[Event "Clare Benedict Cup"]
[Site "Brunnen"]
[Date "1966.??.??"]
[Round "1"]
[White "Donner, Jan Hein"]
[Black "Unzicker, Wolfgang"]
[Result "1/2-1/2"]
[WhiteElo ""]
[BlackElo ""]
[ECO "E53"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.a3 cxd4 8.exd4 Bxc3+
9.bxc3 dxc4 10.Bxc4 Qe7 11.Qd3 Nbd7 12.O-O e5 13.Nxe5 Nxe5 14.dxe5 Qxe5 15.f4 Qc7
16.Be3 Bf5 17.Qxf5 Qxc4 18.Bd4 Nd5 19.Rf3 f6 20.Qe6+ Kh8 21.Re1 h6 22.Qd7 b5
23.Rg3 Rg8 24.Rg6 a5 25.Re5 Nxf4 26.Rc5 Qe6 27.Qxe6 Nxe6 28.Rxb5 Rgb8 29.Rb6 Rxb6
30.Bxb6 Nf4 31.Rg4 g5 32.Kf2 a4 33.Bd4  1/2-1/2

