[Event "URS-ch20 Semifinal"]
[Site "Leningrad"]
[Date "1952.05.??"]
[Round "?"]
[White "Sopkov,"]
[Black "Taimanov, Mark E"]
[Result "0-1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 Nf6 6. Be3 d6 7. Nge2 O-O 8. h3 Rb8 9. a4 Ne8 10. O-O Nd4 11. f4 a6 12. Rb1 b5 13. axb5 axb5 14. b4 Nc7 15. Nd5 Nxd5 16. exd5 e6 17. Bxd4 cxd4 18. Kh2 e5 19. Nc1 h5 20. Ne2 h4 21. g4 exf4 22. Nxf4 Qg5 23. Qf3 Ra8 24. Kh1 Ra2 25. Rf2 Bd7 26. Rbf1 Qe7 27. Re2 Be5 28. Qf2 Rc8 29. c4 Rxe2 30. Nxe2 bxc4 31. Nxd4 Bxd4 32. Qxd4 c3 33. Rc1 Qe2 34. Be4 c2 35. Qg1 Bb5 36. Qg2 Qd1+ 37. Qg1 Qd2 38. Qf1 Rc3 0-1