[Event "Vs. Computer"] [Site "Chess.com"] [Date "2021-07-07"] [White "philosopher22"] [Black "Li"] [Result "0-1"] [GameId "x4hsBsgo"] [WhiteElo "?"] [BlackElo "?"] [Variant "Standard"] [TimeControl "-"] [ECO "A46"] [Opening "Indian Defense: London System"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 Nf6 2. Bf4 e6 3. Nf3 { A46 Indian Defense: London System } d5 4. e3 Bd6 5. Bxd6 cxd6 6. c3 O-O 7. Bd3 Nc6 8. Nbd2 e5 9. e4? { (-0.32 → -1.82) Mistake. Ng1 was best. } (9. Ng1 e4 10. Bc2 b5 11. Ne2 Rb8 12. O-O b4 13. c4 dxc4 14. Nxc4 Ba6 15. Nd2 d5) 9... Be6? { (-1.82 → -0.60) Mistake. exd4 was best. } (9... exd4 10. O-O) 10. Qc2? { (-0.60 → -1.86) Mistake. O-O was best. } (10. O-O) 10... exd4 11. cxd4?? { (-1.96 → -5.77) Blunder. O-O was best. } (11. O-O dxc3) 11... Nb4 12. Qb1 Nxd3+ 13. Qxd3 dxe4 14. Nxe4 Nxe4 15. Qxe4 Qa5+?! { (-5.50 → -4.14) Inaccuracy. Bc4 was best. } (15... Bc4 16. Kd1) 16. Nd2? { (-4.14 → -7.24) Mistake. Kf1 was best. } (16. Kf1 Qb5+ 17. Kg1 Bd5 18. Qb1 Qe2 19. Ng5 f5 20. h4 h6 21. Nf3 Bxf3 22. gxf3 Qxf3) 16... Bf5? { (-7.24 → -4.19) Mistake. Rae8 was best. } (16... Rae8 17. O-O Qxd2 18. Qxb7 Qg5 19. Qf3 Bd7 20. Rae1 Qd8 21. Qa3 Qb6 22. Qg3 h5 23. Qf3) 17. Qf3? { (-4.19 → -8.90) Mistake. b4 was best. } (17. b4 Qa6 18. Qxf5 Rfe8+ 19. Ne4 d5 20. Qxd5 Rad8 21. Qf5 Qd3 22. f3 Qxd4 23. Rb1 Rd5) 17... Rfe8+ 18. Kd1 Qb5 19. Re1 Rac8?! { (-8.45 → -5.92) Inaccuracy. Rxe1+ was best. } (19... Rxe1+ 20. Kxe1 Re8+ 21. Kd1 Bd3 22. a4 Qxb2 23. Rc1 Qxd4 24. Qxd3 Qxd3 25. Rc2 Qe2+ 26. Kc1) 20. Rxe8+ Rxe8 21. Nb3 Bd3 22. Qh3 Bg6 23. Rc1? { (-7.92 → Mate in 1) Checkmate is now unavoidable. Qf3 was best. } (23. Qf3) 23... Qe2# { Black wins by checkmate. } 0-1