[Event "IBM"]
[Site "Amsterdam"]
[Date "1972.??.??"]
[Round "?"]
[White "Kortschnoj, Viktor"]
[Black "Hartoch, Robert G"]
[Result "1-0"]
[WhiteElo "2670"]
[BlackElo "2400"]
[ECO "A56"]

1.d4 Nf6 2.c4 c5 3.d5 g6 4.g3 e6 5.dxe6 fxe6 6.Nc3 Bg7 7.Bg2 O-O 8.Bf4 Ne8
9.Qd2 Nc6 10.h4 Ne5 11.Bxe5 Bxe5 12.Nf3 Bxc3 13.Qxc3 Qf6 14.Qd2 Rb8 15.a4 a6
16.O-O b5 17.cxb5 axb5 18.a5 d5 19.b4 c4 20.e4 Nc7 21.e5 Qe7 22.Nd4 Bd7 23.f4 Na6
24.Rab1 c3 25.Qxc3 Rfc8 26.Qd2 Rc4 27.Nc2 Rbc8 28.Rb2 Be8 29.Kh2 h5 30.Rf2 d4
31.Bf1 d3 32.Qxd3 Qa7 33.Rd2 Qf7 34.Qe3 Rc3 35.Qf2 Bc6 36.Nd4 Bd5 37.Bg2 Bc4
38.Rbc2 Ra3 39.Bh3 Re8 40.Nc6 Bd5 41.Rxd5 exd5 42.Qb6 g5 43.hxg5 h4 44.Qxa6 hxg3+
45.Kg2 Qxf4 46.Ne7+  1-0

