[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1980.01.31"]
[Round "13"]
[White "Ligterink, Gert"]
[Black "Biyiasas, Peter"]
[Result "0-1"]
[WhiteElo "2455"]
[BlackElo "2485"]
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 Nbd7 7. Qd2 e5 8. Nf3 Qe8 9. O-O exd4 10. Nxd4 Nxe4 11. Nxe4 Qxe4 12. Nb5 Qc6 13. Rac1 Nc5 14. Bf3 Qd7 15. Rfe1 Ne6 16. Bh4 c6 17. Nxd6 Nd4 18. Qf4 Ne6 19. Qd2 Nd4 20. c5 Nxf3+ 21. gxf3 Qh3 22. Qf4 Be6 23. b3 Bd5 24. Re3 f6 25. Qg3 Qxg3+ 26. Bxg3 Bh6 27. f4 b6 28. Re7 bxc5 29. Rce1 a5 30. f5 a4 31. fxg6 hxg6 32. h4 Bd2 33. Rb1 axb3 34. axb3 Bc3 35. Bf4 Bd4 36. Rbe1 Ra2 37. Be3 f5 38. Bxd4 cxd4 39. Rd1 Rd8 40. Nb7 Ra7 41. Rxd4 Rb8 42. Rb4 Ra1+ 43. Kh2 c5 44. Rb6 f4 0-1