[Event "URS-ch25 Semifinal"]
[Site "Leningrad"]
[Date "1957.12.01"]
[Round "14"]
[White "Zilber, Israel"]
[Black "Ragozin, Viacheslav"]
[Result "1-0"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. cxd5 cxd5 5. Nc3 g6 6. Bf4 Bg7 7. Bxb8 Rxb8 8. Qa4+ Bd7 9. Qxa7 O-O 10. Qa3 b5 11. Qb4 Re8 12. e3 Bf8 13. Ne5 e6 14. Qb3 b4 15. Nd1 Qa5 16. Nxd7 Nxd7 17. Be2 Rec8 18. O-O Nb6 19. f4 Nc4 20. Bxc4 dxc4 21. Qc2 Ra8 22. Qe2 Ra7 23. Nf2 c3 24. b3 c2 25. Rfc1 Rac7 26. Nd3 Rc3 27. Nb2 Qa3 28. Na4 R3c6 29. Qb5 R8c7 30. g4 f6 31. h4 Kf7 32. Kf2 Be7 33. f5 gxf5 34. gxf5 e5 35. Qd5+ Ke8 36. Qg8+ Bf8 37. d5 Rd6 38. Qg2 Ra6 39. Qe4 Rxa4 40. bxa4 Qxa4 41. a3 Qb3 42. axb4 Rc4 43. Qf3 Qxb4 44. Qh5+ Ke7 45. Qxh7+ Kd6 46. Ra6+ Kxd5 47. Qg8+ Ke4 48. Qg4+ Kd5 49. Qg2+ 1-0