[Event "Zuerich"]
[Site "Zuerich"]
[Date "1961.06.01"]
[Round "5"]
[White "Christoffel, Martin"]
[Black "Petrosian, Tigran V"]
[Result "0-1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 Rb8 7. Qd2 b5 8. Nge2 b4 9. Nd1 e5
10. O-O Nge7 11. f4 Qc7 12. fxe5 Nxe5 13. Bh6 O-O 14. Bxg7 Kxg7 15. Ne3 Be6 16. Nf5+ Nxf5
17. exf5 Bxf5 18. Rxf5 gxf5 19. Qg5+ Ng6 20. Nf4 Qe7 21. Nh5+ Kh8 22. Nf6 f4 23. Rf1 Rg8
24. gxf4 Rg7 25. Nh5 f6 26. Qh6 Rgg8 27. Ng3 Qf7 28. Kh1 f5 29. Qh5 Rbf8 30. b3 a5 31. Bh3
Ne7 32. Qe2 Rg6 33. Re1 Nc6 34. Nxf5 Rf6 35. Qg2 d5 36. Rg1 Rg8 37. Qxg8+ Qxg8 38. Rxg8+
Kxg8 39. Kg2 Kf8 40. Kf3 Nd4+ 41. Nxd4 cxd4 42. Bd7 Ke7 43. Ba4 Re6 44. h3 Re3+ 45. Kg4
Kf6 46. Bc6 Re2 47. Bxd5 Rxc2 48. Kf3 Rxa2 49. Ke4 Rh2 50. Kxd4 Rxh3 51. Be4 h5 52. Kc4 h4
53. Bb7 Rg3 54. d4 h3 55. d5 a4 56. bxa4 b3 57. d6 b2 58. Be4 h2 0-1