[Event "Chigorin Memorial-A 15th"] [Site "St Petersburg"] [Date "2007.12.04"] [Round "4"] [White "Zhigalko, Andrey"] [Black "Mamedov, Rauf"] [Result "0-1"] [GameId "NdvzIP3M"] [WhiteElo "2554"] [BlackElo "2586"] [Variant "Standard"] [TimeControl "-"] [ECO "B28"] [Opening "Sicilian Defense: O'Kelly Variation, Venice System, Steiner Line"] [Termination "Unknown"] [Annotator "lichess.org"] 1. e4 { [%eval 0.21] } 1... c5 { [%eval 0.2] } 2. Nf3 { [%eval 0.0] } 2... a6 { [%eval 0.36] } 3. c3 { [%eval 0.13] } 3... d6?! { (0.13 → 0.91) Inaccuracy. d5 was best. } { [%eval 0.91] } { B28 Sicilian Defense: O'Kelly Variation, Venice System, Steiner Line } (3... d5 4. exd5 Qxd5 5. Be2 Nf6 6. Na3 Nbd7 7. Nc4 b5 8. Ne3) 4. d4 { [%eval 0.92] } 4... Qc7 { [%eval 1.04] } 5. h3 { [%eval 1.01] } 5... g6 { [%eval 1.02] } 6. Bd3 { [%eval 1.37] } 6... Bg7 { [%eval 1.36] } 7. O-O { [%eval 1.08] } 7... Nf6 { [%eval 1.39] } 8. Re1 { [%eval 1.1] } 8... Nc6 { [%eval 1.38] } 9. dxc5 { [%eval 0.99] } 9... dxc5 { [%eval 1.03] } 10. e5 { [%eval 1.11] } 10... Nd7 { [%eval 1.05] } 11. e6 { [%eval 1.1] } 11... fxe6 { [%eval 0.88] } 12. Ng5 { [%eval 1.07] } 12... Nde5 { [%eval 1.27] } 13. Bc2 { [%eval 1.33] } 13... c4 { [%eval 0.96] } 14. Bf4 { [%eval 0.47] } 14... O-O { [%eval 0.51] } 15. Bg3 { [%eval 0.7] } 15... h6 { [%eval 1.01] } 16. Ne4 { [%eval 0.99] } 16... b5 { [%eval 1.08] } 17. a4 { [%eval 1.02] } 17... b4 { [%eval 1.12] } 18. Nbd2 { [%eval 1.47] } 18... Qd8 { [%eval 1.65] } 19. Qe2 { [%eval 1.61] } 19... b3 { [%eval 1.66] } 20. Bd1?! { (1.66 → 0.72) Inaccuracy. Bb1 was best. } { [%eval 0.72] } (20. Bb1 Nd3 21. Bxd3 cxd3 22. Qe3 Qd5 23. Ra3 Na5 24. Nc5 Rf5 25. Ncxb3 Bb7 26. f3 Nxb3) 20... Qd5 { [%eval 1.0] } 21. Qf1? { (1.00 → -0.24) Mistake. Qe3 was best. } { [%eval -0.24] } (21. Qe3) 21... Nd3 { [%eval -0.15] } 22. Re3 { [%eval 0.0] } 22... Nxb2 { [%eval -0.13] } 23. Be2 { [%eval -0.14] } 23... Na5 { [%eval -0.11] } 24. Rb1 { [%eval -0.01] } 24... Nd3 { [%eval -0.5] } 25. Bc7?? { (-0.50 → -2.49) Blunder. Bxd3 was best. } { [%eval -2.49] } (25. Bxd3) 25... Nxf2 { [%eval -1.94] } 26. Bf3? { (-1.94 → -3.50) Mistake. Nxf2 was best. } { [%eval -3.5] } (26. Nxf2 Qxd2) 26... Rxf3 { [%eval -3.51] } 27. gxf3 { [%eval -3.55] } 27... Nxe4 { [%eval -3.43] } 28. Nxe4 { [%eval -3.61] } 28... Bb7 { [%eval -3.62] } 29. Bxa5 { [%eval -3.88] } 29... Qxa5 { [%eval -4.01] } 30. Qxc4 { [%eval -3.88] } 30... Bd5 { [%eval -3.93] } 31. Qc5?! { (-3.93 → -5.10) Inaccuracy. Qd3 was best. } { [%eval -5.1] } (31. Qd3) 31... Qxa4 { [%eval -4.88] } 32. Qxe7 { [%eval -5.06] } 32... Rf8?! { (-5.06 → -3.78) Inaccuracy. Qa2 was best. } { [%eval -3.78] } (32... Qa2) 33. Qh4 { [%eval -3.87] } 33... Qc6 { [%eval -3.36] } 34. Nd2 { [%eval -3.19] } 34... a5 { [%eval -2.52] } 35. Kf2? { (-2.52 → -5.07) Mistake. c4 was best. } { [%eval -5.07] } (35. c4 Qc5) 35... g5 { [%eval -5.37] } 36. Qg3 { [%eval -5.51] } 36... Rf4 { [%eval -4.99] } { Black wins. } 0-1