[Event "IBM"]
[Site "Amsterdam"]
[Date "1976.??.??"]
[Round "6"]
[White "Kortschnoj, Viktor"]
[Black "Donner, Jan Hein"]
[Result "1-0"]
[WhiteElo "2670"]
[BlackElo "2475"]
[ECO "A53"]

1.e4 d6 2.d4 Nf6 3.f3 e5 4.Ne2 Be7 5.c4 O-O 6.Nbc3 c6 7.Be3 a6 8.d5 cxd5
9.cxd5 Ne8 10.Qd2 Nd7 11.Ng3 g6 12.Be2 Ng7 13.O-O b5 14.b4 f5 15.exf5 gxf5
16.f4 Bf6 17.Rad1 exf4 18.Bxf4 Ne5 19.Bh6 Ng4 20.Bxg4 fxg4 21.Nce4 Be5 22.Rxf8+ Qxf8
23.Rf1 Qe7 24.Bf4 Bxf4 25.Qxf4 Bd7 26.Nf6+  1-0

