[Event "IBM"]
[Site "Amsterdam"]
[Date "1972.??.??"]
[Round "?"]
[White "Hartoch, Robert G"]
[Black "Browne, Walter S"]
[Result "1/2-1/2"]
[WhiteElo "2400"]
[BlackElo "2500"]
[ECO "A73"]

1.d4 c5 2.d5 Nf6 3.c4 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O
9.O-O Bg4 10.Bf4 a6 11.h3 Bxf3 12.Bxf3 Ne8 13.Qd2 Nd7 14.Be2 b5 15.a4 b4
16.Nd1 Qe7 17.f3 Nef6 18.g4 Ne5 19.Ne3 Rfe8 20.Rae1 Nfd7 21.Bg3 Nf6 22.Bf4 a5
23.Qc2 Nfd7 24.b3 Nb6 25.Bb5 Rec8 26.Qe2 Ra7 27.Rc1 Rac7 28.Bg3 Ned7 29.Kg2 Bd4
30.Bxd7 Qxd7 31.Nc4 Nxc4 32.Qxc4 Ra7 33.Rce1 Re8 34.f4 f6 35.g5 f5 36.e5 Raa8
37.e6 Qb7  1/2-1/2

