[Event "URS-ch31 Semifinal"]
[Site "Kharkov"]
[Date "1963.??.??"]
[Round "?"]
[White "Lebedev, Boris"]
[Black "Osnos, Viatcheslav"]
[Result "0-1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 a6 8. Qd2 Nbd7 9. O-O-O b5 10. Bh6 Bxh6 11. Qxh6 Bb7 12. Nb3 Qc7 13. Kb1 b4 14. Ne2 a5 15. Rc1 a4 16. Nd2 d5 17. exd5 Bxd5 18. c4 Bb7 19. Qe3 a3 20. b3 Rd8 21. Nf4 O-O 22. Nd3 Nb8 23. Be2 Nc6 24. h4 Nd4 25. Rhd1 Nxe2 26. Qxe2 Qd6 27. Nf1 Nh5 28. c5 Qf6 29. Qe5 Qxh4 30. Rc4 Qf6 31. Qxf6 Nxf6 32. Kc2 Ba6 33. Rxb4 Rc8 34. Ra4 Bxd3+ 35. Rxd3 Rxc5+ 36. Rc3 Re5 37. Ne3 Nd5 38. Nxd5 Rxd5 39. Rxa3 Rfd8 40. Kb2 Rd2+ 41. Rc2 h5 42. b4 h4 43. Rb3 R2d4 44. b5 Kg7 45. a3 e5 46. b6 Rb8 47. Kb1 e4 48. fxe4 Rxe4 49. b7 Re7 50. Rcb2 g5 51. Rb4 f5 52. a4 g4 53. a5 h3 54. gxh3 gxh3 55. a6 Re1+ 56. Kc2 h2 57. a7 h1=Q 58. axb8=Q Qc6+ 59. Kd3 Qf3+ 60. Kd4 Qe4+ 61. Kc5 Rc1+ 0-1