[Event "Zuerich"]
[Site "Zuerich"]
[Date "1959.05.19"]
[Round "1"]
[White "Olafsson, Fridrik"]
[Black "Keller, Dieter"]
[Result "1-0"]

1. c4 Nf6 2. Nc3 e5 3. g3 Bc5 4. Bg2 O-O 5. e3 c6 6. Nge2 Bb6 7. d4 d6 8. O-O Re8 9. b3 Nbd7 10. Ba3 Nf8 11. d5 c5 12. e4 Ba5 13. Bc1 Nh5 14. Bd2 Bg4 15. f3 Bd7 16. Nc1 Nf6 17. Nd3 a6 18. Qc2 h5 19. h4 Qc8 20. Rae1 Ng6 21. Re2 b5 22. Bc1 bxc4 23. bxc4 Rb8 24. Nd1 Qb7 25. Bb2 Bd8 26. Ne3 Qc8 27. Bc3 a5 28. Nf2 a4 29. Nf5 Qa6 30. Qd3 Ne7 31. Ne3 Nc8 32. f4 Nh7 33. fxe5 dxe5 34. Bh3 Bxh3 35. Nxh3 Nd6 36. Ref2 Ba5 37. Ba1 Rb7 38. Rc2 Nf6 39. Ng5 Nh7 40. Nxh7 Kxh7 41. Kh2 Bd8 42. Rg2 a3 43. Rfg1 g6 44. g4 hxg4 45. Rxg4 Bf6 46. Qf1 Kg7 47. h5 g5 48. h6+ Kg6 49. Qg2 Nxe4 50. Qxe4+ Kxh6 51. Nf5+ 1-0