[Event "Chigorin Memorial-06"]
[Site "Sochi"]
[Date "1966.??.??"]
[Round "6"]
[White "Krogius, Nikolai V"]
[Black "Sergievsky, Vladimir D"]
[Result "1-0"]

1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. Nf3 Nbd7 7. Bd3 Nf8 8. g3 Ng6 9. h4 Bg4 10. Be2 h6 11. Nd2 Bd7 12. Nf1 Bf8 13. Ne3 Ne7 14. a3 h5 15. f3 g6 16. Nc2 Bg7 17. Be3 Nfg8 18. Qd2 Nh6 19. O-O-O a6 20. Kb1 f5 21. Rhg1 Nf7 22. Bd3 Qc7 23. Qe2 Rb8 24. Bd2 fxe4 25. Nxe4 b5 26. Rc1 bxc4 27. Bxc4 Qb7 28. Bc3 Nxd5 29. Ne3 Bb5 30. Rgd1 Nxe3 31. Bxf7+ Qxf7 32. Nxd6+ Kf8 33. Qxe3 Qb3 34. Qxc5 Kg8 35. Nxb5 Rxb5 36. Qc6 Kh7 37. Rd7 Rg8 38. Qxa6 1-0