[Event "URS-ch31 Final"]
[Site "Leningrad"]
[Date "1963.11.??"]
[Round "5"]
[White "Kortschnoj, Viktor Lvovich"]
[Black "Osnos, Viatcheslav"]
[Result "1-0"]

1. c4 e6 2. Nf3 d5 3. d4 Nf6 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Qc2 c5 8. Rd1 cxd4 9.
Nxd4 Qa5 10. Bh4 dxc4 11. Bxc4 Ne5 12. Be2 Ng6 13. Nb3 Qb6 14. Bg3 Bd7 15. h4 Rfc8 16. h5
Nf8 17. h6 g6 18. O-O Bb5 19. Bxb5 Qxb5 20. Qxg6+ hxg6 21. Nxb5 Rc2 22. Be5 Rc6 23. Rc1
N8d7 24. Rxc6 bxc6 25. Bd6 cxb5 26. Bxe7 Rc8 27. Rd1 Kh7 28. g4 g5 29. Nd4 Kxh6 30. Nxb5
Rc2 31. Ba3 Ne5 32. Nd4 Rc8 33. f3 Nd5 34. Kf2 Nc4 35. Rc1 Ndb6 36. Rc3 Kg6 37. Nb5 Rd8
38. Ke1 a6 39. Nc7 Rh8 40. Nxa6 Rh1+ 41. Kf2 Nxa3 42. bxa3 Rh2+ 43. Ke1 Rxa2 44. Nb4 Ra1+
45. Kf2 Na4 46. Nc2 Nxc3 47. Nxa1 f5 48. Nb3 Kf6 49. Nc5 Ke7 50. Kg3 Kd6 51. Nd3 Ne2+ 52.
Kg2 Nc3 53. Nf2 Nd5 54. e4 Ne3+ 55. Kg3 f4+ 56. Kh2 Nc2 57. Nh3 Nxa3 58. Nxg5 Nc4 59. Kh3
Ne5 60. Kh4 Kd7 61. Kh5 Ke7 62. Kh6 Kf6 63. Nh7+ Kf7 64. g5 Ng6 65. Nf6 Ne5 66. Nh5 Ng6
67. e5 Nxe5 68. Nxf4 Nd7 69. g6+ Kf8 70. Nxe6+ Ke7 1-0