[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.07.30"]
[Round "1"]
[White "Tukmakov, Vladimir"]
[Black "Piket, Marcel"]
[Result "1-0"]
[WhiteElo "2520"]
[BlackElo "2350"]
[ECO "E62"]
[EventDate "1990.07.30"]
[PlyCount "83"]

1.d4 d6 2.Nf3 g6 3.g3 Bg7 4.Bg2 Nf6 5.O-O O-O 6.c4 Nc6 7.Nc3 Bf5 8.h3 Ne4 
9.Nd5 Bd7 10.Be3 e6 11.Nf4 f5 12.d5 e5 13.dxc6 exf4 14.cxb7 fxe3 15.Qd5+ 
Kh8 16.bxa8=Q exf2+ 17.Kh2 Qxa8 18.Qxa8 Rxa8 19.Ng5 Bxb2 20.Rad1 Ba4 21.
Rb1 Bd4 22.Nxe4 fxe4 23.Bxe4 Re8 24.Bf3 Bc2 25.Rb5 Bc5 26.Kg2 Bb6 27.Rxf2 
Bxf2 28.Kxf2 Re5 29.Bd5 Be4 30.Rb8+ Kg7 31.Rb7 Bxd5 32.cxd5 Rxd5 33.Rxc7+ 
Kf6 34.Rxa7 h5 35.a4 Rc5 36.a5 Rc3 37.h4 Ra3 38.a6 d5 39.Ra8 d4 40.a7 Kg7 
41.Ke1 Kh7 42.Kd2 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.07.30"]
[Round "1"]
[White "Anand, Viswanathan"]
[Black "Piket, Jeroen"]
[Result "1-0"]
[WhiteElo "2610"]
[BlackElo "2495"]
[ECO "B88"]
[EventDate "1990.07.30"]
[PlyCount "77"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 e6 7.Be3 a6 8.Bb3 
Be7 9.f4 O-O 10.Qf3 Qc7 11.O-O-O b5 12.g4 Nxd4 13.Rxd4 b4 14.Rxb4 d5 15.
Rd4 dxe4 16.Qe2 a5 17.g5 Nd7 18.Nxe4 Nb6 19.a4 Ba6 20.Qf2 Bc4 21.Bxc4 Nxc4
22.b3 Nxe3 23.Qxe3 e5 24.Rc4 Ba3+ 25.Kb1 exf4 26.Rxc7 fxe3 27.Re1 Rfe8 28.
Rc4 h6 29.Ka2 Bf8 30.gxh6 f5 31.hxg7 Bxg7 32.Nd6 Re5 33.Rf4 Rd8 34.Nc4 Re7
35.Rxe3 Rd1 36.c3 Bxc3 37.Rxc3 Re2+ 38.Nb2 Rdd2 39.Rg3+ 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.07.30"]
[Round "1"]
[White "Hansen, Curt"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "1/2-1/2"]
[WhiteElo "2560"]
[BlackElo "2440"]
[ECO "A13"]
[EventDate "1990.07.30"]
[PlyCount "59"]

1.c4 e6 2.g3 d5 3.Bg2 Nf6 4.Nf3 dxc4 5.Qc2 Nbd7 6.Qxc4 a6 7.Qc2 Bd6 8.Nc3 
O-O 9.d4 c5 10.O-O Qc7 11.dxc5 Nxc5 12.Bg5 Nce4 13.Rac1 Nxc3 14.Bxf6 gxf6 
15.Qxc3 Qxc3 16.Rxc3 Rd8 17.Rd1 Be7 18.Rxd8+ Bxd8 19.Nd2 Rb8 20.Rd3 Be7 
21.Nc4 b6 22.Bf3 a5 23.Rb3 Bb4 24.a3 b5 25.Nb6 Bc5 26.Nxc8 b4 27.axb4 axb4
28.Rd3 Rxc8 29.Rd7 Kf8 30.Bb7 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.07.30"]
[Round "1"]
[White "Stohl, Igor"]
[Black "Van Wely, Loek"]
[Result "1-0"]
[WhiteElo "2525"]
[BlackElo "2400"]
[ECO "E68"]
[EventDate "1990.07.30"]
[PlyCount "79"]

1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.Nc3 d6 6.Nf3 Nbd7 7.O-O e5 8.e4 h6 
9.Rb1 Nh7 10.Be3 Ng5 11.Ne1 c5 12.dxc5 dxc5 13.Nd5 Ne6 14.Qd2 Kh7 15.Nd3 
Nd4 16.f4 exf4 17.gxf4 Nb6 18.Rbc1 Bg4 19.Rf2 Rc8 20.Nxc5 Rxc5 21.Bxd4 
Nxc4 22.Qc3 Rxd5 23.exd5 Bxd4 24.Qxd4 Nd6 25.Re1 a6 26.Rc2 h5 27.Rcc1 h4 
28.h3 Bf5 29.Kh2 Kg8 30.Bf3 Nb5 31.Qd2 Qb6 32.Bg4 Bxg4 33.hxg4 Nd4 34.Qf2 
Rd8 35.Rcd1 Rxd5 36.Re4 Nf3+ 37.Qxf3 Rxd1 38.Qxd1 Qf2+ 39.Kh1 h3 40.Qe2 
1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.07.30"]
[Round "1"]
[White "Polgar, Zsuzsa"]
[Black "Martens, Martin"]
[Result "1/2-1/2"]
[WhiteElo "2510"]
[BlackElo "2325"]
[ECO "E11"]
[EventDate "1990.07.30"]
[PlyCount "78"]

1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Qe7 5.g3 Nc6 6.Nc3 Bxc3 7.Bxc3 d5 8.Bg2 
O-O 9.O-O Rd8 10.Rc1 Bd7 11.Nd2 Be8 12.Qb3 Rab8 13.e3 a5 14.a3 a4 15.Qa2 
Qd7 16.Rfd1 b5 17.cxb5 Rxb5 18.Qb1 Rb6 19.Qc2 Ra8 20.e4 Qd8 21.e5 Nd7 22.
Nf3 f5 23.exf6 Qxf6 24.Ne5 Ndxe5 25.dxe5 Qe7 26.Qe2 Rd8 27.Qg4 Ra8 28.h4 
Kh8 29.Qe2 Rd8 30.Qg4 Ra8 31.Bh3 Bf7 32.Re1 Qd7 33.Bg2 Na5 34.Bd4 Rc6 35.
Rcd1 Qe7 36.Bf1 Nb3 37.Be3 Bg6 38.Bg5 Qf7 39.Qb4 Rc2 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.07.30"]
[Round "1"]
[White "Psakhis, Lev"]
[Black "Serper, Grigory"]
[Result "1/2-1/2"]
[WhiteElo "2575"]
[BlackElo "2485"]
[ECO "E39"]
[EventDate "1990.07.30"]
[PlyCount "43"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 O-O 6.a3 Bxc5 7.Nf3 b6 8.Bg5 h6
9.Bh4 Bb7 10.e3 Be7 11.Be2 Nc6 12.O-O Rc8 13.Rfd1 Nh5 14.Bxe7 Qxe7 15.b4 
Nf6 16.Rd2 Rfd8 17.Rad1 d6 18.h3 a6 19.Qb3 Qc7 20.Rc2 Ne7 21.Na4 Ng6 22.
Rdc1 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.07.30"]
[Round "1"]
[White "Kuijf, Marinus"]
[Black "Fedorowicz, John"]
[Result "1/2-1/2"]
[WhiteElo "2445"]
[BlackElo "2565"]
[ECO "B50"]
[EventDate "1990.07.30"]
[PlyCount "84"]

1.e4 c5 2.Nf3 d6 3.c3 Nf6 4.Bd3 g6 5.O-O Bg7 6.Bb5+ Bd7 7.Bxd7+ Qxd7 8.Re1
Nc6 9.d4 cxd4 10.cxd4 d5 11.e5 Ne4 12.Nbd2 Nxd2 13.Bxd2 O-O 14.Be3 f6 15.
exf6 exf6 16.Rc1 Rac8 17.Qd2 g5 18.h3 h6 19.h4 Rfe8 20.hxg5 hxg5 21.Nh2 
Qf5 22.f3 Qg6 23.Ng4 Bf8 24.Bf2 Bd6 25.Rxe8+ Rxe8 26.Re1 Rxe1+ 27.Qxe1 Kf7
28.Qd1 Nb4 29.Ne3 Qd3 30.Qa4 Qb1+ 31.Nf1 Qxb2 32.Qd7+ Be7 33.Qxb7 Qxa2 34.
Ne3 Qa1+ 35.Kh2 Qa6 36.Qa8 Bd6+ 37.Bg3 Bxg3+ 38.Kxg3 Qd6+ 39.Kf2 Nd3+ 40.
Kg1 Qe6 41.Qxa7+ Kg6 42.Nf1 Qe1 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.07.30"]
[Round "1"]
[White "Visser, Yge"]
[Black "Brenninkmeijer, Joris"]
[Result "1/2-1/2"]
[WhiteElo "2340"]
[BlackElo "2510"]
[ECO "D14"]
[EventDate "1990.07.30"]
[PlyCount "119"]

1.Nf3 d5 2.d4 Nf6 3.c4 c6 4.cxd5 cxd5 5.Nc3 Nc6 6.Bf4 Bf5 7.e3 e6 8.Qb3 
Bb4 9.Bb5 O-O 10.Bxc6 Bxc3+ 11.Qxc3 Rc8 12.Ne5 bxc6 13.Rc1 Ne4 14.Qa3 f6 
15.Nd3 g5 16.Bg3 Rf7 17.Nc5 Nxc5 18.Rxc5 Rb7 19.O-O Qb6 20.b3 Qd8 21.Rfc1 
Qd7 22.Qa6 Rb6 23.Qe2 Bg6 24.h3 Kg7 25.Ra5 Rb5 26.Rxb5 cxb5 27.Rxc8 Qxc8 
28.Qxb5 Be8 29.Qb4 Kf7 30.Bb8 a5 31.Qb6 a4 32.Bd6 axb3 33.axb3 Qc6 34.Qa7+
Qd7 35.Qa3 Qb5 36.Bf8 Qb7 37.Qc5 Qd7 38.b4 Qb7 39.Bd6 Qc6 40.Kf1 Qa6+ 41.
Kg1 Qc6 42.Qa7+ Qd7 43.Qb8 Qb5 44.Qc7+ Qd7 45.Qc5 Qc6 46.f4 Qxc5 47.dxc5 
Kg6 48.Kf2 h5 49.fxg5 Kxg5 50.Be7 e5 51.Bd8 Bb5 52.h4+ Kf5 53.Kf3 Bd7 54.
Kf2 Bb5 55.g3 Be8 56.Ke2 Bb5+ 57.Kf3 Bd7 58.Ke2 Bb5+ 59.Kd2 Kg6 60.Bc7 
1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.07.30"]
[Round "1"]
[White "Bertholee, Rob"]
[Black "Hellers, Ferdinand"]
[Result "0-1"]
[WhiteElo "2360"]
[BlackElo "2520"]
[ECO "A16"]
[EventDate "1990.07.30"]
[PlyCount "88"]

1.c4 Nf6 2.Nc3 g6 3.g3 Bg7 4.Bg2 O-O 5.Nf3 d5 6.cxd5 Nxd5 7.O-O Nc6 8.Nxd5
Qxd5 9.d3 Qb5 10.Rb1 a5 11.b3 a4 12.Bb2 Bxb2 13.Rxb2 Be6 14.Qc1 axb3 15.
axb3 Ra3 16.b4 Ra2 17.Qh6 f6 18.Rfb1 Rxb2 19.Rxb2 Ra8 20.h4 Ra4 21.Qe3 Bd5
22.Qc5 Qxc5 23.bxc5 Rb4 24.Rxb4 Nxb4 25.Nd2 Bxg2 26.Kxg2 Kf7 27.Kf3 e5 28.
Nb3 Nc6 29.e4 Nd4+ 30.Nxd4 exd4 31.Ke2 Ke6 32.Kd2 Kd7 33.Kc2 Kc6 34.f4 h5 
35.Kb3 Kxc5 36.Ka4 b6 37.Kb3 c6 38.Ka4 Kd6 39.Kb4 b5 40.Kb3 c5 41.Kb2 c4 
42.dxc4 bxc4 43.Kc2 c3 44.Kd3 Kc5 0-1

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.07.30"]
[Round "1"]
[White "Nijboer, Friso"]
[Black "Dorfman, Iosif"]
[Result "0-1"]
[WhiteElo "2485"]
[BlackElo "2580"]
[ECO "C96"]
[EventDate "1990.07.30"]
[PlyCount "112"]

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 Bb7 12.Nbd2 cxd4 13.cxd4 exd4 14.Nxd4 g6 15.b3 
Re8 16.Bb2 Bf8 17.Nf1 Nc6 18.Nxc6 Bxc6 19.Ng3 Bg7 20.Qd2 Bb7 21.Rad1 Rc8 
22.Bb1 h5 23.Qg5 Nh7 24.Qxd8 Rexd8 25.Bxg7 Kxg7 26.Rd4 Ng5 27.Red1 Ne6 28.
R4d2 Nf8 29.Ne2 Ne6 30.f3 h4 31.Kf2 b4 32.a3 bxa3 33.Ra2 Rc6 34.Rxa3 Rb6 
35.Bd3 d5 36.exd5 Rxd5 37.Nc3 Rd4 38.Bc4 Rxd1 39.Nxd1 Rd6 40.Nc3 Rd2+ 41.
Ke3 Rxg2 42.Bd5 Bc8 43.Ra4 g5 44.Bxe6 Bxe6 45.Rxa6 Bxh3 46.Ra2 Rxa2 47.
Nxa2 Be6 48.Nc1 Bd5 49.Ne2 Bxb3 50.f4 f6 51.Nd4 Bd5 52.Kf2 Kf7 53.Nf5 Ba8 
54.Kg1 Kg6 55.Ne7+ Kh5 56.Ng8 Kg4 0-1

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.07.30"]
[Round "1"]
[White "Dam, Ruurd"]
[Black "Uhlmann, Wolfgang"]
[Result "1/2-1/2"]
[WhiteElo "2270"]
[BlackElo "2505"]
[ECO "C09"]
[EventDate "1990.07.30"]
[PlyCount "72"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 exd5 5.Bb5+ Nc6 6.Ngf3 Bd6 7.dxc5 Bxc5 8.
O-O Ne7 9.Nb3 Bd6 10.Nbd4 O-O 11.Be3 Bg4 12.Be2 a6 13.c3 Bc7 14.h3 Bh5 15.
Qd2 Qd6 16.g3 Qd7 17.Kg2 Bg6 18.Nxc6 bxc6 19.Bd3 Nf5 20.Bc5 Rfe8 21.Rfe1 
a5 22.Rad1 Bd6 23.Bxd6 Nxd6 24.Ne5 Qb7 25.Nxg6 hxg6 26.Qf4 Red8 27.Rd2 c5 
28.Qf3 Re8 29.Rde2 Rxe2 30.Rxe2 c4 31.Bc2 Rd8 32.b3 Qc6 33.Rd2 Nb5 34.bxc4
Qxc4 35.Bb3 Qxc3 36.Rxd5 Qxf3+ 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.07.30"]
[Round "1"]
[White "Polgar, Zsofia"]
[Black "Polgar, Judit"]
[Result "1/2-1/2"]
[WhiteElo "2425"]
[BlackElo "2540"]
[ECO "C01"]
[EventDate "1990.07.30"]
[PlyCount "30"]

1.e4 e6 2.d4 d5 3.exd5 exd5 4.Bd3 Bd6 5.Ne2 Ne7 6.O-O O-O 7.Bf4 Bxf4 8.
Nxf4 Bf5 9.Nc3 c6 10.Bxf5 Nxf5 11.Qd3 Qg5 12.Nce2 Nd7 13.Ng3 Qxf4 14.Qxf5 
Qxf5 15.Nxf5 Rfe8 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.07.31"]
[Round "2"]
[White "Polgar, Judit"]
[Black "Kuijf, Marinus"]
[Result "1/2-1/2"]
[WhiteElo "2540"]
[BlackElo "2445"]
[ECO "C13"]
[EventDate "1990.07.30"]
[PlyCount "161"]

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 dxe4 5.Nxe4 Be7 6.Bxf6 gxf6 7.Nf3 f5 8.Ng3
Bf6 9.Qd2 c5 10.O-O-O cxd4 11.Bb5+ Nc6 12.Nh5 h6 13.Nxf6+ Qxf6 14.Nxd4 O-O
15.Bxc6 bxc6 16.Nxc6 Bb7 17.Qd4 Kg7 18.Na5 Bd5 19.f3 Rac8 20.a3 Rc7 21.Kb1
Rfc8 22.Qxf6+ Kxf6 23.Rc1 e5 24.Rhd1 Ke6 25.Rd2 e4 26.fxe4 fxe4 27.Rcd1 
Ba8 28.c4 f5 29.Rf1 Ke5 30.g3 h5 31.Rdf2 Rf7 32.Rf4 Rd8 33.c5 Bd5 34.Kc1 
Rg8 35.Kd2 Rc8 36.b4 Be6 37.Kc3 Rcc7 38.Rd1 Rfd7 39.Rff1 Rxd1 40.Rxd1 h4 
41.Nc4+ Kf6 42.Nd6 Ke5 43.Nc4+ Kf6 44.Nd6 Ke5 45.Nb5 Rg7 46.Rg1 hxg3 47.
hxg3 Bd5 48.Nd4 e3 49.Ne2 Bf3 50.Nf4 e2 51.Kd2 Rd7+ 52.Ke3 Rd1 53.Re1 Bg4 
54.Kf2 Rd2 55.Nxe2 Ra2 56.Kf1 Rxa3 57.Nc3+ Kf6 58.Re3 Ra1+ 59.Kf2 Rc1 60.
Nd5+ Kg5 61.Re7 a5 62.Rg7+ Kh6 63.Rc7 axb4 64.Nxb4 Rc3 65.Nd5 Rf3+ 66.Kg2 
Rd3 67.Nf4 Rd2+ 68.Kg1 Bf3 69.Rf7 Be4 70.c6 Rc2 71.c7 Bb7 72.Ne6 Bd5 73.
Rf6+ Kh7 74.Ng5+ Kg7 75.Rd6 Ba2 76.Rd2 Rc1+ 77.Kf2 Bb3 78.Rb2 Bd5 79.Rb5 
Kf6 80.Nh3 Be4 81.Rb6+ 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.07.31"]
[Round "2"]
[White "Brenninkmeijer, Joris"]
[Black "Polgar, Zsofia"]
[Result "1/2-1/2"]
[WhiteElo "2510"]
[BlackElo "2425"]
[ECO "D48"]
[EventDate "1990.07.30"]
[PlyCount "46"]

1.d4 d5 2.c4 e6 3.Nc3 c6 4.e3 Nf6 5.Nf3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 
Bb7 9.O-O a6 10.e4 c5 11.d5 c4 12.Bc2 Qc7 13.Qe2 Bd6 14.dxe6 fxe6 15.Ng5 
Nc5 16.f4 h6 17.Nf3 Nd3 18.Bxd3 cxd3 19.Qxd3 Rd8 20.Qe2 Bxf4 21.Bxf4 Qxf4 
22.a4 O-O 23.axb5 axb5 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.07.31"]
[Round "2"]
[White "Fedorowicz, John"]
[Black "Tukmakov, Vladimir"]
[Result "1-0"]
[WhiteElo "2565"]
[BlackElo "2520"]
[ECO "B67"]
[EventDate "1990.07.30"]
[PlyCount "53"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
Bd7 9.f4 b5 10.Bxf6 gxf6 11.Nxc6 Bxc6 12.Qe1 Be7 13.Bd3 Qb6 14.Kb1 b4 15.
Ne2 d5 16.Ng3 O-O-O 17.Qe2 dxe4 18.Nxe4 Kb8 19.f5 e5 20.Rhe1 Rd4 21.Qh5 
Qb7 22.Nd2 Bxg2 23.Qxf7 Bd8 24.Qe6 Qb6 25.Nb3 Rd6 26.Qf7 Bc7 27.Qg7 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.07.31"]
[Round "2"]
[White "Hellers, Ferdinand"]
[Black "Anand, Viswanathan"]
[Result "1/2-1/2"]
[WhiteElo "2520"]
[BlackElo "2610"]
[ECO "C65"]
[EventDate "1990.07.30"]
[PlyCount "95"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Bc5 5.c3 O-O 6.d4 Bb6 7.Bg5 d6 8.Qd3 Bd7
9.Nbd2 a6 10.Bc4 Qe7 11.Rfe1 h6 12.Bh4 Kh8 13.Bd5 Rad8 14.Nc4 Ba7 15.Bxc6 
Bxc6 16.dxe5 dxe5 17.Qc2 Bd7 18.Ncxe5 Be6 19.Nd3 g5 20.Bg3 Kg8 21.b3 Rfe8 
22.h3 Nh5 23.Bh2 Bb6 24.Rad1 Nf6 25.c4 Ba5 26.Re2 g4 27.hxg4 Bxg4 28.Nde5 
Bh5 29.Bf4 Rxd1+ 30.Qxd1 Rd8 31.Qc2 Ng4 32.Nxg4 Bxg4 33.Re3 Qf6 34.Be5 Qg6
35.Bc3 Bxc3 36.Rxc3 Qd6 37.Qc1 Bxf3 38.Rxf3 Qd1+ 39.Qxd1 Rxd1+ 40.Kh2 Rd2 
41.a3 Ra2 42.b4 Re2 43.Rd3 Rxe4 44.c5 a5 45.bxa5 Ra4 46.Rb3 Rxa5 47.Rxb7 
Rxc5 48.Rb2 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.07.31"]
[Round "2"]
[White "Uhlmann, Wolfgang"]
[Black "Visser, Yge"]
[Result "0-1"]
[WhiteElo "2505"]
[BlackElo "2340"]
[ECO "E75"]
[EventDate "1990.07.30"]
[PlyCount "124"]

1.c4 g6 2.e4 d6 3.d4 Nf6 4.Nc3 Bg7 5.Be2 O-O 6.Bg5 h6 7.Be3 c5 8.d5 e6 9.
Nf3 exd5 10.exd5 Ng4 11.Bd2 f5 12.O-O Nd7 13.Rb1 b6 14.b4 Nde5 15.bxc5 
bxc5 16.Qc1 g5 17.Nxe5 Bxe5 18.h3 Nf6 19.Bd3 Nh5 20.Re1 Qf6 21.Nb5 Rf7 22.
Bc3 Bxc3 23.Qxc3 Qxc3 24.Nxc3 Ng7 25.Rb3 Kf8 26.Reb1 a6 27.Rb8 Rxb8 28.
Rxb8 Rc7 29.Na4 Kf7 30.Nb6 Rb7 31.Rxc8 Rxb6 32.Ra8 f4 33.a4 Rb3 34.Bh7 Rc3
35.Ra7+ Kf6 36.Rxa6 Ke5 37.Ra7 Nf5 38.Ra8 Nd4 39.a5 Rxc4 40.Re8+ Kf6 41.a6
Ra4 42.Bd3 h5 43.Rg8 g4 44.Kh2 Ke5 45.Rh8 Kxd5 46.Rxh5+ Ke6 47.hxg4 c4 48.
Be4 c3 49.Rh8 Rxa6 50.Rc8 d5 51.Bd3 Rc6 52.Re8+ Kd7 53.Re1 c2 54.Rc1 Rc3 
55.Bh7 Ke6 56.g5 Kf7 57.f3 Kg7 58.Bxc2 Nxc2 59.g3 d4 60.gxf4 d3 61.Rb1 d2 
62.f5 Nb4 0-1

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.07.31"]
[Round "2"]
[White "Piket, Jeroen"]
[Black "Dam, Ruurd"]
[Result "1-0"]
[WhiteElo "2495"]
[BlackElo "2270"]
[ECO "E90"]
[EventDate "1990.07.30"]
[PlyCount "53"]

1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.Nc3 O-O 5.e4 d6 6.h3 e5 7.d5 Nbd7 8.Be3 Nc5 
9.Nd2 a5 10.g4 Ne8 11.Qe2 f5 12.gxf5 gxf5 13.O-O-O Ne6 14.dxe6 f4 15.Bc5 
dxc5 16.Nf3 Nd6 17.Rg1 Bxe6 18.Nxe5 Qe7 19.Qh5 Bf7 20.Nxf7 Nxf7 21.Nd5 Qd6
22.h4 Rae8 23.Bh3 c6 24.Bf5 Nh6 25.Nc7 Qe5 26.Rxg7+ Kxg7 27.Nxe8+ 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.07.31"]
[Round "2"]
[White "Serper, Grigory"]
[Black "Polgar, Zsuzsa"]
[Result "1/2-1/2"]
[WhiteElo "2485"]
[BlackElo "2510"]
[ECO "A37"]
[EventDate "1990.07.30"]
[PlyCount "54"]

1.c4 c5 2.Nf3 Nc6 3.Nc3 e5 4.g3 g6 5.Bg2 Bg7 6.O-O d6 7.a3 Be6 8.d3 Nge7 
9.Ng5 Bc8 10.b4 h6 11.Nge4 f5 12.Nd2 e4 13.Bb2 exd3 14.exd3 O-O 15.bxc5 
dxc5 16.Nb3 f4 17.Nxc5 Ne5 18.d4 Bg4 19.Nxb7 Qb8 20.Qb3 f3 21.Bh1 Nd3 22.
Rfd1 Nxb2 23.Qxb2 Bc8 24.Rab1 Bf5 25.Rbc1 Bc8 26.Rb1 Bf5 27.Rbc1 Bc8 
1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.07.31"]
[Round "2"]
[White "Dorfman, Iosif"]
[Black "Stohl, Igor"]
[Result "1/2-1/2"]
[WhiteElo "2580"]
[BlackElo "2525"]
[ECO "D76"]
[EventDate "1990.07.30"]
[PlyCount "31"]

1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 O-O 5.Bg2 d5 6.cxd5 Nxd5 7.O-O Nb6 8.Nc3 
Nc6 9.d5 Na5 10.e4 c6 11.Bg5 h6 12.Bf4 cxd5 13.exd5 Nac4 14.Qe2 e5 15.Bc1 
Re8 16.Nd2 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.07.31"]
[Round "2"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Psakhis, Lev"]
[Result "1/2-1/2"]
[WhiteElo "2440"]
[BlackElo "2575"]
[ECO "B80"]
[EventDate "1990.07.30"]
[PlyCount "69"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 d6 6.g3 Nf6 7.Bg2 Be7 8.O-O Qc7
9.Re1 O-O 10.Qd2 Nc6 11.Nce2 Rd8 12.b3 d5 13.Nxc6 bxc6 14.exd5 cxd5 15.Bb2
Bb7 16.Rac1 Rac8 17.Qe3 Qa5 18.Nf4 Ne4 19.Nd3 Bg5 20.f4 Bf6 21.Bxf6 Nxf6 
22.c4 dxc4 23.Bxb7 cxd3 24.Rxc8 Rxc8 25.Rd1 Ng4 26.Qxd3 Qb6+ 27.Qd4 Qxd4+ 
28.Rxd4 Rc1+ 29.Kg2 Rc2+ 30.Kg1 f5 31.h3 Rc1+ 32.Kg2 Rc2+ 33.Kg1 Rc1+ 34.
Kg2 Rc2+ 35.Kg1 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.07.31"]
[Round "2"]
[White "Van Wely, Loek"]
[Black "Bertholee, Rob"]
[Result "0-1"]
[WhiteElo "2400"]
[BlackElo "2360"]
[ECO "E20"]
[EventDate "1990.07.30"]
[PlyCount "65"]

1.d4 e6 2.c4 Bb4+ 3.Nc3 c5 4.Nf3 Nf6 5.g3 O-O 6.Bg2 cxd4 7.Nxd4 d5 8.cxd5 
Nxd5 9.Bd2 Nxc3 10.bxc3 Be7 11.Rb1 Qd7 12.O-O Na6 13.Be3 Rd8 14.Qc2 e5 15.
Nb5 Bc5 16.Rfd1 Qe7 17.Rxd8+ Qxd8 18.Rd1 Qe7 19.Qe4 Rb8 20.Nxa7 Bd7 21.Rd5
Bxe3 22.Qxe3 f6 23.Qb6 Be6 24.Ra5 Qd7 25.h4 Bc4 26.Kh2 Bxe2 27.Bd5+ Kh8 
28.c4 Nc7 29.Nc6 Re8 30.Qxb7 Qf5 31.Kg1 Nxd5 32.cxd5 Qh3 33.Qb1 0-1

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.07.31"]
[Round "2"]
[White "Martens, Martin"]
[Black "Hansen, Curt"]
[Result "0-1"]
[WhiteElo "2325"]
[BlackElo "2560"]
[ECO "B08"]
[EventDate "1990.07.30"]
[PlyCount "46"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.h3 O-O 6.Be3 a6 7.a4 b6 8.Bc4 e6 9.
d5 exd5 10.exd5 Nbd7 11.O-O Re8 12.Nd4 Bb7 13.Re1 Ne4 14.Nde2 Qh4 15.Ba2 
Ndc5 16.a5 b5 17.Nxe4 Rxe4 18.c3 Rae8 19.Qd2 Rxe3 20.fxe3 Ne4 21.Qc1 Qf2+ 
22.Kh1 Be5 23.c4 Qxe2 0-1

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.07.31"]
[Round "2"]
[White "Piket, Marcel"]
[Black "Nijboer, Friso"]
[Result "1/2-1/2"]
[WhiteElo "2350"]
[BlackElo "2485"]
[ECO "B08"]
[EventDate "1990.07.30"]
[PlyCount "38"]

1.d4 g6 2.e4 Bg7 3.Nc3 d6 4.Be3 c6 5.a4 Nf6 6.h3 O-O 7.Nf3 d5 8.e5 Ne4 9.
Bd3 Nxc3 10.bxc3 c5 11.O-O Nc6 12.Qd2 Qa5 13.Rfb1 cxd4 14.cxd4 Qxd2 15.
Bxd2 f6 16.Bb5 fxe5 17.Bxc6 bxc6 18.Nxe5 c5 19.c3 Bxe5 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.01"]
[Round "3"]
[White "Tukmakov, Vladimir"]
[Black "Serper, Grigory"]
[Result "1-0"]
[WhiteElo "2520"]
[BlackElo "2485"]
[ECO "D94"]
[EventDate "1990.07.30"]
[PlyCount "61"]

1.d4 Nf6 2.c4 c6 3.Nc3 d5 4.e3 g6 5.Nf3 Bg7 6.Bd3 O-O 7.O-O e6 8.e4 dxe4 
9.Nxe4 Nxe4 10.Bxe4 Qc7 11.Bg5 Nd7 12.c5 e5 13.Be7 Re8 14.Bd6 Qa5 15.Qb3 
Qd8 16.Bd3 e4 17.Bc4 exf3 18.Bxf7+ Kh8 19.Bxe8 Qxe8 20.Rfe1 Qg8 21.Qxg8+ 
Kxg8 22.Re8+ Kf7 23.Re7+ Kg8 24.Re8+ Kf7 25.Rae1 Bf6 26.g4 a5 27.h3 h5 28.
Kh2 h4 29.R8e3 Bg5 30.Rxf3+ Nf6 31.Re5 {Ftacnik,L} 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.01"]
[Round "3"]
[White "Anand, Viswanathan"]
[Black "Fedorowicz, John"]
[Result "0-1"]
[WhiteElo "2610"]
[BlackElo "2565"]
[ECO "B74"]
[EventDate "1990.07.30"]
[PlyCount "92"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.f4 g6 7.Be2 Bg7 8.Be3 
O-O 9.Nb3 Be6 10.O-O Qc8 11.Kh1 Bg4 12.Bg1 Rd8 13.Nd5 Bxe2 14.Qxe2 e6 15.
Nxf6+ Bxf6 16.c3 Bg7 17.Rad1 Rb8 18.Bf2 b5 19.Bh4 Rd7 20.Rd3 a5 21.Qd1 Bf8
22.Bf6 a4 23.Nc5 Ra7 24.Rxd6 Bxd6 25.Qxd6 Na5 26.f5 Nc4 27.Qg3 Rba8 28.
Nxe6 fxe6 29.fxg6 h6 30.Qh3 Rg7 31.Bxg7 Kxg7 32.Rf7+ Kxg6 33.Re7 Kf6 34.
Qh4+ Ke5 35.Rf7 Kd6 36.e5+ Kc6 37.Qe4+ Kb6 38.h3 Qc6 39.Qd4+ Ka6 40.Rd7 
Qb6 41.Qxb6+ Kxb6 42.b3 axb3 43.axb3 Nxe5 44.Rd6+ Nc6 45.Rxe6 Ra3 46.Rxh6 
Rxb3 0-1

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.01"]
[Round "3"]
[White "Hansen, Curt"]
[Black "Hellers, Ferdinand"]
[Result "1-0"]
[WhiteElo "2560"]
[BlackElo "2520"]
[ECO "A39"]
[EventDate "1990.07.30"]
[PlyCount "57"]

1.c4 Nf6 2.Nc3 c5 3.g3 g6 4.Bg2 Bg7 5.Nf3 O-O 6.d4 cxd4 7.Nxd4 Nc6 8.O-O 
Ng4 9.e3 d6 10.b3 Nxd4 11.exd4 Nh6 12.Bd2 Nf5 13.d5 a6 14.a4 Bd7 15.Re1 
Rb8 16.Bf1 Nd4 17.Ne4 e5 18.dxe6 Nxe6 19.Bb4 Bxa1 20.Qxa1 f5 21.Nxd6 Qb6 
22.Ba3 Qd4 23.Qc1 f4 24.Rd1 Qb6 25.c5 Qxb3 26.Bc4 Qf3 27.Rd3 Qh5 28.Qe1 
Qg4 29.f3 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.01"]
[Round "3"]
[White "Stohl, Igor"]
[Black "Psakhis, Lev"]
[Result "1-0"]
[WhiteElo "2525"]
[BlackElo "2575"]
[ECO "E32"]
[EventDate "1990.07.30"]
[PlyCount "75"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 O-O 5.a3 Bxc3+ 6.Qxc3 b6 7.Bg5 Bb7 8.Nh3 
h6 9.Bh4 d5 10.cxd5 exd5 11.e3 c5 12.dxc5 g5 13.Bg3 d4 14.Qxd4 Qxd4 15.
exd4 Re8+ 16.Be5 Nbd7 17.O-O-O Nxe5 18.dxe5 Rxe5 19.cxb6 Be4 20.b4 axb6 
21.Kb2 Rc8 22.Ba6 Rc2+ 23.Kb3 Rc7 24.Rhe1 b5 25.Rc1 Bxg2 26.Rxe5 Rxc1 27.
Nxg5 Rb1+ 28.Kc2 Rh1 29.Rf5 Ne4 30.Nxf7 Kg7 31.f3 Nf6 32.Nd6 Rxh2 33.Kb3 
h5 34.Bxb5 h4 35.Rg5+ Kf8 36.Rg6 Nh5 37.Nf5 Bxf3 38.Bc4 {Stohl,I} 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.01"]
[Round "3"]
[White "Polgar, Zsuzsa"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "1-0"]
[WhiteElo "2510"]
[BlackElo "2440"]
[ECO "D05"]
[EventDate "1990.07.30"]
[PlyCount "107"]

1.d4 Nf6 2.Nf3 e6 3.e3 c5 4.Bd3 Nc6 5.O-O Be7 6.b3 O-O 7.Bb2 d5 8.Nbd2 Qb6
9.c4 Nb4 10.Bb1 cxd4 11.Nxd4 Rd8 12.cxd5 Nbxd5 13.Nc4 Qc7 14.Qe2 Bd7 15.
Nf3 b5 16.Nce5 b4 17.Bd3 Nc3 18.Qc2 Bd6 19.Nc4 Bc6 20.Bxc3 bxc3 21.e4 Bf4 
22.Rfe1 Ng4 23.g3 Bd2 24.Nfxd2 cxd2 25.Qxd2 Bb5 26.Qe2 Qc5 27.Red1 Bxc4 
28.Bxc4 Ne5 29.Rac1 Rac8 30.Kg2 g6 31.Rc2 Rxd1 32.Qxd1 Qa5 33.Be2 Rxc2 34.
Qxc2 h5 35.h4 Qe1 36.Qd1 Qc3 37.Kf1 Qb2 38.a4 Qc3 39.Kg2 Qb4 40.Qc2 Qe1 
41.Qc7 Qxe2 42.Qxe5 a6 43.b4 Qc2 44.b5 axb5 45.axb5 Kh7 46.Qd4 Qe2 47.b6 
Qb5 48.Qd6 Qc4 49.Qf4 e5 50.Qxe5 Qb4 51.Qd5 Qxb6 52.Qxf7+ Kh8 53.e5 Qd4 
54.e6 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.01"]
[Round "3"]
[White "Kuijf, Marinus"]
[Black "Brenninkmeijer, Joris"]
[Result "0-1"]
[WhiteElo "2445"]
[BlackElo "2510"]
[ECO "A47"]
[EventDate "1990.07.30"]
[PlyCount "55"]

1.d4 Nf6 2.Nf3 e6 3.Bg5 c5 4.e3 Be7 5.Nbd2 O-O 6.c3 cxd4 7.exd4 b6 8.Bd3 
Bb7 9.O-O Nc6 10.Qc2 h6 11.Bxf6 Bxf6 12.Ne4 Be7 13.Qe2 Qc7 14.Rae1 Rae8 
15.Ng3 Bd6 16.Ne5 Ne7 17.Nh5 f5 18.Qe3 Bxe5 19.dxe5 Rc8 20.Qg3 Rf7 21.Re2 
Qc6 22.Rd1 f4 23.Qg4 Qxg2+ 24.Qxg2 Bxg2 25.Be4 Bxe4 26.Rxe4 Ng6 27.Rd3 Rf5
28.Rh3 0-1

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.01"]
[Round "3"]
[White "Visser, Yge"]
[Black "Dorfman, Iosif"]
[Result "1/2-1/2"]
[WhiteElo "2340"]
[BlackElo "2580"]
[ECO "A04"]
[EventDate "1990.07.30"]
[PlyCount "36"]

1.Nf3 c5 2.g3 b6 3.Bg2 Bb7 4.O-O g6 5.d3 Bg7 6.e4 e6 7.Re1 Ne7 8.c3 d6 9.
d4 O-O 10.dxc5 dxc5 11.Nbd2 Qd3 12.Bf1 Qd7 13.Qe2 Ba6 14.Nc4 Qa4 15.Qd1 
Qxd1 16.Rxd1 Nbc6 17.Bf4 h6 18.h4 Rad8 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.01"]
[Round "3"]
[White "Bertholee, Rob"]
[Black "Polgar, Judit"]
[Result "0-1"]
[WhiteElo "2360"]
[BlackElo "2540"]
[ECO "A34"]
[EventDate "1990.07.30"]
[PlyCount "86"]

1.c4 c5 2.Nc3 Nc6 3.Nf3 e5 4.e3 Nf6 5.d4 cxd4 6.exd4 e4 7.Ne5 Bb4 8.Be2 
Qa5 9.Nxc6 dxc6 10.O-O Bxc3 11.bxc3 Qxc3 12.Rb1 O-O 13.Rb3 Qa5 14.Rg3 Bf5 
15.h4 e3 16.Rxe3 Rfe8 17.Qb3 Qc7 18.h5 Bg4 19.Bxg4 Rxe3 20.Qxe3 Nxg4 21.
Qf4 Qxf4 22.Bxf4 Rd8 23.Rd1 h6 24.f3 Nf6 25.g4 b5 26.cxb5 cxb5 27.Be5 Nd5 
28.Rc1 f6 29.Bg3 b4 30.Rc5 Nc3 31.a3 Ne2+ 32.Kf2 Nxg3 33.Kxg3 Rxd4 34.Ra5 
b3 35.Rxa7 Rb4 36.axb4 b2 37.Ra5 b1=Q 38.Rf5 Qxb4 39.Kg2 Kf7 40.Kf2 Ke6 
41.Kg2 Qb2+ 42.Kg3 Qb1 43.Rf4 Qb8 0-1

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.01"]
[Round "3"]
[White "Nijboer, Friso"]
[Black "Uhlmann, Wolfgang"]
[Result "0-1"]
[WhiteElo "2485"]
[BlackElo "2505"]
[ECO "C09"]
[EventDate "1990.07.30"]
[PlyCount "98"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 exd5 5.Ngf3 Nc6 6.Be2 cxd4 7.O-O Be7 8.Nb3
Bf6 9.Nbxd4 Nge7 10.c3 O-O 11.Bf4 Bg4 12.h3 Bh5 13.Nb5 Bg6 14.Nd6 Qb6 15.
Qb3 d4 16.cxd4 Nxd4 17.Nxd4 Qxd4 18.Qc4 Nd5 19.Bg3 Qxb2 20.Bf3 Nc3 21.a4 
Rad8 22.Rfe1 h5 23.h4 b6 24.Rac1 Qa3 25.Qc6 Na2 26.Rcd1 Nb4 27.Qb5 Nc2 28.
Re4 Qc5 29.Qxc5 bxc5 30.Rc4 Nd4 31.Rxc5 Nxf3+ 32.gxf3 Rd7 33.Re1 Rfd8 34.
Ne4 Be7 35.Rc4 f6 36.Nc3 Bf7 37.Rc6 Bb4 38.Rb1 a5 39.Bf4 Rd3 40.Bc7 Rc8 
41.Nb5 Rxf3 42.Nd4 Bd5 43.Rcc1 Rh3 44.Bh2 Re8 45.Nf5 Be4 46.Rxb4 axb4 47.
Nd6 b3 48.Rc5 b2 49.Rb5 Bc6 0-1

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.01"]
[Round "3"]
[White "Van Wely, Loek"]
[Black "Martens, Martin"]
[Result "0-1"]
[WhiteElo "2400"]
[BlackElo "2325"]
[ECO "E06"]
[EventDate "1990.07.30"]
[PlyCount "84"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 Nc6 5.O-O d5 6.c4 Be7 7.cxd5 Nxd5 8.dxc5 
Bxc5 9.a3 Be7 10.b4 Bf6 11.Ra2 O-O 12.Qb3 Bd7 13.Rd1 Qe7 14.b5 Ne5 15.Nxe5
Bxe5 16.e4 Nf6 17.Nd2 Bd4 18.Nf3 Bc5 19.Ne5 Rfd8 20.a4 Be8 21.Nd3 Bd4 22.
Ba3 Qc7 23.Qb4 Kh8 24.Rc1 Qb6 25.e5 Ng8 26.Rc4 a5 27.Qe1 f6 28.exf6 Bxf6 
29.Nc5 Rab8 30.Nxe6 Bf7 31.Re2 Rdc8 32.Rc5 Re8 33.Bh3 Qd6 34.Re3 Bxe6 35.
Bxe6 Bd4 36.Rf5 Qb6 37.Re2 Nf6 38.h3 Rbd8 39.Bf7 Rxe2 40.Qxe2 Qc7 41.Bd5 
Qxg3+ 42.Bg2 Qxa3 0-1

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.01"]
[Round "3"]
[White "Dam, Ruurd"]
[Black "Piket, Marcel"]
[Result "0-1"]
[WhiteElo "2270"]
[BlackElo "2350"]
[ECO "B09"]
[EventDate "1990.07.30"]
[PlyCount "76"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.Bd3 Na6 7.e5 Ng4 8.h3 Nh6 
9.Ne4 Nb4 10.Be3 Nxd3+ 11.Qxd3 Bf5 12.g4 d5 13.gxf5 dxe4 14.Qxe4 Nxf5 15.
Bf2 e6 16.c4 c6 17.O-O Qe7 18.c5 Qd7 19.Nd2 Qd5 20.Qxd5 exd5 21.Kg2 Bh6 
22.Kf3 f6 23.Nb3 fxe5 24.dxe5 Rf7 25.Rae1 Raf8 26.e6 Re7 27.Re5 Ng7 28.Bg3
Rxe6 29.Rfe1 Ref6 30.Re7 Bxf4 31.Bxf4 Rxf4+ 32.Kg2 Rf2+ 33.Kg1 Rxb2 34.
Rxb7 Nf5 35.Rxa7 Nh4 36.Nd4 Rg2+ 37.Kh1 Rd2 38.Ne6 Nf3 0-1

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.01"]
[Round "3"]
[White "Polgar, Zsofia"]
[Black "Piket, Jeroen"]
[Result "0-1"]
[WhiteElo "2425"]
[BlackElo "2495"]
[ECO "B06"]
[EventDate "1990.07.30"]
[PlyCount "58"]

1.e4 d6 2.d4 g6 3.Nc3 c6 4.f4 d5 5.e5 h5 6.Nf3 Bg4 7.h3 Bxf3 8.Qxf3 e6 9.
g3 Qb6 10.a3 Ne7 11.Ne2 a5 12.g4 Nd7 13.Rb1 c5 14.Be3 Nc6 15.c3 cxd4 16.
Bxd4 Bc5 17.Bxc5 Nxc5 18.Bg2 hxg4 19.hxg4 Rxh1+ 20.Bxh1 g5 21.fxg5 Nxe5 
22.Qf6 Ncd3+ 23.Kd2 Nc4+ 24.Kxd3 Qe3+ 25.Kc2 Qxe2+ 26.Kb3 Ra6 27.Qh8+ Kd7 
28.Qh7 Rb6+ 29.Ka4 Nxb2+ 0-1

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.02"]
[Round "4"]
[White "Polgar, Judit"]
[Black "Visser, Yge"]
[Result "1-0"]
[WhiteElo "2540"]
[BlackElo "2340"]
[ECO "B04"]
[EventDate "1990.07.30"]
[PlyCount "95"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 dxe5 5.Nxe5 g6 6.Be2 Bg7 7.O-O Nd7 8.Nf3 
c6 9.c4 N5f6 10.Nc3 O-O 11.h3 Nb6 12.a4 Bf5 13.Bf4 Nc8 14.Qb3 Nd6 15.a5 
Qc8 16.Ne5 Nd7 17.g4 Be6 18.Nxd7 Bxd7 19.c5 Nb5 20.Nxb5 cxb5 21.Rfd1 a6 
22.Bf3 e6 23.Bd6 Re8 24.d5 exd5 25.Bxd5 Be6 26.Rd2 Qd7 27.Rad1 Rac8 28.Qf3
Bxd5 29.Rxd5 Qe6 30.b4 Qe2 31.Qxe2 Rxe2 32.Bg3 Bc3 33.Rd8+ Rxd8 34.Rxd8+ 
Kg7 35.Bd6 Kf6 36.Rd7 Bxb4 37.c6 bxc6 38.Bxb4 Rc2 39.Ra7 c5 40.Rc7 c4 41.
Rc6+ Ke5 42.Rxa6 Rc1+ 43.Kg2 Rb1 44.Bc3+ Kd5 45.Rb6 Kc5 46.Rb8 Rb3 47.Bg7 
Kc6 48.Rb6+ 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.02"]
[Round "4"]
[White "Brenninkmeijer, Joris"]
[Black "Polgar, Zsuzsa"]
[Result "1/2-1/2"]
[WhiteElo "2510"]
[BlackElo "2510"]
[ECO "D35"]
[EventDate "1990.07.30"]
[PlyCount "76"]

1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.cxd5 exd5 5.Bg5 c6 6.e3 Be7 7.Bd3 Nbd7 8.Nge2 
Nh5 9.Bxe7 Qxe7 10.g4 Nhf6 11.Ng3 g6 12.h3 Nb6 13.Qb3 Be6 14.a4 O-O 15.a5 
Nc4 16.Bxc4 dxc4 17.Qa3 Qxa3 18.bxa3 c5 19.O-O-O cxd4 20.Rxd4 Nd7 21.Nce4 
Ne5 22.f4 Nc6 23.Rd6 c3 24.a6 Na5 25.f5 Bc4 26.axb7 Nxb7 27.Rd7 Rab8 28.
Rhd1 Rfc8 29.Rxb7 Rxb7 30.Nd6 Rb2 31.Nxc8 Bb3 32.Rd8+ Kg7 33.f6+ Kxf6 34.
Ne4+ Kg7 35.Rd3 Rc2+ 36.Kb1 Rb2+ 37.Kc1 Rc2+ 38.Kb1 Rb2+ {Ftacnik,L} 
1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.02"]
[Round "4"]
[White "Fedorowicz, John"]
[Black "Stohl, Igor"]
[Result "1/2-1/2"]
[WhiteElo "2565"]
[BlackElo "2525"]
[ECO "D76"]
[EventDate "1990.07.30"]
[PlyCount "27"]

1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.Nc3 Nc6 6.Nf3 d5 7.cxd5 Nxd5 8.O-O 
Nb6 9.e3 Re8 10.Re1 e5 11.d5 Ne7 12.e4 Bg4 13.a4 c6 14.a5 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.02"]
[Round "4"]
[White "Hellers, Ferdinand"]
[Black "Martens, Martin"]
[Result "1-0"]
[WhiteElo "2520"]
[BlackElo "2325"]
[ECO "B81"]
[EventDate "1990.07.30"]
[PlyCount "103"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 Be7 7.g5 Nfd7 8.Be3 
Nc6 9.h4 O-O 10.Qd2 a6 11.O-O-O Nxd4 12.Qxd4 b5 13.Rg1 Rb8 14.h5 b4 15.Ne2
e5 16.Qd2 Nc5 17.f3 Be6 18.Kb1 Qc7 19.Nc1 Na4 20.Nb3 a5 21.g6 Rfc8 22.Ba6 
Rd8 23.gxh7+ Kh8 24.Qg2 Bf6 25.Bg5 Qe7 26.Bh4 Rd7 27.Qg3 Ra7 28.Rxd6 Nb6 
29.Be2 a4 30.Bxf6 Qxf6 31.Nc5 b3 32.cxb3 axb3 33.a3 Na4 34.Nxe6 fxe6 35.
Qg6 Qf4 36.Rgd1 Qh4 37.Rd7 Rxd7 38.Rxd7 Qf6 39.Qxf6 gxf6 40.Bc4 Nb6 41.Rc7
Nxc4 42.Rxc4 Rd8 43.Kc1 Kxh7 44.Rc3 Rb8 45.Kd2 Kh6 46.Rc6 Kxh5 47.Ke3 Kg5 
48.Rxe6 Rb5 49.Rc6 f5 50.exf5 Kxf5 51.Rc4 Ke6 52.Rb4 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.02"]
[Round "4"]
[White "Uhlmann, Wolfgang"]
[Black "Anand, Viswanathan"]
[Result "1-0"]
[WhiteElo "2505"]
[BlackElo "2610"]
[ECO "A50"]
[EventDate "1990.07.30"]
[PlyCount "61"]

1.c4 Nc6 2.d4 e5 3.d5 Nce7 4.Nc3 Ng6 5.e4 Nf6 6.Nf3 Bb4 7.Qc2 Bxc3+ 8.bxc3
d6 9.h4 h6 10.g3 O-O 11.h5 Ne7 12.Nh4 c6 13.Be2 b5 14.dxc6 bxc4 15.O-O Be6
16.Rd1 Qc7 17.Ba3 Rfd8 18.Rd2 Qxc6 19.Rad1 Nc8 20.Bf3 Rb8 21.Ng2 Bf5 22.
Rd5 Nxd5 23.exf5 Nce7 24.f6 gxf6 25.Rxd5 Nxd5 26.Qd2 Rb5 27.Qxh6 Ne3 28.
Qxe3 d5 29.Qh6 Rb1+ 30.Kh2 Rf1 31.Be7 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.02"]
[Round "4"]
[White "Piket, Jeroen"]
[Black "Tukmakov, Vladimir"]
[Result "0-1"]
[WhiteElo "2495"]
[BlackElo "2520"]
[ECO "D82"]
[EventDate "1990.07.30"]
[PlyCount "126"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bf4 Bg7 5.e3 c5 6.dxc5 Qa5 7.Qb3 dxc4 8.Bxc4 
O-O 9.Nf3 Ne4 10.O-O Nxc5 11.Qc2 Nc6 12.Rac1 Nb4 13.Qe2 Be6 14.a3 Bxc4 15.
Qxc4 Nbd3 16.b4 Qa6 17.Nb5 Nxc1 18.bxc5 Na2 19.Qb3 Rac8 20.Nc7 Rxc7 21.
Bxc7 Nc3 22.Re1 Qb5 23.Qxb5 Nxb5 24.Be5 Rc8 25.a4 Bxe5 26.Nxe5 Rxc5 27.Nd3
Rc3 28.axb5 Rxd3 29.Ra1 Rb3 30.h4 Rxb5 31.Rxa7 Kg7 32.g3 h5 33.Kg2 Rb2 34.
Ra8 Rd2 35.Rb8 Rd7 36.Kf3 Kf6 37.g4 hxg4+ 38.Kxg4 Ke5 39.Rf8 e6 40.f3 Kd5 
41.e4+ Kd4 42.Kg5 Rc7 43.Kf6 b5 44.Rd8+ Kc3 45.f4 b4 46.f5 exf5 47.exf5 
Rc6+ 48.Kg7 gxf5 49.h5 b3 50.h6 Rg6+ 51.Kh7 Rb6 52.Kg7 Rg6+ 53.Kh7 b2 54.
Rc8+ Kd3 55.Rb8 Kc2 56.Rc8+ Kb3 57.Rb8+ Ka2 58.Ra8+ Kb3 59.Rb8+ Ka2 60.
Ra8+ Kb1 61.Rc8 Rg3 62.Kh8 Ka2 63.h7 b1=Q 0-1

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.02"]
[Round "4"]
[White "Serper, Grigory"]
[Black "Bertholee, Rob"]
[Result "1-0"]
[WhiteElo "2485"]
[BlackElo "2360"]
[ECO "D94"]
[EventDate "1990.07.30"]
[PlyCount "103"]

1.c4 Nf6 2.Nc3 c6 3.d4 d5 4.e3 g6 5.Nf3 Bg7 6.Bd3 O-O 7.O-O Bg4 8.h3 Bxf3 
9.Qxf3 e6 10.Rd1 Nbd7 11.b3 Re8 12.Bb2 Qe7 13.Qe2 dxc4 14.Bxc4 Nd5 15.Rac1
Nxc3 16.Bxc3 Nb6 17.Bd3 Nd5 18.Be1 e5 19.dxe5 Qxe5 20.Qf3 Qf6 21.Be4 Nb6 
22.Qxf6 Bxf6 23.Bf3 Rad8 24.Kf1 Bb2 25.Rb1 Be5 26.a4 Nd5 27.Rd3 Rd6 28.b4 
Red8 29.b5 R8d7 30.a5 c5 31.Rbd1 Nb4 32.Rxd6 Bxd6 33.Bc3 Kf8 34.Bf6 Ke8 
35.Bg4 c4 36.Bxd7+ Kxd7 37.Rc1 Nd5 38.Bd4 Bb4 39.Rxc4 Bxa5 40.Bxa7 b6 41.
Bb8 Nc3 42.Rc7+ Ke6 43.Rb7 Nxb5 44.Bc7 Kd5 45.Bxb6 Kc6 46.Rxf7 Bxb6 47.
Rxh7 g5 48.Rh8 Nd6 49.Rg8 Ne4 50.Rg6+ Kc7 51.Re6 Nd2+ 52.Ke2 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.02"]
[Round "4"]
[White "Dorfman, Iosif"]
[Black "Hansen, Curt"]
[Result "1/2-1/2"]
[WhiteElo "2580"]
[BlackElo "2560"]
[ECO "A28"]
[EventDate "1990.07.30"]
[PlyCount "128"]

1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.e3 Bb4 5.Qc2 O-O 6.Nd5 a5 7.a3 Bc5 8.Be2 h6 
9.O-O d6 10.Nc3 Bg4 11.h3 Bh5 12.d3 Re8 13.b3 Qd7 14.Bb2 Ne7 15.Rad1 Bg6 
16.Qc1 c6 17.d4 exd4 18.Nxd4 Qc7 19.Bf3 Rad8 20.Nce2 Nd7 21.Ng3 Bb6 22.Be4
Bxe4 23.Nxe4 Bxd4 24.Bxd4 Nf5 25.Qc2 Nxd4 26.Rxd4 Nc5 27.Ng3 Ne6 28.Rd2 d5
29.cxd5 Rxd5 30.Rxd5 cxd5 31.Qxc7 Nxc7 32.Rd1 g6 33.Ne2 Kf8 34.Nc3 Rd8 35.
Rd4 Ke7 36.b4 b6 37.g4 Ke6 38.Kg2 axb4 39.Rxb4 Rd6 40.Ne2 Kd7 41.h4 Ne6 
42.h5 gxh5 43.gxh5 Ke7 44.Nc3 d4 45.exd4 Nxd4 46.Rxb6 Rxb6 47.Nd5+ Ke6 48.
Nxb6 Kf5 49.Nc4 Kg4 50.Ne5+ Kxh5 51.Nxf7 Kg6 52.Ne5+ Kf5 53.Nf3 Ne6 54.Kg3
Ke4 55.Ne1 Kd4 56.f4 Kc3 57.f5 Ng7 58.Kf4 Kb3 59.Nc2 Ne8 60.Ke5 h5 61.Kf4 
h4 62.Nd4+ Kxa3 63.Kg4 h3 64.Kxh3 Nd6 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.02"]
[Round "4"]
[White "Psakhis, Lev"]
[Black "Polgar, Zsofia"]
[Result "1-0"]
[WhiteElo "2575"]
[BlackElo "2425"]
[ECO "A13"]
[EventDate "1990.07.30"]
[PlyCount "69"]

1.c4 e6 2.Nf3 d5 3.b3 Nf6 4.Bb2 Bd6 5.g3 O-O 6.Bg2 Nbd7 7.Nc3 c6 8.Qc2 Qe7
9.O-O a6 10.d4 dxc4 11.bxc4 e5 12.c5 Bc7 13.e3 Rd8 14.Rad1 exd4 15.exd4 
Nf8 16.Rfe1 Ne6 17.Ne4 Nd5 18.Neg5 g6 19.h4 Qf6 20.Ne4 Qg7 21.Nc3 Bd7 22.
Nxd5 cxd5 23.Ne5 Bxe5 24.Rxe5 Bc6 25.Qb3 Nc7 26.Bc1 f6 27.Ree1 Qd7 28.Bf4 
Ne6 29.Bd6 Ba4 30.Qxd5 Bxd1 31.Rxe6 Kg7 32.Rxf6 Qe8 33.Rf4 Rd7 34.Be5+ Kh6
35.Qc4 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.02"]
[Round "4"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Nijboer, Friso"]
[Result "1/2-1/2"]
[WhiteElo "2440"]
[BlackElo "2485"]
[ECO "E94"]
[EventDate "1990.07.30"]
[PlyCount "121"]

1.c4 g6 2.Nc3 Bg7 3.d4 Nf6 4.e4 d6 5.Be2 O-O 6.Bg5 Na6 7.Qd2 e5 8.Nf3 Qe8 
9.d5 Nc5 10.Bxf6 Bxf6 11.b4 Nd7 12.O-O Be7 13.Rac1 Qd8 14.Rfd1 Nf6 15.c5 
Nh5 16.g3 f5 17.Nxe5 dxe5 18.Bxh5 gxh5 19.d6 cxd6 20.cxd6 Bg5 21.f4 Bh6 
22.Qd5+ Rf7 23.Nb5 Qb6+ 24.Rc5 Bd7 25.Nc7 Rf8 26.Qb3 fxe4 27.fxe5 Kh8 28.
e6 Rf3 29.Qb2+ Bg7 30.Qe2 Qxb4 31.Rc4 Qb6+ 32.Kh1 Rf2 33.Qxe4 Rf1+ 34.Rxf1
Rxf1+ 35.Kg2 Rf2+ 36.Kh3 Qb2 37.Qh1 Qf6 38.Qe4 Rd2 39.Rc1 Rd4 40.Qe2 Qf5+ 
41.Kg2 Rxd6 42.exd7 Qxd7 43.Qe8+ Qxe8 44.Nxe8 Rc6 45.Rb1 b6 46.Nxg7 Rc2+ 
47.Kh3 Kxg7 48.a4 Ra2 49.Rb4 Kf6 50.Rh4 Kg5 51.Rf4 a5 52.Rd4 Rb2 53.Rd5+ 
Kg6 54.Rd6+ Kg5 55.Rd5+ Kg6 56.Rd6+ Kg7 57.Rd7+ Kg8 58.Rd8+ Kf7 59.Rd7+ 
Kg8 60.Rd8+ Kg7 61.Rd7+ 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.02"]
[Round "4"]
[White "Dam, Ruurd"]
[Black "Van Wely, Loek"]
[Result "0-1"]
[WhiteElo "2270"]
[BlackElo "2400"]
[ECO "B96"]
[EventDate "1990.07.30"]
[PlyCount "102"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 b5 8.e5 dxe5 
9.fxe5 Qc7 10.exf6 Qe5+ 11.Be2 Qxg5 12.Qd3 Ra7 13.Ne4 Qe5 14.O-O-O Rd7 15.
Qc3 Qc7 16.Nxb5 axb5 17.fxg7 Qxc3 18.gxf8=Q+ Kxf8 19.Nxc3 b4 20.Ne4 Ke7 
21.Bf3 Ra7 22.Kb1 Bb7 23.Nc5 Bxf3 24.gxf3 Nc6 25.Nb3 Rha8 26.Nc1 Ra5 27.
Rhg1 Rh5 28.Rd2 Rd8 29.Nd3 Ne5 30.Rg3 Rf5 31.Rf2 Nxd3 32.cxd3 Rxd3 33.Kc2 
Rd4 34.Re2 Rdf4 35.Kb3 h5 36.Re4 h4 37.Rxf4 Rxf4 38.Rg4 Rxf3+ 39.Kxb4 Rf2 
40.Rxh4 Rxb2+ 41.Ka3 Rb8 42.Rb4 Rd8 43.h4 f5 44.Kb3 e5 45.Kc3 f4 46.Rb2 
Ke6 47.Rd2 Rh8 48.Rh2 Kf5 49.Kd3 e4+ 50.Ke2 Rb8 51.Kf1 e3 0-1

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.02"]
[Round "4"]
[White "Piket, Marcel"]
[Black "Kuijf, Marinus"]
[Result "0-1"]
[WhiteElo "2350"]
[BlackElo "2445"]
[ECO "D44"]
[EventDate "1990.07.30"]
[PlyCount "68"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.Bg5 dxc4 6.e4 b5 7.e5 h6 8.Bh4 g5 9.
exf6 gxh4 10.Ne5 Qxf6 11.Qe2 Bg7 12.g3 O-O 13.Bg2 h3 14.Bf3 Qe7 15.O-O Bb7
16.Rfe1 Nd7 17.Nxc6 Bxc6 18.Bxc6 Rab8 19.Bxb5 Nb6 20.Bc6 Qd6 21.Bh1 Qxd4 
22.Rad1 Qc5 23.Qg4 Rbd8 24.Ne4 Qe7 25.Qxh3 Qb4 26.Rb1 Qa5 27.a3 Rd4 28.Bg2
Na4 29.Bf1 Nxb2 30.Qg4 Kh8 31.Qf3 Nd3 32.Red1 f5 33.Nd2 Ne5 34.Qe3 Rxd2 
0-1

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.04"]
[Round "5"]
[White "Tukmakov, Vladimir"]
[Black "Hellers, Ferdinand"]
[Result "1/2-1/2"]
[WhiteElo "2520"]
[BlackElo "2520"]
[ECO "E15"]
[EventDate "1990.07.30"]
[PlyCount "67"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb4+ 5.Bd2 Bxd2+ 6.Qxd2 Ba6 7.b3 c6 8.Qb2 
d5 9.Nbd2 Qe7 10.Bg2 O-O 11.Ne5 Bb7 12.O-O Nbd7 13.Nxd7 Qxd7 14.b4 Rac8 
15.Rab1 Ba6 16.Rfc1 Ne8 17.a4 Bxc4 18.Nxc4 dxc4 19.Rxc4 Nd6 20.Rc2 Nf5 21.
e3 Rc7 22.Rbc1 Rfc8 23.Rc4 Ne7 24.Qc2 h6 25.Qe4 Qd6 26.Qc2 Nd5 27.Qb2 Kh8 
28.R1c2 Kg8 29.e4 Ne7 30.Qc1 a6 31.Qe3 Qd8 32.d5 b5 33.axb5 axb5 34.Rc5 
1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.04"]
[Round "5"]
[White "Anand, Viswanathan"]
[Black "Serper, Grigory"]
[Result "1-0"]
[WhiteElo "2610"]
[BlackElo "2485"]
[ECO "B66"]
[EventDate "1990.07.30"]
[PlyCount "107"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
h6 9.Bf4 Bd7 10.Nxc6 Bxc6 11.f3 d5 12.Qe1 Bb4 13.Bd2 d4 14.Ne2 Bxd2+ 15.
Rxd2 Qa5 16.a3 e5 17.Ng3 g6 18.Rd1 Qxe1 19.Rxe1 Rc8 20.Kb1 O-O 21.h4 h5 
22.Rh2 Rc7 23.Nh1 Rfc8 24.g3 Ba4 25.Bd3 Nd7 26.Rd2 Nc5 27.Bf1 Bc6 28.Nf2 
Re8 29.Nd3 Nxd3 30.Bxd3 Kg7 31.Rf2 Rce7 32.Kc1 f6 33.Kd2 Rf8 34.Rfe2 Bd7 
35.Rf2 f5 36.f4 exf4 37.Rxf4 Rfe8 38.Re2 Bb5 39.Bxb5 axb5 40.Kd3 Rc8 41.
Ref2 fxe4+ 42.Rxe4 Rxe4 43.Kxe4 g5 44.hxg5 Kg6 45.Kd3 Rc5 46.Kxd4 Rc4+ 47.
Ke3 Kxg5 48.c3 Kg4 49.Rf3 Rc5 50.Kf2 Rd5 51.Rf4+ Kg5 52.Rd4 Rf5+ 53.Kg2 
Re5 54.Kh3 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.04"]
[Round "5"]
[White "Hansen, Curt"]
[Black "Fedorowicz, John"]
[Result "1/2-1/2"]
[WhiteElo "2560"]
[BlackElo "2565"]
[ECO "A57"]
[EventDate "1990.07.30"]
[PlyCount "41"]

1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.Nc3 axb5 6.e4 b4 7.Nb5 d6 8.Bf4 g5 9.
Be3 Nxe4 10.Bd3 Qa5 11.Ne2 f5 12.O-O f4 13.Bc1 Nf6 14.Re1 Kf7 15.b3 Nbd7 
16.Bb2 Ne5 17.Bxe5 dxe5 18.Bc4 Kg7 19.a4 Bd7 20.Ra2 h5 21.Qa1 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.04"]
[Round "5"]
[White "Uhlmann, Wolfgang"]
[Black "Brenninkmeijer, Joris"]
[Result "1/2-1/2"]
[WhiteElo "2505"]
[BlackElo "2510"]
[ECO "D18"]
[EventDate "1990.07.30"]
[PlyCount "100"]

1.c4 c6 2.d4 d5 3.Nc3 Nf6 4.Nf3 dxc4 5.a4 Bf5 6.e3 e6 7.Bxc4 Bb4 8.O-O 
Nbd7 9.Qb3 a5 10.Bd2 Qb6 11.Ne2 Bd6 12.Ng3 Qxb3 13.Bxb3 Bg6 14.Bc3 O-O 15.
Ne5 Bxe5 16.dxe5 Nd5 17.Bxd5 cxd5 18.Bd4 Rfc8 19.Rfc1 f6 20.f4 Bd3 21.Kf2 
fxe5 22.Bxe5 Nxe5 23.fxe5 Kf7 24.e4 dxe4 25.Ke3 Rc6 26.Rxc6 bxc6 27.Rc1 
Rb8 28.Rxc6 Rxb2 29.Nh5 Re2+ 30.Kd4 Rc2 31.Rb6 g5 32.Rb7+ Kf8 33.Nf6 Rxg2 
34.Rxh7 Ra2 35.Ra7 Rxa4+ 36.Ke3 Bc4 37.Nxe4 Bd5 38.Nxg5 Ra2 39.Nh7+ Ke8 
40.Nf6+ Kd8 41.Nxd5 exd5 42.Kd4 Rxh2 43.Kc5 Rh6 44.Rxa5 Ke7 45.Ra7+ Ke8 
46.Kxd5 Rg6 47.Rc7 Ra6 48.Rc6 Rxc6 49.Kxc6 Ke7 50.e6 Kxe6 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.04"]
[Round "5"]
[White "Stohl, Igor"]
[Black "Polgar, Judit"]
[Result "1-0"]
[WhiteElo "2525"]
[BlackElo "2540"]
[ECO "A31"]
[EventDate "1990.07.30"]
[PlyCount "103"]

1.Nf3 c5 2.c4 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Qb6 6.Nb3 e6 7.a3 d5 8.Be3 
Qd8 9.cxd5 Nxd5 10.Nxd5 exd5 11.g3 a5 12.Bg2 a4 13.Nd4 Qa5+ 14.Qd2 Qxd2+ 
15.Kxd2 Na5 16.Bxd5 Bh3 17.Rhd1 Rd8 18.Ba2 Bc5 19.Ke1 O-O 20.Rac1 b6 21.
Nc2 Rb8 22.Bf4 Rb7 23.Ne3 Re8 24.Rc3 Be6 25.Bxe6 fxe6 26.Nc4 Nxc4 27.Rxc4 
Ra8 28.Bd6 Ra5 29.Re4 Rb5 30.Be5 Kf7 31.Rd8 Be7 32.Ra8 Bf6 33.Bxf6 Kxf6 
34.Rb4 Rxb4 35.axb4 b5 36.Rc8 Kf5 37.f3 g5 38.Rc5+ Kf6 39.Kf2 h6 40.Ke3 
Ke7 41.f4 gxf4+ 42.gxf4 Kf6 43.h4 Rb6 44.Kd2 Rd6+ 45.Kc3 Rb6 46.e4 Kf7 47.
Kd4 Kf6 48.Ke3 Kf7 49.h5 Kf6 50.Rc7 Rb8 51.e5+ Kf5 52.Kf3 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.04"]
[Round "5"]
[White "Polgar, Zsuzsa"]
[Black "Dorfman, Iosif"]
[Result "1/2-1/2"]
[WhiteElo "2510"]
[BlackElo "2580"]
[ECO "E14"]
[EventDate "1990.07.30"]
[PlyCount "90"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.e3 Bb7 5.Bd3 d5 6.O-O Nbd7 7.Nc3 Be7 8.Qe2 O-O
9.e4 dxe4 10.Nxe4 c5 11.dxc5 Nxe4 12.Bxe4 Bxe4 13.Qxe4 Nxc5 14.Qe2 Qd3 15.
Re1 Rfd8 16.Be3 Bf6 17.Bg5 Bxg5 18.Nxg5 Qg6 19.Nf3 Nd3 20.Ne5 Nxe5 21.Qxe5
Qc2 22.Rac1 Qa4 23.Qc3 Rac8 24.a3 Rc7 25.Qc2 Qxc2 26.Rxc2 Rd4 27.Rec1 b5 
28.c5 b4 29.Rc4 Rxc4 30.Rxc4 bxa3 31.bxa3 Kf8 32.Kf1 Ke7 33.Ra4 Kd7 34.Ra6
Kc8 35.c6 Kd8 36.Ke2 Ke7 37.Kd3 Kd6 38.Kd4 g5 39.g4 f6 40.a4 Rxc6 41.Rxa7 
Rc2 42.Ra6+ Kd7 43.Ra7+ Kd6 44.Ra6+ Kd7 45.Ra7+ Kd6 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.04"]
[Round "5"]
[White "Kuijf, Marinus"]
[Black "Psakhis, Lev"]
[Result "1-0"]
[WhiteElo "2445"]
[BlackElo "2575"]
[ECO "B82"]
[EventDate "1990.07.30"]
[PlyCount "103"]

1.e4 c5 2.Ne2 e6 3.Nbc3 d6 4.d4 cxd4 5.Nxd4 a6 6.f4 Nf6 7.Bd3 b5 8.e5 dxe5
9.fxe5 Nd5 10.Ne4 Nb4 11.c3 Nxd3+ 12.Qxd3 Qd5 13.O-O Nc6 14.Bf4 Nxe5 15.
Bxe5 Qxe5 16.Qf3 Qc7 17.Ng5 Ra7 18.Qh5 g6 19.Qe2 Qb8 20.Kh1 h6 21.Ne4 f5 
22.Nc6 Qc7 23.Nxa7 Qxa7 24.Nf6+ Ke7 25.Nd5+ Kf7 26.Nf4 Bd6 27.Rae1 Re8 28.
Rd1 Qc7 29.Qd2 Be5 30.Qe3 g5 31.Nd3 Bd6 32.Rfe1 e5 33.Nb4 e4 34.Nd5 Qc6 
35.Qa7+ Kg6 36.Nb4 Qc5 37.Qxc5 Bxc5 38.Rd5 Bf8 39.Red1 e3 40.Nc2 Be6 41.
Rd8 e2 42.R1d2 Rxd8 43.Rxd8 Bc5 44.Rd2 Bxa2 45.Rxe2 Bc4 46.Re5 Bd6 47.Re8 
a5 48.Ra8 b4 49.Rc8 bxc3 50.Rc6 cxb2 51.Rxd6+ Kf7 52.Rb6 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.04"]
[Round "5"]
[White "Visser, Yge"]
[Black "Piket, Jeroen"]
[Result "1/2-1/2"]
[WhiteElo "2340"]
[BlackElo "2495"]
[ECO "A21"]
[EventDate "1990.07.30"]
[PlyCount "170"]

1.Nf3 g6 2.g3 Bg7 3.Bg2 e5 4.d3 Ne7 5.c4 O-O 6.Nc3 Nbc6 7.Rb1 a5 8.Bd2 d6 
9.Qc1 Nf5 10.Nd5 Re8 11.Ng5 h6 12.Ne4 Ncd4 13.e3 Ne6 14.O-O c6 15.Ndc3 Kh8
16.Ne2 d5 17.cxd5 cxd5 18.Nc5 Qd6 19.Nxe6 Bxe6 20.d4 exd4 21.exd4 Bd7 22.
Nc3 Bc6 23.Bf4 Qd8 24.Qd2 b5 25.a4 bxa4 26.Rfe1 Rxe1+ 27.Rxe1 g5 28.Qd3 
gxf4 29.Qxf5 fxg3 30.hxg3 Qf6 31.Qxf6 Bxf6 32.Nxd5 Bxd4 33.Nc7 Rc8 34.Bxc6
Rxc7 35.Bxa4 Bxb2 36.Re2 Rb7 37.Re4 Bc3 38.Rc4 Bb4 39.Kg2 Kg7 40.Kf3 Re7 
41.Rg4+ Kf8 42.Re4 Rc7 43.Ke2 Rc1 44.g4 Ra1 45.Bb3 Rb1 46.Bc2 Rc1 47.Bb3 
Bd6 48.Re3 Kg7 49.Rd3 Rc6 50.Rd5 Rb6 51.Bc2 Bc7 52.f3 Re6+ 53.Kd2 Ra6 54.
Rd4 Be5 55.Rc4 Rd6+ 56.Ke3 Bb2 57.Bd3 Re6+ 58.Re4 Bc1+ 59.Ke2 Rb6 60.Rc4 
Bg5 61.Bc2 Re6+ 62.Re4 Rd6 63.Bd3 Bf6 64.Ra4 Bc3 65.Rc4 Bb4 66.Rf4 Re6+ 
67.Re4 Rb6 68.Bc2 Rc6 69.Bb3 Rc3 70.Re3 Rc1 71.Re4 Rb1 72.Bc2 Ra1 73.Bb3 
Rb1 74.Bc2 Rg1 75.Bb3 Rg2+ 76.Ke3 Rb2 77.Ba4 Ra2 78.Bc6 Rc2 79.Ba4 Rc3+ 
80.Ke2 Bc5 81.Bb5 Rc2+ 82.Kd3 Rf2 83.Rf4 Bd6 84.Rf5 f6 85.Ke3 Rc2 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.04"]
[Round "5"]
[White "Bertholee, Rob"]
[Black "Dam, Ruurd"]
[Result "1-0"]
[WhiteElo "2360"]
[BlackElo "2270"]
[ECO "E94"]
[EventDate "1990.07.30"]
[PlyCount "127"]

1.c4 Nf6 2.Nc3 g6 3.e4 d6 4.d4 Bg7 5.Nf3 O-O 6.Be2 e5 7.O-O Na6 8.Qc2 Nb4 
9.Qd1 Na6 10.Be3 Ng4 11.Bg5 Qe8 12.h3 h6 13.Bh4 Nf6 14.d5 Nh5 15.Rb1 Nf4 
16.b4 f5 17.Nd2 g5 18.Bg3 Qg6 19.f3 h5 20.exf5 Bxf5 21.Nce4 g4 22.hxg4 
hxg4 23.Rb3 Rf7 24.Qe1 Bf8 25.Bd1 Be7 26.b5 Nc5 27.Nxc5 dxc5 28.Bxf4 exf4 
29.fxg4 Bxg4 30.Bxg4 Qxg4 31.Qe6 Qxe6 32.dxe6 Rf5 33.Rbf3 Bd6 34.Ne4 Be5 
35.g3 Re8 36.gxf4 Bd4+ 37.Kg2 Rxe6 38.Ng3 Rf7 39.f5 Re3 40.Rxe3 Bxe3 41.
Re1 Bf4 42.Re8+ Kh7 43.Kf3 Bxg3 44.Kxg3 Rxf5 45.Re7+ Kg6 46.Rxc7 Rf7 47.
Rxc5 Kf6 48.Kf4 Ke6+ 49.Ke4 Kd6 50.Rd5+ Kc7 51.Rf5 Rh7 52.a4 b6 53.a5 Kb7 
54.a6+ Kc7 55.Kd5 Rd7+ 56.Ke6 Rd4 57.Rf7+ Kb8 58.Rf8+ Kc7 59.Ra8 Rxc4 60.
Rxa7+ Kc8 61.Kd6 Kb8 62.Rb7+ Ka8 63.Rxb6 Rh4 64.Rc6 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.04"]
[Round "5"]
[White "Nijboer, Friso"]
[Black "Van Wely, Loek"]
[Result "1-0"]
[WhiteElo "2485"]
[BlackElo "2400"]
[ECO "B80"]
[EventDate "1990.07.30"]
[PlyCount "79"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be3 a6 7.f3 b5 8.g4 h6 9.
Qd2 Bb7 10.h4 Nbd7 11.Rg1 g6 12.O-O-O Rc8 13.g5 hxg5 14.hxg5 Nh5 15.Bd3 
Nb6 16.Ndxb5 axb5 17.Bxb5+ Bc6 18.Bd4 Rg8 19.f4 Be7 20.Qf2 Bxb5 21.Bxb6 
Qd7 22.f5 Bc6 23.f6 Bf8 24.Rge1 Qb7 25.a4 Rh8 26.a5 e5 27.Nd5 Bxd5 28.exd5
Rc4 29.Qe2 Rb4 30.c3 Nf4 31.Qf1 Qc8 32.Rd4 Rxd4 33.Bxd4 Be7 34.a6 Qf5 35.
a7 Nd3+ 36.Qxd3 Qxd3 37.a8=Q+ Bd8 38.Qc6+ Kf8 39.Qc8 Ke8 40.Bb6 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.04"]
[Round "5"]
[White "Martens, Martin"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "0-1"]
[WhiteElo "2325"]
[BlackElo "2440"]
[ECO "C99"]
[EventDate "1990.07.30"]
[PlyCount "152"]

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 Bd7 14.Nf1 Rac8 15.Ne3 
Nc6 16.d5 Nb4 17.Bb1 a5 18.a3 Na6 19.b4 g6 20.Bd2 Nh5 21.Kh2 Nf4 22.Ng1 
Qa7 23.Ra2 f5 24.Nf3 fxe4 25.Bxe4 Nc7 26.bxa5 Na6 27.Bb4 Nc5 28.Bb1 Bd8 
29.Rf1 Bxa5 30.Ng5 Bxb4 31.axb4 Na4 32.Ne4 Qb6 33.Rc2 Kg7 34.Qd2 Rxc2 35.
Bxc2 Rc8 36.g3 Nxh3 37.Kg2 Qd4 38.Rd1 Qxd2 39.Rxd2 Nc3 40.Nxd6 Rf8 41.Ne4 
Nxe4 42.Bxe4 Ng5 43.Bd3 Kf6 44.Ra2 e4 45.Be2 Ke5 46.g4 h5 47.gxh5 Nh3 48.
Bg4 Nf4+ 49.Kg3 Nxh5+ 50.Bxh5 gxh5 51.Ra7 Rf3+ 52.Kg2 Rf7 53.Kg3 h4+ 54.
Kxh4 Kf4 55.Ng2+ Kf3 56.Ne3 Rg7 57.Ra2 Kf4 58.Kh5 Bf5 59.Nxf5 Kxf5 60.Kh4 
Kf4 61.Kh3 Kf3 62.Kh4 Rd7 63.Rd2 Rd6 64.Kg5 e3 65.fxe3 Kxe3 66.Rd1 Ke4 67.
Rb1 Rxd5+ 68.Kf6 Rd2 69.Ke6 Kd3 70.Rc1 Rc2 71.Rb1 Rd2 72.Rc1 Rb2 73.Kd5 
Rxb4 74.Rh1 Rg4 75.Kc5 b4 76.Kb5 b3 0-1

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.04"]
[Round "5"]
[White "Polgar, Zsofia"]
[Black "Piket, Marcel"]
[Result "1-0"]
[WhiteElo "2425"]
[BlackElo "2350"]
[ECO "B09"]
[EventDate "1990.07.30"]
[PlyCount "95"]

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.Qe1 Nb4 10.a3 Nxd3 11.cxd3 Bg4 12.Nd2 Bd7 13.a4 e6 14.dxe6 fxe6 15.Nc4 
d5 16.Ne5 Bc8 17.Bd2 Nd7 18.Qg3 Nf6 19.Rad1 Ra8 20.Kh1 b6 21.Bc1 Bb7 22.
Rde1 a6 23.f5 Nh5 24.Qh3 exf5 25.exf5 Qd6 26.Ng4 Rae8 27.Rxe8 Rxe8 28.Nh6+
Bxh6 29.Bxh6 Qf6 30.Qf3 Qxf5 31.Qd1 Qe6 32.Qf3 Qf5 33.Qd1 Qe6 34.Qf3 Ng7 
35.g4 Bc6 36.Kg1 b5 37.d4 cxd4 38.Ne2 Bb7 39.Nxd4 Qd7 40.axb5 axb5 41.b4 
Qe7 42.h3 Qd7 43.Qf6 Qe7 44.Nxb5 Ba6 45.Nd6 Qxf6 46.Rxf6 Rb8 47.Rf7 Ne6 
48.Re7 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.05"]
[Round "6"]
[White "Tukmakov, Vladimir"]
[Black "Stohl, Igor"]
[Result "1-0"]
[WhiteElo "2520"]
[BlackElo "2525"]
[ECO "D97"]
[EventDate "1990.07.30"]
[PlyCount "123"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Na6 8.e5 
Nd7 9.e6 fxe6 10.Be3 Nb6 11.Qb3 Nd5 12.Bxa6 Nxc3 13.bxc3 bxa6 14.O-O Bd7 
15.Ne5 Bxe5 16.dxe5 Qc8 17.Bc5 Rf7 18.Rab1 Bc6 19.Rfd1 Bd5 20.c4 Bc6 21.
Qa3 Qe8 22.f3 Rf5 23.Re1 g5 24.Bxe7 g4 25.fxg4 Rf4 26.h3 Rxc4 27.Rbc1 Ra4 
28.Qe3 Bd5 29.Rxc7 Rxa2 30.Re2 Rxe2 31.Qxe2 Rc8 32.Rxa7 Ra8 33.Qxa6 Rxa7 
34.Qxa7 Qa8 35.Qc7 Bxg2 36.Bf6 Qb7 37.Qd8+ Kf7 38.Qh8 Be4 39.Qg7+ Ke8 40.
Qg8+ Kd7 41.Qf7+ Kc6 42.Qxe6+ Kb5 43.Qb3+ Kc5 44.Qa3+ Kc4 45.Kh2 Qb1 46.
Qa6+ Qb5 47.Qa7 Qb7 48.Qe3 Qb2+ 49.Kg3 Qc3 50.Qxc3+ Kxc3 51.Kf4 Kd4 52.e6+
Kd5 53.e7 Bg6 54.Bc3 Ke6 55.Bb4 Kf7 56.h4 Bc2 57.Kg5 Bd3 58.h5 Be2 59.Kh4 
Bd1 60.g5 Be2 61.g6+ hxg6 62.h6 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.05"]
[Round "6"]
[White "Polgar, Judit"]
[Black "Uhlmann, Wolfgang"]
[Result "1-0"]
[WhiteElo "2540"]
[BlackElo "2505"]
[ECO "C18"]
[EventDate "1990.07.30"]
[PlyCount "105"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Ne7 5.a3 Bxc3+ 6.bxc3 c5 7.Qg4 O-O 8.Bd3 f5
9.exf6 Rxf6 10.Bg5 Rf7 11.Qh5 h6 12.Bg6 Rf8 13.Nf3 Nbc6 14.O-O Qc7 15.Bxe7
Qxe7 16.Rae1 Qf6 17.Ne5 cxd4 18.f4 dxc3 19.g4 Qe7 20.Bd3 Qe8 21.Ng6 Bd7 
22.g5 Rf7 23.gxh6 gxh6 24.Kh1 Ne7 25.Rg1 Nf5 26.Ne7+ Kf8 27.Nxf5 Rf6 28.
Qg4 Qf7 29.Nd6 Rxf4 30.Nxf7 Rxg4 31.Rxg4 Kxf7 32.Rh4 Rh8 33.Kg2 Kf6 34.Rh5
Ke7 35.Kf2 Kd6 36.Re3 Be8 37.Rhe5 Rf8+ 38.Ke1 Rf6 39.Re2 Bc6 40.R5e3 d4 
41.Rg3 e5 42.Rg6 Rxg6 43.Bxg6 b5 44.Be4 Bd5 45.Bxd5 Kxd5 46.Rf2 a5 47.Rf8 
b4 48.axb4 axb4 49.Rc8 h5 50.Ke2 h4 51.Rc7 h3 52.Rc8 e4 53.Rc7 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.05"]
[Round "6"]
[White "Brenninkmeijer, Joris"]
[Black "Hansen, Curt"]
[Result "1-0"]
[WhiteElo "2510"]
[BlackElo "2560"]
[ECO "A92"]
[EventDate "1990.07.30"]
[PlyCount "85"]

1.d4 f5 2.g3 Nf6 3.Bg2 e6 4.c4 Be7 5.Nf3 O-O 6.O-O Ne4 7.d5 Na6 8.Nd4 Bf6 
9.Nc3 Nxc3 10.bxc3 Qe7 11.Rb1 c6 12.Qa4 Nc5 13.Qc2 g6 14.Ba3 exd5 15.cxd5 
Be5 16.Nb3 Bd6 17.Nxc5 Bxc5 18.Bb2 b6 19.c4 h5 20.e4 f4 21.e5 Kh7 22.Be4 
Qg5 23.Kh1 fxg3 24.hxg3 Bb7 25.Kg2 cxd5 26.cxd5 h4 27.Qd3 Qg4 28.f4 Ba6 
29.Qf3 Bxf1+ 30.Rxf1 Qxf3+ 31.Kxf3 Rac8 32.Rh1 Be7 33.gxh4 Kh6 34.d6 Bd8 
35.Rg1 Rg8 36.h5 g5 37.f5 Rc4 38.f6 g4+ 39.Ke3 b5 40.Kd3 g3 41.Bd5 Rgg4 
42.f7 Rcf4 43.Bc1 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.05"]
[Round "6"]
[White "Fedorowicz, John"]
[Black "Polgar, Zsuzsa"]
[Result "1-0"]
[WhiteElo "2565"]
[BlackElo "2510"]
[ECO "B36"]
[EventDate "1990.07.30"]
[PlyCount "65"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Nf6 6.Nc3 d6 7.Be2 Nxd4 8.Qxd4 
Bg7 9.O-O O-O 10.Qd3 Be6 11.Bd2 a6 12.b3 Nd7 13.Rac1 Qb6 14.Kh1 Qd4 15.Qc2
Rfc8 16.f4 f5 17.exf5 Bxf5 18.Qd1 Nf6 19.Bf3 Rab8 20.Qe1 Bg4 21.Bxg4 Nxg4 
22.Nd5 Kh8 23.Bc3 Qd3 24.Bxg7+ Kxg7 25.h3 Nh6 26.Qxe7+ Nf7 27.Qf6+ Kf8 28.
f5 g5 29.Rfe1 Re8 30.Nc7 Re5 31.Rxe5 dxe5 32.Ne6+ Ke8 33.Nxg5 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.05"]
[Round "6"]
[White "Hellers, Ferdinand"]
[Black "Visser, Yge"]
[Result "1/2-1/2"]
[WhiteElo "2520"]
[BlackElo "2340"]
[ECO "C14"]
[EventDate "1990.07.30"]
[PlyCount "53"]

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.Bxe7 Qxe7 7.f4 a6 8.Nf3 c5
9.dxc5 Nc6 10.Qd2 Qxc5 11.O-O-O Nb6 12.Nd4 Nxd4 13.Qxd4 Qxd4 14.Rxd4 h5 
15.h4 Nd7 16.Rh3 g6 17.a4 Nb8 18.Rb4 Nc6 19.Rb3 Kd8 20.Nd1 Kc7 21.Nf2 Bd7 
22.Rhc3 Rhb8 23.a5 Kd8 24.Rc5 Nd4 25.Rbc3 Rc8 26.Bd3 Bb5 27.Kd2 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.05"]
[Round "6"]
[White "Piket, Jeroen"]
[Black "Nijboer, Friso"]
[Result "1-0"]
[WhiteElo "2495"]
[BlackElo "2485"]
[ECO "E60"]
[EventDate "1990.07.30"]
[PlyCount "121"]

1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.g3 O-O 5.Bg2 d6 6.O-O Nc6 7.d5 Na5 8.Nbd2 c5 
9.Ne1 a6 10.Rb1 Bf5 11.e4 Bg4 12.f3 Bd7 13.Nd3 b5 14.b3 Rb8 15.Bb2 e5 16.
Bc3 Nh5 17.f4 exf4 18.Bxg7 Kxg7 19.gxf4 bxc4 20.bxc4 Rxb1 21.Qxb1 Qf6 22.
Qa1 Qxa1 23.Rxa1 Rb8 24.Rc1 f6 25.Rc3 Rb6 26.Bf3 Nb7 27.Bxh5 gxh5 28.Kf2 
a5 29.Ke3 a4 30.h4 Bg4 31.Ra3 Bd1 32.e5 fxe5 33.fxe5 dxe5 34.Ne4 Bc2 35.
Ndxc5 Nxc5 36.Nxc5 Rg6 37.Rc3 Bf5 38.Ne4 Rg4 39.Nd6 Rg3+ 40.Kd2 Rg2+ 41.
Kc1 Bg4 42.c5 Rg1+ 43.Kb2 Rd1 44.Ka3 Rxd5 45.Kxa4 Rd2 46.a3 Rh2 47.c6 Rxh4
48.Kb5 Rh1 49.Rg3 Rc1 50.c7 Rxc7 51.Ne8+ Kg6 52.Nxc7 Kf5 53.Nd5 Be2+ 54.
Kc5 h4 55.Ne3+ Ke4 56.Rh3 h5 57.a4 Bf3 58.Nf1 Kf4 59.Rxh4+ Kg5 60.Rh2 h4 
61.Kd6 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.05"]
[Round "6"]
[White "Serper, Grigory"]
[Black "Polgar, Zsofia"]
[Result "1-0"]
[WhiteElo "2485"]
[BlackElo "2425"]
[ECO "D31"]
[EventDate "1990.07.30"]
[PlyCount "75"]

1.c4 e6 2.Nc3 d5 3.d4 c6 4.e3 Nf6 5.Bd3 dxc4 6.Bxc4 b5 7.Be2 Nbd7 8.Bf3 
Qb6 9.Nge2 Bb7 10.O-O c5 11.Nf4 Rd8 12.a4 Bxf3 13.Qxf3 b4 14.a5 Qb8 15.
Nce2 Bd6 16.b3 O-O 17.Bb2 cxd4 18.Nxd4 Rc8 19.Nc6 Qa8 20.Rac1 Rfe8 21.Rfd1
Bf8 22.Nh5 e5 23.Nxf6+ Nxf6 24.Nxe5 Qxf3 25.gxf3 h6 26.Nc6 Rc7 27.Bxf6 
gxf6 28.Rc4 Kh7 29.Rdc1 Rb7 30.Nd4 Re5 31.a6 Rb6 32.f4 Ra5 33.Rc7 Raxa6 
34.Rxf7+ Kg8 35.Rcc7 Ra1+ 36.Kg2 a5 37.f5 Rc1 38.Rxf8+ 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.05"]
[Round "6"]
[White "Dorfman, Iosif"]
[Black "Kuijf, Marinus"]
[Result "1/2-1/2"]
[WhiteElo "2580"]
[BlackElo "2445"]
[ECO "A07"]
[EventDate "1990.07.30"]
[PlyCount "98"]

1.g3 d5 2.Bg2 c6 3.d3 Bg4 4.Nd2 Nd7 5.h3 Bh5 6.Ngf3 e6 7.e4 Bd6 8.Qe2 Ne7 
9.b3 Be5 10.Rb1 Bc3 11.O-O O-O 12.Qe3 b5 13.a3 a5 14.Nd4 e5 15.Qg5 Bg6 16.
Ne2 f6 17.Qh4 Bxd2 18.Bxd2 d4 19.f4 c5 20.g4 c4 21.f5 Bf7 22.g5 cxd3 23.
cxd3 Rc8 24.Rb2 Qb6 25.Kh1 Rc7 26.gxf6 Nxf6 27.Qg3 Nc6 28.Bf3 Kh8 29.Rg1 
Bg8 30.b4 a4 31.Rc2 Bb3 32.Rxc6 Qxc6 33.Qxe5 Re8 34.Qg3 Rd7 35.Rc1 Qb7 36.
Rc5 Rc8 37.Kh2 Rxc5 38.bxc5 Qc7 39.Bb4 Qc8 40.Qe5 Bd1 41.Ng1 Bb3 42.Ne2 
Bd1 43.Kg2 Bxe2 44.Bxe2 Qc7 45.Qe6 Rd8 46.c6 Qf4 47.Bf3 Qg5+ 48.Kh2 Qf4+ 
49.Kg2 Qg5+ 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.05"]
[Round "6"]
[White "Psakhis, Lev"]
[Black "Bertholee, Rob"]
[Result "1/2-1/2"]
[WhiteElo "2575"]
[BlackElo "2360"]
[ECO "C10"]
[EventDate "1990.07.30"]
[PlyCount "69"]

1.e4 e6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Be7 5.Nf3 Nf6 6.Bd3 Nxe4 7.Bxe4 Nd7 8.c3
c5 9.O-O O-O 10.Bc2 Qc7 11.Re1 Rd8 12.Qd3 Nf8 13.Qe4 Bd7 14.Ne5 cxd4 15.
Qxd4 Be8 16.Qc4 Qxc4 17.Nxc4 Rac8 18.Na5 b6 19.Nb3 Ba4 20.Be3 f6 21.Rad1 
Kf7 22.f4 Rxd1 23.Rxd1 Rd8 24.Rxd8 Bxd8 25.Kf2 Bc7 26.g3 Nd7 27.Be4 e5 28.
Bd5+ Ke7 29.f5 Bd6 30.Nd2 Bc2 31.Be4 Bxe4 32.Nxe4 Bc5 33.b4 Bxe3+ 34.Kxe3 
b5 35.Kd3 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.05"]
[Round "6"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Anand, Viswanathan"]
[Result "0-1"]
[WhiteElo "2440"]
[BlackElo "2610"]
[ECO "B09"]
[EventDate "1990.07.30"]
[PlyCount "116"]

1.e4 d6 2.d4 g6 3.Nc3 Bg7 4.f4 Nf6 5.Nf3 O-O 6.Bd3 Na6 7.O-O c5 8.d5 Bg4 
9.h3 Bxf3 10.Qxf3 Nb4 11.a3 Nxd3 12.Qxd3 Qb6 13.Qc4 Qa5 14.Bd2 b5 15.Qe2 
Qb6 16.e5 Nd7 17.Qxb5 Qxb5 18.Nxb5 dxe5 19.Rae1 Nb6 20.fxe5 Nxd5 21.c4 Nb6
22.b3 a6 23.Nc3 Rfd8 24.Bf4 Nd7 25.Rf3 Nf8 26.Nd5 Ra7 27.Bg5 Re8 28.Be3 
Ne6 29.b4 Rc8 30.Bf2 Rb7 31.b5 axb5 32.cxb5 Rd8 33.Nc3 Nd4 34.Bxd4 cxd4 
35.Rd3 Rbb8 36.Red1 Bxe5 37.a4 Ra8 38.b6 Rd6 39.b7 Rb8 40.Ne4 Rd7 41.Nc5 
Rd5 42.Rc1 Bd6 43.Rb3 Rxc5 44.Rxc5 Bxc5 45.a5 e5 46.a6 e4 47.Kf1 Ba7 48.
Rb4 e3 49.Ke2 Rd8 50.Kd3 Re8 51.Rb2 f5 52.Rc2 e2 53.Rxe2 Re3+ 54.Rxe3 dxe3
55.b8=Q+ Bxb8 56.Kxe3 Kf7 57.g4 fxg4 58.hxg4 Kf6 0-1

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.05"]
[Round "6"]
[White "Van Wely, Loek"]
[Black "Piket, Marcel"]
[Result "1-0"]
[WhiteElo "2400"]
[BlackElo "2350"]
[ECO "E94"]
[EventDate "1990.07.30"]
[PlyCount "83"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Na6 8.Be3 Ng4 
9.Bg5 Qe8 10.h3 h6 11.Bc1 Nf6 12.dxe5 dxe5 13.Be3 Nd7 14.a3 c6 15.b4 f5 
16.c5 f4 17.Bc1 g5 18.Nd2 Nc7 19.Nc4 Nf6 20.Bb2 Be6 21.Nxe5 Bxh3 22.Nc4 
Be6 23.e5 Nfd5 24.Ne4 Qd7 25.Ned6 g4 26.Bd3 Ne7 27.Re1 Ncd5 28.Bc2 Qd8 29.
Na5 Nf5 30.Nxf5 Bxf5 31.Bxf5 Rxf5 32.Qxg4 Qf8 33.Nxb7 Re8 34.Nd6 Rg5 35.
Qd7 Rd8 36.Qe6+ Kh8 37.Nf7+ Kh7 38.Nxg5+ hxg5 39.Rad1 Qe8 40.Qxe8 Rxe8 41.
b5 Ne7 42.b6 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.05"]
[Round "6"]
[White "Martens, Martin"]
[Black "Dam, Ruurd"]
[Result "1/2-1/2"]
[WhiteElo "2325"]
[BlackElo "2270"]
[ECO "B86"]
[EventDate "1990.07.30"]
[PlyCount "45"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bc4 e6 7.Bb3 Nbd7 8.f4 
Nc5 9.Qf3 Be7 10.f5 O-O 11.O-O e5 12.Nde2 Nxb3 13.axb3 b5 14.Bg5 Bb7 15.
Bxf6 Bxf6 16.b4 Rc8 17.Rfd1 Qc7 18.Qg4 Qb6+ 19.Kh1 Rc4 20.b3 Rc7 21.Rd3 
Rfc8 22.Rad1 Qf2 23.Rf3 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.06"]
[Round "7"]
[White "Polgar, Judit"]
[Black "Fedorowicz, John"]
[Result "1-0"]
[WhiteElo "2540"]
[BlackElo "2565"]
[ECO "B82"]
[EventDate "1990.07.30"]
[PlyCount "55"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 Qb6 7.Nb3 e6 8.Be3 
Qc7 9.Qe2 a6 10.Bd3 b5 11.f4 Be7 12.a4 b4 13.Nb1 e5 14.f5 Bb7 15.N1d2 Nb8 
16.g4 d5 17.g5 dxe4 18.Bc4 Nd5 19.f6 gxf6 20.gxf6 Bf8 21.O-O-O Nd7 22.Nxe4
N7b6 23.Bxb6 Nxb6 24.Na5 Nxc4 25.Nxc4 Bh6+ 26.Kb1 Kf8 27.Rhg1 b3 28.cxb3 
1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.06"]
[Round "7"]
[White "Anand, Viswanathan"]
[Black "Dorfman, Iosif"]
[Result "1/2-1/2"]
[WhiteElo "2610"]
[BlackElo "2580"]
[ECO "C29"]
[EventDate "1990.07.30"]
[PlyCount "19"]

1.e4 e5 2.Nc3 Nf6 3.f4 d5 4.fxe5 Nxe4 5.Nf3 Bg4 6.Qe2 Nxc3 7.dxc3 Qd7 8.
Bf4 Na6 9.h3 Be6 10.Nd4 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.06"]
[Round "7"]
[White "Brenninkmeijer, Joris"]
[Black "Tukmakov, Vladimir"]
[Result "1-0"]
[WhiteElo "2510"]
[BlackElo "2520"]
[ECO "D94"]
[EventDate "1990.07.30"]
[PlyCount "78"]

1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 g6 5.Nf3 Bg7 6.Bd3 O-O 7.O-O e6 8.b3 Nbd7 
9.Bb2 b6 10.Qe2 Bb7 11.Rfd1 Qb8 12.Rac1 Re8 13.Ne5 Nxe5 14.dxe5 Nd7 15.f4 
Nc5 16.cxd5 exd5 17.Bb1 a5 18.Qf2 Qc7 19.h4 Rad8 20.h5 Bc8 21.Qg3 Qd7 22.
hxg6 hxg6 23.Ne2 Qg4 24.Qf3 Qh4 25.Qf2 Qxf2+ 26.Kxf2 Bb7 27.Ng3 Rd7 28.Bd4
a4 29.Bxc5 bxc5 30.Ne4 axb3 31.axb3 Ba6 32.Nxc5 Ra7 33.Bd3 Bxd3 34.Nxd3 
Ra3 35.b4 Ra6 36.Rc2 Bf8 37.Rdc1 Rb8 38.Rxc6 Rxc6 39.Rxc6 Bxb4 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.06"]
[Round "7"]
[White "Hansen, Curt"]
[Black "Piket, Jeroen"]
[Result "1/2-1/2"]
[WhiteElo "2560"]
[BlackElo "2495"]
[ECO "A28"]
[EventDate "1990.07.30"]
[PlyCount "42"]

1.c4 e5 2.Nc3 Nc6 3.e3 Nf6 4.Nf3 Be7 5.a3 O-O 6.b4 d6 7.Qc2 Re8 8.Bb2 Bg4 
9.Be2 Qd7 10.O-O a6 11.Rac1 Bd8 12.Rfd1 e4 13.Ne1 Ne5 14.Bxg4 Qxg4 15.h3 
Qh4 16.Nd5 Nh5 17.d3 c6 18.Nf4 Nxf4 19.exf4 Nxd3 20.Nxd3 exd3 21.Qxd3 Qxf4
1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.06"]
[Round "7"]
[White "Stohl, Igor"]
[Black "Hellers, Ferdinand"]
[Result "1/2-1/2"]
[WhiteElo "2525"]
[BlackElo "2520"]
[ECO "E62"]
[EventDate "1990.07.30"]
[PlyCount "66"]

1.c4 Nf6 2.Nc3 g6 3.g3 Bg7 4.Bg2 O-O 5.d4 d6 6.Nf3 Nc6 7.O-O Bf5 8.d5 Na5 
9.Nd2 Ne8 10.e4 Bd7 11.Rb1 c6 12.dxc6 Nxc6 13.Nd5 e6 14.Ne3 Nb4 15.Qb3 a5 
16.Rd1 Bc6 17.a3 Na6 18.Qc2 a4 19.Ndf1 Nc5 20.Bd2 Bd4 21.Bb4 e5 22.Nd5 Nc7
23.Nd2 Nxd5 24.cxd5 Bb5 25.Nf3 Nb3 26.Nxd4 Nxd4 27.Qd2 f5 28.f4 Ne2+ 29.
Kh1 exf4 30.gxf4 Qh4 31.Bxd6 Ng3+ 32.Kg1 Ne2+ 33.Kh1 Ng3+ 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.06"]
[Round "7"]
[White "Polgar, Zsuzsa"]
[Black "Psakhis, Lev"]
[Result "1/2-1/2"]
[WhiteElo "2510"]
[BlackElo "2575"]
[ECO "D05"]
[EventDate "1990.07.30"]
[PlyCount "84"]

1.d4 Nf6 2.Nf3 e6 3.e3 c5 4.Bd3 Nc6 5.O-O d5 6.b3 Bd6 7.Bb2 O-O 8.a3 b6 9.
Ne5 Bb7 10.Nd2 Ne7 11.Qe2 Qc7 12.c4 cxd4 13.exd4 Ng6 14.f4 Rad8 15.Qe3 Ba8
16.Rac1 dxc4 17.bxc4 Qe7 18.Bb1 Qb7 19.Qh3 Rfe8 20.Rce1 b5 21.Be4 Nxe4 22.
Nxe4 Bxe5 23.fxe5 bxc4 24.Bc3 Qxe4 25.Rxe4 Bxe4 26.Qg4 Bd3 27.Rc1 Ne7 28.
h4 Nd5 29.Bd2 Kf8 30.h5 Rd7 31.h6 g6 32.Bb4+ Kg8 33.Qf3 Rb8 34.Kh2 Rdb7 
35.Bd6 Rd8 36.Bb4 Rb5 37.Qd1 a6 38.Qa4 Ra8 39.Qd1 Rab8 40.Bd6 Ra8 41.Bb4 
Rd8 42.Qa4 Ra8 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.06"]
[Round "7"]
[White "Kuijf, Marinus"]
[Black "Uhlmann, Wolfgang"]
[Result "0-1"]
[WhiteElo "2445"]
[BlackElo "2505"]
[ECO "C07"]
[EventDate "1990.07.30"]
[PlyCount "60"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.Ngf3 Nc6 5.Bb5 dxe4 6.Nxe4 Bd7 7.Be3 Qa5+ 8.Nc3
cxd4 9.Nxd4 Bb4 10.O-O Bxc3 11.bxc3 Nge7 12.Nxc6 Bxc6 13.Bxc6+ Nxc6 14.c4 
O-O 15.Qb1 Qc7 16.c5 Rfd8 17.Qb5 Rd7 18.Rad1 Rad8 19.Rd6 a6 20.Qb2 Ne7 21.
Bg5 Rxd6 22.cxd6 Rxd6 23.Bf4 Qb6 24.Qe5 Rd7 25.Be3 Qc7 26.Qb2 Nf5 27.Bb6 
Qc6 28.g3 h5 29.h4 Rd2 30.Qb4 Nxg3 0-1

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.06"]
[Round "7"]
[White "Visser, Yge"]
[Black "Serper, Grigory"]
[Result "1/2-1/2"]
[WhiteElo "2340"]
[BlackElo "2485"]
[ECO "B50"]
[EventDate "1990.07.30"]
[PlyCount "29"]

1.e4 c5 2.Nf3 d6 3.Be2 Nf6 4.c3 g6 5.O-O Bg7 6.Re1 O-O 7.Bf1 Bg4 8.h3 Bxf3
9.Qxf3 Nc6 10.Qd1 Nd7 11.Na3 Rb8 12.Nc2 Qb6 13.d3 Rfc8 14.g3 Qd8 15.Be3 
1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.06"]
[Round "7"]
[White "Bertholee, Rob"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "0-1"]
[WhiteElo "2360"]
[BlackElo "2440"]
[ECO "A13"]
[EventDate "1990.07.30"]
[PlyCount "104"]

1.Nf3 d5 2.c4 e6 3.g3 Nf6 4.Bg2 dxc4 5.O-O c6 6.a4 Qd5 7.a5 Na6 8.Nc3 Qh5 
9.Qa4 Bb4 10.Na2 Bxa5 11.Qxc4 O-O 12.d4 Nc7 13.Nc3 Bb6 14.e4 Rd8 15.h3 h6 
16.Be3 Nd7 17.Nh4 f6 18.f4 Qf7 19.Rae1 Nf8 20.Kh2 Bd7 21.g4 Be8 22.Nf3 Nb5
23.Ne2 e5 24.Qxf7+ Bxf7 25.fxe5 fxe5 26.Nxe5 Be6 27.Rd1 Bc7 28.Bf4 Bb3 29.
Rd2 Ne6 30.Bg3 Nbxd4 31.Nc1 Ba4 32.Rdf2 Bb5 33.Rd1 c5 34.Rdd2 Re8 35.Ng6 
Bxg3+ 36.Kxg3 Kh7 37.Nh4 Ng5 38.Nf5 Bc6 39.Nxd4 cxd4 40.Rxd4 Nxe4+ 41.
Bxe4+ Rxe4 42.Rdd2 Re3+ 43.Kh2 Re1 44.Ne2 Rh1+ 45.Kg3 Re8 46.Nd4 Re3+ 47.
Kf4 Rhxh3 48.Nxc6 bxc6 49.Rd7 Re6 50.g5 hxg5+ 51.Kg4 Rh4+ 52.Kxg5 Reh6 0-1

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.06"]
[Round "7"]
[White "Dam, Ruurd"]
[Black "Nijboer, Friso"]
[Result "1/2-1/2"]
[WhiteElo "2270"]
[BlackElo "2485"]
[ECO "B09"]
[EventDate "1990.07.30"]
[PlyCount "125"]

1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.f4 Nc6 5.Be3 Nf6 6.Nf3 O-O 7.Be2 e6 8.O-O Ne7 
9.Nd2 b6 10.Bf3 c5 11.Nb3 cxd4 12.Nxd4 Bb7 13.Qd2 a6 14.a4 Qc7 15.Rfd1 
Rfd8 16.Qf2 Nd7 17.f5 exf5 18.exf5 Bxf3 19.fxg6 hxg6 20.Nxf3 Bxc3 21.bxc3 
Nf5 22.Bd4 Nc5 23.Re1 Re8 24.Ng5 d5 25.Qf3 Nxd4 26.cxd4 Ne4 27.Nxe4 dxe4 
28.Rxe4 Qxc2 29.Rh4 Qd2 30.Rf1 Qe3+ 31.Qxe3 Rxe3 32.Rd1 Rd8 33.d5 Rd6 34.
Rc4 Re5 35.Rb4 Kf8 36.Rdb1 Rdxd5 37.Rxb6 Rd4 38.R6b4 Ree4 39.Rxd4 Rxd4 40.
Kf2 Rxa4 41.Rb7 a5 42.Ra7 Ra3 43.h4 Ra1 44.g4 a4 45.g5 a3 46.Kg2 Ke8 47.
Kh2 a2 48.Kg2 Kd8 49.Kh2 Kc8 50.Kg2 Kb8 51.Ra4 Kb7 52.Ra3 Kb6 53.Ra8 Kc5 
54.Ra4 Kd5 55.Kh2 Ke5 56.Ra7 Kd4 57.Kg2 Ke4 58.Re7+ Kd4 59.Rd7+ Kc5 60.Ra7
Kd6 61.Kh2 Kd5 62.Kg2 Ke6 63.Ra5 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.06"]
[Round "7"]
[White "Piket, Marcel"]
[Black "Martens, Martin"]
[Result "1/2-1/2"]
[WhiteElo "2350"]
[BlackElo "2325"]
[ECO "A47"]
[EventDate "1990.07.30"]
[PlyCount "27"]

1.d4 e6 2.Nf3 c5 3.e3 Nf6 4.Bd3 cxd4 5.exd4 b6 6.O-O Bb7 7.Nbd2 Be7 8.c3 
O-O 9.Qe2 d6 10.Re1 Re8 11.Ng5 g6 12.Ndf3 Bf8 13.Ne4 h6 14.Nxf6+ 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.06"]
[Round "7"]
[White "Polgar, Zsofia"]
[Black "Van Wely, Loek"]
[Result "0-1"]
[WhiteElo "2425"]
[BlackElo "2400"]
[ECO "B09"]
[EventDate "1990.07.30"]
[PlyCount "76"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 c5 6.dxc5 Qa5 7.Bd3 Qxc5 8.Qe2 
Bg4 9.h3 Bxf3 10.Qxf3 O-O 11.Be3 Qa5 12.g4 Nc6 13.Bd2 Nb4 14.h4 h5 15.g5 
Ng4 16.Nd5 Nxd3+ 17.Qxd3 Qc5 18.Rf1 e6 19.Bb4 Qd4 20.Ne7+ Kh7 21.Qxd4 Bxd4
22.O-O-O Ne3 23.Rxd4 Nxf1 24.Bxd6 Rfd8 25.e5 Rd7 26.Rd3 Re8 27.Rh3 Rexe7 
28.Kd1 Re8 29.c4 Rc8 30.b3 b5 31.cxb5 Rc5 32.Ke2 Rc1 33.a4 Rb1 34.Rc3 Nh2 
35.a5 Rb7 36.b4 Rxb5 37.Rc7 Kg7 38.Bc5 R1xb4 0-1

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.07"]
[Round "8"]
[White "Tukmakov, Vladimir"]
[Black "Polgar, Judit"]
[Result "1-0"]
[WhiteElo "2520"]
[BlackElo "2540"]
[ECO "A57"]
[EventDate "1990.07.30"]
[PlyCount "67"]

1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.b6 d6 6.Nc3 Nbd7 7.e4 g6 8.a4 Nxb6 9.
a5 Nbd7 10.f4 Bg7 11.Bc4 O-O 12.Nf3 Ne8 13.O-O Nc7 14.Qd3 Nb5 15.Bd2 Nd4 
16.Na4 Ra7 17.Nxd4 Bxd4+ 18.Kh1 Nf6 19.Bc3 Bxc3 20.Nxc3 Qc7 21.Rae1 Qxa5 
22.e5 Ne8 23.e6 f5 24.g4 Qb6 25.gxf5 Rxf5 26.Nd1 Nf6 27.Ne3 Rh5 28.Re2 
Bxe6 29.dxe6 Qc6+ 30.Rg2 d5 31.Ba2 Rh3 32.Qe2 Qa4 33.Nxd5 Nh5 34.Bc4 {
Hertneck} 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.07"]
[Round "8"]
[White "Fedorowicz, John"]
[Black "Brenninkmeijer, Joris"]
[Result "1/2-1/2"]
[WhiteElo "2565"]
[BlackElo "2510"]
[ECO "B13"]
[EventDate "1990.07.30"]
[PlyCount "31"]

1.c4 c6 2.e4 d5 3.exd5 cxd5 4.d4 Nf6 5.Nc3 Nc6 6.Bg5 Be6 7.Be2 Qa5 8.c5 
Ne4 9.Nf3 Bg4 10.Bd2 Nxd2 11.Nxd2 Bxe2 12.Nxe2 g6 13.O-O Bg7 14.Nf3 O-O 
15.a3 Qc7 16.Rc1 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.07"]
[Round "8"]
[White "Uhlmann, Wolfgang"]
[Black "Hansen, Curt"]
[Result "1/2-1/2"]
[WhiteElo "2505"]
[BlackElo "2560"]
[ECO "E60"]
[EventDate "1990.07.30"]
[PlyCount "110"]

1.c4 c5 2.Nf3 Nf6 3.Nc3 Nc6 4.g3 g6 5.d4 cxd4 6.Nxd4 d6 7.Bg2 Bd7 8.O-O 
Bg7 9.b3 O-O 10.Bb2 Qa5 11.e3 Rfc8 12.Qe2 Rab8 13.Rfc1 a6 14.a3 Qd8 15.Nd5
Nxd5 16.Bxd5 e5 17.Nf3 Ne7 18.Rd1 Nxd5 19.Rxd5 Be6 20.Rd2 Qe7 21.a4 b5 22.
axb5 axb5 23.cxb5 Bg4 24.e4 Qf6 25.Rd3 Rxb5 26.Kg2 d5 27.exd5 Qf5 28.Ra4 
h5 29.Re4 Rc2 30.Qxc2 Qxe4 31.Qc3 Rxd5 32.Re3 Qf5 33.h4 Bh6 34.Nxe5 Bh3+ 
35.Kg1 Rd1+ 36.Re1 Qe4 37.Nf3 Rxe1+ 38.Nxe1 f6 39.Qc4+ Qxc4 40.bxc4 Kf7 
41.Nd3 Be6 42.c5 Bc4 43.Nb4 Bd2 44.Nc6 Ke6 45.Nd4+ Ke7 46.c6 Bb4 47.Nc2 
Bc5 48.Ba3 Bxa3 49.Nxa3 Bd3 50.f4 Kd6 51.Kf2 Kxc6 52.Ke3 Bf5 53.Kd4 Be6 
54.Nc2 Kd6 55.Ne3 Bd7 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.07"]
[Round "8"]
[White "Piket, Jeroen"]
[Black "Stohl, Igor"]
[Result "1/2-1/2"]
[WhiteElo "2495"]
[BlackElo "2525"]
[ECO "D03"]
[EventDate "1990.07.30"]
[PlyCount "20"]

1.d4 Nf6 2.Bg5 d5 3.Nf3 Ne4 4.Bf4 c5 5.e3 Qb6 6.Qc1 Nc6 7.c3 Bf5 8.Be2 h6 
9.O-O e6 10.Nbd2 Be7 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.07"]
[Round "8"]
[White "Serper, Grigory"]
[Black "Kuijf, Marinus"]
[Result "1-0"]
[WhiteElo "2485"]
[BlackElo "2445"]
[ECO "D41"]
[EventDate "1990.07.30"]
[PlyCount "111"]

1.c4 c6 2.e4 d5 3.exd5 cxd5 4.cxd5 Nf6 5.Nc3 Nxd5 6.Bc4 Nxc3 7.bxc3 e6 8.
Nf3 Be7 9.O-O Qc7 10.Qe2 Nd7 11.d4 O-O 12.Bd2 b6 13.Bd3 Bb7 14.Rac1 Rfe8 
15.Rfe1 Ba3 16.Rc2 Bc6 17.c4 Bd6 18.c5 Be7 19.Ng5 Bxg5 20.Bxg5 bxc5 21.
dxc5 Qa5 22.Rec1 Rab8 23.Qh5 Nf8 24.Rc3 Qxa2 25.Bc4 Qb2 26.Bf4 Rb4 27.Qd1 
Ra4 28.h4 Qb7 29.h5 e5 30.Bg3 h6 31.Bh4 Ne6 32.Rg3 Qd7 33.Qxd7 Bxd7 34.Bf6
Ng5 35.Bxg5 hxg5 36.Rxg5 Kf8 37.c6 Bxc6 38.Bxf7 Kxf7 39.Rxc6 Re7 40.Rcg6 
Kf8 41.h6 gxh6 42.Rxh6 Ke8 43.Rd6 Kf7 44.Rh5 e4 45.Rh7+ Ke8 46.Rh8+ Kf7 
47.Rc6 Kg7 48.Rch6 Re5 49.R8h7+ Kg8 50.Rb7 e3 51.fxe3 Rxe3 52.Rc6 Re8 53.
Rcc7 Ra8 54.Rg7+ Kh8 55.Rh7+ Kg8 56.Rbg7+ 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.07"]
[Round "8"]
[White "Dorfman, Iosif"]
[Black "Hellers, Ferdinand"]
[Result "0-1"]
[WhiteElo "2580"]
[BlackElo "2520"]
[ECO "A29"]
[EventDate "1990.07.30"]
[PlyCount "84"]

1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3 d5 5.cxd5 Nxd5 6.Bg2 Nb6 7.O-O Be7 8.a3 
O-O 9.b4 Be6 10.Rb1 f6 11.d3 a6 12.Ne4 Ba2 13.Rb2 Bd5 14.Nc5 Rb8 15.e4 Bf7
16.Be3 Nd7 17.Nb3 a5 18.b5 a4 19.Nbd2 Bxa3 20.Rb1 Nd4 21.Bxd4 exd4 22.Qxa4
Bc5 23.Qc2 Qe7 24.Nb3 Qd6 25.Nfd2 Kh8 26.Nc4 Qe7 27.f4 Bb4 28.Nb2 Ra8 29.
Kh1 Bc3 30.Nd1 Nc5 31.Nc1 Ra3 32.Nxc3 Rxc3 33.Qd2 Ra8 34.Rf2 Raa3 35.Bf1 
Nxe4 36.dxe4 Qxe4+ 37.Kg1 Qxb1 38.Qxd4 Rxc1 39.Qd8+ Bg8 40.Kg2 Qe4+ 41.Kh3
Qf5+ 42.Kg2 Qd5+ 0-1

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.07"]
[Round "8"]
[White "Polgar, Zsuzsa"]
[Black "Anand, Viswanathan"]
[Result "0-1"]
[WhiteElo "2510"]
[BlackElo "2610"]
[ECO "A41"]
[EventDate "1990.07.30"]
[PlyCount "130"]

1.Nf3 d6 2.d4 Bg4 3.e4 Nf6 4.Nc3 e6 5.h3 Bh5 6.Qe2 a6 7.g4 Bg6 8.h4 h5 9.
g5 Nfd7 10.Bh3 b5 11.a3 Be7 12.Bf4 Nb6 13.Bg3 c6 14.O-O O-O 15.Nd2 d5 16.
exd5 cxd5 17.f4 Nc6 18.Nf3 Bd6 19.Rad1 Ne7 20.Ne5 Bxe5 21.fxe5 Rc8 22.Rc1 
Nc4 23.Nd1 Bf5 24.Bxf5 Nxf5 25.Qd3 Qb6 26.Bf2 Rc6 27.Ra1 Rfc8 28.b3 Na5 
29.Ra2 R6c7 30.Rb2 Nc6 31.c3 Nce7 32.Qf3 g6 33.Rc2 a5 34.Nb2 Qa7 35.Rfc1 
b4 36.axb4 axb4 37.c4 dxc4 38.d5 Qb7 39.Nxc4 Qxd5 40.Kg2 Qxf3+ 41.Kxf3 Rd7
42.Nd2 Rcd8 43.Ne4 Rd3+ 44.Ke2 Rxb3 45.Rd1 Nd5 46.Rdc1 Ra3 47.Rc8 Ra8 48.
Rxd8+ Rxd8 49.Nf6+ Nxf6 50.exf6 b3 51.Rb1 Rb8 52.Kd3 b2 53.Kc2 Kf8 54.Rxb2
Rxb2+ 55.Kxb2 Ke8 56.Kc3 Kd7 57.Kd3 e5 58.Ke4 Ke6 59.Be1 Nd6+ 60.Kf3 Kd5 
61.Bg3 Kd4 62.Bf2+ Kd3 63.Bc5 Nf5 64.Bf2 Nd4+ 65.Kg2 Ke2 0-1

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.07"]
[Round "8"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Visser, Yge"]
[Result "1/2-1/2"]
[WhiteElo "2440"]
[BlackElo "2340"]
[ECO "C16"]
[EventDate "1990.07.30"]
[PlyCount "22"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Qd7 5.Bd2 b6 6.Qg4 Bf8 7.Nf3 Ba6 8.Bxa6 
Nxa6 9.O-O Ne7 10.Nd1 c5 11.Ne3 Ng6 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.07"]
[Round "8"]
[White "Nijboer, Friso"]
[Black "Martens, Martin"]
[Result "1-0"]
[WhiteElo "2485"]
[BlackElo "2325"]
[ECO "B82"]
[EventDate "1990.07.30"]
[PlyCount "111"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 Be7 7.Bd3 a6 8.a4 Qc7 
9.O-O b6 10.Nf3 Nbd7 11.Qe2 Bb7 12.e5 Nd5 13.Nxd5 Bxd5 14.Bxa6 O-O 15.Bb5 
Rfc8 16.b3 dxe5 17.Bxd7 Qxd7 18.Nxe5 Qc7 19.c4 Bb7 20.Bb2 Rd8 21.Kh1 Bf6 
22.Rad1 h6 23.h3 Rac8 24.Rxd8+ Rxd8 25.Rd1 Qe7 26.Rxd8+ Qxd8 27.Qd3 Qa8 
28.Qd2 Be4 29.Bd4 Bd8 30.Kg1 f6 31.Ng4 h5 32.Ne3 Bc7 33.Nd1 Qd8 34.Nc3 Bf5
35.Nb5 Bb8 36.Qe3 e5 37.fxe5 fxe5 38.Bxb6 Qd1+ 39.Kh2 Bc2 40.Bc7 Bxc7 41.
Nxc7 Bxb3 42.Qxe5 Bxa4 43.Ne6 Qd7 44.Nf4 Qe8 45.Qxh5 Qb8 46.Qd5+ Kh8 47.
Qd4 Bc6 48.c5 Qe8 49.h4 Qe1 50.Qd8+ Kh7 51.Qg5 Qe4 52.Nh5 Qd4 53.Qf5+ Kg8 
54.Nf4 Qf2 55.Qg5 Qd4 56.h5 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.07"]
[Round "8"]
[White "Van Wely, Loek"]
[Black "Psakhis, Lev"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2575"]
[ECO "E20"]
[EventDate "1990.07.30"]
[PlyCount "85"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.g3 Bxc3+ 5.bxc3 O-O 6.Bg2 d6 7.a4 Nbd7 8.Nf3 
Rb8 9.a5 b6 10.O-O Bb7 11.a6 Ba8 12.Ne1 Bxg2 13.Nxg2 Qe7 14.f3 d5 15.Qd3 
c5 16.cxd5 exd5 17.g4 Rfd8 18.h4 b5 19.Bf4 c4 20.Qd2 Ne8 21.Bxb8 Nxb8 22.
Qe3 Qd6 23.Qf4 Qb6 24.e4 Nxa6 25.Ne3 Nac7 26.exd5 a5 27.Rfe1 a4 28.Qe5 Qf6
29.Rab1 h6 30.Kg2 a3 31.Ra1 Qa6 32.Qe7 Ra8 33.Qd7 Qd6 34.Qxd6 Nxd6 35.Ra2 
b4 36.cxb4 Ncb5 37.Rea1 c3 38.Rc1 Rc8 39.Kf2 Nc4 40.Nxc4 Rxc4 41.Ke3 Kf8 
42.Re1 Rxd4 43.Rea1 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.07"]
[Round "8"]
[White "Dam, Ruurd"]
[Black "Polgar, Zsofia"]
[Result "1-0"]
[WhiteElo "2270"]
[BlackElo "2425"]
[ECO "B44"]
[EventDate "1990.07.30"]
[PlyCount "45"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nb5 d6 6.Bf4 e5 7.Be3 Nf6 8.Bg5 a6
9.Bxf6 gxf6 10.N5c3 f5 11.Qh5 Nd4 12.Bc4 Qc7 13.Nd2 Nxc2+ 14.Ke2 Nxa1 15.
Rxa1 b5 16.Nd5 Qd8 17.Bb3 Ra7 18.exf5 Bg7 19.Ne4 a5 20.Rc1 Ba6 21.Rc6 Rf8 
22.f6 Bh8 23.Rxd6 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.07"]
[Round "8"]
[White "Piket, Marcel"]
[Black "Bertholee, Rob"]
[Result "1-0"]
[WhiteElo "2350"]
[BlackElo "2360"]
[ECO "A47"]
[EventDate "1990.07.30"]
[PlyCount "105"]

1.d4 e6 2.Nf3 c5 3.e3 Nf6 4.Bd3 Nc6 5.c3 b6 6.O-O Bb7 7.Re1 Rc8 8.Nbd2 Be7
9.a3 d5 10.Qe2 O-O 11.b4 Qc7 12.Bb2 e5 13.Bf5 e4 14.Ne5 Rce8 15.Nxc6 Qxc6 
16.b5 Qd6 17.c4 cxd4 18.Bxd4 Bc8 19.Bxc8 Rxc8 20.a4 Qe6 21.Rec1 Bb4 22.
cxd5 Nxd5 23.Nf1 Nc3 24.Qb2 Qc4 25.Ng3 Rfd8 26.Rc2 Ba5 27.Rac1 Rxd4 28.
exd4 Qxd4 29.Nf5 Qb4 30.Qxb4 Bxb4 31.Kf1 Rc5 32.Ne7+ Kf8 33.Nc6 a5 34.bxa6
Rxc6 35.a7 Rc8 36.Rxc3 Bxc3 37.Rxc3 Ra8 38.Rc7 g6 39.Ke2 Kg7 40.Ke3 Kf6 
41.Kxe4 Ke6 42.Rb7 f5+ 43.Kd4 Kd6 44.Rxh7 Re8 45.Kc4 Kc6 46.Rg7 g5 47.Rxg5
Kb7 48.Rxf5 Re1 49.a5 Re4+ 50.Kd3 Rg4 51.axb6 Rxg2 52.Rf7+ Ka8 53.Rf8+ 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.09"]
[Round "9"]
[White "Anand, Viswanathan"]
[Black "Tukmakov, Vladimir"]
[Result "1/2-1/2"]
[WhiteElo "2610"]
[BlackElo "2520"]
[ECO "B56"]
[EventDate "1990.07.30"]
[PlyCount "94"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be3 Ng4 7.Bg5 Qb6 8.Bb5 
Bd7 9.O-O Qxd4 10.Bxc6 Qxd1 11.Bxd7+ Kxd7 12.Raxd1 h6 13.Bc1 g5 14.Ne2 Rc8
15.c3 Bg7 16.f3 Ne5 17.Ng3 Ng6 18.Nf5 Be5 19.g3 e6 20.Ne3 h5 21.Ng2 h4 22.
f4 gxf4 23.gxf4 Bg7 24.Ne3 b5 25.Kh1 h3 26.Rg1 Bh6 27.Ng4 Bxf4 28.Bxf4 
Nxf4 29.Rgf1 Ng6 30.Rxf7+ Kc6 31.Rxa7 Ra8 32.Rg7 Rhg8 33.Rxg8 Rxg8 34.Rf1 
Ne5 35.Nxe5+ dxe5 36.Rf3 Rg2 37.Rxh3 Rxb2 38.Rg3 Re2 39.h4 Rxe4 40.Rh3 
Re1+ 41.Kg2 Re2+ 42.Kf3 Rc2 43.Ke4 Re2+ 44.Kd3 Rxa2 45.h5 b4 46.h6 e4+ 47.
Kxe4 b3 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.09"]
[Round "9"]
[White "Brenninkmeijer, Joris"]
[Black "Polgar, Judit"]
[Result "0-1"]
[WhiteElo "2510"]
[BlackElo "2540"]
[ECO "D20"]
[EventDate "1990.07.30"]
[PlyCount "74"]

1.d4 d5 2.c4 dxc4 3.e4 c5 4.d5 Nf6 5.Nc3 e6 6.Bxc4 exd5 7.Nxd5 Nxd5 8.Bxd5
Be7 9.Nf3 O-O 10.O-O Qb6 11.Be3 Nc6 12.Rc1 Be6 13.Bxe6 fxe6 14.Qe2 Qb4 15.
Qc2 Rac8 16.a3 Qb5 17.Qb1 Na5 18.Rc3 Nb3 19.e5 c4 20.Qe4 a5 21.Qg4 Qd5 22.
Ng5 Rc6 23.Rd1 Qxe5 24.Rxc4 Bxg5 25.Bxg5 h5 26.Qe4 Qxb2 27.f4 Nd2 28.Rxd2 
Qxd2 29.Rxc6 Qd1+ 30.Kf2 bxc6 31.Qxe6+ Kh8 32.h3 Rb8 33.Qxc6 Qd3 34.Qf3 
Rb2+ 35.Kg3 Rb3 36.Qxd3 Rxd3+ 37.Kh4 Rxa3 0-1

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.09"]
[Round "9"]
[White "Hansen, Curt"]
[Black "Visser, Yge"]
[Result "1-0"]
[WhiteElo "2560"]
[BlackElo "2340"]
[ECO "E94"]
[EventDate "1990.07.30"]
[PlyCount "75"]

1.c4 g6 2.d4 Nf6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 Na6 7.O-O e5 8.Re1 c6 
9.Bf1 Bg4 10.Be3 Qe7 11.d5 Nh5 12.h3 Bd7 13.dxc6 bxc6 14.Re2 Rfd8 15.Rd2 
Be8 16.Rb1 Nc7 17.c5 dxc5 18.Bxc5 Rxd2 19.Bxe7 Rxd1 20.Rxd1 Nb5 21.Na4 Nd4
22.Nxd4 exd4 23.Nc5 Nf4 24.Bc4 h6 25.h4 d3 26.g3 Ne2+ 27.Kf1 Rb8 28.Nxd3 
Nd4 29.Bc5 a5 30.Nf4 Nf3 31.Nxg6 Kh7 32.Kg2 Rxb2 33.Kxf3 Rc2 34.Nf8+ Kg8 
35.Rd8 Rxc4 36.Rxe8 Rc3+ 37.Kg2 f6 38.Ne6+ 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.09"]
[Round "9"]
[White "Hellers, Ferdinand"]
[Black "Fedorowicz, John"]
[Result "1/2-1/2"]
[WhiteElo "2520"]
[BlackElo "2565"]
[ECO "B66"]
[EventDate "1990.07.30"]
[PlyCount "25"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
h6 9.Be3 Nxd4 10.Qxd4 Qc7 11.f4 b5 12.Be2 Bb7 13.Bf3 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.09"]
[Round "9"]
[White "Serper, Grigory"]
[Black "Piket, Jeroen"]
[Result "1/2-1/2"]
[WhiteElo "2485"]
[BlackElo "2495"]
[ECO "A36"]
[EventDate "1990.07.30"]
[PlyCount "106"]

1.c4 g6 2.Nc3 Bg7 3.g3 d6 4.Bg2 Nf6 5.e4 c5 6.Nge2 Nc6 7.O-O O-O 8.a3 a6 
9.Rb1 Rb8 10.b4 Be6 11.d3 cxb4 12.axb4 b5 13.cxb5 axb5 14.d4 Bc4 15.Re1 e5
16.dxe5 dxe5 17.Nd5 Nxd5 18.exd5 Nd4 19.Nxd4 exd4 20.Bb2 Qb6 21.Qd2 Rfd8 
22.Red1 d3 23.Be4 Bxb2 24.Qxb2 Bxd5 25.Bxd3 Ba8 26.Be2 Re8 27.Rbc1 Re7 28.
Rd3 Rbe8 29.Bf3 Bxf3 30.Rxf3 Qb7 31.Kg2 Re2 32.Qf6 R2e6 33.Qf4 Re5 34.Qf6 
Rf5 35.Qc6 Qxc6 36.Rxc6 Re4 37.Rxf5 gxf5 38.Rc5 Rxb4 39.Rxf5 Kg7 40.Rc5 h6
41.Rc6 Rb3 42.Rb6 b4 43.g4 Kh7 44.f3 Kg7 45.Kg3 Rb1 46.f4 b3 47.f5 Rg1+ 
48.Kh4 Rg2 49.Kh3 Rb2 50.Kg3 Kh7 51.Rb8 Kg7 52.Rb7 Kf6 53.Rb6+ Kg7 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.09"]
[Round "9"]
[White "Stohl, Igor"]
[Black "Uhlmann, Wolfgang"]
[Result "0-1"]
[WhiteElo "2525"]
[BlackElo "2505"]
[ECO "E97"]
[EventDate "1990.07.30"]
[PlyCount "70"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Nf3 e5 7.O-O Nc6 8.d5 Ne7 
9.Nd2 a5 10.a3 Bd7 11.Rb1 a4 12.b3 axb3 13.Nxb3 c5 14.dxc6 Bxc6 15.Qd3 Nh5
16.Bxh5 gxh5 17.Qh3 f5 18.Qxh5 fxe4 19.Qe2 Ng6 20.Nd5 Kh8 21.Qxe4 Ra4 22.
Qe2 Qh4 23.Nb4 Bd7 24.g3 Qh3 25.Bb2 Bh6 26.f3 Be6 27.Rbd1 Nf4 28.gxf4 Rg8+
29.Kh1 Bxc4 30.Qf2 Bxf4 31.Rg1 Rxg1+ 32.Rxg1 Bxb3 33.Rg4 Qh6 34.Nd3 Bd5 
35.Nxf4 Rxf4 0-1

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.09"]
[Round "9"]
[White "Psakhis, Lev"]
[Black "Piket, Marcel"]
[Result "1-0"]
[WhiteElo "2575"]
[BlackElo "2350"]
[ECO "E81"]
[EventDate "1990.07.30"]
[PlyCount "81"]

1.e4 d6 2.d4 Nf6 3.f3 g6 4.c4 Bg7 5.Nc3 O-O 6.Nge2 c5 7.Be3 Nc6 8.d5 Ne5 
9.Ng3 h5 10.Be2 h4 11.Nf1 e6 12.Nd2 exd5 13.cxd5 a6 14.a4 Bd7 15.O-O b5 
16.axb5 axb5 17.Rxa8 Qxa8 18.Bxb5 Bxb5 19.Nxb5 Qa6 20.Nc3 Rb8 21.Qc2 Nh5 
22.b3 Rb4 23.Na2 Rb8 24.Nc1 Bf6 25.Kf2 Kg7 26.g4 hxg3+ 27.hxg3 Rh8 28.Rh1 
Qc8 29.Qd1 g5 30.Nc4 Nxc4 31.bxc4 Be5 32.Ne2 Kg6 33.f4 Nf6 34.Rxh8 Qxh8 
35.Kg2 gxf4 36.gxf4 Qh4 37.Qg1 Qg4+ 38.Kf1 Qxg1+ 39.Kxg1 Bb2 40.Ng3 Ng4 
41.Bd2 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.09"]
[Round "9"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Dorfman, Iosif"]
[Result "1/2-1/2"]
[WhiteElo "2440"]
[BlackElo "2580"]
[ECO "B67"]
[EventDate "1990.07.30"]
[PlyCount "91"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 Nc6 7.Qd2 e6 8.O-O-O 
Bd7 9.f4 b5 10.Nxc6 Bxc6 11.Bd3 Be7 12.Rhe1 O-O 13.Kb1 b4 14.Ne2 Nxe4 15.
Bxe4 Bxe4 16.Bxe7 Qxe7 17.Ng3 d5 18.Nxe4 dxe4 19.Rxe4 Rfd8 20.Rd4 Rxd4 21.
Qxd4 g6 22.g3 Qb7 23.b3 h5 24.Kb2 a5 25.a3 Rc8 26.axb4 axb4 27.Qd7 Qa8 28.
Qe7 Qe4 29.Rd8+ Rxd8 30.Qxd8+ Kg7 31.Qd2 e5 32.c3 exf4 33.gxf4 bxc3+ 34.
Kxc3 Qc6+ 35.Kb2 Kh7 36.b4 Qc4 37.Ka3 h4 38.Qe3 Qc2 39.h3 Qc4 40.Qb3 Qc1+ 
41.Ka2 Qxf4 42.b5 Qf2+ 43.Kb1 Qe1+ 44.Kb2 Qe5+ 45.Ka2 Qe2+ 46.Kb1 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.09"]
[Round "9"]
[White "Kuijf, Marinus"]
[Black "Dam, Ruurd"]
[Result "1/2-1/2"]
[WhiteElo "2445"]
[BlackElo "2270"]
[ECO "B26"]
[EventDate "1990.07.30"]
[PlyCount "100"]

1.e4 c5 2.Ne2 d6 3.Nbc3 Nf6 4.g3 g6 5.Bg2 Bg7 6.d3 Nc6 7.h3 Rb8 8.Be3 Bd7 
9.Qd2 b5 10.Bh6 O-O 11.Bxg7 Kxg7 12.O-O e5 13.f4 b4 14.Nd1 Nd4 15.Ne3 Nh5 
16.Kh2 Nxe2 17.Qxe2 exf4 18.gxf4 Qh4 19.Qf2 Qxf2 20.Rxf2 f5 21.exf5 Bxf5 
22.Nc4 Be6 23.Nxd6 Nxf4 24.Re1 Rb6 25.Rxf4 Rxd6 26.Rxf8 Kxf8 27.b3 Kf7 28.
Re5 Ra6 29.Rxc5 Rxa2 30.Kg3 a5 31.Bc6 Ke7 32.Ba4 Kd6 33.Rc6+ Kd5 34.Rc4 
Kd6 35.Rc6+ Kd5 36.h4 Bd7 37.Ra6 Bxa4 38.Rxa5+ Kd4 39.Rxa4 Rxa4 40.bxa4 
Kc3 41.a5 Kxc2 42.a6 b3 43.a7 b2 44.a8=Q b1=Q 45.Qe4 Qg1+ 46.Kf4 Qf1+ 47.
Kg5 Qxd3 48.Qg2+ Kc3 49.Qc6+ Kd2 50.Qg2+ Kc3 1/2-1/2

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.09"]
[Round "9"]
[White "Bertholee, Rob"]
[Black "Nijboer, Friso"]
[Result "1-0"]
[WhiteElo "2360"]
[BlackElo "2485"]
[ECO "B08"]
[EventDate "1990.07.30"]
[PlyCount "71"]

1.Nc3 g6 2.d4 Bg7 3.e4 d6 4.Be2 Nf6 5.Nf3 O-O 6.O-O Nc6 7.d5 Nb8 8.h3 c6 
9.Re1 b5 10.dxc6 b4 11.Nd5 Nxc6 12.a3 Bb7 13.axb4 Nxd5 14.Qxd5 e6 15.Qb3 
Nd4 16.Nxd4 Bxd4 17.c3 Bxf2+ 18.Kxf2 Qh4+ 19.Kf1 Bxe4 20.Qd1 f5 21.Bf3 g5 
22.Be3 d5 23.Bxe4 fxe4+ 24.Kg1 Rf3 25.Qd2 Raf8 26.Rf1 g4 27.hxg4 Qxg4 28.
Rf2 h5 29.Rxa7 h4 30.Bd4 Rxf2 31.Bxf2 h3 32.Bd4 e5 33.Bxe5 h2+ 34.Kxh2 
Qh5+ 35.Kg1 Qxe5 36.Qh6 1-0

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.09"]
[Round "9"]
[White "Van Wely, Loek"]
[Black "Polgar, Zsuzsa"]
[Result "0-1"]
[WhiteElo "2400"]
[BlackElo "2510"]
[ECO "D24"]
[EventDate "1990.07.30"]
[PlyCount "58"]

1.d4 d5 2.Nf3 c5 3.c4 dxc4 4.Nc3 Nf6 5.e4 cxd4 6.Qxd4 Qxd4 7.Nxd4 e5 8.
Ndb5 Kd8 9.Bg5 a6 10.Nd5 axb5 11.Nxf6 Bb4+ 12.Ke2 Be7 13.Rd1+ Bd7 14.Nxd7 
Nxd7 15.g3 Rxa2 16.Bh3 Rxb2+ 17.Kf1 Bxg5 18.Rxd7+ Ke8 19.Kg2 Rd2 20.Rxb7 
c3 21.Rxb5 Be3 22.Ra1 Rxf2+ 23.Kh1 Ke7 24.Rxe5+ Kf6 25.Rd5 Rb8 26.e5+ Kg6 
27.Rd3 Re2 28.Bg4 c2 29.Bxe2 Rb1+ {Ftacnik,L} 0-1

[Event "9th OHRA Open"]
[Site "Amsterdam NED"]
[Date "1990.08.09"]
[Round "9"]
[White "Martens, Martin"]
[Black "Polgar, Zsofia"]
[Result "1/2-1/2"]
[WhiteElo "2325"]
[BlackElo "2425"]
[ECO "B47"]
[EventDate "1990.07.30"]
[PlyCount "47"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.g3 d6 7.Bg2 a6 8.O-O Be7
9.Re1 Bd7 10.Nxc6 bxc6 11.Na4 Rd8 12.c4 c5 13.Nc3 Bf6 14.Bf4 Be5 15.Bxe5 
dxe5 16.Qg4 g6 17.f4 Ne7 18.Qg5 Nc6 19.Nd5 exd5 20.exd5 O-O 21.dxc6 f6 22.
Bd5+ Kg7 23.Qh4 Bxc6 24.fxe5 1/2-1/2

