[Event "URS-ch23 Semifinal"]
[Site "Leningrad"]
[Date "1955.12.03"]
[Round "15"]
[White "Tolush, Alexander V"]
[Black "Krogius, Nikolai V"]
[Result "1-0"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 e5 6. Nge2 O-O 7. Bg5 c6 8. Qd2 Qa5 9. d5 a6 10. Nc1 c5 11. Be2 Nh5 12. g3 Nd7 13. Nb3 Qc7 14. O-O-O b5 15. cxb5 c4 16. Na1 axb5 17. Nxb5 Qb8 18. Nc3 Nc5 19. Bxc4 f5 20. Be3 Qb4 21. Be2 fxe4 22. Nc2 Qb8 23. Bxc5 exf3 24. Be3 fxe2 25. Qxe2 Ba6 26. Qg4 Nf6 27. Qb4 Qc7 28. Bb6 Qd7 29. a4 Rac8 30. Kb1 e4 31. Nd4 Bd3+ 32. Rxd3 exd3 33. Rd1 Rfe8 34. Rxd3 Ne4 35. Nxe4 Rxe4 36. a5 Qf7 37. Rd2 Qf1+ 38. Ka2 Rc4 39. Qb5 Qc1 40. Rd3 Bxd4 41. Bxd4 Rcxd4 42. Rxd4 1-0