[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1969.??.??"]
[Round "5"]
[White "Donner, Jan Hein"]
[Black "Portisch, Lajos"]
[Result "0-1"]
[WhiteElo ""]
[BlackElo ""]
[ECO "E92"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Nf3 e5 7.Be3 Qe7 8.d5 Na6
9.Nd2 Nd7 10.O-O f5 11.f3 f4 12.Bf2 c5 13.dxc6 bxc6 14.a3 Nac5 15.b4 Ne6
16.Nb3 c5 17.Nd5 Qd8 18.Qd2 Nd4 19.Nxd4 exd4 20.Nxf4 Bh6 21.g3 Ne5 22.Be1 d3
23.Bd1 Bh3 24.Rf2 Rxf4 25.gxf4 Qh4 26.fxe5 Bxd2 27.Bxd2 dxe5 28.Be3 Rc8 29.bxc5 Rb8
30.Ba4 Qf6 31.c6 Qd6 32.Bb5 a6 33.c5 Qe6 34.Bxa6 Qxc6 35.Bxd3 Kg7 36.a4 Rb3
37.Rd1 Rc3 38.a5 Qa4 39.Rfd2 Qxa5 40.Kf2 Be6 41.Kg3 Qa3 42.Bf2 g5 43.Be2 Qb4
44.Kg2 Kf7 45.Bd3 h5 46.Rb1 Rb3 47.Rdd1 Rxb1 48.Rxb1 Qc3 49.Be2 Qc2 50.Re1 h4
51.Be3 Bc4 52.Kf2 g4 53.fxg4 Bb5 54.Bg5 h3 55.Be3 Bc6 56.Rg1 Bb5 57.Re1 Bc6
58.Rg1 Qxe4 59.Bd1 Kg7 60.Be2 Qd5 61.Ke1 Qa2 62.Kf1 Qf7+ 63.Ke1 Bg2 64.Bd2 e4
65.Bc3+ Kg6 66.Be5 Qd5  0-1

