[Event "IBM"]
[Site "Amsterdam"]
[Date "1969.??.??"]
[Round "13"]
[White "Kavalek, Lubomir"]
[Black "Portisch, Lajos"]
[Result "0-1"]
[WhiteElo ""]
[BlackElo ""]
[ECO "C93"]

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

