[Event "Olympiad-23"]
[Site "Buenos Aires"]
[Date "1978.11.10"]
[Round "14"]
[White "De Vries, Gerit Jan"]
[Black "Apol, Luitjen"]
[Result "1/2-1/2"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Bb3 Be7 8. O-O O-O 9. Kh1 a6 10. Be3 Qc7 11. f4 b5 12. a3 Na5 13. f5 Nc4 14. Bxc4 Qxc4 15. Qd3 Bd7 16. a4 Qxd3 17. cxd3 b4 18. Nce2 a5 19. b3 Ng4 20. Bg1 exf5 21. Nxf5 Rfe8 22. Ned4 Bf8 23. Rac1 g6 24. Ne3 Nxe3 25. Bxe3 d5 26. Rc7 Be6 27. Nxe6 fxe6 28. Rff7 dxe4 29. dxe4 Red8 30. Kg1 Rac8 31. Rfd7 Rxc7 32. Rxd8 Kf7 33. Bd2 Be7 34. Rd3 Rc2 35. Kf1 Bf6 36. Ke1 Rc5 37. Ke2 Ke7 38. h3 Bg5 39. Be1 Rc2+ 40. Kf3 Bf6 41. Bf2 Bc3 42. Bb6 Rb2 43. Bxa5 Rxb3 44. Bxb4+ Rxb4 45. Rxc3 Rxa4 46. Rc7+ Kf6 47. Rxh7 Ra3+ 48. Kf2 Ra2+ 49. Kg3 Ra3+ 1/2-1/2