Mamchenko, Sergei

[Event "Minsk Open 2012"] [Site "Minsk BLR"] [Date "10.07.2012"] [Round "1.1"] [White "Khalifman,A"] [Black "Mamchenko,Sergei"] [WhiteElo "2642"] [BlackElo "2014"] [WhiteTitle "GM"] [BlackTitle ""] [Result "1-0"] [ECO "A11"] 1. c4 c6 2. Nf3 d5 3. e3 Nf6 4. Nc3 Bf5 5. cxd5 Nxd5 6. d4 e6 7. Bc4 Nd7 8. O-O N7f6 9. Nh4 Bg6 10. Nxg6 hxg6 11. g3 Nxc3 12. bxc3 Qa5 13. Qe2 Ne4 14. Bb2 Nxc3 15. Bxc3 Qxc3 16. Rab1 Rb8 17. Ba6 Ba3 18. Bxb7 O-O 19. Qa6 Bd6 20. Rfc1 Qd2 21. Rxc6 Bb4 22. Qxa7 Ba5 23. Qa6 Rfe8 24. Rc5 Bb4 25. Rb5 Be7 26. R5b2 Qc3 27. a4 Bf6 28. Rb3 Qd2 29. Qd3 Qa5 30. Qb5 Qd2 31. a5 Ra8 1-0