[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1971.??.??"]
[Round "9"]
[White "Ivkov, Borislav"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2570"]
[BlackElo "2420"]
[ECO "D97"]

1.Nf3 g6 2.d4 Bg7 3.c4 Nf6 4.Nc3 d5 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 a6 8.Bf4 b5
9.Qxc7 Qxc7 10.Bxc7 Bb7 11.e5 Nd5 12.Nxd5 Bxd5 13.Be2 Rc8 14.Ba5 Nc6 15.Bc3 b4
16.Bd2 f6 17.O-O  1/2-1/2

