[Event "URS-ch23 Semifinal"]
[Site "Leningrad"]
[Date "1955.11.21"]
[Round "7"]
[White "Chistiakov, Alexander Nikolaevi"]
[Black "Estrin, Yakov Borisovich"]
[Result "1/2-1/2"]

1. e4 e5 2. Bc4 Nf6 3. Nc3 Nxe4 4. Qh5 Nd6 5. Bb3 Nc6 6. Nb5 g6 7. Qf3 f5 8. Qd5 Qe7 9. Nxc7+ Kd8 10. Nxa8 b6 11. Nxb6 axb6 12. Qf3 Bb7 13. Qd1 Nd4 14. Kf1 Qg5 15. f3 f4 16. c3 N4f5 17. Nh3 Qh5 18. Qe2 Nh4 19. Nf2 Nxf3 20. Bd1 Nh4 21. Qxh5 Bxg2+ 22. Ke1 gxh5 23. Rg1 e4 24. a4 Nc4 25. Rxg2 Nxg2+ 26. Kf1 e3 27. Kxg2 exd2 28. Bb3 Rg8+ 29. Kh3 Rg1 30. Bxd2 Rxa1 31. Bxc4 Rxa4 32. Bb3 Ra5 33. c4 Re5 34. Bxf4 Re2 35. Nd3 Re4 36. Bd1 Rxc4 37. Bxh5 Rd4 38. Be2 Re4 39. Bg4 Rd4 40. Bf5 h6 41. Be3 Rd6 42. Kg4 Bg7 43. h4 Ke7 44. h5 Rc6 45. b4 Bd4 46. Bf4 Rc4 47. Kf3 Bg7 48. Be3 Rc6 49. b5 Rc3 50. Bxb6 Rb3 51. Bc5+ d6 52. Bb4 Bc3 53. Bxc3 Rxc3 54. Ke4 Rb3 55. Nf4 Rb4+ 56. Kf3 Rxb5 57. Bg6 1/2-1/2