[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.15"]
[Round "1"]
[White "Barendregt, Johan"]
[Black "Damjanovic, Mato"]
[Result "0-1"]
[ECO "B31"]
[EventDate "1969.07.15"]
[PlyCount "74"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.c3 Nf6 6.Re1 O-O 7.d4 cxd4 8.cxd4 
d5 9.e5 Ne4 10.Nc3 Nxc3 11.bxc3 Na5 12.Ba3 Bd7 13.Bd3 Rc8 14.e6 fxe6 15.
Ng5 Rf6 16.Re3 Rxc3 17.Bb4 Rxd3 18.Qxd3 Nc4 19.Ree1 a5 20.Bc3 b5 21.Nf3 b4
22.Bd2 Rxf3 23.gxf3 e5 24.dxe5 Bf5 25.Qd4 e6 26.Rac1 Qc7 27.f4 Bf8 28.Be3 
Qc6 29.f3 a4 30.Qa7 Qb5 31.Rxc4 dxc4 32.Rd1 Bd3 33.Qd4 b3 34.axb3 axb3 35.
Qb2 c3 36.Qxc3 b2 37.Qc8 Qb3 0-1

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.15"]
[Round "1"]
[White "Donner, Jan"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[ECO "A79"]
[EventDate "1969.07.15"]
[PlyCount "81"]

1.c4 Nf6 2.d4 c5 3.d5 d6 4.Nc3 g6 5.e4 Bg7 6.Be2 O-O 7.Nf3 e6 8.O-O exd5 
9.cxd5 Re8 10.Nd2 Na6 11.f3 Nc7 12.a4 Nd7 13.Nc4 Ne5 14.Ne3 f5 15.f4 Nf7 
16.exf5 gxf5 17.Nc4 b6 18.Be3 Bb7 19.Qd2 Bxc3 20.bxc3 Nxd5 21.Bf3 Nxe3 22.
Nxe3 Bxf3 23.Rxf3 Nh6 24.Nxf5 Nxf5 25.Qd5+ Kh8 26.Qxf5 Qe7 27.Rd1 Rad8 28.
c4 Qe6 29.Qd3 Qg6 30.f5 Qf6 31.Re3 Re5 32.Rxe5 Qxe5 33.Qf3 Re8 34.f6 Rf8 
35.f7 Kg7 36.Rf1 Qe6 37.Qg3+ Kh8 38.Qc3+ Qe5 39.Qf3 Kg7 40.h3 h6 41.Kh1 
1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.15"]
[Round "1"]
[White "Gheorghiu, Florin"]
[Black "Vasiukov, Evgeny"]
[Result "1/2-1/2"]
[ECO "A39"]
[EventDate "1969.07.15"]
[PlyCount "34"]

1.d4 Nf6 2.c4 c5 3.Nf3 cxd4 4.Nxd4 Nc6 5.Nc3 g6 6.g3 Bg7 7.Bg2 O-O 8.O-O 
Nxd4 9.Qxd4 d6 10.Qd3 a6 11.Bd2 Rb8 12.Rac1 Bd7 13.a4 Bc6 14.b3 Nd7 15.
Rfd1 Nc5 16.Qc2 Re8 17.Be3 Bxg2 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.15"]
[Round "1"]
[White "Hartoch, Robert"]
[Black "Kavalek, Lubomir"]
[Result "1/2-1/2"]
[ECO "A24"]
[EventDate "1969.07.15"]
[PlyCount "47"]

1.c4 g6 2.g3 Bg7 3.Bg2 e5 4.Nc3 d6 5.e3 Nf6 6.Nge2 O-O 7.O-O c6 8.d4 Re8 
9.dxe5 dxe5 10.b3 a5 11.Ba3 Na6 12.Qxd8 Rxd8 13.Rfd1 Be6 14.Bd6 Nd7 15.Na4
e4 16.Rac1 Bg4 17.Kf1 Re8 18.h3 Bxe2+ 19.Kxe2 Rad8 20.g4 f5 21.gxf5 gxf5 
22.h4 Ne5 23.Bxe5 Bxe5 24.Bh3 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.15"]
[Round "1"]
[White "Ivkov, Borislav"]
[Black "Byrne, Robert"]
[Result "1/2-1/2"]
[ECO "E66"]
[EventDate "1969.07.15"]
[PlyCount "68"]

1.c4 g6 2.d4 Nf6 3.g3 Bg7 4.Bg2 O-O 5.Nc3 d6 6.Nf3 c5 7.O-O Nc6 8.d5 Na5 
9.Nd2 a6 10.Qc2 Rb8 11.b3 b5 12.Bb2 e5 13.e3 Ng4 14.Nd1 f5 15.f3 Nf6 16.f4
e4 17.Bc3 Bd7 18.Nf2 Ne8 19.g4 Nb7 20.g5 Qe7 21.Nh1 Bxc3 22.Qxc3 Qg7 23.
Qc2 Nc7 24.Ng3 Na8 25.h4 Nb6 26.h5 Na5 27.h6 Qh8 28.Bh3 Rf7 29.Rab1 Kf8 
30.Rfc1 Ke7 31.Bf1 b4 32.a3 Nb7 33.Qa2 a5 34.a4 Kd8 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.15"]
[Round "1"]
[White "Liberzon, Vladimir"]
[Black "Langeweg, Christian"]
[Result "1-0"]
[ECO "A14"]
[EventDate "1969.07.15"]
[PlyCount "75"]

1.c4 Nf6 2.Nf3 e6 3.g3 d5 4.Bg2 Be7 5.O-O O-O 6.b3 c5 7.e3 Nc6 8.Bb2 b6 9.
Nc3 Bb7 10.Qe2 Rc8 11.d3 Rc7 12.Rfd1 Rd7 13.cxd5 Nxd5 14.Nxd5 Rxd5 15.d4 
Rd7 16.dxc5 Bxc5 17.Ne5 Nxe5 18.Bxb7 Nd3 19.Bc3 Rxb7 20.Rxd3 Rd7 21.Rad1 
Rxd3 22.Rxd3 Qc8 23.Qg4 f6 24.h4 Be7 25.h5 Rd8 26.h6 g5 27.Rxd8+ Bxd8 28.
Qa4 Kf7 29.Qxa7+ Bc7 30.Bd4 Kg6 31.Bxb6 Bxg3 32.Qg7+ Kh5 33.Qxf6 Bh4 34.
Bd4 e5 35.Bxe5 Qg4+ 36.Kh2 Qe2 37.Qf7+ Kg4 38.Kg2 1-0

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.15"]
[Round "1"]
[White "Portisch, Lajos"]
[Black "Darga, Klaus"]
[Result "1/2-1/2"]
[ECO "A33"]
[EventDate "1969.07.15"]
[PlyCount "61"]

1.c4 c5 2.Nf3 Nf6 3.Nc3 Nc6 4.d4 cxd4 5.Nxd4 e6 6.g3 Be7 7.Bg2 O-O 8.O-O 
d5 9.cxd5 Nxd5 10.Nxd5 exd5 11.Be3 Bf6 12.Rc1 Bxd4 13.Bxd4 Bg4 14.Bc5 Re8 
15.Re1 d4 16.b4 a6 17.a4 Qg5 18.Rc2 Bf5 19.Rd2 Be4 20.f3 Qe3+ 21.Kh1 Bd5 
22.Rd3 Qe6 23.b5 axb5 24.axb5 Ne5 25.Rxd4 Bb3 26.Qb1 Ra5 27.f4 Rxb5 28.Ba7
Qa6 29.fxe5 Qxa7 30.Rd7 Qa5 31.Rxb7 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.15"]
[Round "1"]
[White "Tatai, Stefano"]
[Black "Stein, Leonid"]
[Result "1/2-1/2"]
[ECO "B61"]
[EventDate "1969.07.15"]
[PlyCount "61"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 Bd7 7.Qd2 Nxd4 8.
Qxd4 Qa5 9.Bd2 e5 10.Nd5 Qxd5 11.Qxd5 Nxd5 12.exd5 Be7 13.c4 f5 14.Be2 Bf6
15.Bc3 Ke7 16.O-O Rhe8 17.Rfe1 e4 18.Bxf6+ Kxf6 19.f4 exf3 20.Bxf3 Rxe1+ 
21.Rxe1 a5 22.Kf2 Rc8 23.b3 a4 24.Rb1 axb3 25.Rxb3 Rxc4 26.Rxb7 Be8 27.Rb6
Ke5 28.Rb7 Rc2+ 29.Kf1 Kf6 30.Rb6 Ke7 31.Rb7+ 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.16"]
[Round "2"]
[White "Byrne, Robert"]
[Black "Barendregt, Johan"]
[Result "0-1"]
[ECO "A36"]
[EventDate "1969.07.15"]
[PlyCount "116"]

1.c4 g6 2.Nc3 Bg7 3.g3 c5 4.Bg2 Nc6 5.a3 e6 6.b4 Nxb4 7.axb4 cxb4 8.Nb5 
Bxa1 9.Qa4 Be5 10.Nf3 Bb8 11.Bb2 f6 12.Ng5 Kf8 13.Ne4 d5 14.cxd5 exd5 15.
Qxb4+ Kg7 16.Nec3 Ne7 17.Qb3 d4 18.Nxd4 Qb6 19.Qxb6 axb6 20.O-O Rd8 21.e3 
Nc6 22.Nd5 Be5 23.Nxc6 bxc6 24.Bxe5 fxe5 25.Nxb6 Rb8 26.Nxc8 Rbxc8 27.Rd1 
c5 28.Kf1 Rb8 29.Ke1 Rb2 30.Bf1 Kf6 31.f3 Rc2 32.h4 c4 33.Be2 Rd6 34.g4 h6
35.Bf1 g5 36.hxg5+ hxg5 37.Be2 Rd5 38.Bf1 Rd7 39.Be2 Rh7 40.Bf1 Rh1 41.Ra1
Rh2 42.Ra6+ Ke7 43.Ra1 c3 44.dxc3 Rxc3 45.Be2 Rxe3 46.Ra2 e4 47.fxe4 Rxe4 
48.Kf1 Kf6 49.Ra6+ Ke5 50.Bf3 Rb4 51.Kg1 Rd2 52.Ra1 Kf4 53.Bg2 Kxg4 54.Rc1
Kh4 55.Bf1 Rg4+ 56.Kh1 Rgd4 57.Rc8 g4 58.Rf8 Kg3 0-1

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.16"]
[Round "2"]
[White "Damjanovic, Mato"]
[Black "Hartoch, Robert"]
[Result "1/2-1/2"]
[ECO "B62"]
[EventDate "1969.07.15"]
[PlyCount "62"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Nb3 Be7 8.Be2 
a6 9.Qd2 b5 10.a3 h6 11.Be3 Bd7 12.f4 Rb8 13.O-O Qc7 14.Kh1 O-O 15.Rad1 
Rfd8 16.f5 Ne5 17.fxe6 Bxe6 18.Nd4 Kh7 19.Nd5 Bxd5 20.exd5 Nxd5 21.Bxh6 g6
22.Bg5 Bxg5 23.Qxg5 Qe7 24.Qg3 Nc7 25.Rf4 Ne6 26.Rh4+ Kg8 27.Qh3 Nxd4 28.
Rh8+ Kg7 29.Rh7+ Kf8 30.Rh8+ Kg7 31.Rh7+ Kf8 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.16"]
[Round "2"]
[White "Darga, Klaus"]
[Black "Ivkov, Borislav"]
[Result "1/2-1/2"]
[ECO "E54"]
[EventDate "1969.07.15"]
[PlyCount "53"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O dxc4 8.Bxc4 
Qe7 9.Qe2 Nc6 10.Bd2 cxd4 11.exd4 Rd8 12.Be3 h6 13.Rac1 a6 14.Rfd1 b5 15.
Bd3 Bb7 16.a4 bxa4 17.Nxa4 e5 18.dxe5 Nxe5 19.Nxe5 Qxe5 20.Bc5 Qg5 21.f3 
Nd5 22.Qe4 Bxc5+ 23.Rxc5 g6 24.Bf1 Ne3 25.Rxd8+ Rxd8 26.Rxg5 Bxe4 27.Re5 
1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.16"]
[Round "2"]
[White "Gheorghiu, Florin"]
[Black "Portisch, Lajos"]
[Result "0-1"]
[ECO "C33"]
[EventDate "1969.07.15"]
[PlyCount "72"]

1.e4 e5 2.f4 exf4 3.Bc4 Nf6 4.Qe2 d5 5.exd5+ Be7 6.Nf3 O-O 7.O-O c6 8.dxc6
Nxc6 9.c3 Bd6 10.d4 Bg4 11.Nbd2 Re8 12.Qf2 Bh5 13.h3 h6 14.Bb5 Bc7 15.Re1 
Qd5 16.Bd3 Bg6 17.Bxg6 fxg6 18.b3 g5 19.Bb2 g4 20.hxg4 Nxg4 21.Qf1 Ne3 22.
Qf2 g5 23.c4 Qf5 24.Nf1 g4 25.Ne5 Nxf1 26.Rxf1 Nxe5 27.dxe5 Qh5 28.Qxf4 
Bb6+ 29.Bd4 Rf8 30.Qe3 Bxd4 31.Qxd4 g3 32.Rf6 Rad8 33.Qf4 Qh2+ 34.Kf1 Rxf6
35.exf6 Qh1+ 36.Ke2 Qxg2+ 0-1

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.16"]
[Round "2"]
[White "Kavalek, Lubomir"]
[Black "Tatai, Stefano"]
[Result "1/2-1/2"]
[ECO "D78"]
[EventDate "1969.07.15"]
[PlyCount "32"]

1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.c4 c6 6.d4 d5 7.b3 Bf5 8.Bb2 a5 9.
Nc3 Ne4 10.Rc1 Nxc3 11.Bxc3 Be4 12.e3 a4 13.bxa4 dxc4 14.a5 c5 15.dxc5 
Bxc3 16.Rxc3 Nc6 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.16"]
[Round "2"]
[White "Ree, Hans"]
[Black "Liberzon, Vladimir"]
[Result "0-1"]
[ECO "B89"]
[EventDate "1969.07.15"]
[PlyCount "80"]

1.e4 c5 2.Nf3 d6 3.Nc3 Nc6 4.d4 cxd4 5.Nxd4 e6 6.Be3 Nf6 7.Bc4 a6 8.Bb3 
Na5 9.f4 Nxb3 10.axb3 Be7 11.Qf3 O-O 12.O-O Rb8 13.Rad1 Qc7 14.f5 b5 15.b4
e5 16.Nb3 Bb7 17.Na5 Ba8 18.Rf2 Rbc8 19.Nd5 Nxd5 20.exd5 Qd7 21.Qh5 f6 22.
Rf3 Qe8 23.Qh4 Rxc2 24.Rh3 h5 25.Rg3 Bd8 26.Bh6 Rf7 27.Qxh5 Qd7 28.Be3 
Rxb2 29.Rh3 Kf8 30.Qh8+ Ke7 31.Rg3 Qxf5 32.Rxg7 Bxd5 33.Rg8 Bxa5 34.bxa5 
Bc6 35.h3 Rxg2+ 36.Rxg2 Qf3 37.Rgd2 Qxe3+ 38.Kh2 Qf4+ 39.Kg1 Qg3+ 40.Kf1 
Rg7 0-1

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.16"]
[Round "2"]
[White "Stein, Leonid"]
[Black "Donner, Jan"]
[Result "1-0"]
[ECO "E62"]
[EventDate "1969.07.15"]
[PlyCount "77"]

1.c4 Nf6 2.Nc3 g6 3.g3 Bg7 4.Bg2 O-O 5.d4 d6 6.Nf3 Nc6 7.O-O e5 8.d5 Ne7 
9.e4 Ne8 10.b4 f5 11.exf5 Nxf5 12.Ng5 a6 13.Rb1 Nd4 14.Ne2 Bg4 15.f3 Nxe2+
16.Qxe2 Bf5 17.Rb3 h6 18.Ne6 Bxe6 19.dxe6 c6 20.f4 Nc7 21.fxe5 Rxf1+ 22.
Bxf1 Nxe6 23.Qd3 dxe5 24.Qxg6 Nf8 25.Qc2 Ne6 26.Bxh6 Qf6 27.Bxg7 Kxg7 28.
Qf2 Nd4 29.Re3 Qe7 30.Re4 Qf6 31.Qe3 Rd8 32.Bd3 Nf3+ 33.Kg2 Ne1+ 34.Qxe1 
Rxd3 35.Rxe5 Rd2+ 36.Qxd2 Qxe5 37.Kf3 Qf5+ 38.Ke3 Qb1 39.Kd4 1-0

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.16"]
[Round "2"]
[White "Vasiukov, Evgeny"]
[Black "Langeweg, Christian"]
[Result "1-0"]
[ECO "B45"]
[EventDate "1969.07.15"]
[PlyCount "75"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.g3 Nxd4 7.Qxd4 Ne7 8.Bg2 
Nc6 9.Qd2 Be7 10.O-O O-O 11.b3 a6 12.Bb2 b5 13.a4 Rb8 14.axb5 axb5 15.Nd1 
Bf6 16.Bxf6 Qxf6 17.Ne3 Rd8 18.Rfd1 Bb7 19.f4 Qe7 20.h4 Ra8 21.Kh2 Rxa1 
22.Rxa1 Qf6 23.Rd1 Qb2 24.Bf1 e5 25.fxe5 Nxe5 26.Bg2 Qa3 27.Qd4 Rd7 28.Kh1
Qc5 29.Bh3 Qxd4 30.Rxd4 Rd8 31.Nf5 f6 32.Bg2 Nf7 33.Rb4 Ba6 34.Bf1 g6 35.
Nd4 Re8 36.Bxb5 Bxb5 37.Nxb5 Ne5 38.Nxd6 1-0

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.17"]
[Round "3"]
[White "Barendregt, Johan"]
[Black "Darga, Klaus"]
[Result "0-1"]
[ECO "B40"]
[EventDate "1969.07.15"]
[PlyCount "52"]

1.e4 c5 2.Nf3 e6 3.b4 cxb4 4.d4 Nf6 5.Bd3 d5 6.e5 Ne4 7.Qe2 Bd7 8.O-O Bc6 
9.a3 Na6 10.Rd1 Be7 11.Bxa6 bxa6 12.axb4 Bb5 13.Qe1 Rc8 14.c3 O-O 15.Bb2 
f6 16.Nfd2 Nxd2 17.Nxd2 fxe5 18.Qxe5 Rf6 19.Qe3 Bd6 20.g3 Qe8 21.f4 Qg6 
22.Kh1 Bd3 23.Nf3 Be4 24.Rd2 Qg4 25.Rf2 Bxf4 26.gxf4 Rxf4 0-1

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.17"]
[Round "3"]
[White "Donner, Jan"]
[Black "Kavalek, Lubomir"]
[Result "0-1"]
[ECO "E92"]
[EventDate "1969.07.15"]
[PlyCount "80"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Nf3 e5 7.Be3 Qe7 8.d5 a5 9.
Nd2 h5 10.f3 Nh7 11.a3 f5 12.b4 Nd7 13.O-O f4 14.Bf2 g5 15.Rc1 Ndf6 16.c5 
axb4 17.axb4 g4 18.cxd6 cxd6 19.Bh4 Bh6 20.Nc4 Bg5 21.Bxg5 Nxg5 22.Nb6 
gxf3 23.Bxf3 Nxf3+ 24.Qxf3 Bg4 25.Qd3 Ra6 26.Nc4 h4 27.h3 Bh5 28.Nd2 Kh8 
29.Nf3 Ne8 30.Ra1 Rxa1 31.Rxa1 Qd8 32.Kh1 Rg8 33.Ne2 Nf6 34.Nxh4 Nxe4 35.
Qxe4 Qxh4 36.Rf1 Bg6 37.Qf3 Qh7 38.Qc3 Be4 39.Rf2 Qg7 40.Kh2 Bxg2 0-1

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.17"]
[Round "3"]
[White "Hartoch, Robert"]
[Black "Byrne, Robert"]
[Result "1/2-1/2"]
[ECO "E66"]
[EventDate "1969.07.15"]
[PlyCount "43"]

1.c4 g6 2.g3 Bg7 3.Bg2 Nf6 4.Nc3 O-O 5.d4 d6 6.Nf3 c5 7.O-O Nc6 8.d5 Na5 
9.Nd2 a6 10.Qc2 Rb8 11.b3 b5 12.Bb2 e5 13.Rab1 Bd7 14.e3 Ng4 15.Nd1 f5 16.
f3 Nf6 17.f4 e4 18.Nf2 h5 19.h4 Qe7 20.Rfe1 Rb6 21.Bc3 Nb7 22.Bf1 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.17"]
[Round "3"]
[White "Ivkov, Borislav"]
[Black "Gheorghiu, Florin"]
[Result "1-0"]
[ECO "A52"]
[EventDate "1969.07.15"]
[PlyCount "47"]

1.d4 Nf6 2.c4 e5 3.dxe5 Ng4 4.Nf3 Bc5 5.e3 Nc6 6.a3 a5 7.b3 O-O 8.Bb2 Re8 
9.Be2 Ncxe5 10.Nxe5 Nxe5 11.O-O Ra6 12.Qd5 Qe7 13.Nc3 Rh6 14.Ne4 Bd6 15.
Nxd6 Qxd6 16.Rfd1 Qxd5 17.cxd5 Rb6 18.Rac1 d6 19.Rxc7 Nd7 20.Bc4 Nc5 21.
Bd4 Bg4 22.f3 Rc8 23.Bxc5 dxc5 24.d6 1-0

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.17"]
[Round "3"]
[White "Langeweg, Christian"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[ECO "A32"]
[EventDate "1969.07.15"]
[PlyCount "16"]

1.d4 Nf6 2.Nf3 c5 3.c4 cxd4 4.Nxd4 e6 5.Nc3 Bb4 6.Bd2 Nc6 7.e3 O-O 8.Be2 
d5 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.17"]
[Round "3"]
[White "Liberzon, Vladimir"]
[Black "Stein, Leonid"]
[Result "1/2-1/2"]
[ECO "B61"]
[EventDate "1969.07.15"]
[PlyCount "45"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 Bd7 7.Qd2 Rc8 8.
O-O-O Nxd4 9.Qxd4 Qa5 10.f4 h6 11.Bxf6 gxf6 12.Kb1 Qc5 13.Qd2 f5 14.exf5 
Bxf5 15.Bb5+ Kd8 16.Bd3 Bxd3 17.Qxd3 Bg7 18.Nd5 e6 19.Ne3 Rc6 20.c3 Kc7 
21.Rhe1 Kb8 22.Rc1 h5 23.f5 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.17"]
[Round "3"]
[White "Portisch, Lajos"]
[Black "Vasiukov, Evgeny"]
[Result "1/2-1/2"]
[ECO "B09"]
[EventDate "1969.07.15"]
[PlyCount "80"]

1.d4 d6 2.e4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.Bd3 Nc6 7.O-O Bg4 8.e5 dxe5
9.dxe5 Nd5 10.Nxd5 Qxd5 11.h3 Bf5 12.Bxf5 Qxd1 13.Rxd1 gxf5 14.Be3 Rfd8 
15.Kf2 e6 16.g4 fxg4 17.hxg4 f6 18.exf6 Bxf6 19.c3 Rxd1 20.Rxd1 Rd8 21.Rh1
Re8 22.Rh5 Bg7 23.Ng5 h6 24.Ne4 b6 25.Ng3 Kf7 26.Rh1 Rd8 27.Ke2 Ne7 28.Ne4
Kg6 29.Bd2 Nc8 30.Nf2 Nd6 31.Nd3 a5 32.a4 Nf7 33.Rh3 Nd6 34.Be1 Rg8 35.Re3
Kf7 36.b3 Nb7 37.Rh3 Rd8 38.Bd2 Rg8 39.Rh5 Bf6 40.Kf3 Rd8 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.17"]
[Round "3"]
[White "Tatai, Stefano"]
[Black "Damjanovic, Mato"]
[Result "1-0"]
[ECO "B44"]
[EventDate "1969.07.15"]
[PlyCount "78"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e6 5.Nb5 d6 6.c4 Nf6 7.N1c3 a6 8.Na3 
Be7 9.Be2 O-O 10.O-O b6 11.Be3 Bb7 12.Qd2 Ne5 13.f3 d5 14.exd5 exd5 15.
cxd5 b5 16.Rfd1 Re8 17.d6 Bf8 18.Nc2 Re6 19.Bc5 Nfd7 20.Ba3 Rg6 21.Qe3 Rc8
22.Kh1 Qf6 23.Nd4 Rh6 24.Ne4 Qh4 25.h3 g6 26.Rac1 Re8 27.Rc7 Ng4 28.Qg5 
Nf2+ 29.Kg1 Nxh3+ 30.gxh3 Qxh3 31.Qg2 Qh4 32.Rxb7 Bg7 33.Rxd7 Rxe4 34.fxe4
Bxd4+ 35.Kf1 Qf4+ 36.Bf3 Bb6 37.Rb7 Rh2 38.Rxb6 Rxg2 39.Kxg2 Qg5+ 1-0

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.18"]
[Round "4"]
[White "Byrne, Robert"]
[Black "Tatai, Stefano"]
[Result "1/2-1/2"]
[ECO "B05"]
[EventDate "1969.07.15"]
[PlyCount "36"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Bg4 5.Be2 e6 6.O-O Be7 7.c4 Nb6 8.exd6 
cxd6 9.b3 O-O 10.Bb2 Nc6 11.Na3 d5 12.c5 Nd7 13.Nc2 b6 14.b4 bxc5 15.dxc5 
Bxf3 16.Bxf3 Rb8 17.Bc3 Nde5 18.Rb1 Bf6 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.18"]
[Round "4"]
[White "Damjanovic, Mato"]
[Black "Donner, Jan"]
[Result "1/2-1/2"]
[ECO "B08"]
[EventDate "1969.07.15"]
[PlyCount "38"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.Be2 O-O 6.O-O c6 7.a4 Nbd7 8.e5 dxe5
9.dxe5 Ne8 10.Bf4 Nc7 11.Qc1 Ne6 12.Bh6 Qa5 13.Bxg7 Kxg7 14.Qe3 Qb4 15.
Rfb1 a5 16.Ne4 Ndc5 17.Ng3 Qf4 18.Qa3 Qb4 19.Qe3 Qf4 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.18"]
[Round "4"]
[White "Darga, Klaus"]
[Black "Hartoch, Robert"]
[Result "1/2-1/2"]
[ECO "D37"]
[EventDate "1969.07.15"]
[PlyCount "45"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.g3 O-O 6.Bg2 Nbd7 7.cxd5 exd5 8.O-O 
c6 9.Bf4 Re8 10.a3 a5 11.Qc2 Nb6 12.Rad1 g6 13.Ne5 Bf5 14.Qc1 Nfd7 15.h3 
g5 16.e4 dxe4 17.Be3 f6 18.g4 Be6 19.Nxd7 Qxd7 20.Nxe4 Nd5 21.Ng3 Rf8 22.
Be4 Rae8 23.Nf5 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.18"]
[Round "4"]
[White "Gheorghiu, Florin"]
[Black "Barendregt, Johan"]
[Result "1/2-1/2"]
[ECO "A42"]
[EventDate "1969.07.15"]
[PlyCount "40"]

1.c4 g6 2.Nc3 Bg7 3.d4 d6 4.e4 c5 5.d5 Bxc3+ 6.bxc3 e5 7.h4 h5 8.Bg5 f6 9.
Bd2 Nh6 10.Qc1 Nf7 11.Bd3 Qe7 12.Nf3 Nd7 13.Qc2 Nf8 14.Be3 Nh6 15.Nh2 Ng4 
16.Nxg4 Bxg4 17.a4 O-O-O 18.a5 Kb8 19.Rb1 Bc8 20.f3 Nh7 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.18"]
[Round "4"]
[White "Kavalek, Lubomir"]
[Black "Liberzon, Vladimir"]
[Result "1/2-1/2"]
[ECO "B81"]
[EventDate "1969.07.15"]
[PlyCount "46"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 h6 7.h3 Nc6 8.Bg2 Bd7 
9.Be3 a6 10.O-O Qc7 11.Qe2 Be7 12.f4 Nxd4 13.Bxd4 e5 14.Be3 exf4 15.Rxf4 
Be6 16.Nd5 Bxd5 17.exd5 O-O 18.Bd4 Nh7 19.Raf1 Bg5 20.Re4 Bf6 21.c3 Bxd4+ 
22.Rxd4 Rae8 23.Qf2 Re5 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.18"]
[Round "4"]
[White "Portisch, Lajos"]
[Black "Ivkov, Borislav"]
[Result "1-0"]
[ECO "A07"]
[EventDate "1969.07.15"]
[PlyCount "41"]

1.Nf3 d5 2.g3 c6 3.Bg2 Bg4 4.d3 e6 5.Nbd2 Bd6 6.O-O Nd7 7.e4 Ne7 8.b3 O-O 
9.h3 Bh5 10.Bb2 Rc8 11.Qe1 c5 12.Nh4 Qb6 13.Qe3 Rfe8 14.Qg5 Bg6 15.exd5 
Nxd5 16.Nxg6 hxg6 17.Bxd5 exd5 18.Qxd5 Qc7 19.Nc4 Re6 20.Rae1 Rce8 21.Nxd6
1-0

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.18"]
[Round "4"]
[White "Stein, Leonid"]
[Black "Langeweg, Christian"]
[Result "1-0"]
[ECO "E13"]
[EventDate "1969.07.15"]
[PlyCount "84"]

1.Nf3 Nf6 2.c4 e6 3.d4 b6 4.Bg5 Bb7 5.e3 Bb4+ 6.Nc3 h6 7.Bh4 g5 8.Bg3 Ne4 
9.Nd2 Nxc3 10.bxc3 Bxc3 11.Rc1 Bb4 12.h4 gxh4 13.Bxh4 Be7 14.Bg3 d6 15.Be2
Bxg2 16.Rh2 Bb7 17.Bf3 Bxf3 18.Qxf3 Nd7 19.Ke2 Rb8 20.Rch1 Bf8 21.Qc6 Qc8 
22.Ne4 Bg7 23.Bxd6 Qb7 24.Qxb7 Rxb7 25.Bf4 Ke7 26.Rg2 Bf8 27.Rgh2 Rg8 28.
Bxh6 Bxh6 29.Rxh6 c6 30.Kd3 Rbb8 31.a4 Rg2 32.Ke2 Rbg8 33.R1h3 Rg1 34.Rf3 
Ra1 35.Rh7 Rf8 36.Nc3 Nf6 37.Rh6 Ne8 38.d5 Ra3 39.e4 Rb3 40.dxe6 Rb2+ 41.
Kf1 f6 42.e5 Rc2 1-0

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.18"]
[Round "4"]
[White "Vasiukov, Evgeny"]
[Black "Ree, Hans"]
[Result "1-0"]
[ECO "B50"]
[EventDate "1969.07.15"]
[PlyCount "43"]

1.e4 c5 2.Nf3 d6 3.Nc3 Nf6 4.e5 dxe5 5.Nxe5 Nbd7 6.d4 Nxe5 7.dxe5 Qxd1+ 8.
Kxd1 Ng4 9.Bb5+ Kd8 10.Ke2 Bf5 11.Rd1+ Kc8 12.Bf4 g5 13.Bxg5 a6 14.Bd3 
Bxd3+ 15.Rxd3 Nxe5 16.Rd5 Nc6 17.Rxc5 e5 18.Rd5 Rg8 19.Be3 Kc7 20.Rad1 Rd8
21.Rxd8 Nxd8 22.Nd5+ 1-0

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.19"]
[Round "5"]
[White "Barendregt, Johan"]
[Black "Portisch, Lajos"]
[Result "0-1"]
[ECO "B40"]
[EventDate "1969.07.15"]
[PlyCount "58"]

1.e4 c5 2.Nf3 e6 3.b4 cxb4 4.d4 Nf6 5.Bd3 d5 6.e5 Nfd7 7.Ng5 Be7 8.Qg4 h5 
9.Qg3 Nf8 10.Nh3 g6 11.Be3 b6 12.Nd2 Ba6 13.Nf3 Nh7 14.Nfg5 Nxg5 15.Nxg5 
Bxd3 16.cxd3 Nc6 17.h4 Qd7 18.Rc1 Rc8 19.O-O Nd8 20.Qf3 Rxc1 21.Rxc1 a5 
22.Rc2 Qb7 23.Qd1 Nc6 24.Qc1 Bxg5 25.Bxg5 Nxd4 26.Rc7 Ne2+ 27.Kf1 Nxc1 28.
Rxb7 Nxa2 29.Rb8+ Kd7 0-1

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.19"]
[Round "5"]
[White "Donner, Jan"]
[Black "Byrne, Robert"]
[Result "0-1"]
[ECO "E92"]
[EventDate "1969.07.15"]
[PlyCount "86"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Nf3 e5 7.Be3 Ng4 8.Bg5 f6 
9.Bh4 g5 10.Bg3 Nh6 11.O-O Nc6 12.dxe5 fxe5 13.Nd5 g4 14.Bh4 gxf3 15.Bxd8 
fxe2 16.Qxe2 Rxd8 17.Nxc7 Bg4 18.f3 Rac8 19.fxg4 Nd4 20.Qd3 Rxc7 21.g5 Nf7
22.h4 Rdc8 23.b3 Nd8 24.Rf2 N8e6 25.Qh3 h6 26.g6 h5 27.Qd3 Bh6 28.Raf1 Nc5
29.Qh3 Nxe4 30.Rf7 Bf4 31.R1xf4 exf4 32.Kh2 Nf2 33.Qc3 Ng4+ 34.Kh1 Ne6 35.
Rf5 Rc5 36.Rxc5 Rxc5 37.Qf3 Kg7 38.g3 Kxg6 39.Qe4+ Kf6 40.Qxb7 Re5 41.gxf4
Nxf4 42.Qb4 Kf5 43.Kg1 Nd3 0-1

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.19"]
[Round "5"]
[White "Hartoch, Robert"]
[Black "Gheorghiu, Florin"]
[Result "1/2-1/2"]
[ECO "A25"]
[EventDate "1969.07.15"]
[PlyCount "46"]

1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Rb1 d6 6.b4 Bf5 7.d3 Qd7 8.e3 Nge7 
9.h3 O-O 10.Nge2 h6 11.Nd5 Nd8 12.Nxe7+ Qxe7 13.O-O Qd7 14.Kh2 Be6 15.Nc3 
f5 16.Qb3 Qf7 17.Rd1 e4 18.Bf1 exd3 19.Bxd3 Nc6 20.f4 a5 21.a3 a4 22.Nxa4 
b5 23.Nb2 Rfb8 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.19"]
[Round "5"]
[White "Ivkov, Borislav"]
[Black "Vasiukov, Evgeny"]
[Result "1/2-1/2"]
[ECO "A64"]
[EventDate "1969.07.15"]
[PlyCount "31"]

1.d4 Nf6 2.c4 g6 3.g3 c5 4.d5 Bg7 5.Bg2 O-O 6.Nf3 e6 7.Nc3 exd5 8.cxd5 d6 
9.O-O a6 10.a4 Re8 11.Nd2 Nbd7 12.h3 Rb8 13.Nc4 Ne5 14.Na3 Ned7 15.Nc4 Ne5
16.Na3 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.19"]
[Round "5"]
[White "Langeweg, Christian"]
[Black "Kavalek, Lubomir"]
[Result "1/2-1/2"]
[ECO "B93"]
[EventDate "1969.07.15"]
[PlyCount "49"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 e5 7.Nf3 Qc7 8.a4 b6 
9.Bd3 Bb7 10.O-O Nbd7 11.Kh1 g6 12.Qe2 Bg7 13.fxe5 dxe5 14.Bc4 O-O 15.Bg5 
h6 16.Bxf6 Nxf6 17.Rad1 Kh7 18.Nd5 Nxd5 19.Bxd5 Bxd5 20.Rxd5 Rac8 21.Rf2 
Rcd8 22.c4 Rxd5 23.cxd5 f5 24.g3 Qc5 25.Nh4 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.19"]
[Round "5"]
[White "Liberzon, Vladimir"]
[Black "Damjanovic, Mato"]
[Result "1/2-1/2"]
[ECO "B36"]
[EventDate "1969.07.15"]
[PlyCount "36"]

1.c4 c5 2.Nf3 Nf6 3.Nc3 g6 4.d4 cxd4 5.Nxd4 Nc6 6.e4 d6 7.Be2 Nxd4 8.Qxd4 
Bg7 9.O-O O-O 10.Qe3 Bd7 11.Bd2 Bc6 12.Rac1 a6 13.a3 a5 14.b3 Nd7 15.b4 
axb4 16.axb4 b6 17.Ra1 e6 18.f3 Re8 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.19"]
[Round "5"]
[White "Ree, Hans"]
[Black "Stein, Leonid"]
[Result "1-0"]
[ECO "E80"]
[EventDate "1969.07.15"]
[PlyCount "80"]

1.c4 g6 2.Nc3 Bg7 3.d4 Nf6 4.e4 d6 5.f3 b6 6.Bd3 e5 7.d5 Nh5 8.Nge2 O-O 9.
Be3 Nd7 10.Qd2 a5 11.Bc2 Nc5 12.g4 Nf4 13.Nxf4 exf4 14.Bxf4 Ba6 15.h4 Bxc4
16.Bh6 Bxh6 17.Qxh6 b5 18.h5 Qe7 19.Qe3 b4 20.Nd1 c6 21.dxc6 Rac8 22.Qd4 
Bb5 23.Ne3 Bxc6 24.Rd1 Ne6 25.Qd2 Qf6 26.hxg6 hxg6 27.Kf2 Rfd8 28.Nf5 gxf5
29.gxf5 Bd7 30.Rdg1+ Ng7 31.Bb3 a4 32.Bd5 b3 33.axb3 axb3 34.Bxb3 Kf8 35.
Rh8+ Ke7 36.Rh6 Ne8 37.Rxf6 Nxf6 38.Rg7 Be8 39.Qd4 Rc5 40.f4 Nh5 1-0

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.19"]
[Round "5"]
[White "Tatai, Stefano"]
[Black "Darga, Klaus"]
[Result "1/2-1/2"]
[ECO "B43"]
[EventDate "1969.07.15"]
[PlyCount "83"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.Be2 Nf6 7.O-O Bb4 8.Qd3 
Nc6 9.Bd2 Nxd4 10.Qxd4 Bc5 11.Qd3 b5 12.Rae1 Rb8 13.Bd1 b4 14.Na4 Bd6 15.
f4 e5 16.Qg3 O-O 17.f5 Re8 18.Bg5 Be7 19.b3 Bb7 20.c4 bxc3 21.Nxc3 Rbc8 
22.Bxf6 Bxf6 23.Nd5 Bxd5 24.exd5 Qc5+ 25.Kh1 Qxd5 26.Be2 Qa8 27.Qd3 d5 28.
Qxa6 e4 29.Qxa8 Rxa8 30.Bb5 Bc3 31.Bxe8 Rxe8 32.Re2 d4 33.Rd1 g6 34.f6 Kf8
35.Rc2 e3 36.Re2 Re6 37.g3 Rxf6 38.Kg2 h5 39.Rd3 g5 40.Rexe3 dxe3 41.Rxc3 
Rf2+ 42.Kg1 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.21"]
[Round "6"]
[White "Byrne, Robert"]
[Black "Liberzon, Vladimir"]
[Result "1/2-1/2"]
[ECO "B47"]
[EventDate "1969.07.15"]
[PlyCount "45"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Qc7 5.Nc3 e6 6.g3 a6 7.Bg2 Nf6 8.O-O 
Be7 9.Be3 d6 10.Qe2 Bd7 11.Rad1 Rc8 12.f4 b5 13.a3 O-O 14.Kh1 Nxd4 15.Bxd4
e5 16.Be3 Be6 17.Rfe1 Bc4 18.Qd2 a5 19.Rc1 b4 20.axb4 axb4 21.Nd5 Nxd5 22.
exd5 exf4 23.Bxf4 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.21"]
[Round "6"]
[White "Damjanovic, Mato"]
[Black "Langeweg, Christian"]
[Result "1-0"]
[ECO "B89"]
[EventDate "1969.07.15"]
[PlyCount "49"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be3 Nf6 7.Bc4 Be7 8.Qe2 
O-O 9.O-O-O Qc7 10.Bb3 a6 11.Rhg1 b5 12.g4 b4 13.Nxc6 Qxc6 14.Nd5 exd5 15.
g5 dxe4 16.gxf6 Bxf6 17.Bd5 Qa4 18.Bxa8 Be6 19.Bd4 Bxd4 20.Rxd4 Qxa2 21.
Rg3 Rxa8 22.Rxb4 Qa1+ 23.Kd2 d5 24.Qe3 Qa5 25.Qc3 1-0

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.21"]
[Round "6"]
[White "Darga, Klaus"]
[Black "Donner, Jan"]
[Result "1/2-1/2"]
[ECO "C43"]
[EventDate "1969.07.15"]
[PlyCount "46"]

1.e4 e5 2.Nf3 Nf6 3.d4 exd4 4.e5 Ne4 5.Qxd4 d5 6.exd6 Nxd6 7.Bd3 Nc6 8.Qf4
g6 9.O-O Bg7 10.Nc3 O-O 11.Be3 Be6 12.a4 a5 13.Bc5 Qf6 14.Qxf6 Bxf6 15.Nb5
Rfc8 16.Bxd6 cxd6 17.Nxd6 Rc7 18.Be4 Rd8 19.Nb5 Rcd7 20.c3 Ne5 21.Nfd4 Bc4
22.Rfe1 Nd3 23.Bxd3 Bxd3 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.21"]
[Round "6"]
[White "Gheorghiu, Florin"]
[Black "Tatai, Stefano"]
[Result "1-0"]
[ECO "A17"]
[EventDate "1969.07.15"]
[PlyCount "80"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 Bb4 4.Qc2 O-O 5.a3 Bxc3 6.Qxc3 b6 7.e3 Bb7 8.b4 a5
9.Bb2 Qe7 10.Be2 axb4 11.axb4 Rxa1+ 12.Bxa1 Na6 13.b5 Nc5 14.O-O Ra8 15.
Qc2 Ra3 16.Bc3 Na4 17.Bd4 Ne4 18.Rb1 Ng5 19.Nxg5 Qxg5 20.Bf1 e5 21.Ra1 
Rxa1 22.Bxa1 Nc5 23.Qa2 e4 24.Bd4 Ne6 25.Qa7 Bc8 26.Qa8 Qd8 27.Qxe4 d6 28.
Bd3 g6 29.Bc3 Nc5 30.Qd4 f6 31.Bc2 Kg7 32.h4 Qe7 33.h5 gxh5 34.Qh4 Qf7 35.
Qg5+ Kf8 36.Bxf6 Ne6 37.Qh6+ Ke8 38.Bxh7 Nf8 39.Bd3 Be6 40.Bg7 Ke7 1-0

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.21"]
[Round "6"]
[White "Ivkov, Borislav"]
[Black "Barendregt, Johan"]
[Result "1/2-1/2"]
[ECO "A41"]
[EventDate "1969.07.15"]
[PlyCount "84"]

1.d4 d6 2.Nf3 Bg4 3.c4 g6 4.Nc3 Bg7 5.e3 e5 6.d5 Nd7 7.e4 Ne7 8.Be2 Bxf3 
9.Bxf3 O-O 10.h4 h6 11.h5 g5 12.Be3 f5 13.exf5 Nxf5 14.Be4 Nxe3 15.fxe3 a5
16.Qe2 Nc5 17.O-O-O Qe7 18.Rhf1 Rxf1 19.Rxf1 Rf8 20.Rf3 Rxf3 21.Qxf3 Qf6 
22.Qe2 Qf7 23.Kd2 Qd7 24.Qf3 g4 25.Qf5 Qxf5 26.Bxf5 e4 27.Bxg4 Kf7 28.Bf5 
Bxc3+ 29.Kxc3 Kf6 30.Bc8 Ke5 31.g4 Na4+ 32.Kb3 Nc5+ 33.Kc2 Kf6 34.Kc3 Na4+
35.Kd4 Nxb2 36.Bxb7 Nd3 37.Bc8 Nf2 38.Bf5 Kg5 39.c5 Nxg4 40.cxd6 cxd6 41.
Bxe4 Kxh5 42.Bf3 Kg5 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.21"]
[Round "6"]
[White "Kavalek, Lubomir"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[ECO "C96"]
[EventDate "1969.07.15"]
[PlyCount "56"]

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 Nd7 12.Nbd2 cxd4 13.cxd4 Nc6 14.Nb3 a5 15.Bd3 Ba6
16.Be3 a4 17.Nc1 exd4 18.Nxd4 Nxd4 19.Bxd4 Ne5 20.Bf1 Nc6 21.Be3 Bf6 22.
Rb1 Re8 23.Be2 Rc8 24.Bg4 Rb8 25.Nd3 Bb7 26.Bf3 Nd4 27.Bxd4 Bxd4 28.Nb4 
Qb6 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.21"]
[Round "6"]
[White "Portisch, Lajos"]
[Black "Hartoch, Robert"]
[Result "1-0"]
[ECO "D37"]
[EventDate "1969.07.15"]
[PlyCount "177"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bf4 O-O 6.e3 Nbd7 7.a3 c6 8.h3 a6 9.
c5 b6 10.b4 a5 11.Bd3 Ba6 12.b5 Bb7 13.cxb6 Qxb6 14.O-O c5 15.Na4 Qa7 16.
dxc5 Bxc5 17.Nxc5 Nxc5 18.Be5 Rac8 19.Be2 Nfd7 20.Bd4 f6 21.Rc1 e5 22.Bb2 
a4 23.h4 Qb6 24.h5 Qe6 25.Nh4 f5 26.Nf3 Nb3 27.Rxc8 Rxc8 28.Nd2 Ndc5 29.
Nxb3 Nxb3 30.Bd3 d4 31.Re1 Qd5 32.e4 fxe4 33.Bxe4 Qxb5 34.Bxb7 Qxb7 35.
Rxe5 Qd7 36.Qd3 h6 37.Qe4 Qf7 38.Bxd4 Nxd4 39.Qxd4 Re8 40.Rd5 Re1+ 41.Kh2 
Qc7+ 42.g3 Qf7 43.Kg2 Qb7 44.f3 Re2+ 45.Kf1 Re8 46.Qxa4 Rf8 47.Qc4 Qf7 48.
f4 Kh8 49.Qd3 Re8 50.Kg2 Qb7 51.Qb5 Qa8 52.Kh2 Qc8 53.Rd2 Qa8 54.Rd5 Rf8 
55.Qd3 Re8 56.Rd7 Qa5 57.f5 Qc5 58.Rd8 Rxd8 59.Qxd8+ Kh7 60.Qd3 Kh8 61.Kh3
Kg8 62.Qb3+ Kh7 63.Qf7 Qc1 64.Qg6+ Kh8 65.Qe8+ Kh7 66.Qe4 Kh8 67.f6 gxf6 
68.Qe8+ Kg7 69.Qg6+ Kh8 70.Qxf6+ Kh7 71.Qf3 Kg7 72.a4 Qc5 73.Qe2 Kf7 74.
Qg4 Kf8 75.Qf4+ Kg7 76.Qg4+ Kh8 77.Qe2 Kg7 78.a5 Qc1 79.Kh2 Qc5 80.a6 Kf8 
81.Kh3 Kg7 82.Kh2 Kf8 83.Kg2 Kg7 84.Qa2 Qa7 85.Qb2+ Kg8 86.Qb3+ Kf8 87.
Qf3+ Ke8 88.Qc6+ Kf8 89.Qc8+ 1-0

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.21"]
[Round "6"]
[White "Vasiukov, Evgeny"]
[Black "Stein, Leonid"]
[Result "1/2-1/2"]
[ECO "B57"]
[EventDate "1969.07.15"]
[PlyCount "60"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 Bd7 7.Bb3 g6 8.Be3 
Na5 9.f3 Rc8 10.Qd3 Bg7 11.g4 a6 12.h4 b5 13.h5 b4 14.h6 bxc3 15.hxg7 Rg8 
16.bxc3 Rxg7 17.Bh6 Rg8 18.Bg5 h5 19.Bxf6 exf6 20.gxh5 gxh5 21.O-O-O Rg5 
22.Qxa6 Qc7 23.Qd3 Qxc3 24.Qxc3 Rxc3 25.Kd2 Rcc5 26.Ke3 Nc4+ 27.Bxc4 Rxc4 
28.Rh4 Ke7 29.Rdh1 Ra5 30.Kd3 Rc7 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.22"]
[Round "7"]
[White "Barendregt, Johan"]
[Black "Vasiukov, Evgeny"]
[Result "0-1"]
[ECO "B47"]
[EventDate "1969.07.15"]
[PlyCount "74"]

1.e4 c5 2.Nf3 e6 3.Nc3 Nc6 4.d4 cxd4 5.Nxd4 Qc7 6.g3 a6 7.Bg2 Nf6 8.O-O 
Be7 9.Nb3 d6 10.a4 b6 11.e5 dxe5 12.Nb5 axb5 13.axb5 Rxa1 14.Bxc6+ Bd7 15.
Bxd7+ Nxd7 16.Nxa1 O-O 17.Qf3 Rc8 18.Rd1 f5 19.Qb3 Kf7 20.c3 Qb7 21.Nc2 
Nc5 22.Qc4 Qf3 23.Qf1 Ke8 24.Nb4 Ne4 25.Rd3 Qxf2+ 26.Qxf2 Nxf2 27.Kxf2 
Bxb4 28.cxb4 Rxc1 29.Rd6 Ke7 30.Rxb6 Rc2+ 31.Ke3 Rxb2 32.Rb7+ Kf6 33.b6 
Rxb4 34.Rb8 Rb3+ 35.Kd2 e4 36.b7 Ke5 37.Ke2 Rb2+ 0-1

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.22"]
[Round "7"]
[White "Donner, Jan"]
[Black "Gheorghiu, Florin"]
[Result "0-1"]
[ECO "D82"]
[EventDate "1969.07.15"]
[PlyCount "64"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bf4 Bg7 5.e3 c5 6.Bxb8 Rxb8 7.Qa4+ Bd7 8.Qxa7 
cxd4 9.Qxd4 O-O 10.cxd5 Qa5 11.Qd2 b5 12.Bd3 b4 13.Nce2 Qxd5 14.Nf3 Rfd8 
15.O-O e5 16.e4 Nxe4 17.Bxe4 Qxe4 18.Ng3 Qf4 19.Rfd1 Qxd2 20.Rxd2 Bc6 21.
Re2 f5 22.Nxe5 Bb5 23.Ree1 f4 24.Nf1 Rd5 25.Nf3 Bxb2 26.Rab1 Bc3 27.Re7 
Rbd8 28.Rb7 Bc4 29.R1xb4 Bxb4 30.Rxb4 Be2 31.h4 Rd1 32.Nh2 Ra1 0-1

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.22"]
[Round "7"]
[White "Hartoch, Robert"]
[Black "Ivkov, Borislav"]
[Result "0-1"]
[ECO "A14"]
[EventDate "1969.07.15"]
[PlyCount "115"]

1.c4 e6 2.Nf3 d5 3.b3 c5 4.Bb2 Nc6 5.g3 Nf6 6.Bg2 Be7 7.O-O O-O 8.e3 b6 9.
Qe2 Bb7 10.d3 Re8 11.Nc3 Bf8 12.Rfd1 d4 13.exd4 cxd4 14.Ne4 Nxe4 15.dxe4 
e5 16.Ne1 a5 17.a3 Qb8 18.Rac1 Ba6 19.Bf1 Nd8 20.Qd2 Ne6 21.b4 Be7 22.Rb1 
axb4 23.axb4 Qc7 24.b5 Bb7 25.f3 Bg5 26.Qc2 Nc5 27.Nd3 Be3+ 28.Kh1 f5 29.
Nxc5 Qxc5 30.Bd3 fxe4 31.fxe4 Bc8 32.Ra1 Be6 33.Ra6 Bg4 34.Be2 Bxe2 35.
Qxe2 Rac8 36.Ra4 Qc7 37.Bc1 Bxc1 38.Rxc1 Rf8 39.Kg2 Qd7 40.Qd3 Rf7 41.Rf1 
Rxf1 42.Kxf1 Qh3+ 43.Kg1 h5 44.Ra1 h4 45.Rc1 Qg4 46.c5 bxc5 47.b6 Kh7 48.
b7 Rb8 49.Rxc5 Rxb7 50.Rxe5 hxg3 51.hxg3 Rc7 52.Rf5 Rc3 53.Qxd4 Qxg3+ 54.
Kf1 Rc1+ 55.Ke2 Qg2+ 56.Ke3 Re1+ 57.Kf4 Qh2+ 58.Kf3 0-1

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.22"]
[Round "7"]
[White "Langeweg, Christian"]
[Black "Byrne, Robert"]
[Result "0-1"]
[ECO "A49"]
[EventDate "1969.07.15"]
[PlyCount "58"]

1.d4 Nf6 2.Nf3 g6 3.b3 Bg7 4.Bb2 O-O 5.g3 d6 6.Bg2 c6 7.O-O a5 8.a4 Na6 9.
Nbd2 Bd7 10.e4 Rb8 11.e5 dxe5 12.Nxe5 Bf5 13.Ndc4 Nd5 14.Qd2 Nab4 15.c3 
Na6 16.f4 f6 17.Nf3 b6 18.Nh4 Bc8 19.Rae1 Rf7 20.Qd3 e6 21.Nf3 Bf8 22.h4 
b5 23.axb5 cxb5 24.Ncd2 Nac7 25.h5 gxh5 26.Nh4 f5 27.Ndf3 Rg7 28.Ne5 Bb7 
29.Ra1 Be7 0-1

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.22"]
[Round "7"]
[White "Liberzon, Vladimir"]
[Black "Darga, Klaus"]
[Result "1-0"]
[ECO "C93"]
[EventDate "1969.07.15"]
[PlyCount "125"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O b5 6.Bb3 Be7 7.d4 d6 8.c3 O-O 
9.h3 h6 10.Nbd2 Re8 11.Re1 Bf8 12.Nf1 Bd7 13.Ng3 Na5 14.Bc2 Nc4 15.b3 Nb6 
16.Nh2 c5 17.f4 cxd4 18.cxd4 Rc8 19.Nf3 exd4 20.Bb2 Bc6 21.Nxd4 Bb7 22.Qd2
Nbd7 23.Rad1 Qb6 24.Kh2 Nc5 25.e5 dxe5 26.fxe5 Nh7 27.Ndf5 Rcd8 28.Nd6 Nf6
29.b4 Bxd6 30.exd6 Nce4 31.Bxe4 Nxe4 32.Nxe4 Rxe4 33.Qc3 f6 34.Rxe4 Bxe4 
35.Qb3+ Kh7 36.Qe6 Qe3 37.Qg4 Bd3 38.Qd4 Qxd4 39.Bxd4 Bc2 40.Bb6 Bxd1 41.
Bxd8 Bc2 42.Bxf6 Bf5 43.Be7 g5 44.Kg3 Kg6 45.Kf3 Kf7 46.Ke3 Be6 47.a3 Bd5 
48.g3 Bg2 49.h4 gxh4 50.gxh4 Ke6 51.Kd4 h5 52.Kc5 Kd7 53.Kb6 Bf1 54.Bf8 
Be2 55.Kxa6 Kc6 56.Ka5 Bg4 57.a4 bxa4 58.b5+ Kb7 59.Kxa4 Kb6 60.Bh6 Kc5 
61.Bf4 Bd7 62.Ka5 Bc8 63.Bg3 1-0

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.22"]
[Round "7"]
[White "Ree, Hans"]
[Black "Damjanovic, Mato"]
[Result "1/2-1/2"]
[ECO "A34"]
[EventDate "1969.07.15"]
[PlyCount "81"]

1.c4 c5 2.g3 g6 3.Bg2 Bg7 4.Nc3 Nf6 5.a3 Nc6 6.Rb1 a5 7.Nf3 O-O 8.O-O d6 
9.d3 Rb8 10.Ne1 Bd7 11.Nc2 Ne8 12.Bd2 Nc7 13.b4 axb4 14.axb4 b6 15.b5 Nd4 
16.Nxd4 Bxd4 17.Ra1 d5 18.Ra7 dxc4 19.dxc4 Be6 20.Qb3 Ne8 21.Bh6 Nd6 22.
Nd5 Bxd5 23.Bxd5 Nc8 24.Ra2 Bg7 25.Bf4 Nd6 26.h4 h6 27.Qd3 e5 28.Bc1 Kh8 
29.Ra7 Rc8 30.f4 Rc7 31.Ra6 e4 32.Bxe4 Nxe4 33.Qxe4 Re7 34.Qd3 Rd7 35.Qf3 
Re8 36.h5 Rd4 37.hxg6 fxg6 38.Bb2 Rxc4 39.Bxg7+ Kxg7 40.Ra7+ Re7 41.Rfa1 
1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.22"]
[Round "7"]
[White "Stein, Leonid"]
[Black "Kavalek, Lubomir"]
[Result "1/2-1/2"]
[ECO "A34"]
[EventDate "1969.07.15"]
[PlyCount "82"]

1.c4 g6 2.Nc3 c5 3.Nf3 Bg7 4.d4 cxd4 5.Nxd4 Nc6 6.Nc2 d6 7.e4 Nh6 8.Be2 f5
9.Bd2 O-O 10.Qc1 Nf7 11.O-O fxe4 12.Nxe4 Bf5 13.Ng3 Bd7 14.Ne3 Nd4 15.Bc3 
Rc8 16.Qd1 Nxe2+ 17.Nxe2 b5 18.Bxg7 Kxg7 19.b3 bxc4 20.bxc4 Qa5 21.Rb1 Rc7
22.Rb2 Ne5 23.Qa1 Kg8 24.Rc2 Bf5 25.Nxf5 Rxf5 26.Nd4 Rf6 27.c5 Nd3 28.cxd6
Rxc2 29.Nxc2 Rxd6 30.Ne3 Qg5 31.Qb1 Kg7 32.Qb3 Nf4 33.g3 Ne2+ 34.Kg2 Nd4 
35.Qb7 a6 36.Qe4 Nf5 37.Re1 Nxe3+ 38.Rxe3 Kf7 39.Rf3+ Rf6 40.Qc4+ Kg7 41.
h4 Qb5 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.22"]
[Round "7"]
[White "Tatai, Stefano"]
[Black "Portisch, Lajos"]
[Result "0-1"]
[ECO "B43"]
[EventDate "1969.07.15"]
[PlyCount "66"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.Be2 b5 7.O-O Bb7 8.Bf3 
Nc6 9.Nxc6 dxc6 10.Be3 Nf6 11.a4 Bd6 12.g3 O-O 13.Qe2 b4 14.Nb1 a5 15.Rc1 
Nd7 16.Qe1 f5 17.exf5 exf5 18.Rd1 Rae8 19.Qd2 Ne5 20.Be2 Rd8 21.Qe1 c5 22.
Nd2 c4 23.Qf1 Qc6 24.f3 c3 25.bxc3 Qxc3 26.Nc4 Nxc4 27.Bxc4+ Kh8 28.Bb6 
Rc8 29.Qd3 Be5 30.Be6 Qxd3 31.cxd3 Rc6 32.Bc5 Bxa1 33.Bxf8 Bd4+ 0-1

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.23"]
[Round "8"]
[White "Barendregt, Johan"]
[Black "Hartoch, Robert"]
[Result "0-1"]
[ECO "B31"]
[EventDate "1969.07.15"]
[PlyCount "68"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.Re1 e6 6.c3 Nge7 7.d4 cxd4 8.cxd4 
Qb6 9.Na3 d5 10.exd5 Nxd5 11.Nc4 Qc7 12.Bg5 O-O 13.Bh4 Nce7 14.Bg3 Qd8 15.
Nd6 Nf5 16.Nxf5 gxf5 17.Qd2 a6 18.Bc4 b5 19.Bb3 Bb7 20.Rac1 Qb6 21.Ne5 
Rad8 22.Rcd1 Kh8 23.Bh4 f6 24.Nf3 a5 25.Bg3 a4 26.Bc2 Rc8 27.Rc1 Ne7 28.
Qb4 Nd5 29.Qd2 Rfe8 30.Bd3 Rxc1 31.Rxc1 Bc8 32.Rc5 Bd7 33.Bh4 Bf8 34.Rxd5 
exd5 0-1

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.23"]
[Round "8"]
[White "Byrne, Robert"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[ECO "B81"]
[EventDate "1969.07.15"]
[PlyCount "94"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g4 a6 7.g5 Nfd7 8.Be3 b5 
9.a3 Bb7 10.Qd2 Qc7 11.O-O-O Nb6 12.Ndxb5 axb5 13.Nxb5 Qc6 14.Nxd6+ Bxd6 
15.Qxd6 Qxd6 16.Rxd6 N6d7 17.Bb5 Ra5 18.Rb6 Rxb5 19.Rxb5 Bxe4 20.Rd1 O-O 
21.c4 Bc6 22.Ra5 Bf3 23.Rd6 Nc6 24.Ra6 Nde5 25.c5 Ne7 26.Bf4 N5g6 27.Bg3 
e5 28.b4 Nf5 29.Rd7 Nd4 30.Kb2 Bg4 31.Rda7 f5 32.gxf6 gxf6 33.Ra8 f5 34.
Rxg6+ hxg6 35.Rxf8+ Kxf8 36.Bxe5 Nc6 37.Bd6+ Ke8 38.b5 Nd4 39.a4 Be2 40.
Kc3 Nxb5+ 41.axb5 Bxb5 42.Kd4 Be2 43.c6 Bf3 44.Ke5 Kd8 45.Kf6 Bh5 46.c7+ 
Kd7 47.Be5 Kc8 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.23"]
[Round "8"]
[White "Damjanovic, Mato"]
[Black "Stein, Leonid"]
[Result "1/2-1/2"]
[ECO "B57"]
[EventDate "1969.07.15"]
[PlyCount "88"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 Bd7 7.Bb3 g6 8.f3 
Nxd4 9.Qxd4 Bg7 10.Be3 O-O 11.Qd2 b5 12.O-O a5 13.a4 b4 14.Ne2 Ne8 15.Bd4 
Rb8 16.Rad1 Bxd4+ 17.Nxd4 Nf6 18.Rfe1 Rb6 19.Qg5 e5 20.Nf5 Be6 21.Re2 Rc6 
22.Red2 Bxf5 23.exf5 Kg7 24.Qe3 Qc7 25.h3 d5 26.Bxd5 Rxc2 27.Be4 Rxd2 28.
Qxd2 Rc8 29.fxg6 hxg6 30.Kh2 Qc4 31.Qe3 Qc5 32.Qe2 b3 33.Rd3 Rb8 34.Rc3 
Qd6 35.Qe3 Rb4 36.Rxb3 Rxa4 37.Rb7 Rb4 38.Rxb4 axb4 39.Qd3 Nxe4 40.Qxe4 f5
41.Qe3 e4+ 42.Kg1 Qd1+ 43.Kh2 Qd6+ 44.Kg1 Qe5 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.23"]
[Round "8"]
[White "Darga, Klaus"]
[Black "Langeweg, Christian"]
[Result "1/2-1/2"]
[ECO "A17"]
[EventDate "1969.07.15"]
[PlyCount "52"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 Bb4 4.Qc2 c5 5.a3 Ba5 6.e3 O-O 7.Be2 Nc6 8.O-O d6 
9.d4 Bxc3 10.Qxc3 Qe7 11.b4 b6 12.Bb2 Bb7 13.bxc5 bxc5 14.dxc5 dxc5 15.
Rab1 Rfd8 16.Qc2 Rab8 17.Ng5 e5 18.Bc3 h6 19.Nf3 Ba8 20.Nd2 Rxb1 21.Rxb1 
Re8 22.Bf3 Qe6 23.Rb5 e4 24.Be2 Nd7 25.h3 Nce5 26.Bxe5 Qxe5 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.23"]
[Round "8"]
[White "Gheorghiu, Florin"]
[Black "Liberzon, Vladimir"]
[Result "1/2-1/2"]
[ECO "B85"]
[EventDate "1969.07.15"]
[PlyCount "44"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be3 Be7 7.Be2 O-O 8.O-O 
Nc6 9.f4 Bd7 10.Kh1 a6 11.Qe1 b5 12.a3 Qc7 13.Qg3 Nxd4 14.Bxd4 Bc6 15.e5 
dxe5 16.Bxe5 Qb7 17.f5 exf5 18.Rxf5 Ne8 19.Rd1 g6 20.Bf3 Bxf3 21.Qxf3 Ra7 
22.Nd5 f6 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.23"]
[Round "8"]
[White "Ivkov, Borislav"]
[Black "Tatai, Stefano"]
[Result "1-0"]
[ECO "E17"]
[EventDate "1969.07.15"]
[PlyCount "47"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.Nc3 Ne4 7.Bd2 O-O 8.d5 Nxc3
9.Bxc3 Bf6 10.Nd4 c6 11.O-O cxd5 12.cxd5 Bxd5 13.Bxd5 exd5 14.Nb5 Nc6 15.
Qxd5 Re8 16.Bxf6 Qxf6 17.Nc3 Qe6 18.Rad1 Ne5 19.Nb5 Qxd5 20.Rxd5 Re7 21.
Rfd1 Kf8 22.b3 Ng4 23.Rxd7 Rxe2 24.Nc7 1-0

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.23"]
[Round "8"]
[White "Portisch, Lajos"]
[Black "Donner, Jan"]
[Result "1-0"]
[ECO "A31"]
[EventDate "1969.07.15"]
[PlyCount "87"]

1.c4 c5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4 cxd4 5.Nxd4 d5 6.cxd5 Nxd5 7.Nxc6 bxc6 8.
Bd2 Nxc3 9.Bxc3 Qxd1+ 10.Rxd1 f6 11.g3 e5 12.Bg2 Bd7 13.O-O Rc8 14.Rxd7 
Kxd7 15.Bh3+ Kc7 16.Ba5+ Kb7 17.Bxc8+ Kxc8 18.Rc1 Kb7 19.Rd1 Ka6 20.Bc3 
Be7 21.Rd7 Re8 22.Kg2 Kb6 23.Kf3 h5 24.h3 a6 25.Ke4 g6 26.g4 hxg4 27.hxg4 
a5 28.f3 Ka6 29.a4 Kb6 30.Be1 Bb4 31.Bf2+ Bc5 32.Bh4 Rf8 33.Kd3 f5 34.Bd8+
Ka6 35.g5 Bd4 36.b3 Rh8 37.Rd6 Kb7 38.Bxa5 Rh1 39.Bc3 c5 40.Bxd4 exd4 41.
Rxg6 Rc1 42.Rf6 Rc3+ 43.Kd2 Rxb3 44.g6 1-0

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.23"]
[Round "8"]
[White "Vasiukov, Evgeny"]
[Black "Kavalek, Lubomir"]
[Result "1/2-1/2"]
[ECO "B53"]
[EventDate "1969.07.15"]
[PlyCount "84"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 Nc6 5.Bb5 a6 6.Bxc6+ bxc6 7.O-O e5 8.Qd3
h6 9.c4 Qc7 10.Nc3 Nf6 11.b3 Be7 12.Bb2 Be6 13.Rac1 O-O 14.Nd5 cxd5 15.
cxd5 Qb7 16.dxe6 Qxe4 17.exf7+ Rxf7 18.Qxe4 Nxe4 19.Rfd1 Nxf2 20.Kxf2 e4 
21.Rc4 exf3 22.gxf3 Rf5 23.Rg1 Bf8 24.Rc7 Rc5 25.Rxc5 dxc5 26.Rg4 Kf7 27.
Re4 Rd8 28.Ke2 Re8 29.Be5 Re6 30.Kd3 Bd6 31.Rf4+ Ke7 32.Bxd6+ Rxd6+ 33.Ke3
Re6+ 34.Kf2 Rd6 35.Ra4 Ke6 36.Ra5 Rc6 37.Ke3 Kd5 38.b4 Kc4 39.Rxc5+ Rxc5 
40.bxc5 Kxc5 41.Ke4 h5 42.h4 a5 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.25"]
[Round "9"]
[White "Donner, Jan"]
[Black "Ivkov, Borislav"]
[Result "1/2-1/2"]
[ECO "B06"]
[EventDate "1969.07.15"]
[PlyCount "175"]

1.d4 g6 2.e4 Bg7 3.Nc3 d6 4.f4 a6 5.Nf3 b5 6.Bd3 Bb7 7.Be3 Nd7 8.a4 b4 9.
Ne2 Ngf6 10.Nd2 c5 11.c3 bxc3 12.bxc3 cxd4 13.cxd4 Qa5 14.O-O Ng4 15.Rf3 
Nxe3 16.Rxe3 Qb6 17.Rb1 Qa7 18.Kh1 Nf6 19.h3 O-O 20.Bc2 Rac8 21.Reb3 Bc6 
22.Rc3 Bd7 23.Rxc8 Rxc8 24.Bd3 Bc6 25.Qb3 Nd7 26.Nf3 Rb8 27.Qa2 Rxb1+ 28.
Bxb1 Qb7 29.Bd3 e6 30.Nc3 Nf6 31.Qc4 a5 32.Nd2 Nh5 33.Ne2 d5 34.Qc2 dxe4 
35.Bxe4 Bxe4 36.Nxe4 Bxd4 37.Nxd4 Qxe4 38.Qxe4 Ng3+ 39.Kh2 Nxe4 40.Nb3 Nc3
41.Nxa5 Nxa4 42.Kg3 f6 43.Kf3 Kf7 44.Nc4 Nc5 45.Ke3 Ke7 46.Kd4 Nb7 47.Nd2 
Nd6 48.Nf3 Nf5+ 49.Kd3 Ng3 50.Ke3 Kd6 51.Kf2 Ne4+ 52.Ke3 Kd5 53.Nd4 Ng3 
54.Nb5 Kc5 55.Nc7 Nf5+ 56.Ke4 Kd6 57.Nb5+ Kc6 58.Nc3 Kc5 59.Kd3 Nd6 60.Ne2
h6 61.Nc3 Kb4 62.Ne2 Nb5 63.h4 Kc5 64.g4 Kd5 65.Ke3 Nd6 66.Nc3+ Kc4 67.Ne2
h5 68.g5 Nf5+ 69.Ke4 Nd6+ 70.Ke3 fxg5 71.hxg5 Kd5 72.Nc3+ Kc4 73.Ne2 Kd5 
74.Nc3+ Kc5 75.Ne2 Kc4 76.Ng1 Kd5 77.Nf3 Nf5+ 78.Kd3 h4 79.Ne5 h3 80.Ng4 
Nh4 81.Ke3 Ng2+ 82.Kf3 Kd4 83.Kg3 Ke4 84.Nf2+ Kf5 85.Nxh3 Ne3 86.Nf2 Nf1+ 
87.Kf3 Nd2+ 88.Ke3 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.25"]
[Round "9"]
[White "Hartoch, Robert"]
[Black "Vasiukov, Evgeny"]
[Result "0-1"]
[ECO "A23"]
[EventDate "1969.07.15"]
[PlyCount "132"]

1.c4 e5 2.Nc3 Nf6 3.g3 c6 4.Nf3 e4 5.Nd4 d5 6.Bg2 dxc4 7.Nc2 Na6 8.Nxe4 
Nxe4 9.Bxe4 Nc5 10.Bg2 Be6 11.O-O h5 12.Ne3 h4 13.Qc2 hxg3 14.fxg3 Qg5 15.
Rf2 Qh5 16.Bf3 Qh7 17.Qxh7 Rxh7 18.Bg4 Bxg4 19.Nxg4 Rh5 20.Rb1 Rd8 21.Ne3 
b5 22.Nf1 Ne6 23.b3 Bc5 24.e3 cxb3 25.Rxb3 Bb6 26.d4 a6 27.Rb1 c5 28.dxc5 
Bxc5 29.Rd2 Rhd5 30.Kf2 Ng5 31.Rxd5 Rxd5 32.Ke2 Ne4 33.Bd2 Kd7 34.Be1 Kc6 
35.Rd1 Rxd1 36.Kxd1 Kd5 37.Kc2 Kc4 38.Ba5 f5 39.Bc7 Bb4 40.Be5 g6 41.Bb2 
a5 42.h3 Nf2 43.g4 fxg4 44.hxg4 Nxg4 45.e4 a4 46.a3 Be7 47.Nd2+ Kc5 48.Kd3
Nf2+ 49.Ke2 Bg5 50.Nf3 Nxe4 51.Ne5 Kd5 52.Nxg6 Kc4 53.Ne5+ Kb3 54.Bd4 Bc1 
55.Kd3 Nd6 56.Nc6 Nc4 57.Bc5 Bb2 58.Bd4 Bxa3 59.Na7 b4 60.Nc6 Bb2 61.Bxb2 
Nxb2+ 62.Kd2 a3 63.Kc1 Kc3 64.Kb1 b3 65.Na5 Nc4 66.Nc6 Nd2+ 0-1

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.25"]
[Round "9"]
[White "Kavalek, Lubomir"]
[Black "Damjanovic, Mato"]
[Result "0-1"]
[ECO "B32"]
[EventDate "1969.07.15"]
[PlyCount "122"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Qc7 5.Nb5 Qb8 6.c4 Nf6 7.N5c3 g6 8.Be2 
Bg7 9.Be3 d6 10.O-O Bd7 11.f3 O-O 12.Na3 Rd8 13.Qd2 Be8 14.Rfd1 Nb4 15.
Rac1 Nd7 16.Nc2 Bxc3 17.bxc3 Nxc2 18.Rxc2 Nc5 19.Rb2 Qc7 20.Qe1 f6 21.h4 
Bf7 22.g4 b6 23.g5 fxg5 24.hxg5 Rac8 25.Bf1 e5 26.Rh2 Be6 27.Qh4 Qf7 28.f4
exf4 29.Bd4 Nd7 30.Rdd2 Ne5 31.Rdf2 Rc7 32.Rxf4 Nf3+ 33.Rxf3 Qxf3 34.Be2 
Qf8 35.Qg3 Rf7 36.Rh4 Rdd7 37.a4 Qc8 38.Rh6 Kf8 39.Qh4 Ke8 40.Bh5 Qxc4 41.
Rxh7 Qf1+ 42.Kh2 gxh5 43.Rh8+ Rf8 44.Qxh5+ Qf7 45.Rxf8+ Kxf8 46.Qh6+ Ke8 
47.g6 Qg8 48.Qh5 Kd8 49.a5 Kc7 50.axb6+ axb6 51.Qb5 Qb8 52.Kg3 Qa7 53.Kf4 
Qa5 54.Qb1 Rd8 55.g7 Rb8 56.Qh1 Qa2 57.Qh6 Bg8 58.Ke3 Qe6 59.Qh1 Re8 60.
Qb1 b5 61.Qh1 Qg4 0-1

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.25"]
[Round "9"]
[White "Langeweg, Christian"]
[Black "Gheorghiu, Florin"]
[Result "1/2-1/2"]
[ECO "D91"]
[EventDate "1969.07.15"]
[PlyCount "83"]

1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.Nc3 d5 5.Bg5 Ne4 6.cxd5 Nxg5 7.Nxg5 e6 8.Nf3 
exd5 9.e3 O-O 10.b4 b6 11.Rc1 a6 12.Be2 Bb7 13.O-O Nc6 14.Qb3 Ne7 15.Rfd1 
Qd6 16.Bf1 Rfe8 17.g3 Rad8 18.b5 a5 19.Bg2 Nf5 20.Ne5 Qb4 21.Qxb4 axb4 22.
Ne2 Re7 23.Nf4 Bxe5 24.dxe5 Ra8 25.Rd2 Rxe5 26.Nd3 Re7 27.Nxb4 Ra4 28.Rb1 
Nd6 29.Bxd5 Ne4 30.Rd3 Nc5 31.Rd4 Re5 32.Bxb7 Nxb7 33.Rd7 Rxb5 34.Rxc7 Nc5
35.a3 Rxa3 36.Rb2 Ra1+ 37.Kg2 Ra4 38.Nd3 Rxb2 39.Nxb2 Rb4 40.Nd1 Rb3 41.
Kf3 Na4 42.Ke2 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.25"]
[Round "9"]
[White "Liberzon, Vladimir"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[ECO "C95"]
[EventDate "1969.07.15"]
[PlyCount "58"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 
9.h3 Nb8 10.d4 Nbd7 11.Nbd2 Bb7 12.Bc2 Re8 13.Nf1 Bf8 14.Ng3 g6 15.Bd2 c5 
16.d5 Bg7 17.b3 Nb6 18.Nh2 Bc8 19.Rf1 Ra7 20.f4 exf4 21.Bxf4 Qe7 22.Qd2 
Qf8 23.Rae1 Nfd7 24.Ng4 Ne5 25.Nh6+ Kh8 26.Re2 Nbd7 27.Ref2 Nf6 28.Ne2 Rc7
29.g4 Ng8 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.25"]
[Round "9"]
[White "Ree, Hans"]
[Black "Darga, Klaus"]
[Result "0-1"]
[ECO "C18"]
[EventDate "1969.07.15"]
[PlyCount "58"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.Qg4 Ne7 6.a3 Bxc3+ 7.bxc3 Qc7 8.Qxg7 
Rg8 9.Qxh7 cxd4 10.Ne2 Nbc6 11.f4 Bd7 12.Qd3 dxc3 13.Ng3 O-O-O 14.Be2 Nf5 
15.Nxf5 exf5 16.Bf3 Qb6 17.Qxc3 Kb8 18.Qb3 Qxb3 19.cxb3 Nd4 20.Kf2 Nxb3 
21.Rb1 Ba4 22.h4 d4 23.Bd1 Nc5 24.Bxa4 Nxa4 25.h5 Nc3 26.Rb2 Ne4+ 27.Ke1 
Rc8 28.Bd2 Rxg2 29.h6 d3 0-1

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.25"]
[Round "9"]
[White "Stein, Leonid"]
[Black "Byrne, Robert"]
[Result "1/2-1/2"]
[ECO "E64"]
[EventDate "1969.07.15"]
[PlyCount "62"]

1.c4 Nf6 2.Nc3 g6 3.g3 Bg7 4.Bg2 O-O 5.d4 d6 6.Nf3 c5 7.d5 Na6 8.O-O Nc7 
9.e4 Bg4 10.h3 Bxf3 11.Bxf3 a6 12.Rb1 b5 13.b3 Rb8 14.Bd2 e6 15.Qc2 exd5 
16.exd5 Nd7 17.Ne4 h6 18.Bg2 f5 19.Nc3 Re8 20.Rfe1 Qf6 21.Ne2 b4 22.Nf4 
Kh7 23.h4 h5 24.Ne6 Nxe6 25.dxe6 Rxe6 26.Rxe6 Qxe6 27.Re1 Qf7 28.Qd3 Bd4 
29.Qf3 Nf6 30.Qf4 Re8 31.Qxd6 Ne4 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.25"]
[Round "9"]
[White "Tatai, Stefano"]
[Black "Barendregt, Johan"]
[Result "1/2-1/2"]
[ECO "C41"]
[EventDate "1969.07.15"]
[PlyCount "111"]

1.e4 d6 2.d4 Nf6 3.Nc3 e5 4.Nf3 Nbd7 5.g3 g6 6.Bg2 Bg7 7.O-O O-O 8.Re1 c6 
9.a4 Re8 10.h3 Qc7 11.Be3 b6 12.dxe5 dxe5 13.a5 b5 14.Nd2 Nf8 15.b4 Ne6 
16.Na2 Ba6 17.Qb1 Red8 18.Nb3 Bf8 19.Qb2 Rd7 20.Rad1 Rad8 21.Qa1 Be7 22.
Rxd7 Rxd7 23.Rd1 Rxd1+ 24.Qxd1 c5 25.bxc5 Nxc5 26.Nxc5 Bxc5 27.Bxc5 Qxc5 
28.Qf3 Ne8 29.Qc3 Qxc3 30.Nxc3 Nd6 31.f3 Bb7 32.Bf1 Bc6 33.Na2 Nb7 34.a6 
Nc5 35.Nb4 Bd7 36.Nd5 Kf8 37.Nc7 b4 38.Nd5 b3 39.cxb3 Nxb3 40.Nf6 Ke7 41.
Nxh7 Nd2 42.Bg2 Bb5 43.f4 Bxa6 44.fxe5 Bb7 45.Kf2 Nc4 46.Nf6 Nxe5 47.Nd5+ 
Bxd5 48.exd5 f5 49.Ke3 Kd6 50.Kd4 Nd7 51.g4 fxg4 52.hxg4 g5 53.Ke4 a5 54.
Kf5 Nc5 55.Bf1 Kxd5 56.Bb5 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.26"]
[Round "10"]
[White "Barendregt, Johan"]
[Black "Donner, Jan"]
[Result "1/2-1/2"]
[ECO "B06"]
[EventDate "1969.07.15"]
[PlyCount "57"]

1.e4 d6 2.f4 g6 3.Nf3 Bg7 4.g3 c5 5.Bg2 Nc6 6.O-O Rb8 7.a4 a6 8.Nc3 b5 9.
axb5 axb5 10.d3 e6 11.g4 Nge7 12.Ne2 b4 13.Ng3 Nd4 14.Nxd4 Bxd4+ 15.Kh1 h5
16.g5 Bg7 17.h4 f5 18.exf5 exf5 19.Re1 Bb7 20.Qe2 Bxg2+ 21.Kxg2 Qd7 22.Ra6
Kf7 23.Qf3 Rhd8 24.Nf1 Qb7 25.Qxb7 Rxb7 26.Nd2 Nd5 27.Nc4 Rbd7 28.b3 Nc7 
29.Rb6 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.26"]
[Round "10"]
[White "Byrne, Robert"]
[Black "Kavalek, Lubomir"]
[Result "1/2-1/2"]
[ECO "A21"]
[EventDate "1969.07.15"]
[PlyCount "39"]

1.c4 g6 2.Nc3 Bg7 3.g3 e5 4.Bg2 d6 5.b4 Ne7 6.Rb1 O-O 7.d3 a6 8.Bd2 c6 9.
Nf3 b5 10.O-O d5 11.cxd5 cxd5 12.a4 Qd7 13.Qb3 Bb7 14.Bg5 d4 15.Ne4 Bxe4 
16.dxe4 Nc8 17.a5 h6 18.Bd2 Nd6 19.Qd5 Qc6 20.Rfc1 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.26"]
[Round "10"]
[White "Darga, Klaus"]
[Black "Stein, Leonid"]
[Result "1-0"]
[ECO "A46"]
[EventDate "1969.07.15"]
[PlyCount "107"]

1.d4 Nf6 2.Nf3 d6 3.g3 Bg4 4.Bg2 Nbd7 5.c4 c6 6.O-O e5 7.Nc3 Be7 8.h3 Bh5 
9.d5 O-O 10.Nh4 Rc8 11.Nf5 Nb6 12.c5 Nbxd5 13.cxd6 Bxd6 14.Nxd6 Qxd6 15.g4
Bg6 16.e4 Rfd8 17.exd5 Nxd5 18.Ne4 Qb4 19.Qe2 Rc7 20.a3 Qe7 21.Re1 Rcd7 
22.Bd2 f6 23.Rac1 Qf7 24.Qc4 Kh8 25.Nc5 Rd6 26.Ne4 R6d7 27.Nc5 Rd6 28.b4 
h6 29.Ne4 Re6 30.Qb3 b6 31.Rcd1 f5 32.gxf5 Bxf5 33.Ng3 Rf8 34.Qf3 Rf6 35.
Nxf5 Rxf5 36.Qg3 Rf6 37.Qxe5 Rg6 38.f4 Nxf4 39.Bxf4 Qxf4 40.Qxf4 Rxf4 41.
Rf1 Rc4 42.Rc1 Rxc1 43.Rxc1 Rg3 44.Rxc6 Rxa3 45.b5 Kg8 46.Rc7 h5 47.h4 Ra4
48.Bf1 Kf8 49.Be2 g6 50.Kf2 Rxh4 51.Rxa7 Ke8 52.Rg7 Rf4+ 53.Ke3 Rf6 54.
Rxg6 1-0

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.26"]
[Round "10"]
[White "Gheorghiu, Florin"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[ECO "D79"]
[EventDate "1969.07.15"]
[PlyCount "27"]

1.Nf3 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 c6 5.d4 O-O 6.O-O d5 7.cxd5 cxd5 8.Nc3 
Ne4 9.Nd2 Nxd2 10.Qxd2 e6 11.b3 Nc6 12.Ba3 Re8 13.Nb5 a6 14.Nd6 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.26"]
[Round "10"]
[White "Hartoch, Robert"]
[Black "Tatai, Stefano"]
[Result "1/2-1/2"]
[ECO "A36"]
[EventDate "1969.07.15"]
[PlyCount "112"]

1.c4 g6 2.g3 Bg7 3.Bg2 c5 4.Nc3 Nc6 5.a3 e6 6.e4 Nge7 7.Nge2 O-O 8.O-O a6 
9.Rb1 b5 10.cxb5 axb5 11.b4 cxb4 12.axb4 d5 13.d3 d4 14.Nxb5 Rb8 15.Na3 
Rxb4 16.Rxb4 Nxb4 17.Qb3 Nbc6 18.Bd2 e5 19.f4 Be6 20.Qc2 Qc8 21.Nb5 Qd7 
22.Qc5 Rb8 23.Rc1 Na5 24.Bxa5 Rxb5 25.Qc7 Qxc7 26.Bxc7 Rb2 27.Bf1 Bg4 28.
Kf2 exf4 29.Bxf4 f5 30.e5 Nd5 31.Ke1 Bxe2 32.Bxe2 Nc3 33.Bf1 Kf7 34.Ra1 
Rb1+ 35.Rxb1 Nxb1 36.Bg2 Ke6 37.Bb7 Bxe5 38.Bc1 Nc3 39.Ba6 Kf6 40.Bc4 g5 
41.Kf2 f4 42.g4 Bd6 43.Kf3 Ke5 44.h3 Bb4 45.Kf2 Kd6 46.Kf3 Kc5 47.h4 h6 
48.Be6 Kd6 49.Bg8 Kc6 50.hxg5 hxg5 51.Be6 Kd6 52.Bb3 Ke5 53.Bc4 Na4 54.Bb3
Nb6 55.Bc2 Nd7 56.Bb3 Nf8 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.26"]
[Round "10"]
[White "Ivkov, Borislav"]
[Black "Liberzon, Vladimir"]
[Result "1/2-1/2"]
[ECO "E69"]
[EventDate "1969.07.15"]
[PlyCount "44"]

1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.Nc3 d6 6.Nf3 Nbd7 7.O-O e5 8.e4 c6 
9.h3 Qb6 10.Re1 Re8 11.d5 Nc5 12.Rb1 a5 13.Be3 Qc7 14.Nd2 Bd7 15.Bf1 Reb8 
16.dxc6 Bxc6 17.Bg2 b6 18.b3 Qb7 19.Qc2 Rc8 20.a3 Ne6 21.Nd5 Nd4 22.Qd3 
Nxd5 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.26"]
[Round "10"]
[White "Portisch, Lajos"]
[Black "Langeweg, Christian"]
[Result "1-0"]
[ECO "E56"]
[EventDate "1969.07.15"]
[PlyCount "47"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Bd3 O-O 6.Nf3 d5 7.O-O dxc4 8.Bxc4 
Nc6 9.a3 Ba5 10.Bd3 Qe7 11.Ne4 cxd4 12.b4 Bb6 13.b5 Nb8 14.Nxf6+ Qxf6 15.
exd4 h6 16.Bb2 Nd7 17.Bb1 Rd8 18.Qc2 Nf8 19.Re1 Ba5 20.Re3 Bd7 21.Qe2 Rac8
22.Be4 Rc7 23.d5 Bc3 24.Rc1 1-0

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.26"]
[Round "10"]
[White "Vasiukov, Evgeny"]
[Black "Damjanovic, Mato"]
[Result "0-1"]
[ECO "B47"]
[EventDate "1969.07.15"]
[PlyCount "62"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Qc7 5.Nc3 e6 6.g3 a6 7.Bg2 Nf6 8.O-O 
Nxd4 9.Qxd4 Bc5 10.Bf4 d6 11.Qd2 e5 12.Bg5 Be6 13.Bxf6 gxf6 14.Qh6 Ke7 15.
Nd5+ Bxd5 16.exd5 Rag8 17.Kh1 Rg6 18.Qh5 Qd7 19.Bh3 Qa4 20.Bf5 Rg5 21.Qf3 
h5 22.h4 Rg7 23.c3 Rhg8 24.Kh2 a5 25.Qxh5 Bxf2 26.Rxf2 Rxg3 27.Qh6 Qc4 28.
Bh7 R8g6 29.Bxg6 Qg4 30.Kh1 Rh3+ 31.Rh2 Qf3+ 0-1

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.28"]
[Round "11"]
[White "Damjanovic, Mato"]
[Black "Byrne, Robert"]
[Result "0-1"]
[ECO "B95"]
[EventDate "1969.07.15"]
[PlyCount "65"]

1.e4 c5 2.Nf3 d6 3.d4 Nf6 4.Nc3 cxd4 5.Nxd4 a6 6.Bg5 e6 7.Qe2 Be7 8.f4 h6 
9.Bxf6 Bxf6 10.O-O-O Qc7 11.h4 Nc6 12.Nxc6 bxc6 13.Rh3 Rb8 14.Qd3 d5 15.e5
Be7 16.Qg3 O-O 17.Bd3 Qb6 18.b3 Qa5 19.Kb1 Ba3 20.Ne2 Kh8 21.Qg4 c5 22.f5 
c4 23.f6 Rg8 24.Bg6 Qc7 25.Bxf7 Qxf7 26.Qf4 Kh7 27.g4 gxf6 28.g5 f5 29.Nd4
Qh5 30.Rg1 hxg5 31.Qf2 g4 32.Rhh1 Bc5 33.Rd1 0-1

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.28"]
[Round "11"]
[White "Donner, Jan"]
[Black "Hartoch, Robert"]
[Result "1/2-1/2"]
[ECO "D31"]
[EventDate "1969.07.15"]
[PlyCount "89"]

1.d4 d5 2.c4 e6 3.cxd5 exd5 4.Nc3 Be7 5.Bf4 Nf6 6.e3 O-O 7.Bd3 b6 8.Nge2 
c5 9.O-O c4 10.Bc2 Bb7 11.b3 cxb3 12.Bxb3 Nc6 13.Be5 Na5 14.Bxf6 Bxf6 15.
Nf4 Nxb3 16.axb3 Qd7 17.b4 a6 18.Qb3 Rfd8 19.Rfc1 Rac8 20.Nd3 h5 21.b5 a5 
22.Na4 Qd6 23.Rxc8 Rxc8 24.Rc1 Rxc1+ 25.Nxc1 Bd8 26.Nd3 h4 27.Nc3 g5 28.g3
hxg3 29.hxg3 Kg7 30.Kf1 f6 31.Ke2 Be7 32.Kd2 Qd7 33.Qd1 Qc7 34.Qb3 Qd6 35.
Qa2 Kf8 36.Qa1 Qd7 37.Qh1 Kg7 38.Qh5 Bb4 39.f4 Qc7 40.Nxb4 axb4 41.Nd1 Qe7
42.f5 Bc8 43.Qg6+ Kf8 44.Nf2 b3 45.Qh6+ 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.28"]
[Round "11"]
[White "Kavalek, Lubomir"]
[Black "Darga, Klaus"]
[Result "1/2-1/2"]
[ECO "B42"]
[EventDate "1969.07.15"]
[PlyCount "112"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 g6 6.c4 Bg7 7.Be3 Ne7 8.Nc3 O-O
9.O-O d6 10.Rc1 Nd7 11.Be2 b6 12.Qd2 Bb7 13.Rfd1 Nc5 14.f3 d5 15.cxd5 exd5
16.b4 Nd7 17.exd5 Nxd5 18.Nxd5 Bxd5 19.Nc6 Bxc6 20.Rxc6 Qe7 21.Rc7 Rfe8 
22.Bc4 Qxe3+ 23.Qxe3 Rxe3 24.Rdxd7 Be5 25.Bxf7+ Kf8 26.Rb7 Rc8 27.Kf2 Rec3
28.Bb3 R3c7 29.Rxh7 Rxb7 30.Rxb7 Rc6 31.h4 Rd6 32.f4 Bc3 33.b5 a5 34.Rc7 
Rd3 35.Rc6 Bd4+ 36.Ke2 Re3+ 37.Kd2 Rg3 38.Bd5 Rg4 39.h5 gxh5 40.f5 Kg7 41.
Kd3 Bc5 42.f6+ Kg6 43.Be4+ Kf7 44.Bd5+ Kg6 45.Bf3 Rd4+ 46.Kc3 h4 47.a3 Rf4
48.Rxc5 Rxf3+ 49.gxf3 bxc5 50.b6 h3 51.b7 h2 52.b8=Q h1=Q 53.Qf4 Qa1+ 54.
Kb3 Qd1+ 55.Kb2 Qd4+ 56.Qxd4 cxd4 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.28"]
[Round "11"]
[White "Langeweg, Christian"]
[Black "Ivkov, Borislav"]
[Result "1/2-1/2"]
[ECO "A12"]
[EventDate "1969.07.15"]
[PlyCount "48"]

1.Nf3 Nf6 2.g3 d5 3.c4 c6 4.b3 Bg4 5.Bg2 e6 6.O-O Bd6 7.Bb2 Nbd7 8.d3 O-O 
9.Nc3 Re8 10.Rc1 a6 11.Rc2 Rc8 12.Qd2 Qe7 13.Qc1 Rcd8 14.Re1 Qf8 15.Nh4 d4
16.Nd1 e5 17.e4 Nc5 18.Bf1 a5 19.f3 Bc8 20.Nf5 Bb8 21.Nf2 g6 22.Nh4 Ne6 
23.Bh3 Qd6 24.Rf1 Qe7 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.28"]
[Round "11"]
[White "Liberzon, Vladimir"]
[Black "Barendregt, Johan"]
[Result "1-0"]
[ECO "A42"]
[EventDate "1969.07.15"]
[PlyCount "79"]

1.c4 g6 2.Nc3 Bg7 3.d4 d6 4.e4 c5 5.d5 e6 6.Nf3 Ne7 7.Be2 exd5 8.cxd5 Nd7 
9.O-O O-O 10.Bf4 Ne5 11.Nxe5 dxe5 12.Be3 b6 13.a3 Bb7 14.b4 cxb4 15.axb4 
Nc8 16.Bb5 Qd6 17.Qb3 a6 18.Be2 f5 19.f3 Rf7 20.b5 a5 21.Na4 Bf6 22.Nb2 
Bd8 23.Nc4 Qe7 24.Rfd1 Bc7 25.Qd3 f4 26.d6 Nxd6 27.Nxd6 Rd8 28.Qb3 Bxd6 
29.Bxb6 Bc5+ 30.Bxc5 Qxc5+ 31.Kh1 Rxd1+ 32.Qxd1 Kg7 33.Rxa5 Bc8 34.Ra1 Rd7
35.Qc1 Qd4 36.Rb1 Bb7 37.Qd1 Qxd1+ 38.Rxd1 Rxd1+ 39.Bxd1 Kf6 40.Bb3 1-0

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.28"]
[Round "11"]
[White "Ree, Hans"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[ECO "B48"]
[EventDate "1969.07.15"]
[PlyCount "74"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Qc7 5.Nc3 e6 6.Be3 a6 7.Bd3 Nf6 8.O-O 
Bd6 9.Kh1 Bf4 10.Bxf4 Qxf4 11.Nde2 Qh4 12.Qd2 b5 13.a3 Ng4 14.Qf4 Nce5 15.
h3 g5 16.Qg3 Qxg3 17.Nxg3 Nf6 18.f4 gxf4 19.Rxf4 Rg8 20.Nge2 Ke7 21.Raf1 
Rg6 22.Rh4 Bb7 23.Nf4 Rg7 24.Rh6 Ng8 25.Rh4 Rf8 26.Rf2 f5 27.Nh5 Rg5 28.
exf5 Nxd3 29.cxd3 Rfxf5 30.Rxf5 Rxf5 31.Kg1 Rg5 32.g4 Kf7 33.Kf2 Rc5 34.
Ke3 a5 35.d4 Rg5 36.b4 axb4 37.axb4 Bc6 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.28"]
[Round "11"]
[White "Stein, Leonid"]
[Black "Gheorghiu, Florin"]
[Result "1-0"]
[ECO "B08"]
[EventDate "1969.07.15"]
[PlyCount "69"]

1.Nf3 g6 2.e4 Bg7 3.d4 d6 4.Nc3 Nf6 5.Bg5 c6 6.a4 O-O 7.h3 Nbd7 8.Be2 e5 
9.dxe5 dxe5 10.Qc1 Nc5 11.O-O Qc7 12.Nd2 Ne6 13.Be3 Nd4 14.Bc4 Nh5 15.Nb3 
Be6 16.Bxe6 fxe6 17.Rd1 Rad8 18.Rd2 Nf4 19.Qf1 Qe7 20.Rad1 c5 21.Kh1 Rf7 
22.Nc1 Bh6 23.g3 Nh5 24.Bxh6 Nxg3+ 25.fxg3 Rxf1+ 26.Rxf1 g5 27.Rdf2 Nf5 
28.exf5 Qf6 29.fxe6 Qxh6 30.e7 Qxh3+ 31.Kg1 Qxg3+ 32.Rg2 Qe3+ 33.Kh2 Re8 
34.Nd5 Qe4 35.Rxg5+ 1-0

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.28"]
[Round "11"]
[White "Tatai, Stefano"]
[Black "Vasiukov, Evgeny"]
[Result "0-1"]
[ECO "B48"]
[EventDate "1969.07.15"]
[PlyCount "80"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.Bd3 Nc6 7.Be3 Nf6 8.O-O 
h5 9.h3 b5 10.Nxc6 Qxc6 11.e5 b4 12.Ne2 Bb7 13.f3 Bc5 14.Bf2 Nd5 15.Be4 
Qc7 16.Bxc5 Qxc5+ 17.Qd4 Qxd4+ 18.Nxd4 Ke7 19.a3 Rhb8 20.Rfd1 Ne3 21.Re1 
Bxe4 22.Rxe3 Bd5 23.b3 a5 24.h4 a4 25.c4 axb3 26.Nxb3 Bxc4 27.axb4 Rxa1+ 
28.Nxa1 Rxb4 29.Nc2 Rb1+ 30.Kh2 Rc1 31.Ne1 f6 32.f4 Kf7 33.Nf3 Rd1 34.Rc3 
Bd5 35.Kg3 Kg6 36.Rc8 Rd3 37.Rg8 Kh7 38.Rf8 Bc4 39.Re8 Rd5 40.Rd8 Kg6 0-1

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.29"]
[Round "12"]
[White "Barendregt, Johan"]
[Black "Langeweg, Christian"]
[Result "0-1"]
[ECO "B22"]
[EventDate "1969.07.15"]
[PlyCount "84"]

1.e4 c5 2.Nf3 e6 3.c3 Nf6 4.Bd3 Nc6 5.O-O d5 6.e5 Nd7 7.Re1 Qc7 8.Qe2 b6 
9.Na3 a6 10.Bb1 b5 11.Nc2 b4 12.cxb4 cxb4 13.d4 h6 14.Ne3 Be7 15.Nf1 a5 
16.Ng3 Ba6 17.Qe3 a4 18.Nh5 Bf8 19.Nf4 Nb6 20.b3 Bb5 21.Bb2 Na7 22.Rc1 Qd7
23.a3 axb3 24.Qxb3 Bc4 25.Qd1 b3 26.Bd3 Na4 27.Qd2 Rc8 28.Bxc4 dxc4 29.Ne2
Nb5 30.Nc3 Nbxc3 31.Rxc3 Be7 32.Rac1 Nxc3 33.Qxc3 O-O 34.Nd2 Qa4 35.Nb1 
Bg5 36.Rf1 Bd8 37.Qe3 Ba5 38.Nc3 Qd7 39.Rc1 Rfd8 40.Rd1 Bxc3 41.Qxc3 Qd5 
42.f3 Qa8 0-1

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.29"]
[Round "12"]
[White "Darga, Klaus"]
[Black "Damjanovic, Mato"]
[Result "1/2-1/2"]
[ECO "A34"]
[EventDate "1969.07.15"]
[PlyCount "42"]

1.c4 c5 2.Nc3 g6 3.Nf3 Bg7 4.d4 cxd4 5.Nxd4 Nc6 6.Nb3 Nf6 7.e4 O-O 8.Be2 
d6 9.Be3 Nd7 10.O-O b6 11.Nd4 Bb7 12.Re1 Nc5 13.f3 Nxd4 14.Bxd4 Bh6 15.Bf1
a5 16.Be3 Bxe3+ 17.Rxe3 Bc6 18.Qd2 e6 19.Rd1 Nb7 20.Qf2 Nc5 21.Bd3 e5 
1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.29"]
[Round "12"]
[White "Gheorghiu, Florin"]
[Black "Kavalek, Lubomir"]
[Result "0-1"]
[ECO "E83"]
[EventDate "1969.07.15"]
[PlyCount "50"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 Nc6 7.Nge2 Rb8 8.Qd2 Re8
9.Rd1 a6 10.Nc1 e5 11.dxe5 Nxe5 12.Be2 b5 13.cxb5 axb5 14.Bxb5 Nxe4 15.
fxe4 Rxb5 16.Nxb5 Nc4 17.Qf2 Rxe4 18.O-O Nxe3 19.Qxf7+ Kh8 20.Qxc7 Qxc7 
21.Nxc7 Nxd1 22.Rxd1 Bd4+ 23.Kf1 Bg4 24.Rd2 Be3 25.Rc2 Rd4 0-1

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.29"]
[Round "12"]
[White "Hartoch, Robert"]
[Black "Liberzon, Vladimir"]
[Result "1/2-1/2"]
[ECO "A25"]
[EventDate "1969.07.15"]
[PlyCount "67"]

1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Rb1 f5 6.b4 d6 7.e3 Nf6 8.Nge2 e4 9.
d4 exd3 10.Bxc6+ bxc6 11.Qxd3 O-O 12.O-O a5 13.b5 cxb5 14.cxb5 Bb7 15.Nd4 
Qd7 16.Bd2 f4 17.Nc6 f3 18.Rfc1 d5 19.Na4 Ne4 20.Be1 Rf6 21.Nxa5 Nxf2 22.
Bxf2 Rxa5 23.Nc5 Qh3 24.Qf1 Qxf1+ 25.Kxf1 Bc8 26.a4 Bf8 27.Rb4 c6 28.e4 
Bh3+ 29.Kg1 cxb5 30.Rxb5 Rxb5 31.axb5 Bxc5 32.Rxc5 dxe4 33.Rc6 Rf5 34.Rc5 
1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.29"]
[Round "12"]
[White "Ivkov, Borislav"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[ECO "B85"]
[EventDate "1969.07.15"]
[PlyCount "31"]

1.Nf3 c5 2.e4 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e6 7.O-O Be7 8.Be3 
O-O 9.f4 Qc7 10.Qe1 b5 11.Bf3 Bb7 12.e5 Ne8 13.Qg3 Nd7 14.a3 Rb8 15.Kh1 
Nb6 16.Bxb7 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.29"]
[Round "12"]
[White "Portisch, Lajos"]
[Black "Stein, Leonid"]
[Result "1/2-1/2"]
[ECO "D74"]
[EventDate "1969.07.15"]
[PlyCount "80"]

1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 d5 5.cxd5 Nxd5 6.Bg2 c6 7.O-O O-O 8.Nc3 
Nb6 9.e3 a5 10.b3 Na6 11.Bb2 Bf5 12.h3 a4 13.e4 Be6 14.Ne2 Nc7 15.Rb1 Qc8 
16.Nf4 axb3 17.axb3 Ra2 18.Qc2 Qd7 19.Ra1 Rfa8 20.Rxa2 Rxa2 21.Ra1 Rxa1+ 
22.Bxa1 Qd6 23.Bb2 Bc8 24.Bf1 Ne6 25.Ne2 h6 26.Kh2 Ng5 27.Nd2 e5 28.Qc5 
Qd8 29.Qb4 exd4 30.Bxd4 Bxd4 31.Nxd4 Nd7 32.Qd6 Qf6 33.Qxf6 Nxf6 34.Bg2 
Ne6 35.Ne2 Nc5 36.f4 Ne8 37.Kg1 Nc7 38.Kf2 Be6 39.Nd4 Kf8 40.Ke3 Ke7 
1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.29"]
[Round "12"]
[White "Tatai, Stefano"]
[Black "Donner, Jan"]
[Result "1/2-1/2"]
[ECO "B09"]
[EventDate "1969.07.15"]
[PlyCount "26"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.Bd3 Nc6 7.e5 dxe5 8.dxe5 
Nd5 9.Nxd5 Qxd5 10.Qe2 Bf5 11.Bxf5 gxf5 12.Be3 f6 13.exf6 Bxf6 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.29"]
[Round "12"]
[White "Vasiukov, Evgeny"]
[Black "Byrne, Robert"]
[Result "1/2-1/2"]
[ECO "B50"]
[EventDate "1969.07.15"]
[PlyCount "32"]

1.e4 c5 2.Nf3 d6 3.Nc3 a6 4.g3 Nc6 5.Bg2 g6 6.d4 cxd4 7.Nxd4 Bg7 8.Be3 Rb8
9.O-O Nf6 10.h3 O-O 11.Nd5 e6 12.Nxf6+ Bxf6 13.c3 Nxd4 14.cxd4 Bd7 15.Qd2 
Bc6 16.Rad1 Rc8 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.30"]
[Round "13"]
[White "Byrne, Robert"]
[Black "Darga, Klaus"]
[Result "1/2-1/2"]
[ECO "C95"]
[EventDate "1969.07.15"]
[PlyCount "57"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 
9.h3 Nb8 10.d4 Nbd7 11.c4 c6 12.Nc3 b4 13.Na4 c5 14.d5 Re8 15.Bc2 a5 16.b3
Nf8 17.Nb2 Ng6 18.Bd2 h6 19.a4 Nh7 20.Kh2 Rf8 21.Be3 f5 22.exf5 Bxf5 23.
Bxf5 Rxf5 24.Nd2 Nf4 25.Ne4 Qd7 26.Nd3 Raf8 27.Bxf4 exf4 28.f3 R8f7 29.Ra2
1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.30"]
[Round "13"]
[White "Damjanovic, Mato"]
[Black "Gheorghiu, Florin"]
[Result "1-0"]
[ECO "B07"]
[EventDate "1969.07.15"]
[PlyCount "79"]

1.e4 g6 2.d4 d6 3.Nc3 Nf6 4.f3 c6 5.Be3 b5 6.Qd2 Nbd7 7.Nh3 a6 8.Nf2 Bg7 
9.Be2 O-O 10.O-O Bb7 11.Nd3 Nb6 12.b3 Nfd7 13.a4 bxa4 14.Nxa4 Nxa4 15.Rxa4
Qc7 16.Qa5 Rfc8 17.Rd1 Bf6 18.Qxc7 Rxc7 19.Ra5 e5 20.dxe5 Nxe5 21.Nxe5 
Bxe5 22.Bd4 Bxd4+ 23.Rxd4 d5 24.exd5 cxd5 25.Bd3 Kf8 26.Kf2 Ke7 27.Ke3 Re8
28.Kd2 Rec8 29.Rda4 Rc6 30.Ra2 Ra8 31.Rxd5 Rxc2+ 32.Kxc2 Bxd5 33.Rxa6 Rc8+
34.Kb2 Rb8 35.Ra3 h5 36.Kc3 h4 37.h3 Kd6 38.b4 Ke5 39.Ra5 Rc8+ 40.Kd2 1-0

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.30"]
[Round "13"]
[White "Donner, Jan"]
[Black "Vasiukov, Evgeny"]
[Result "1/2-1/2"]
[ECO "A39"]
[EventDate "1969.07.15"]
[PlyCount "29"]

1.d4 Nf6 2.c4 g6 3.g3 c5 4.Nf3 cxd4 5.Nxd4 Bg7 6.Bg2 O-O 7.Nc3 Nc6 8.O-O 
Qa5 9.Nc2 Qh5 10.e4 d6 11.Qxh5 Nxh5 12.Bd2 Bd7 13.b3 Rfc8 14.Rac1 Nf6 15.
Rfd1 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.30"]
[Round "13"]
[White "Kavalek, Lubomir"]
[Black "Portisch, Lajos"]
[Result "0-1"]
[ECO "C93"]
[EventDate "1969.07.15"]
[PlyCount "106"]

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 h6 10.d4 Re8 11.Nbd2 Bf8 12.Nf1 Na5 13.Bc2 c5 14.b3 Nc6 15.Ng3 Bd7 
16.d5 Ne7 17.c4 Ng6 18.Be3 Nh7 19.Qd2 Nh4 20.Nxh4 Qxh4 21.Nf5 Bxf5 22.exf5
bxc4 23.f3 cxb3 24.axb3 Qe7 25.b4 Reb8 26.bxc5 dxc5 27.Be4 Ra7 28.Reb1 
Rxb1+ 29.Rxb1 Qc7 30.Qb2 Nf6 31.Qb8 Nd7 32.Qxc7 Rxc7 33.Ra1 Ra7 34.Ra5 Bd6
35.Bd3 Kf8 36.Rxa6 Rxa6 37.Bxa6 Ke7 38.Kf1 Bc7 39.Bb5 Bb6 40.Bxd7 Kxd7 41.
h4 f6 42.Kf2 Kd6 43.Kg3 h5 44.Kf2 Bd8 45.g4 hxg4 46.fxg4 Kxd5 47.Ke2 c4 
48.h5 Ke4 49.h6 gxh6 50.Bxh6 c3 51.Kd1 Kd3 52.Kc1 Be7 53.Kb1 e4 0-1

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.30"]
[Round "13"]
[White "Langeweg, Christian"]
[Black "Hartoch, Robert"]
[Result "1/2-1/2"]
[ECO "D53"]
[EventDate "1969.07.15"]
[PlyCount "126"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 h6 6.Bxf6 Bxf6 7.e3 c6 8.Qd2 Nd7
9.Rc1 O-O 10.Be2 a6 11.O-O b5 12.cxd5 cxd5 13.a4 b4 14.Na2 a5 15.Bb5 Ba6 
16.Bxa6 Rxa6 17.Qd3 Nb8 18.Rc5 Be7 19.Rc2 Rb6 20.Nc1 Qd7 21.Nb3 Qxa4 22.
Ra1 Qb5 23.Qxb5 Rxb5 24.Rxa5 Rb7 25.Kf1 f6 26.Ne1 Kf7 27.Nd3 Nd7 28.Rc6 
Rfb8 29.Ke2 Bd8 30.Raa6 Rb6 31.Nbc5 Nxc5 32.Nxc5 Rxa6 33.Rxa6 Be7 34.Ra7 
Rb6 35.Kd3 e5 36.Rd7 e4+ 37.Kc2 b3+ 38.Kc3 Rd6 39.Rb7 f5 40.Kxb3 Ke8 41.
Kc3 g5 42.b4 f4 43.Rb8+ Rd8 44.Rb7 f3 45.gxf3 exf3 46.h3 h5 47.Ra7 g4 48.
hxg4 hxg4 49.b5 Bh4 50.Nd3 g3 51.fxg3 Bxg3 52.Ra1 Rb8 53.Kb4 Bd6+ 54.Nc5 
Ke7 55.Rf1 Rf8 56.b6 Bg3 57.Kb5 Rf6 58.Na6 f2 59.b7 Rf8 60.Kb6 Ke6 61.Kc6 
Kf5 62.b8=Q Rxb8 63.Nxb8 Ke4 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.30"]
[Round "13"]
[White "Liberzon, Vladimir"]
[Black "Tatai, Stefano"]
[Result "1-0"]
[ECO "D41"]
[EventDate "1969.07.15"]
[PlyCount "93"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 d5 4.d4 c5 5.cxd5 Nxd5 6.e3 Nc6 7.Bc4 Be7 8.O-O 
O-O 9.Bxd5 exd5 10.dxc5 Bxc5 11.Qxd5 Qxd5 12.Nxd5 Bf5 13.b3 Rfd8 14.Nc3 
Nb4 15.Bb2 Nd3 16.Na4 Nxb2 17.Nxc5 b6 18.Na6 Bd3 19.Nc7 Rac8 20.Rfc1 Bc4 
21.Rc2 Rxc7 22.Rxb2 Ba6 23.Nd4 g6 24.h3 Rdc8 25.Rd2 Kf8 26.g4 Rc5 27.Kg2 
Ke7 28.Kg3 h5 29.Rad1 hxg4 30.hxg4 R8c7 31.Kf4 Bc8 32.g5 Bd7 33.f3 a5 34.
Rh1 Rc8 35.Rhh2 Bf5 36.e4 Bd7 37.Rc2 Rc3 38.Rxc3 Rxc3 39.Rc2 Rd3 40.Ke5 
Rd1 41.Rc7 a4 42.bxa4 Rg1 43.f4 Rg2 44.a5 bxa5 45.Ra7 Rd2 46.Rxa5 Rd1 47.
Nc2 1-0

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.30"]
[Round "13"]
[White "Ree, Hans"]
[Black "Barendregt, Johan"]
[Result "1-0"]
[ECO "A42"]
[EventDate "1969.07.15"]
[PlyCount "68"]

1.d4 d6 2.c4 g6 3.Nc3 Bg7 4.e4 c5 5.d5 e6 6.Nf3 Ne7 7.Be2 e5 8.a3 h6 9.b4 
Na6 10.O-O O-O 11.Rb1 f5 12.Ne1 b6 13.Nd3 g5 14.bxc5 Nxc5 15.Nxc5 bxc5 16.
Qa4 f4 17.Qd1 Ng6 18.Bg4 Nh4 19.Be6+ Kh8 20.Qg4 Kh7 21.Bd2 f3 22.g3 Ng6 
23.Bxc8 Rxc8 24.Rb7 Rc7 25.Rfb1 Rf6 26.Nd1 Qe7 27.Rb8 Qf7 28.Ba5 Rd7 29.
Bd8 Rxd8 30.Rxd8 Qc7 31.Rd7 Qa5 32.Ne3 Nf8 33.Rdb7 Kg8 34.Nf5 Rg6 1-0

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.30"]
[Round "13"]
[White "Stein, Leonid"]
[Black "Ivkov, Borislav"]
[Result "1/2-1/2"]
[ECO "B17"]
[EventDate "1969.07.15"]
[PlyCount "29"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Nf3 Ngf6 6.Nxf6+ Nxf6 7.Bc4 Bf5 8.
Ne5 e6 9.g4 Be4 10.f3 Bd5 11.Be2 b5 12.a4 Bd6 13.axb5 Bxe5 14.dxe5 Nxg4 
15.Bf4 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.18"]
[Round "14"]
[White "Barendregt, Johan"]
[Black "Stein, Leonid"]
[Result "0-1"]
[ECO "B53"]
[EventDate "1969.07.15"]
[PlyCount "52"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 Nf6 5.e5 Nc6 6.Bb5 Qa5+ 7.Nc3 Qxb5 8.
Nxb5 Nxd4 9.Nc7+ Kd7 10.Nxa8 Nxc2+ 11.Kd1 Nxa1 12.exf6 gxf6 13.Be3 b6 14.
Kd2 Bb7 15.Nxb6+ axb6 16.Rxa1 b5 17.Nd4 b4 18.Rc1 e5 19.Nb5 Bc6 20.Na7 
Bxg2 21.Nb5 d5 22.Rc7+ Ke6 23.f4 d4 24.Bf2 Bh6 25.Bg3 Rb8 26.Rc6+ Bxc6 0-1

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.18"]
[Round "14"]
[White "Donner, Jan"]
[Black "Liberzon, Vladimir"]
[Result "1/2-1/2"]
[ECO "D57"]
[EventDate "1969.07.15"]
[PlyCount "32"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 Ne4 8.Bxe7 
Qxe7 9.cxd5 Nxc3 10.bxc3 exd5 11.Qb3 c6 12.c4 Be6 13.Qc2 dxc4 14.Bxc4 Bxc4
15.Qxc4 Nd7 16.O-O c5 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.18"]
[Round "14"]
[White "Gheorghiu, Florin"]
[Black "Byrne, Robert"]
[Result "1/2-1/2"]
[ECO "B51"]
[EventDate "1969.07.15"]
[PlyCount "36"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7 4.d4 a6 5.Bxd7+ Bxd7 6.O-O cxd4 7.Qxd4 Nf6 8.
Nc3 e6 9.e5 dxe5 10.Nxe5 Be7 11.Rd1 Bc6 12.Nxc6 bxc6 13.Qc4 Qc7 14.Bf4 Qb7
15.Bd6 Bxd6 16.Rxd6 O-O 17.b3 Rfc8 18.Rad1 c5 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.18"]
[Round "14"]
[White "Hartoch, Robert"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[ECO "A21"]
[EventDate "1969.07.15"]
[PlyCount "93"]

1.c4 g6 2.g3 Bg7 3.Bg2 e5 4.Nc3 d6 5.e3 Nc6 6.Nge2 Nge7 7.Rb1 Be6 8.Nd5 
Qd7 9.b4 O-O 10.d3 Nd8 11.O-O c6 12.Nxe7+ Qxe7 13.Bd2 Qd7 14.Qc2 a6 15.Nc1
Bh3 16.Nb3 Bxg2 17.Kxg2 Ne6 18.Rbe1 f5 19.f4 Rae8 20.Bc3 g5 21.Kh1 Rf7 22.
Qb2 b5 23.Rd1 exf4 24.exf4 gxf4 25.gxf4 c5 26.Na5 Qd8 27.Qg2 Kh8 28.Be1 
Nd4 29.Nc6 Qa8 30.Nxd4 Qxg2+ 31.Kxg2 Bxd4 32.bxc5 dxc5 33.cxb5 axb5 34.Rd2
Rfe7 35.Bf2 Re2 36.Rxe2 Rxe2 37.Kg3 Bxf2+ 38.Rxf2 Re3+ 39.Rf3 Re2 40.Rf2 
Re3+ 41.Kh4 Rxd3 42.Kg5 Kg7 43.Kxf5 c4 44.Rb2 Rd5+ 45.Ke6 Rc5 46.Rg2+ Kf8 
47.a3 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.18"]
[Round "14"]
[White "Ivkov, Borislav"]
[Black "Kavalek, Lubomir"]
[Result "1/2-1/2"]
[ECO "D13"]
[EventDate "1969.07.15"]
[PlyCount "30"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.cxd5 cxd5 5.Nc3 Nc6 6.Bf4 e6 7.e3 Bd6 8.Bxd6 
Qxd6 9.Bd3 O-O 10.O-O Bd7 11.Rc1 Rfd8 12.Qe2 Rac8 13.Rfd1 Be8 14.h3 Qe7 
15.Bb1 Nd7 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.18"]
[Round "14"]
[White "Portisch, Lajos"]
[Black "Damjanovic, Mato"]
[Result "1/2-1/2"]
[ECO "D13"]
[EventDate "1969.07.15"]
[PlyCount "25"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.cxd5 cxd5 5.Nc3 Nc6 6.Bf4 e6 7.e3 Bd6 8.Bg3 
O-O 9.Bd3 b6 10.O-O Bxg3 11.hxg3 Bb7 12.Rc1 Rc8 13.Qe2 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.18"]
[Round "14"]
[White "Tatai, Stefano"]
[Black "Langeweg, Christian"]
[Result "1/2-1/2"]
[ECO "B44"]
[EventDate "1969.07.15"]
[PlyCount "46"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nb5 d6 6.c4 Nf6 7.N1c3 a6 8.Na3 
Be7 9.Be2 O-O 10.O-O b6 11.Be3 Bb7 12.Qd2 Re8 13.Rfd1 Rc8 14.Rac1 Nd7 15.
Nab1 Nc5 16.f3 Qc7 17.Bf1 Qb8 18.Qf2 Ba8 19.Rc2 Qb7 20.Kh1 Ne5 21.Rcd2 Rc7
22.Be2 Rec8 23.Qf1 Rb8 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.08.18"]
[Round "14"]
[White "Vasiukov, Evgeny"]
[Black "Darga, Klaus"]
[Result "1/2-1/2"]
[ECO "C94"]
[EventDate "1969.07.15"]
[PlyCount "44"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 
9.h3 Nb8 10.d3 c5 11.Nbd2 Nc6 12.Nf1 Be6 13.Bc2 Nd7 14.Ng3 Re8 15.Be3 Rc8 
16.a4 b4 17.Nf5 Bxf5 18.exf5 d5 19.Bb3 bxc3 20.Bxd5 Nb4 21.Bc4 cxb2 22.Rb1
Nb6 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.09.02"]
[Round "15"]
[White "Byrne, Robert"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[ECO "C95"]
[EventDate "1969.07.15"]
[PlyCount "33"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 
9.h3 Nb8 10.d4 Nbd7 11.Nh4 g6 12.Bh6 Re8 13.f4 c5 14.Nf3 c4 15.Bc2 Bb7 16.
Nbd2 Bf8 17.Bxf8 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.09.02"]
[Round "15"]
[White "Damjanovic, Mato"]
[Black "Ivkov, Borislav"]
[Result "1/2-1/2"]
[ECO "D13"]
[EventDate "1969.07.15"]
[PlyCount "32"]

1.d4 d5 2.c4 c6 3.cxd5 cxd5 4.Nc3 Nf6 5.Bf4 Nc6 6.e3 e6 7.Nf3 Bd6 8.Bxd6 
Qxd6 9.Bd3 O-O 10.O-O Bd7 11.Rc1 Rac8 12.h3 Rfd8 13.Qd2 Be8 14.Rfd1 a6 15.
Qe1 Qb4 16.Qd2 Qd6 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.09.02"]
[Round "15"]
[White "Darga, Klaus"]
[Black "Gheorghiu, Florin"]
[Result "1/2-1/2"]
[ECO "B17"]
[EventDate "1969.07.15"]
[PlyCount "36"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Bc4 Ngf6 6.Nxf6+ Nxf6 7.Nf3 Bf5 8.
O-O e6 9.Ne5 Bd6 10.Qe2 Qc7 11.Bf4 O-O 12.Rad1 Nd5 13.Bg3 Rad8 14.c3 Rfe8 
15.Bd3 Bxd3 16.Nxd3 Nf4 17.Bxf4 Bxf4 18.Nxf4 Qxf4 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.09.02"]
[Round "15"]
[White "Kavalek, Lubomir"]
[Black "Barendregt, Johan"]
[Result "1-0"]
[ECO "A42"]
[EventDate "1969.07.15"]
[PlyCount "31"]

1.c4 g6 2.Nc3 Bg7 3.d4 d6 4.e4 c5 5.d5 Bxc3+ 6.bxc3 e5 7.Bd3 h5 8.f4 Qf6 
9.fxe5 Qxe5 10.Qc2 Nd7 11.Nf3 Qe7 12.O-O Nh6 13.h3 Ne5 14.Nxe5 dxe5 15.Be3
f6 16.Qf2 1-0

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.09.02"]
[Round "15"]
[White "Langeweg, Christian"]
[Black "Donner, Jan"]
[Result "0-1"]
[ECO "B08"]
[EventDate "1969.07.15"]
[PlyCount "126"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.Be2 O-O 6.O-O c6 7.a4 Qc7 8.a5 e5 9.
dxe5 dxe5 10.Be3 Nh5 11.g3 Bf6 12.Nd2 Ng7 13.Nc4 Na6 14.Qd6 Ne6 15.Na4 Rd8
16.Qxc7 Naxc7 17.c3 Nb5 18.Rfd1 Rxd1+ 19.Rxd1 Kf8 20.b4 Ke8 21.Rc1 Bg7 22.
Nab2 f6 23.Nd3 Bf8 24.f4 exf4 25.gxf4 Nec7 26.Nd2 f5 27.c4 Nd6 28.e5 Nf7 
29.Bf3 a6 30.Bb6 Ne6 31.Nb3 Bh6 32.Be3 g5 33.fxg5 Nexg5 34.Kg2 Nxf3 35.
Kxf3 Bg7 36.Bf4 Nd8 37.Ndc5 Bf8 38.Rg1 Ne6 39.Nd3 Bd7 40.Be3 Kf7 41.Ndc5 
Nxc5 42.Bxc5 Bh6 43.Nd4 Re8 44.Re1 Bd2 45.Rd1 Bg5 46.e6+ Bxe6 47.Nxe6 Kxe6
48.Rd6+ Ke5 49.Rd7 Rd8 50.Rxb7 Rd3+ 51.Ke2 Rd2+ 52.Ke1 Ra2 53.Rxh7 Ke4 54.
h4 Bd2+ 55.Kd1 f4 56.h5 f3 57.h6 Bg5 58.Rc7 Bxh6 59.Rxc6 Bf4 60.Rg6 f2 61.
Bxf2 Rxf2 62.Rxa6 Kd3 63.Ke1 Rf3 0-1

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.09.02"]
[Round "15"]
[White "Liberzon, Vladimir"]
[Black "Vasiukov, Evgeny"]
[Result "1/2-1/2"]
[ECO "B52"]
[EventDate "1969.07.15"]
[PlyCount "25"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.O-O Nc6 6.c3 Nf6 7.Re1 e6 8.d4 
cxd4 9.cxd4 d5 10.e5 Ne4 11.Nbd2 Nxd2 12.Bxd2 Be7 13.Bg5 1/2-1/2

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.09.02"]
[Round "15"]
[White "Ree, Hans"]
[Black "Tatai, Stefano"]
[Result "0-1"]
[ECO "A15"]
[EventDate "1969.07.15"]
[PlyCount "92"]

1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 O-O 5.g3 c6 6.Bg2 a5 7.b5 d5 8.O-O dxc4 
9.bxc6 Nxc6 10.Na3 Be6 11.Ng5 Bd7 12.Nxc4 b5 13.Na3 Rb8 14.d4 e6 15.e4 Qb6
16.Nc2 h6 17.Nh3 Rfd8 18.Nf4 Ne8 19.Rb1 Ne7 20.Ne3 b4 21.d5 Bb5 22.Re1 
Rbc8 23.e5 exd5 24.Bd4 Qc6 25.h4 Bc4 26.Rb2 Qb5 27.e6 Nc6 28.exf7+ Kxf7 
29.Bxg7 Nxg7 30.Qg4 Ne5 31.Qd1 Nd3 32.Nxd3 Bxd3 33.Qf3+ Kg8 34.Nxd5 Rf8 
35.Qe3 Rce8 36.Ne7+ Rxe7 37.Qxe7 Re8 38.Qc7 Rxe1+ 39.Kh2 Bf5 40.Rd2 Qe5 
41.Rd8+ Kh7 42.Qf7 Be6 43.Qf8 g5 44.hxg5 Qxg5 45.Qh8+ Kg6 46.Bf3 Qf5 0-1

[Event "9th IBM tournament"]
[Site "Amsterdam NED"]
[Date "1969.09.02"]
[Round "15"]
[White "Stein, Leonid"]
[Black "Hartoch, Robert"]
[Result "1-0"]
[ECO "A07"]
[EventDate "1969.07.15"]
[PlyCount "87"]

1.Nf3 d5 2.g3 c6 3.Bg2 g6 4.d3 Bg7 5.Nbd2 e5 6.e4 Ne7 7.O-O O-O 8.b4 Na6 
9.a3 Nc7 10.Bb2 d4 11.c3 Bg4 12.Qc2 Ne6 13.cxd4 Bxf3 14.Nxf3 Nxd4 15.Nxd4 
exd4 16.f4 Qd7 17.Qc5 b6 18.Qc4 Rac8 19.f5 Qd6 20.Rae1 g5 21.Bf3 Be5 22.
Re2 b5 23.Qc1 f6 24.Rc2 Rc7 25.Rc5 Nc8 26.Kg2 Nb6 27.Bd1 Nd7 28.Bb3+ Kg7 
29.Rc2 Ra8 30.Qd1 Qe7 31.Qd2 Rh8 32.Rfc1 Nb8 33.Be6 h5 34.h4 g4 35.Rc5 Qd6
36.Rxe5 Qxe5 37.Rc5 Qd6 38.e5 Qd8 39.exf6+ Kf8 40.Qf4 Na6 41.Bxd4 Nxc5 42.
Bxc5+ Ke8 43.Qe5 Rhh7 44.Bd7+ 1-0

