[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1975.??.??"]
[Round "7"]
[White "Portisch, Lajos"]
[Black "Donner, Jan Hein"]
[Result "1-0"]
[WhiteElo "2635"]
[BlackElo "2485"]
[ECO "E88"]

1.c4 Nf6 2.Nc3 g6 3.d4 Bg7 4.e4 O-O 5.Be3 d6 6.f3 e5 7.d5 c6 8.Bd3 cxd5 9.cxd5 Ne8
10.Qd2 f5 11.exf5 gxf5 12.Nge2 Nd7 13.O-O Nc5 14.Bc2 a5 15.f4 exf4 16.Nxf4 Be5
17.Rae1 Qf6 18.Nh3 b6 19.Bg5 Qg6 20.Bf4 Bf6 21.Rf3 Kh8 22.Rg3 Qh5 23.Bd1 Qh4
24.Ng5 Ne4 25.Ngxe4 fxe4 26.Nxe4  1-0

