[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1977.01.20"]
[Round "6"]
[White "Ligterink, Gert"]
[Black "Olafsson, Fridrik"]
[Result "1/2-1/2"]
[WhiteElo "2430"]

1. e4 c5 2. Nf3 a6 3. c4 e6 4. Nc3 Nc6 5. d4 cxd4 6. Nxd4 Qc7 7. Be2 Nf6 8. O-O Bb4 9. Bg5 Qd6 10. Nxc6 Qxd1 11. Nxd1 dxc6 12. e5 Ne4 13. Bf4 f6 14. exf6 gxf6 15. a3 Bd2 16. Bxd2 Nxd2 17. Re1 Nb3 18. Rb1 a5 1/2-1/2