5 gxf5 45.Bd3 Rf7 46.Bc2 Kc7 47.Bb3 
Rf6 48.Bxd5 Rd6 49.Bc6 Rxd4+ 50.Ke3 Rd6 51.Kf2 a5 52.Kg3 Rd8 53.Kh4 Rd2 
54.h3 Rg2 55.Kh5 Rg3 56.h4 Rg6 57.Bd5 Rd6 58.Bc6 Rg6 59.Bd5 Rd6 60.Bc6 Rg6
61.Bd5 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.29"]
[Round "7"]
[White "Kremer, Mark"]
[Black "Bezemer, Arno"]
[Result "1-0"]
[ECO "A61"]
[EventDate "1986.07.22"]
[PlyCount "31"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.Bf4 Bg7 8.Qa4+ 
Bd7 9.Qb3 Qa5 10.Nd2 b5 11.e3 c4 12.Bxc4 bxc4 13.Nxc4 Qa6 14.Bxd6 Qc8 15.
O-O Bf8 16.Be5 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.30"]
[Round "8"]
[White "Zapata Ramirez, Alonso"]
[Black "Dolmatov, Sergei"]
[Result "1-0"]
[WhiteElo "2495"]
[BlackElo "2510"]
[ECO "C08"]
[EventDate "1986.07.22"]
[PlyCount "91"]

1.e4 e6 2.d4 d5 3.Nd2 a6 4.Ngf3 c5 5.exd5 exd5 6.dxc5 Bxc5 7.Nb3 Be7 8.Bd3
Bg4 9.O-O Nf6 10.Re1 O-O 11.c3 Nc6 12.Bg5 Re8 13.h3 Bh5 14.Bxf6 Bxf6 15.
Rxe8+ Qxe8 16.g4 Bg6 17.Bxg6 hxg6 18.g5 Be5 19.Qxd5 Rd8 20.Qc4 Qd7 21.Kg2 
Bb8 22.Re1 Ne7 23.Nc5 Qc7 24.Qe4 Nf5 25.Nxb7 Rd7 26.Qb4 Kh7 27.Nc5 a5 28.
Qc4 Ba7 29.Re5 Rd1 30.b4 axb4 31.cxb4 Bb8 32.Qg4 Qd8 33.Rxf5 gxf5 34.Qxf5+
Kg8 35.g6 fxg6 36.Qxg6 Rd6 37.Qe4 Rh6 38.Ne6 Qd6 39.Neg5 Qc6 40.Qf5 Qb7 
41.Qd3 Bd6 42.a4 Bxb4 43.Qc4+ Kf8 44.Ne6+ Ke7 45.Qg4 Rf6 46.Qxg7+ 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.30"]
[Round "8"]
[White "Geller, Efim"]
[Black "Murey, Jacob"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2490"]
[ECO "D16"]
[EventDate "1986.07.22"]
[PlyCount "29"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 a5 6.e4 Bg4 7.Bxc4 e6 8.O-O Bb4 
9.e5 Nd5 10.Ne4 Nd7 11.Bg5 Qb6 12.Be2 h6 13.Bc1 O-O-O 14.Bd2 f5 15.exf6 
1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.30"]
[Round "8"]
[White "Ree, Hans"]
[Black "Smejkal, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2450"]
[BlackElo "2540"]
[ECO "A29"]
[EventDate "1986.07.22"]
[PlyCount "69"]

1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.g3 d5 5.cxd5 Nxd5 6.Bg2 Nb6 7.O-O Be7 8.d3 
O-O 9.Be3 Be6 10.Qc1 f6 11.Ne4 Bd5 12.Rd1 Rb8 13.Nc3 Bxf3 14.Bxf3 Nd4 15.
Bxd4 exd4 16.Ne4 c6 17.Nc5 Qd6 18.b4 Kh8 19.Qb2 Nd7 20.Nxd7 Qxd7 21.Rdc1 
Bd8 22.a4 a6 23.b5 Ba5 24.bxc6 bxc6 25.Qa2 Bc3 26.Rab1 c5 27.Rxb8 Rxb8 28.
Rb1 Bb4 29.Qc4 Qd6 30.a5 Re8 31.Rb2 g6 32.Bb7 Kg7 33.Qxa6 Qxa6 34.Bxa6 Ra8
35.Bc4 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.30"]
[Round "8"]
[White "Martinovic, Slobodan"]
[Black "Douven, Rudy"]
[Result "1/2-1/2"]
[WhiteElo "2425"]
[BlackElo "2415"]
[ECO "E14"]
[EventDate "1986.07.22"]
[PlyCount "102"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.e3 Bb7 5.Bd3 d5 6.O-O Be7 7.b3 O-O 8.Bb2 c5 9.
Nbd2 cxd4 10.exd4 Nc6 11.Rc1 Rc8 12.Qe2 Re8 13.Rfd1 Bf8 14.h3 g6 15.Qe3 
Bg7 16.Ne5 Ne7 17.c5 Nd7 18.Bb5 Nc6 19.Nxd7 Qxd7 20.cxb6 a6 21.Ba4 Qd8 22.
Nf3 Qxb6 23.Ne5 Red8 24.Bxc6 Bxc6 25.Rc5 Be8 26.Rdc1 Qb8 27.h4 Rxc5 28.
Rxc5 Qd6 29.Nf3 h5 30.Bc3 Qb8 31.Bd2 Rc8 32.Qc3 Rxc5 33.Qxc5 Bf8 34.Qc1 
Bd6 35.Bg5 Qc7 36.Qd2 a5 37.g3 Bb4 38.Qe2 a4 39.Bf6 Qc3 40.bxa4 Bxa4 41.
Kg2 Bc2 42.Ng5 Bd3 43.Qe5 Qe1 44.Qf4 Qf1+ 45.Kh2 Bf5 46.a4 Bd6 47.Qe3 Bb4 
48.Qf4 Bd6 49.Qd2 Bb4 50.Qf4 Bd6 51.Qe3 Bb4 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.30"]
[Round "8"]
[White "Eslon, Jaan"]
[Black "Mednis, Edmar John"]
[Result "1-0"]
[WhiteElo "2415"]
[BlackElo "2470"]
[ECO "E60"]
[EventDate "1986.07.22"]
[PlyCount "117"]

1.d4 Nf6 2.c4 g6 3.f3 Bg7 4.e4 d6 5.Bd3 O-O 6.Ne2 c6 7.Nbc3 a6 8.O-O b5 9.
a3 Nbd7 10.Kh1 e5 11.cxb5 axb5 12.Be3 Rb8 13.b4 Bb7 14.Qb3 exd4 15.Nxd4 
Re8 16.Bg1 Nh5 17.f4 Qh4 18.Rf3 Qe7 19.Qa2 Nf8 20.Raf1 Ne6 21.Nce2 Nf6 22.
Nb3 Nd8 23.e5 Nd7 24.exd6 Qxd6 25.Nc5 Nf6 26.f5 Bc8 27.Ng3 Qd5 28.Qb1 Ng4 
29.Bc2 Qd6 30.fxg6 hxg6 31.Nge4 Qe7 32.h3 Ne5 33.Nf6+ Bxf6 34.Rxf6 Ne6 35.
Nxe6 Bxe6 36.Bc5 Qd7 37.R6f2 Bd5 38.Kg1 Ra8 39.Qc1 Bc4 40.Rd1 Bd5 41.Be4 
Qe6 42.Bxd5 cxd5 43.Rf4 Nd7 44.Bd4 Rac8 45.Rh4 Kf8 46.Qg5 f6 47.Qxg6 Ke7 
48.Rh7+ Kd6 49.Qg3+ Kc6 50.a4 bxa4 51.Qd3 Kd6 52.Qa6+ Rc6 53.Bc5+ Kc7 54.
Qa5+ Kc8 55.Qa8+ Kc7 56.Qxa4 Rg8 57.Qa2 Qf5 58.Qa5+ Kc8 59.Qa8+ 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.30"]
[Round "8"]
[White "Gheorghiu, Florin"]
[Black "Pieterse, Gert"]
[Result "1-0"]
[WhiteElo "2555"]
[BlackElo "2265"]
[ECO "A90"]
[EventDate "1986.07.22"]
[PlyCount "59"]

1.c4 e6 2.Nf3 d5 3.d4 c6 4.Qc2 Bd6 5.g3 f5 6.Bg2 Nf6 7.Bf4 Bxf4 8.gxf4 O-O
9.e3 Ne4 10.Nbd2 Nxd2 11.Qxd2 Nd7 12.cxd5 cxd5 13.O-O-O Nb6 14.Ne5 Qd6 15.
Kb1 Bd7 16.Rc1 Rfc8 17.Qa5 a6 18.Rc5 Bb5 19.Rhc1 Nc4 20.Qb4 Qf8 21.Nxc4 
Bxc4 22.Qxb7 Rxc5 23.dxc5 Rb8 24.Qc7 Rc8 25.Qd7 Qxc5 26.Qxe6+ Kh8 27.Ka1 
Rb8 28.Qe5 Rf8 29.b3 Qa3 30.Qb2 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.30"]
[Round "8"]
[White "Marjanovic, Slavoljub"]
[Black "Kuijf, Marinus"]
[Result "1-0"]
[WhiteElo "2515"]
[BlackElo "2430"]
[ECO "D12"]
[EventDate "1986.07.22"]
[PlyCount "79"]

1.d4 d5 2.Nf3 Nf6 3.e3 Bf5 4.c4 e6 5.Nc3 c6 6.Bd3 Bxd3 7.Qxd3 Bb4 8.O-O 
Nbd7 9.Bd2 Bxc3 10.Bxc3 O-O 11.Nd2 c5 12.Rac1 Rc8 13.Rfd1 dxc4 14.Nxc4 b5 
15.Nd6 c4 16.Qd2 Rb8 17.Ba5 Qe7 18.Bc7 a6 19.b3 cxb3 20.axb3 Ra8 21.e4 b4 
22.Rc6 a5 23.Qc2 Nb8 24.Rc4 Na6 25.e5 Nd5 26.Bxa5 f5 27.Qd3 Qd7 28.Rdc1 h6
29.h3 Kh8 30.Rc6 Nb8 31.Rc8 Rxc8 32.Rxc8+ Kh7 33.Rd8 Qa7 34.Nxf5 g6 35.Nh4
Qf7 36.Nxg6 Rxa5 37.Ne7+ Kg7 38.Qg3+ Kh7 39.Nxd5 Rxd5 40.Qd3+ 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.30"]
[Round "8"]
[White "Piket, Jeroen"]
[Black "Braga, Fernando Alberto"]
[Result "1/2-1/2"]
[WhiteElo "2390"]
[BlackElo "2480"]
[ECO "D24"]
[EventDate "1986.07.22"]
[PlyCount "40"]

1.d4 d5 2.Nf3 Nf6 3.c4 dxc4 4.Nc3 c5 5.d5 e6 6.e4 exd5 7.e5 Nfd7 8.Bg5 Be7
9.Bxe7 Qxe7 10.Nxd5 Qd8 11.Bxc4 Nc6 12.O-O O-O 13.Re1 Nb6 14.Nxb6 axb6 15.
Qxd8 Nxd8 16.Rad1 Be6 17.Bxe6 Nxe6 18.Rd6 Rxa2 19.Rxb6 Rb8 20.g3 Ra6 
1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.30"]
[Round "8"]
[White "Boersma, Paulus"]
[Black "Peelen, Piet"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2395"]
[ECO "A16"]
[EventDate "1986.07.22"]
[PlyCount "116"]

1.Nf3 Nf6 2.c4 g6 3.Nc3 d5 4.Qa4+ Bd7 5.Qb3 dxc4 6.Qxc4 Bg7 7.e4 Bc6 8.Be2
O-O 9.d3 Nbd7 10.e5 Nh5 11.d4 Nb6 12.Qc5 Qd7 13.O-O Rad8 14.Be3 f5 15.Rac1
e6 16.Rfd1 f4 17.Bd2 Rf5 18.Bb5 Bf8 19.Bxc6 bxc6 20.Qa5 Nc4 21.Qa6 Nxb2 
22.Rf1 c5 23.Rb1 cxd4 24.Ne4 Na4 25.Rfc1 Nb6 26.Qxa7 Qd5 27.Qxc7 Na8 28.
Qc6 Qxa2 29.Rb7 Qd5 30.Qxd5 exd5 31.Neg5 h6 32.Ne6 Re8 33.Nexd4 Rf7 34.
Rcb1 Nc7 35.Rb8 Rxb8 36.Rxb8 g5 37.h3 Ng7 38.Bb4 Nge6 39.Kf1 Kg7 40.Bxf8+ 
Rxf8 41.Nxe6+ Nxe6 42.Rb7+ Rf7 43.Rb5 Rd7 44.Rb6 Kf7 45.Ke2 h5 46.Kd3 g4 
47.hxg4 hxg4 48.Nd4 Nc5+ 49.Ke2 Re7 50.Rf6+ Kg8 51.e6 f3+ 52.gxf3 Kg7 53.
Rf4 gxf3+ 54.Kxf3 Kg6 55.Rg4+ Kf6 56.Rh4 Kg5 57.Rg4+ Kf6 58.Rf4+ Kg6 
1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.30"]
[Round "8"]
[White "Hartoch, Robert"]
[Black "Pliester, Leon"]
[Result "1/2-1/2"]
[WhiteElo "2370"]
[BlackElo "2380"]
[ECO "A49"]
[EventDate "1986.07.22"]
[PlyCount "83"]

1.Nf3 Nf6 2.g3 g6 3.b3 Bg7 4.Bb2 O-O 5.Bg2 d6 6.d4 c6 7.O-O a5 8.c4 a4 9.
bxa4 Qa5 10.Nfd2 Qxa4 11.Qxa4 Rxa4 12.Nc3 Ra7 13.a4 Ng4 14.Nb3 f5 15.a5 e5
16.d5 e4 17.Na4 Bxb2 18.Nxb2 Ne5 19.Rfd1 c5 20.Nd2 Bd7 21.f4 exf3 22.exf3 
Na6 23.f4 Ng4 24.Re1 Nb4 25.h3 Nf6 26.Rec1 Re8 27.Kf2 Kf7 28.Nb3 h5 29.Rc3
h4 30.gxh4 Nh5 31.Bf1 Nxf4 32.Rd1 Raa8 33.Rf3 Nh5 34.Nd3 Nxd3+ 35.Bxd3 Nf6
36.Rb1 Bc8 37.Re3 Rxe3 38.Kxe3 Bd7 39.Nd2 Re8+ 40.Kf2 Bc8 41.Nf3 Rh8 42.
Re1 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.30"]
[Round "8"]
[White "Brenninkmeijer, Joris"]
[Black "Chiburdanidze, Maia"]
[Result "0-1"]
[BlackElo "2435"]
[ECO "B08"]
[EventDate "1986.07.22"]
[PlyCount "100"]

1.d4 Nf6 2.Nf3 g6 3.Nc3 Bg7 4.e4 d6 5.h3 O-O 6.Be3 c6 7.a4 Nbd7 8.Be2 e5 
9.dxe5 dxe5 10.O-O Qe7 11.Nd2 Nc5 12.a5 Ne6 13.Na4 Rd8 14.Bf3 h6 15.c3 Nh7
16.g3 f5 17.exf5 gxf5 18.Qe2 f4 19.gxf4 exf4 20.Bxf4 Qf6 21.Bg3 Rxd2 22.
Qxd2 Qxf3 23.Qd1 Qf5 24.Qg4 Qf7 25.f4 Nd4 26.f5 h5 27.Qg6 Nxf5 28.Qxf7+ 
Kxf7 29.Rad1 Bf6 30.Bf4 Be7 31.Be3 Nf6 32.Rf3 Be6 33.Bc5 Rg8+ 34.Kh2 Bd8 
35.Bf2 Bc7+ 36.Kh1 Bb3 37.Rd2 Kg6 38.c4 Bxa5 39.Nc3 Bxc4 40.Bxa7 Bxc3 41.
Rxc3 Bd5+ 42.Kh2 Kf7 43.Rf2 Ke6 44.Rc1 Ne4 45.Re1 h4 46.Rf4 Ke5 47.Rg4 Ra8
48.Bf2 Rh8 49.Kg2 Kf6 50.Kg1 Ng5 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.30"]
[Round "8"]
[White "De Boer, Gert Jan"]
[Black "Blees, Albert"]
[Result "1/2-1/2"]
[WhiteElo "2440"]
[BlackElo "2360"]
[ECO "A70"]
[EventDate "1986.07.22"]
[PlyCount "111"]

1.d4 Nf6 2.Nf3 e6 3.c4 c5 4.d5 exd5 5.cxd5 d6 6.Nc3 g6 7.Bf4 Bg7 8.Qa4+ 
Bd7 9.Qb3 Qc7 10.e4 O-O 11.Nd2 Nh5 12.Be3 f5 13.exf5 gxf5 14.Be2 Be8 15.
Nf3 h6 16.O-O Nd7 17.Rfe1 a6 18.a4 Ne5 19.Nxe5 Bxe5 20.Bxh6 Rf6 21.Bg5 Rg6
22.h4 Rg7 23.Bf3 Qf7 24.Rad1 Nf6 25.Ne2 Rc8 26.Qc2 Bd7 27.g3 Ne4 28.Bf4 
Qf6 29.Bxe5 Qxe5 30.Nc3 Qf6 31.Bxe4 fxe4 32.Qxe4 Re8 33.Qc4 Rxe1+ 34.Rxe1 
Rg4 35.Re4 Qxh4 36.Rxg4+ Qxg4 37.Qxg4+ Bxg4 38.Kg2 b6 39.f3 Bd7 40.g4 Kf7 
41.Kg3 b5 42.axb5 axb5 43.f4 b4 44.Ne4 Ke7 45.f5 Be8 46.g5 Bf7 47.g6 Bxd5 
48.f6+ Ke6 49.f7 Ke7 50.Nxd6 c4 51.Kf4 c3 52.bxc3 bxc3 53.Ke3 c2 54.Kd2 
Bb3 55.Kc1 Kf8 56.Kb2 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.30"]
[Round "8"]
[White "Meulders, Richard"]
[Black "Langeweg, Christian"]
[Result "0-1"]
[WhiteElo "2370"]
[BlackElo "2400"]
[ECO "A47"]
[EventDate "1986.07.22"]
[PlyCount "88"]

1.d4 Nf6 2.Nf3 e6 3.e3 b6 4.Bd3 Bb7 5.Nbd2 c5 6.O-O Be7 7.b3 O-O 8.Bb2 
cxd4 9.exd4 Nc6 10.a3 Re8 11.Re1 Rc8 12.Qe2 Nd5 13.g3 Nf6 14.Rac1 Bf8 15.
Qf1 Ne7 16.Qh3 Ng6 17.Ne5 d6 18.Nxg6 hxg6 19.Re2 Nh5 20.Rce1 Qg5 21.Ne4 
Qh6 22.Qf1 Nf6 23.Bc1 Qh5 24.Ng5 Nh7 25.Nxh7 Qxh7 26.f4 Qh5 27.c4 Red8 28.
b4 b5 29.cxb5 Qd5 30.Re4 f5 31.Bb2 fxe4 32.Bxe4 Qxe4 33.Rxe4 Bxe4 34.d5 
Rc2 35.Qa1 Rg2+ 36.Kf1 Rxh2 37.Bd4 Rh1+ 38.Bg1 Bxd5 39.Qc3 Be7 40.Qc7 Bf6 
41.Qxa7 Rc8 42.Ke2 Rc2+ 43.Kd3 Rc3+ 44.Kd2 Rxg3 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.30"]
[Round "8"]
[White "Piket, Marcel"]
[Black "Weemaes, Ronald"]
[Result "1/2-1/2"]
[WhiteElo "2375"]
[BlackElo "2335"]
[ECO "A80"]
[EventDate "1986.07.22"]
[PlyCount "46"]

1.d4 f5 2.g4 fxg4 3.e4 d6 4.h3 Nf6 5.Nc3 e5 6.d5 Be7 7.hxg4 Bxg4 8.f3 Bc8 
9.Be3 Nbd7 10.Qd2 c5 11.dxc6 bxc6 12.Bc4 Nb6 13.Bb3 Ba6 14.Bg5 d5 15.Qh2 
d4 16.Qxe5 dxc3 17.Rd1 Nbd7 18.Qe6 Qc7 19.Ne2 Rf8 20.Bf4 Nc5 21.Bxc7 Nxe6 
22.Bxe6 cxb2 23.Ng3 Bb4+ 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.30"]
[Round "8"]
[White "Rivas Pastor, Manuel"]
[Black "Kremer, Mark"]
[Result "1/2-1/2"]
[WhiteElo "2470"]
[ECO "A47"]
[EventDate "1986.07.22"]
[PlyCount "29"]

1.Nf3 c5 2.c4 Nf6 3.Nc3 b6 4.e3 g6 5.d4 Bg7 6.Be2 cxd4 7.exd4 d5 8.Ne5 O-O
9.O-O Bb7 10.Bf3 Na6 11.Re1 Nc7 12.Qa4 Qe8 13.Qa3 Qc8 14.Qxe7 dxc4 15.Bg5 
1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.07.30"]
[Round "8"]
[White "Bezemer, Arno"]
[Black "Sehner, Norbert"]
[Result "0-1"]
[BlackElo "2390"]
[ECO "B76"]
[EventDate "1986.07.22"]
[PlyCount "52"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 Nc6 8.Qd2 
O-O 9.g4 Nxd4 10.Bxd4 Be6 11.O-O-O Qa5 12.a3 Rfc8 13.h4 Rab8 14.h5 b5 15.
h6 b4 16.hxg7 bxa3 17.Nb5 Rxb5 18.Bxb5 Qxb5 19.bxa3 Qa4 20.Rh2 Qxa3+ 21.
Bb2 Qxf3 22.Rf2 Qxe4 23.Bxf6 exf6 24.Qxd6 Kxg7 25.Qe7 Qe3+ 26.Rfd2 Rc5 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.08.01"]
[Round "9"]
[White "Smejkal, Jan"]
[Black "Murey, Jacob"]
[Result "1-0"]
[WhiteElo "2540"]
[BlackElo "2490"]
[ECO "D41"]
[EventDate "1986.07.22"]
[PlyCount "121"]

1.c4 e6 2.Nf3 d5 3.d4 Nf6 4.Nc3 c5 5.cxd5 cxd4 6.Qxd4 Nxd5 7.e4 Nc6 8.Bb5 
Nxc3 9.Bxc6+ bxc6 10.Qxc3 c5 11.O-O Bb7 12.Re1 Qb6 13.Bf4 f6 14.Nd2 Be7 
15.Nc4 Qb4 16.Rac1 Qxc3 17.Rxc3 e5 18.Bd2 Kf7 19.f3 Ba6 20.Rec1 Rhb8 21.b3
Bb5 22.Ne3 a5 23.Nd5 a4 24.Be3 axb3 25.axb3 Bd7 26.Rd3 Be6 27.Nxe7 Kxe7 
28.Bxc5+ Kf7 29.b4 Ra2 30.Rcd1 h5 31.h4 Rba8 32.R3d2 Rxd2 33.Rxd2 Ra1+ 34.
Kh2 Ra2 35.Rd1 Bc4 36.Kg1 Bb5 37.Bf2 Rb2 38.Be1 Ke6 39.Rd5 Bc4 40.Rc5 Rc2 
41.Rc7 Rc1 42.Kf2 Rc2+ 43.Kg3 g5 44.hxg5 fxg5 45.b5 Bd3 46.Rxc2 Bxc2 47.b6
Kd6 48.Bd2 g4 49.fxg4 hxg4 50.Kxg4 Bxe4 51.g3 Bb7 52.Kg5 Kc5 53.Be3+ Kd6 
54.g4 Bc8 55.Kh5 Ke7 56.Kg6 Ke6 57.g5 Bb7 58.Kg7 Be4 59.g6 Kf5 60.Bc1 Bd5 
61.Kh7 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.08.01"]
[Round "9"]
[White "Geller, Efim"]
[Black "Eslon, Jaan"]
[Result "1-0"]
[WhiteElo "2490"]
[BlackElo "2415"]
[ECO "C99"]
[EventDate "1986.07.22"]
[PlyCount "115"]

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 Bb7 14.d5 Bc8 15.Re3 Nb7
16.Rc3 Qb8 17.Nb3 Bd7 18.Be3 Rc8 19.Rxc8+ Qxc8 20.a4 bxa4 21.Nbd2 Nc5 22.
Bxc5 Qxc5 23.Bxa4 Bb5 24.Bxb5 Qxb5 25.Qc2 Bf8 26.b3 Rb8 27.Qc4 Qxc4 28.
bxc4 Nd7 29.Rxa6 Rb2 30.Ra8 Nc5 31.Kf1 h6 32.Ke1 g6 33.Kd1 Kg7 34.Ra7 Kg8 
35.g4 Nd3 36.Ne1 Nxf2+ 37.Kc1 Rb8 38.Ra3 f5 39.gxf5 gxf5 40.Rg3+ Kh7 41.
exf5 e4 42.Rg6 Ra8 43.Nc2 Be7 44.Rg2 Nd3+ 45.Kd1 Nc5 46.Re2 Rg8 47.Nxe4 
Rg1+ 48.Kd2 Nxe4+ 49.Rxe4 Bg5+ 50.Kc3 Rg3+ 51.Kb4 Rxh3 52.Nd4 Bf6 53.Nb5 
Be5 54.c5 dxc5+ 55.Kxc5 Bh2 56.d6 Rf3 57.d7 Rxf5+ 58.Kc4 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.08.01"]
[Round "9"]
[White "Dolmatov, Sergei"]
[Black "Douven, Rudy"]
[Result "1-0"]
[WhiteElo "2510"]
[BlackElo "2415"]
[ECO "B22"]
[EventDate "1986.07.22"]
[PlyCount "101"]

1.e4 c6 2.c4 d5 3.exd5 cxd5 4.cxd5 Qxd5 5.Nc3 Qd6 6.d4 e6 7.Nf3 Nf6 8.Bd3 
Be7 9.O-O O-O 10.a3 Nc6 11.Bc2 Rd8 12.Be3 Bd7 13.Qd3 Be8 14.Rad1 Rac8 15.
Rfe1 g6 16.Bb3 Na5 17.Ba2 Bc6 18.Ne5 Bd5 19.Bxd5 Nxd5 20.Bh6 Nc6 21.Qf3 
Nxe5 22.dxe5 Qc6 23.Nxd5 Rxd5 24.Rxd5 exd5 25.h4 Qe6 26.g3 Bf8 27.Bf4 h5 
28.Rd1 Rd8 29.Rc1 Be7 30.Qb3 Rd7 31.Qc3 Rd8 32.Qc7 Qd7 33.Qxd7 Rxd7 34.
Rc8+ Kg7 35.Kf1 b6 36.Ke2 Rb7 37.Kd3 Rd7 38.f3 a5 39.Rb8 Bd8 40.Kd4 Bc7 
41.Rb7 Kf8 42.Kd3 Ke7 43.e6 Bxf4 44.exd7 Bxg3 45.Kd4 Bxh4 46.Kxd5 g5 47.
Kc6 g4 48.fxg4 hxg4 49.Rb8 Ke6 50.Rh8 Bf6 51.Rh6 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.08.01"]
[Round "9"]
[White "Ree, Hans"]
[Black "Zapata Ramirez, Alonso"]
[Result "1/2-1/2"]
[WhiteElo "2450"]
[BlackElo "2495"]
[ECO "E94"]
[EventDate "1986.07.22"]
[PlyCount "28"]

1.d4 Nf6 2.c4 d6 3.Nf3 Nbd7 4.Nc3 c6 5.e4 e5 6.Be2 g6 7.O-O Bg7 8.d5 cxd5 
9.cxd5 O-O 10.Nd2 Bh6 11.Nc4 Bxc1 12.Rxc1 Nc5 13.f3 Nh5 14.g3 f5 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.08.01"]
[Round "9"]
[White "Martinovic, Slobodan"]
[Black "Marjanovic, Slavoljub"]
[Result "1/2-1/2"]
[WhiteElo "2425"]
[BlackElo "2515"]
[ECO "B47"]
[EventDate "1986.07.22"]
[PlyCount "142"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.g3 a6 7.Bg2 d6 8.Nxc6 
bxc6 9.O-O Bb7 10.Na4 c5 11.c4 Be7 12.Be3 Rb8 13.Nc3 Bf6 14.Qd2 h6 15.Rad1
Rd8 16.Ne2 Bc6 17.b3 Qb7 18.f3 Be7 19.Qc3 Nf6 20.e5 dxe5 21.Rxd8+ Bxd8 22.
Bxc5 Nd7 23.Bd6 h5 24.h3 h4 25.g4 f6 26.Rf2 Qa7 27.b4 g5 28.c5 Qb7 29.Qc4 
Kf7 30.Nc3 Be7 31.Bxe7 Kxe7 32.a3 Rd8 33.Ne4 Bxe4 34.Qxe4 Qxe4 35.fxe4 Nb8
36.Bf1 Rd1 37.Kg2 Ra1 38.Rf3 Ra2+ 39.Kg1 Nc6 40.Bxa6 Nd4 41.Rc3 Kd7 42.Kf1
Ra1+ 43.Kf2 Ra2+ 44.Ke1 Nc2+ 45.Kd1 Nxb4 46.axb4 Rxa6 47.b5 Ra4 48.c6+ Kc8
49.b6 Rb4 50.b7+ Kc7 51.Kd2 Rb2+ 52.Kd3 Rb4 53.Rc4 Rb3+ 54.Kc2 Rb5 55.Kc3 
Rb6 56.Rc5 Rb1 57.Kc4 Rb6 58.Kd3 Rb3+ 59.Kc2 Rb4 60.Kd2 Rb2+ 61.Kc3 Rb1 
62.Rc4 Rb6 63.Kc2 Rb5 64.Kc1 Rb3 65.Kd2 Rb2+ 66.Kd3 Rb3+ 67.Rc3 Rb2 68.Rc1
Rb3+ 69.Kd2 Rb2+ 70.Rc2 Rb3 71.Rc3 Rb2+ 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.08.01"]
[Round "9"]
[White "Braga, Fernando Alberto"]
[Black "De Boer, Gert Jan"]
[Result "1-0"]
[WhiteElo "2480"]
[BlackElo "2440"]
[ECO "B85"]
[EventDate "1986.07.22"]
[PlyCount "67"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Be7 7.O-O O-O 8.f4 
Nc6 9.Be3 Qc7 10.Kh1 Nxd4 11.Qxd4 a6 12.a4 Bd7 13.e5 Ne8 14.Ne4 Bc6 15.Bd3
Rd8 16.Qa7 f5 17.Bb6 Qb8 18.Qxb8 Rxb8 19.exd6 Nxd6 20.Nc5 Rf6 21.Rfe1 Kf7 
22.Rad1 Rg8 23.Bc7 Ne8 24.Nxe6 Rxe6 25.Rxe6 Nxc7 26.Re5 Rf8 27.Rxf5+ Bf6 
28.Bc4+ Ke7 29.b3 g6 30.Rc5 Bg7 31.b4 Rxf4 32.b5 Rxc4 33.bxc6 Rb4 34.Rd7+ 
1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.08.01"]
[Round "9"]
[White "Chiburdanidze, Maia"]
[Black "Gheorghiu, Florin"]
[Result "1/2-1/2"]
[WhiteElo "2435"]
[BlackElo "2555"]
[ECO "B52"]
[EventDate "1986.07.22"]
[PlyCount "33"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.O-O Nc6 6.b3 Nf6 7.Re1 g6 8.Bb2
Bg7 9.e5 dxe5 10.Nxe5 Nxe5 11.Bxe5 O-O 12.Nc3 Rfe8 13.d3 Nd5 14.Bxg7 Kxg7 
15.Nxd5 Qxd5 16.a4 Rad8 17.Qd2 1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.08.01"]
[Round "9"]
[White "Blees, Albert"]
[Black "Piket, Jeroen"]
[Result "1/2-1/2"]
[WhiteElo "2360"]
[BlackElo "2390"]
[EventDate "1986.07.22"]
[PlyCount "0"]

1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.08.01"]
[Round "9"]
[White "Kuijf, Marinus"]
[Black "Piket, Marcel"]
[Result "1-0"]
[WhiteElo "2430"]
[BlackElo "2375"]
[EventDate "1986.07.22"]
[PlyCount "0"]

1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.08.01"]
[Round "9"]
[White "Langeweg, Christian"]
[Black "Hartoch, Robert"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2370"]
[EventDate "1986.07.22"]
[PlyCount "0"]

1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.08.01"]
[Round "9"]
[White "Pliester, Leon"]
[Black "Mednis, Edmar John"]
[Result "0-1"]
[WhiteElo "2380"]
[BlackElo "2470"]
[ECO "E41"]
[EventDate "1986.07.22"]
[PlyCount "80"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Bd3 Nc6 6.Nf3 Bxc3+ 7.bxc3 d6 8.O-O 
e5 9.Ng5 O-O 10.f4 exd4 11.cxd4 h6 12.Nf3 cxd4 13.exd4 d5 14.Ba3 Re8 15.
Ne5 dxc4 16.Bxc4 Be6 17.Bxe6 Rxe6 18.f5 Re8 19.Bb2 Qb6 20.Nc4 Qb5 21.Rc1 
Rad8 22.Qd3 Qd5 23.Rcd1 b5 24.Ne3 Qxa2 25.Bc3 b4 26.Ba1 Ne5 27.dxe5 Rxd3 
28.Rxd3 Ne4 29.e6 fxe6 30.fxe6 Qxe6 31.Nf5 Nc3 32.Bxc3 bxc3 33.Rxc3 Rf8 
34.Rcf3 Qb6+ 35.Kh1 Kh7 36.h4 g6 37.Ne3 Rxf3 38.Rxf3 Qd4 39.g4 a5 40.Kg2 
a4 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.08.01"]
[Round "9"]
[White "Peelen, Piet"]
[Black "Brenninkmeijer, Joris"]
[Result "1/2-1/2"]
[WhiteElo "2395"]
[EventDate "1986.07.22"]
[PlyCount "0"]

1/2-1/2

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.08.01"]
[Round "9"]
[White "Meulders, Richard"]
[Black "Bezemer, Arno"]
[Result "1-0"]
[WhiteElo "2370"]
[ECO "A65"]
[EventDate "1986.07.22"]
[PlyCount "63"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f3 Bg7 8.Bg5 O-O 
9.Qd2 h6 10.Be3 a6 11.a4 Re8 12.Nge2 Kh7 13.Ng3 Nbd7 14.Be2 Rb8 15.O-O Ne5
16.h3 Re7 17.f4 Ned7 18.e5 dxe5 19.d6 Re8 20.f5 b6 21.Bc4 Rf8 22.Bxf7 gxf5
23.Nxf5 Rxf7 24.Bxh6 Qf8 25.Bxg7 Rxg7 26.Qh6+ Kg8 27.Nd5 Bb7 28.Nfe7+ Kf7 
29.Rxf6+ Nxf6 30.Qxf6+ Ke8 31.Qxe5 Kd8 32.d7 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.08.01"]
[Round "9"]
[White "Pieterse, Gert"]
[Black "Boersma, Paulus"]
[Result "0-1"]
[WhiteElo "2265"]
[BlackElo "2400"]
[ECO "D07"]
[EventDate "1986.07.22"]
[PlyCount "106"]

1.d4 d5 2.c4 Nc6 3.Nc3 dxc4 4.Nf3 Nf6 5.Bg5 a6 6.d5 Na7 7.e4 Nb5 8.Qc2 
Nxc3 9.bxc3 b5 10.a4 Bb7 11.Nd4 Nxd5 12.exd5 Qxd5 13.Nf3 e5 14.Rd1 Qe4+ 
15.Qxe4 Bxe4 16.Ra1 Bd6 17.axb5 axb5 18.Rxa8+ Bxa8 19.Be2 Kd7 20.O-O Bd5 
21.Rd1 Ke6 22.Be3 h6 23.Ne1 Be4 24.Ra1 Ra8 25.Rxa8 Bxa8 26.f3 f5 27.Nc2 f4
28.Bf2 g5 29.Bd1 Kd7 30.h3 Bd5 31.Nb4 Be6 32.Bc2 c5 33.Na6 Kc6 34.Be4+ Kb6
35.Nb4 Ka5 36.Nc6+ Ka4 37.Be1 b4 38.Bd2 Ka3 39.Nd8 Bg8 40.Nb7 Be7 41.Bc1+ 
Kb3 42.Kf1 Kxc3 43.Ke2 Kb3 44.Kd1 c3 45.Na5+ Ka4 46.Nc6 Bd6 47.Kc2 Bc4 48.
Nd8 Bc7 49.Nc6 Bf1 50.Ne7 c4 51.Nf5 Bb6 52.g4 Bd4 53.Nxd4 exd4 0-1

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.08.01"]
[Round "9"]
[White "Sehner, Norbert"]
[Black "Kremer, Mark"]
[Result "1-0"]
[WhiteElo "2390"]
[ECO "A13"]
[EventDate "1986.07.22"]
[PlyCount "109"]

1.c4 e6 2.g3 Nf6 3.Bg2 d5 4.Nf3 dxc4 5.Qa4+ Nbd7 6.Qxc4 c5 7.O-O a6 8.Qc2 
Be7 9.Nc3 Ra7 10.d4 b5 11.Be3 b4 12.Na4 Nd5 13.Bd2 cxd4 14.Nxd4 Rc7 15.Qd1
Bb7 16.a3 a5 17.Nb5 Rc8 18.axb4 axb4 19.Bf4 N7f6 20.Be5 Qd7 21.Na7 Ra8 22.
Qd4 Ba6 23.Nb6 Qxa7 24.Nxa8 Bc5 25.Rxa6 Bxd4 26.Rxa7 Bxa7 27.Ra1 Bc5 28.
Bxd5 Nxd5 29.Bxg7 Rg8 30.Be5 Rg5 31.Nc7+ Kd7 32.Nxd5 Rxe5 33.Nf4 Kc6 34.e3
Kb5 35.b3 Rg5 36.Ra8 Bd6 37.Ra7 Bxf4 38.exf4 Rd5 39.Rxf7 Rd3 40.Rxh7 Rxb3 
41.Re7 Rc3 42.Rb7+ Ka4 43.Ra7+ Kb3 44.h4 Rc5 45.Kg2 Kc4 46.Ra1 b3 47.g4 
Kd4 48.h5 b2 49.Rb1 Ke4 50.Rxb2 Kxf4 51.Rb4+ Kg5 52.Kg3 e5 53.Rb6 Rc3+ 54.
f3 e4 55.Rg6# 1-0

[Event "5th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1986.08.01"]
[Round "9"]
[White "Weemaes, Ronald"]
[Black "Rivas Pastor, Manuel"]
[Result "1/2-1/2"]
[WhiteElo "2335"]
[BlackElo "2470"]
[EventDate "1986.07.22"]
[PlyCount "0"]

1/2-1/2

