[Event "URS-ch25 Semifinal"]
[Site "Leningrad"]
[Date "1957.12.08"]
[Round "18"]
[White "Bykov, Vladimir"]
[Black "Ravinsky, Grigory Ionovich"]
[Result "1/2-1/2"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 10. Nbd2 O-O 11. Bc2 f5 12. Nb3 Qd7 13. Nfd4 Nxd4 14. cxd4 a5 15. f3 a4 16. fxe4 axb3 17. Bxb3 fxe4 18. Rxf8+ Rxf8 19. Be3 Qe8 20. Rc1 c6 21. Qc2 Bd7 22. Qxe4 Bf5 23. Qf3 Bd3 24. Qg3 Qh5 25. h3 Bc4 26. Bc2 Bh4 27. Qg4 Qxg4 28. hxg4 b4 29. Ba4 Ra8 30. b3 Ra6 31. Kh2 Be7 32. Kg3 Kf7 33. Kf3 Ke6 34. Bxc6 Rxc6 35. bxc4 Ra6 36. c5 Ra3 37. Rc2 Bg5 38. Re2 Rd3 39. Kf2 Bxe3+ 40. Rxe3 Rxd4 41. a3 Rxg4 42. axb4 Rxb4 43. Rc3 Rb7 44. c6 Rc7 45. Ke3 Kxe5 46. Rc5 Kd6 47. Kd4 Rxc6 48. Rxd5+ Ke6 49. Rh5 h6 50. Ke3 Rc3+ 51. Kf4 Kf6 52. Rf5+ Kg6 53. Ra5 1/2-1/2