[Event "RUS-chT2"] [Site "Sochi"] [Date "2015.05.02"] [Round "2.1"] [White "Chekhov, Sergey"] [Black "Yudin, Sergei"] [Result "0-1"] [GameId "rNBYe5LW"] [WhiteElo "2486"] [BlackElo "2524"] [Variant "Standard"] [TimeControl "-"] [ECO "B00"] [Opening "Pirc Defense"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 { [%eval 0.27] } 1... d6 { [%eval 0.37] } { B00 Pirc Defense } 2. Nc3 { [%eval 0.34] } 2... Nf6 { [%eval 0.49] } 3. f4 { [%eval 0.2] } 3... d5 { [%eval 0.33] } 4. e5 { [%eval 0.21] } 4... d4 { [%eval 0.27] } 5. Nce2 { [%eval 0.28] } 5... Nh5 { [%eval 0.46] } 6. d3 { [%eval 0.1] } 6... c5 { [%eval 0.22] } 7. c4 { [%eval -0.16] } 7... Nc6 { [%eval -0.03] } 8. Ng3 { [%eval -0.29] } 8... Nxg3 { [%eval -0.22] } 9. hxg3 { [%eval -0.25] } 9... g6 { [%eval -0.22] } 10. Bd2 { [%eval -0.31] } 10... f6 { [%eval -0.18] } 11. exf6 { [%eval -0.31] } 11... exf6 { [%eval -0.15] } 12. Qe2+ { [%eval -0.17] } 12... Kf7 { [%eval -0.11] } 13. g4 { [%eval -0.02] } 13... Bg7 { [%eval 0.13] } 14. O-O-O { [%eval 0.19] } 14... Rb8 { [%eval 0.07] } 15. g3 { [%eval -0.32] } 15... b5 { [%eval -0.4] } 16. Bg2 { [%eval -0.62] } 16... Ne7? { (-0.62 → 0.53) Mistake. Re8 was best. } { [%eval 0.53] } (16... Re8 17. Qf3 Ne7 18. f5 bxc4 19. dxc4 Qb6 20. Qa3 gxf5 21. Bf4 Bb7 22. Bxb8 Bxg2 23. Rh2) 17. Nh3?! { (0.53 → -0.31) Inaccuracy. cxb5 was best. } { [%eval -0.31] } (17. cxb5 Re8 18. Re1 Bd7 19. a4 a6 20. g5 Kg8 21. gxf6 Bxf6 22. Nf3 axb5 23. Ne5 Bg7) 17... bxc4 { [%eval -0.35] } 18. dxc4 { [%eval -0.47] } 18... d3 { [%eval -0.62] } 19. Qf3?? { (-0.62 → -7.00) Blunder. Qe3 was best. } { [%eval -7.0] } (19. Qe3 Bxg4 20. Bc3 Bxd1 21. Rxd1 Qb6 22. Nf2 Rhd8 23. Nxd3 Nf5 24. Qf2 Ne7 25. Kb1 f5) 19... Bxg4 { [%eval -6.31] } 20. Qxg4 { [%eval -7.13] } 20... f5 { [%eval -7.27] } 21. Ng5+ { [%eval -7.23] } 21... Kg8 { [%eval -7.17] } 22. Bc3 { [%eval -6.97] } 22... Bxc3 { [%eval -6.43] } 23. Qf3?? { (-6.43 → Mate in 8) Checkmate is now unavoidable. Qe2 was best. } { [%eval #-8] } (23. Qe2 Bxb2+ 24. Qxb2 Rxb2 25. Kxb2 Qd4+ 26. Kb1 Qxc4 27. Rd2 Kg7 28. Rb2 d2 29. Rd1 Qd3+) 23... d2+ { [%eval #-7] } 24. Kb1 { [%eval #-7] } 24... Rxb2+ { [%eval #-6] } 25. Ka1 { [%eval #-6] } 25... Rb3+?! { (Mate in 6 → -16.37) Lost forced checkmate sequence. Qa5 was best. } { [%eval -16.37] } { White resigns. } (25... Qa5 26. Qd5+ Nxd5 27. Bxd5+ Kg7 28. Rxh7+ Rxh7 29. Ne6+ Kf6 30. Bf3 Qxa2#) 0-1