[Event "2021 Summer Marathon"] [Site "https://lichess.org/ZC2oXUZs"] [Date "2021.08.07"] [White "XialmoL"] [Black "ngducphu"] [Result "0-1"] [UTCDate "2021.08.07"] [UTCTime "09:08:21"] [WhiteElo "2010"] [BlackElo "1607"] [WhiteRatingDiff "-11"] [BlackRatingDiff "+11"] [Variant "Standard"] [TimeControl "60+0"] [ECO "A15"] [Opening "English Opening: Anglo-Indian Defense"] [Termination "Normal"] [Annotator "lichess.org"] 1. c4 Nf6 { A15 English Opening: Anglo-Indian Defense } 2. b3 e6 3. Bb2 d5 4. cxd5 Nxd5?! { (-0.13 → 0.49) Inaccuracy. exd5 was best. } (4... exd5 5. Nf3 Bd6 6. g3 O-O 7. Bg2 h6 8. O-O Re8 9. d3) 5. e3 c5 6. Nc3 Nc6 7. Nxd5 exd5 8. Nf3 Be6 9. Bb5 a6?! { (0.47 → 1.31) Inaccuracy. Qb6 was best. } (9... Qb6 10. Bxc6+ Qxc6 11. O-O f6 12. Rc1 Qd7 13. d4 b6 14. Qe2 Bd6 15. dxc5 Bxc5 16. a3) 10. Bxc6+ bxc6 11. Ne5? { (1.42 → -0.11) Mistake. Qc2 was best. } (11. Qc2 f6 12. O-O Bg4 13. Rfc1 Bxf3 14. gxf3 Rb8 15. Ba3 Rb5 16. d4 Qc8 17. Bxc5 Bxc5) 11... Qc7?! { (-0.11 → 0.45) Inaccuracy. Bd6 was best. } (11... Bd6 12. O-O) 12. d4?! { (0.45 → -0.31) Inaccuracy. Nf3 was best. } (12. Nf3 Bd6 13. Qc2 f6 14. O-O Bg4 15. Ba3 Qa5 16. Qc1 Rb8 17. d4 Bxf3 18. gxf3 Rb5) 12... cxd4 13. Bxd4? { (-0.38 → -2.07) Mistake. Qxd4 was best. } (13. Qxd4) 13... O-O-O?? { (-2.07 → 4.99) Blunder. Qa5+ was best. } (13... Qa5+ 14. Kf1) 14. Qd3?? { (4.99 → 1.49) Blunder. O-O was best. } (14. O-O) 14... a5?? { (1.49 → 4.20) Blunder. c5 was best. } (14... c5 15. Rc1 Kb7 16. Qd2 Qb8 17. Bb2 Rc8 18. Nd3 Ka8 19. Be5 Bd6 20. Qa5 Bxe5 21. Qxa6+) 15. Qa6+ Qb7 16. Qxa5?? { (4.22 → -6.41) Blunder. Qxc6+ was best. } (16. Qxc6+) 16... Bb4+ 17. Bc3 Bxa5 18. Bxa5 Qb5 19. Bd2 c5 20. Rc1 Kb8 21. f3 f6 22. Ng4 Bxg4 23. fxg4 Rhe8 24. Kf2 d4 25. exd4? { (-7.86 → Mate in 7) Checkmate is now unavoidable. Rhd1 was best. } (25. Rhd1 Kb7) 25... cxd4?? { (Mate in 7 → -5.92) Lost forced checkmate sequence. Qe2+ was best. } (25... Qe2+ 26. Kg1 Qxd2 27. h4 Qxc1+ 28. Kh2 Qf4+ 29. g3 Re2+ 30. Kh3 Rxd4 31. gxf4 Rd3#) 26. Bf4+ Ka8 27. Rc4 d3 28. Ra4+ Kb7 29. Rc1 Qb6+ 30. Kg3 d2 31. Rcc4 d1=Q 32. Rab4 Rd3+?! { (Mate in 6 → -32.61) Lost forced checkmate sequence. Qd3+ was best. } (32... Qd3+ 33. Kh4 g5+ 34. Bxg5 fxg5+ 35. Kxg5 Qg6+ 36. Kh4 Qh6+ 37. Kg3 Rd3#) 33. Kh4 g5+ 34. Bxg5?! { (-15.16 → Mate in 8) Checkmate is now unavoidable. Kh5 was best. } (34. Kh5 gxf4) 34... fxg5+ 35. Kh5 Rd6 36. Rxb6+ Rxb6 37. Kxg5 Qd5+ 38. Kf4 Re4+?! { (Mate in 2 → -11.33) Lost forced checkmate sequence. Qe5+ was best. } (38... Qe5+ 39. Kf3 Qe3#) 39. Kg3?! { (-11.33 → Mate in 3) Checkmate is now unavoidable. Rxe4 was best. } (39. Rxe4 Rf6+) 39... Qd3+ 40. Kh4 Rf6 41. Rxe4 Qxe4 42. Kg5 Rh6 43. Kxh6 Qg6# { Black wins by checkmate. } 0-1