[Event "IBM"]
[Site "Amsterdam"]
[Date "1968.??.??"]
[Round "8"]
[White "Ivkov, Borislav"]
[Black "Jongsma, Alexander"]
[Result "1/2-1/2"]
[WhiteElo ""]
[BlackElo ""]
[ECO "A23"]

1.c4 e5 2.Nc3 Nf6 3.g3 c6 4.Nf3 e4 5.Nd4 Qb6 6.Nb3 a5 7.e3 d5 8.h3 Nbd7 9.d4 exd3
10.cxd5 a4 11.Nd2 Nc5 12.dxc6 Be7 13.Bg2 bxc6 14.Nc4 Qc7  1/2-1/2

