[Event "IBM"]
[Site "Amsterdam"]
[Date "1967.??.??"]
[Round "8"]
[White "Portisch, Lajos"]
[Black "Kotov, Alexander"]
[Result "1-0"]
[WhiteElo ""]
[BlackElo ""]
[ECO "A42"]

1.d4 d6 2.c4 g6 3.Nc3 Bg7 4.e4 Nc6 5.Be3 e5 6.d5 Nb8 7.Bd3 c5 8.dxc6 Nxc6
9.Nge2 Nf6 10.f3 Be6 11.O-O O-O 12.Qd2 Ne8 13.Ng3 Nc7 14.Rfd1 a6 15.Bf1 Nd4
16.Nge2 Bxc4 17.Nxd4 Bxf1 18.Rxf1 exd4 19.Bxd4 Bxd4+ 20.Qxd4 Nb5 21.Nxb5 axb5
22.Rfd1 Qg5 23.Qxd6 Rfd8 24.Qb6 Rxd1+ 25.Rxd1 Rxa2 26.Qd8+ Qxd8 27.Rxd8+ Kg7
28.Rd2 Ra1+ 29.Kf2 Rc1 30.Kg3 Rb1 31.Kf4 b4 32.g3 b3 33.Ke5 h5 34.f4 Rc1
35.Kd4 b5 36.Rd3 Rc2 37.Rxb3 Rxh2 38.Ke3 h4 39.Kf3 h3 40.Kg4 Rh1 41.Rxb5 h2
42.Kh3 Re1 43.Kxh2 Rxe4 44.Kg2 Re3 45.Kf2 Rd3 46.g4 Kh6 47.Rb6 Rd5 48.Ke3 f5
49.gxf5 Rxf5 50.b4 Rf8 51.Rd6 Rc8 52.Rd4 Rb8 53.Kd3 Kh5 54.Kc4 Rc8+ 55.Kd5 Rc1
56.b5 Rb1 57.Kc5 Kg4 58.b6  1-0

