[Event "URS-ch24 Semifinal"]
[Site "Leningrad"]
[Date "1956.11.??"]
[Round "?"]
[White "Kotov, Alexander"]
[Black "Osnos, Viatcheslav"]
[Result "1-0"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 Na6 6. a3 Bxc3+ 7. Qxc3 Nxc5 8. f3 b6 9. b4 Na6 10. e4 O-O 11. e5 Ne8 12. Nh3 d5 13. exd6 Nxd6 14. Bb2 f6 15. Bd3 e5 16. Nf2 Nf5 17. Be4 Rb8 18. Rd1 Qe7 19. Qd3 g6 20. Ng4 Kg7 21. O-O Be6 22. f4 exf4 23. Rxf4 Rbd8 24. Bd5 b5 25. Ne3 bxc4 26. Nxf5+ Bxf5 27. Qxc4 Nc7 28. Bf3 Bd3 29. Qc5 Qxc5+ 30. bxc5 Ne6 31. Ra4 a6 32. Rc1 Rc8 33. c6 Rfd8 34. Rb4 Kf7 35. Rb7+ Rc7 36. Bc3 Rc8 37. Bd5 f5 38. Ba5 Rxb7 39. cxb7 Rxc1+ 40. Kf2 f4 41. g4 1-0