[Event "Zuerich"]
[Site "Zuerich"]
[Date "1961.06.04"]
[Round "7"]
[White "Walther, Edgar"]
[Black "Christoffel, Martin"]
[Result "1-0"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 b5 6. Bb3 Be7 7. a4 Bb7 8. c3 O-O 9. O-O d5 10. d4 dxe4 11. Nxe5 Na5 12. Bc2 Qd5 13. axb5 axb5 14. Bg5 c5 15. Rd1 cxd4 16. cxd4 Nb3 17. Rxa8 Rxa8 18. Qe3 Na1 19. Nc3 Qe6 20. Bb1 Qb3 21. Rf1 Qxb2 22. Bxf6 Bxf6 23. Bxe4 Nc2 24. Bxc2 Qxc2 25. Nxb5 Bxe5 26. Qxe5 Qc6 27. f3 Ba6 28. Rb1 f6 29. Qc5 Qxc5 30. dxc5 Rb8 31. Nc3 Rxb1+ 32. Nxb1 Kf7 33. Kf2 Ke6 34. Nc3 g5 35. Ke3 Ke5 36. g3 h5 37. f4+ Ke6 38. fxg5 fxg5 39. Ne4 g4 40. Kd4 Bb7 41. Nd6 Bc6 42. Nc4 Bb7 43. Ne5 Ba8 44. c6 Kd6 45. Ke4 Ke6 46. Kf4 Kd6 47. Kf5 Ke7 48. Kg5 Kd6 49. c7 Bb7 50. Nc4+ Kxc7 51. Kxh5 Bf3 52. Ne3 Kd6 53. Nxg4 Ke6 54. Kg5 Be2 55. Nh6 Bd3 56. h4 Bc2 57. h5 Bh7 58. g4 Bd3 59. Nf5 Kf7 60. Kh6 Kg8 61. Nd6 Kh8 62. g5 Bc2 63. g6 Kg8 64. Ne8 1-0