[Event "Leiden"]
[Site "Leiden"]
[Date "1970.??.??"]
[Round "1"]
[White "Botvinnik, Mikhail"]
[Black "Donner, Jan Hein"]
[Result "1/2-1/2"]
[WhiteElo ""]
[BlackElo ""]
[ECO "A08"]

1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.d3 c5 6.e4 Nc6 7.Nbd2 d5 8.Re1 b6
9.c3 dxe4 10.dxe4 Ng4 11.Bf1 Nge5 12.Qc2 Bb7 13.Nxe5 Nxe5 14.f4 Nd7 15.Bg2 Qc7
16.Nf1 Rad8 17.Be3 c4 18.Rad1 Nc5 19.Bxc5 Qxc5+ 20.Qf2 Qxf2+ 21.Kxf2 e5 22.Ne3 b5
23.f5 Rfe8 24.h4 Bf6 25.Ke2 Be7 26.Rf1 Kg7 27.Rxd8 Rxd8 28.Nd5 Bxd5 29.exd5 Rb8
30.Be4 Rb6 31.Kd2 a5 32.b3 a4 33.bxc4 bxc4 34.Rb1 Rxb1 35.Bxb1 h5 36.fxg6 fxg6
37.Bc2 a3 38.Ke2 Kf6 39.Kf3 Bd6 40.Ke4 Bc7 41.Bd1 Ba5  1/2-1/2

