[Event "URS-ch25 Semifinal"]
[Site "Leningrad"]
[Date "1957.11.25"]
[Round "10"]
[White "Aronin, Lev Solomonovich"]
[Black "Bykov, Vladimir"]
[Result "1-0"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Bd3 Nc6 7. Be3 Nf6 8. Qe2 Bd6 9. h3 Be5 10. Nxc6 bxc6 11. O-O d5 12. Bd2 O-O 13. Rae1 Bxc3 14. Bxc3 Nxe4 15. Bxe4 dxe4 16. Qxe4 f6 17. f4 Rd8 18. Re3 Rd5 19. Rg3 Qf7 20. Qb4 a5 21. Qb6 Bd7 22. Re1 Rf8 23. Ree3 Qh5 24. Rd3 a4 25. Qa7 Qf5 26. Qxa4 h5 27. h4 Rf7 28. Qc4 c5 29. Rxd5 exd5 30. Qxc5 Qxc2 31. Kh2 Qe4 32. Qd4 Bf5 33. Re3 Qxd4 34. Bxd4 Be4 35. a4 Rc7 36. a5 Rc4 37. Bc3 Ra4 38. Re2 f5 39. Rd2 Kf7 40. Kg3 g6 41. Kf2 Ke6 42. Ke3 Kd7 43. b3 d4+ 44. Kf2 Ra3 45. Rxd4+ Kc6 46. Rb4 Bc2 47. Rc4+ Kb5 48. Rb4+ Kc5 49. Rc4+ Kb5 50. Bd2 Bxb3 51. Rc3 Ka4 52. Ke3 Ra2 53. Rc6 Bf7 54. Rb6 Rc2 55. a6 Rc8 56. a7 Ra8 57. Rb4+ Ka3 58. Rb7 Bd5 59. Rd7 Bc6 60. Rc7 Bxg2 61. Kd4 Rd8+ 62. Kc4 Kb2 63. Bc3+ Kc2 64. Be5 Re8 65. Rf7 Kd2 66. Rf6 Rg8 67. Rb6 Rc8+ 68. Kd4 Rd8+ 69. Rd6 Rg8 70. Rb6 Rd8+ 71. Kc5 Rc8+ 72. Kb4 Ra8 73. Rxg6 Bf3 74. Bb8 Ke3 75. Rg5 Bg4 76. Kc3 Kf2 77. Kd4 Kg3 78. Ke5 Kxh4 79. Rxf5 Bxf5 80. Kxf5 Kg3 81. Kg5 1-0