[Event "URS-ch25 Semifinal"]
[Site "Leningrad"]
[Date "1957.11.20"]
[Round "7"]
[White "Zilber, Israel"]
[Black "Aronin, Lev Solomonovich"]
[Result "0-1"]

1. c4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O c5 6. d4 cxd4 7. Nxd4 Nc6 8. Nc3 Qb6 9. Nb3 d6 10. Bg5 Be6 11. Nd5 Bxd5 12. cxd5 Ne5 13. Be3 Qa6 14. Bd4 Rac8 15. Qd2 Rc4 16. Rfc1 Rfc8 17. Rxc4 Nxc4 18. Qd3 b5 19. Bh3 Rb8 20. a4 Qb7 21. axb5 Qxb5 22. Rxa7 Nxd5 23. Bd7 Qxb3 24. Ra8 Qb4 25. Rxb8+ Qxb8 26. Qxc4 Bxd4 27. Qxd4 Qb7 28. Be8 e5 29. Qd2 Kf8 30. Ba4 Ke7 31. b3 Ke6 32. Qh6 Nf6 33. Qd2 Qa7 34. e3 Ne4 35. Qc1 Nc5 36. Bb5 Qb6 37. Ba4 Qb4 38. h3 d5 39. Kg2 d4 40. exd4 Qxd4 41. Bc6 e4 42. Ba8 f5 43. h4 Kd6 44. Qc4 Qxc4 45. bxc4 Ke5 46. Bd5 Nd7 47. Bf7 Kd6 48. h5 g5 49. h6 Nf6 50. c5+ Kxc5 51. Be6 f4 52. gxf4 gxf4 53. Kf1 Kd4 54. Ke2 Ke5 55. Bc8 Ng8 56. Ba6 Nxh6 57. f3 e3 0-1