[Event "URS-ch25 Semifinal"]
[Site "Leningrad"]
[Date "1957.11.11"]
[Round "1"]
[White "Bykov, Vladimir"]
[Black "Cherepkov, Alexander V"]
[Result "1-0"]

1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 c5 5. Bd3 Nc6 6. Nf3 d5 7. O-O O-O 8. a3 Ba5 9. dxc5 Bxc3 10. bxc3 e5 11. cxd5 Qxd5 12. c4 Qxc5 13. Qc2 h6 14. Bb2 Be6 15. Rac1 Rad8 16. Bf5 Rfe8 17. h3 Qe7 18. Rfd1 Nd7 19. Be4 Qc5 20. Bd5 f6 21. e4 Qe7 22. Nh4 Kh7 23. Qe2 Nf8 24. Qf3 g6 25. Qe3 Bc8 26. f4 exf4 27. Qxf4 Ne5 28. Nf3 Nfd7 29. Qe3 b6 30. Rf1 Rf8 31. Rc2 Nxf3+ 32. Rxf3 Ne5 33. Rf1 Kg7 34. Rcf2 Ba6 35. Qg3 Rde8 36. Bd4 g5 37. Qc3 Kg6 38. Kh2 Nd7 39. Rf5 Bc8 40. Kh1 Ne5 41. R5f2 Bd7 42. Qb3 Rc8 43. Bc3 h5 44. Bb4 Rc5 45. a4 h4 46. Qa3 a5 47. Bc3 Qd6 48. Qa1 Rcc8 49. Bd4 Rb8 50. Kg1 Rbc8 51. Qa2 Kg7 52. Qb3 Rb8 53. Qe3 Kg6 54. c5 bxc5 55. Bxc5 Qa6 56. Bxf8 Rxf8 57. Qc5 Re8 58. Rxf6+ Qxf6 59. Rxf6+ Kxf6 60. Qxa5 g4 61. Qb6+ Kg5 62. Qe3+ Kg6 63. a5 Rb8 64. Bb3 g3 65. a6 Bc6 66. Qc3 Rb5 67. Kf1 Kf6 68. Qe3 Kg6 69. Qf4 Kg7 70. a7 Rc5 71. Qg5+ Kf8 72. Qf6+ Ke8 73. Qe6+ 1-0