[Event "IBM"]
[Site "Amsterdam"]
[Date "1971.??.??"]
[Round "6"]
[White "Evans, Larry Melvyn"]
[Black "Donner, Jan Hein"]
[Result "0-1"]
[WhiteElo "2550"]
[BlackElo "2500"]
[ECO "B10"]

1.e4 c6 2.d3 d5 3.Nd2 g6 4.g3 Bg7 5.Bg2 e5 6.Ngf3 Ne7 7.O-O O-O 8.c3 Nd7
9.Qc2 h6 10.a4 a5 11.b3 b6 12.Ba3 Ba6 13.Rfe1 Re8 14.Rad1 c5 15.exd5 Nxd5
16.Nc4 Nxc3 17.Qxc3 e4 18.d4 exf3 19.Rxe8+ Qxe8 20.Qxf3 Rb8 21.Nd6 Qe6 22.dxc5 Be2
23.Qd5 Bxd1 24.Qxd1 Nxc5 25.Bd5 Qf6 26.Nxf7 Kh7 27.Bxc5 bxc5 28.Qg4 Rb4 29.Qc8 Rd4
30.Qe6 Qxe6 31.Bxe6 Rd1+ 32.Kg2 Rd2 33.h4 Bd4 34.Bc4 Bxf2 35.Kf3 Bd4 36.Nd6 Rf2+
37.Ke4 Bc3 38.Kd5 Rf3 39.Ne4 Bb4 40.g4 Rh3 41.Nxc5 Rxh4 42.Nd3 Bd2 43.Ne5 Bc3
44.Be2 Kg7 45.Nc6 Rh2 46.Bf3 Rf2 47.Ke4 Rb2 48.Bd1 Rd2 49.Bf3 Kf6 50.Na7 Rd4+
51.Ke3 Rb4 52.Nb5 Be5 53.Bd1 Kg5 54.Na3 Rd4 55.Bf3 Rd8 56.Nc4 Bc3 57.Kf2 Kf4
58.Be2 Ke4 59.Kg2 Bb4 60.Bf3+ Kd4 61.Bc6 g5 62.Bb5 Kc3 63.Kf3 Rd4 64.Ne3 Kxb3
65.Kg3 Bd6+  0-1

