[Event "IBM"]
[Site "Amsterdam"]
[Date "1975.??.??"]
[Round "11"]
[White "Timman, Jan H"]
[Black "Hamann, Svend"]
[Result "1-0"]
[WhiteElo "2510"]
[BlackElo "2485"]
[ECO "B99"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7 8.Qf3 Qc7
9.O-O-O Nbd7 10.Bd3 h6 11.Qh3 Nb6 12.f5 e5 13.Nb3 Bd7 14.Be3 Nc4 15.Bxc4 Qxc4
16.Nd2 Qc6 17.Bg5 Rc8 18.Bxf6 Bxf6 19.Qd3 O-O 20.Kb1 b5 21.Nf1 b4 22.Nd5 Qb7
23.Nxf6+ gxf6 24.Ng3 Ba4 25.b3 Bb5 26.Qd2 Qc6 27.Nh5 d5 28.exd5 Qd6 29.Qxh6  1-0

