[Event "IBM"]
[Site "Amsterdam"]
[Date "1972.??.??"]
[Round "?"]
[White "Hartoch, Robert G"]
[Black "Polugaevsky, Lev"]
[Result "0-1"]
[WhiteElo "2400"]
[BlackElo "2640"]
[ECO "B20"]

1.g3 c5 2.Bg2 g6 3.e4 Bg7 4.Ne2 Nc6 5.O-O d6 6.d3 e5 7.c4 Nge7 8.Nbc3 Rb8
9.f4 O-O 10.Be3 exf4 11.gxf4 f5 12.Qd2 Nd4 13.Rae1 Nec6 14.Nd5 b5 15.cxb5 Rxb5
16.Nec3 Rb8 17.Kh1 Ba6 18.Bxd4 Nxd4 19.Ne3 Kh8 20.exf5 Nxf5 21.Nxf5 Rxf5
22.Be4 Rf8 23.Qg2 Qh4 24.Re3 Rxf4 25.Rg1 Rf2 26.Qh3 Qxh3 27.Rxh3 Bc8 28.Nd1 Rf4
29.Rhg3 Bxb2 30.Ne3 Bd4 31.Nd5 Bxg1 32.Nxf4 Bd4 33.Rf3 Rb1+  0-1

