[Event "IBM"]
[Site "Amsterdam"]
[Date "1969.??.??"]
[Round "5"]
[White "Ree, Hans"]
[Black "Stein, Leonid"]
[Result "1-0"]
[WhiteElo ""]
[BlackElo ""]
[ECO "E80"]

1.c4 g6 2.Nc3 Bg7 3.d4 Nf6 4.e4 d6 5.f3 b6 6.Bd3 e5 7.d5 Nh5 8.Nge2 O-O 9.Be3 Nd7
10.Qd2 a5 11.Bc2 Nc5 12.g4 Nf4 13.Nxf4 exf4 14.Bxf4 Ba6 15.h4 Bxc4 16.Bh6 Bxh6
17.Qxh6 b5 18.h5 Qe7 19.Qe3 b4 20.Nd1 c6 21.dxc6 Rac8 22.Qd4 Bb5 23.Ne3 Bxc6
24.Rd1 Ne6 25.Qd2 Qf6 26.hxg6 hxg6 27.Kf2 Rfd8 28.Nf5 gxf5 29.gxf5 Bd7 30.Rdg1+ Ng7
31.Bb3 a4 32.Bd5 b3 33.axb3 axb3 34.Bxb3 Kf8 35.Rh8+ Ke7 36.Rh6 Ne8 37.Rxf6 Nxf6
38.Rg7 Be8 39.Qd4 Rc5 40.f4 Nh5  1-0

