[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1973.01.19"]
[Round "5"]
[White "Ribli, Zoltan"]
[Black "Donner, Jan Hein"]
[Result "1-0"]

1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 Be7 5. O-O O-O 6. d4 b6 7. cxd5 exd5 8. Nc3 Bb7 9. b3 Ne4 10. Bb2 Nxc3 11. Bxc3 Nd7 12. Rc1 Nf6 13. Bb2 Bd6 14. Qc2 Ne4 15. Ne5 c5 16. dxc5 Bxc5 17. Nd3 Bd6 18. Rfd1 Qg5 19. Qb1 h5 20. Qa1 Rfe8 21. Bd4 h4 22. Be3 Qh5 23. Bf4 Be7 24. Bf3 Qf5 25. Qe5 Qxe5 26. Bxe5 hxg3 27. hxg3 Rac8 28. Rxc8 Rxc8 29. Nf4 Rd8 30. Rc1 Bc5 31. Nd3 Rc8 32. Rd1 Be7 33. Nf4 Rd8 34. e3 g5 35. Nh5 f6 36. Bb2 Kf7 37. g4 Bc8 38. Kg2 f5 39. gxf5 Bxf5 40. Ng3 Bg6 41. Be5 Bf6 42. Bc7 Rc8 43. Rxd5 Nxf2 44. Rd7+ Ke6 45. Rd6+ Ke7 46. Rc6 Nd3 47. Bg4 Ra8 48. Bd6+ Kf7 49. Rc7+ Kg8 50. Bf5 Bxf5 51. Nxf5 a5 52. Kf3 Re8 53. Kg4 Re6 54. Nh6+ Kh8 55. Kf5 1-0