[Event "URS-ch25 Semifinal"]
[Site "Leningrad"]
[Date "1957.12.04"]
[Round "16"]
[White "Bykov, Vladimir"]
[Black "Klaman, Konstantin"]
[Result "1/2-1/2"]

1. c4 c5 2. Nc3 f5 3. Nf3 d6 4. d4 cxd4 5. Nxd4 Nc6 6. g3 Nxd4 7. Qxd4 e5 8. Qd1 Be6 9. Bg2 Qd7 10. b3 Nf6 11. e4 Be7 12. exf5 Bxf5 13. O-O Bh3 14. Bg5 Bxg2 15. Kxg2 O-O-O 16. Qe2 Ne8 17. Bxe7 Qxe7 18. Rad1 Nf6 19. f3 a6 20. Nd5 Nxd5 21. Rxd5 1/2-1/2