[Event "Wageningen Zonal"]
[Site "Wageningen NED"]
[Date "1957.10.27"]
[EventDate "1957.10.27"]
[Round "1"]
[Result "1-0"]
[White "Jan Hein Donner"]
[Black "Constant Orbaan"]
[ECO "B45"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "81"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Ndb5 Bb4
7.a3 Bxc3+ 8.Nxc3 d5 9.exd5 exd5 10.Bd3 O-O 11.O-O Bg4 12.f3
Be6 13.Bg5 Qb6+ 14.Kh1 Nd7 15.f4 f6 16.Qh5 f5 17.Qf3 Qc5 18.b4
Qd4 19.Nb5 Qb6 20.Rae1 Bf7 21.Nc3 Nd4 22.Qf2 Ne6 23.Nxd5 Qxf2
24.Rxf2 Nxg5 25.Ne7+ Kh8 26.Bxf5 Be8 27.Bxd7 Bxd7 28.Rd2 Nf3
29.gxf3 Bh3 30.Re4 g5 31.Kg1 Rxf4 32.Rxf4 gxf4 33.Kf2 Re8
34.Nd5 Rd8 35.Ke1 Rf8 36.Rd4 Rd8 37.c3 Re8+ 38.Kf2 a5 39.Nxf4
axb4 40.Nxh3 bxa3 41.Ra4 1-0