[Event "URS-ch25 Semifinal"]
[Site "Leningrad"]
[Date "1957.11.30"]
[Round "13"]
[White "Shamkovich, Leonid Alexandrovic"]
[Black "Estrin, Yakov Borisovich"]
[Result "1-0"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 Bf5 4. O-O c6 5. d3 h6 6. Nc3 Bh7 7. Nd2 Nbd7 8. e4 dxe4 9. dxe4 e5 10. Nc4 Qc7 11. f4 O-O-O 12. Be3 Bc5 13. Bxc5 Nxc5 14. Qe2 exf4 15. gxf4 Kb8 16. e5 Nd5 17. Nxd5 cxd5 18. Nd6 Ne4 19. Bxe4 Bxe4 20. Rad1 f5 21. c4 Rxd6 22. exd6 Qc5+ 23. Qf2 Qxf2+ 24. Kxf2 dxc4 25. Rg1 g5 26. fxg5 hxg5 27. Rxg5 Rxh2+ 28. Ke3 Rh8 29. Rg7 Rd8 30. Kf4 b5 31. Ke5 b4 32. Rdg1 c3 33. bxc3 bxc3 34. Rg8 Rxg8 35. Rxg8+ Kb7 36. d7 c2 37. Rc8 Bc6 38. Rxc6 1-0