[Event "URS-ch25 Semifinal"]
[Site "Leningrad"]
[Date "1957.12.01"]
[Round "14"]
[White "Krogius, Nikolai V"]
[Black "Klaman, Konstantin"]
[Result "1/2-1/2"]

1. d4 Nf6 2. Nf3 d5 3. c4 c6 4. Nc3 dxc4 5. a4 Bg4 6. Ne5 Bh5 7. Nxc4 Nbd7 8. g3 e6 9. Bg2 Bb4 10. O-O O-O 11. a5 Nd5 12. Bd2 Re8 13. Ne4 N7f6 14. Nxf6+ Qxf6 15. Bxb4 Nxb4 16. Qd2 Qe7 17. Ra4 Na6 18. e4 Red8 19. e5 Rab8 20. Nd6 Nc7 21. a6 Nxa6 22. Bxc6 bxc6 23. Rxa6 Bf3 24. Rfa1 Rd7 25. R1a3 Bd5 26. f4 f5 27. Qa5 Rxb2 28. Rxa7 Rxa7 29. Qxa7 Qxa7 30. Rxa7 Rb8 31. Rc7 Rb1+ 32. Kf2 Rb2+ 33. Ke3 h5 1/2-1/2