[Event "K-12 Coast to Coast Chess"] [Site "https://lichess.org/qniv9n5r"] [Date "2021.09.11"] [White "gn999123"] [Black "AntPoison"] [Result "0-1"] [UTCDate "2021.09.11"] [UTCTime "16:09:02"] [WhiteElo "1866"] [BlackElo "1770"] [WhiteRatingDiff "-12"] [BlackRatingDiff "+108"] [Variant "Standard"] [TimeControl "600+5"] [ECO "B90"] [Opening "Sicilian Defense: Najdorf Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 { B90 Sicilian Defense: Najdorf Variation } 6. f3 e5 7. Nb3 Be7 8. Be3 Be6 9. Qd2 O-O 10. g4? { (0.36 → -0.80) Mistake. O-O-O was best. } (10. O-O-O Nbd7) 10... b5? { (-0.80 → 0.50) Mistake. d5 was best. } (10... d5 11. Nxd5 Nxd5 12. exd5 Bh4+ 13. Bf2 Bxd5 14. Bg2 Bxf2+ 15. Qxf2 Qc7 16. Qc5 Bc6 17. O-O-O) 11. h4 b4 12. Nd5 Nxd5 13. exd5 Bxh4+?! { (0.07 → 0.93) Inaccuracy. Bc8 was best. } (13... Bc8 14. O-O-O a5 15. Kb1 a4 16. Nc1 Na6 17. h5 h6 18. Bb5 a3 19. b3 f5 20. Bc6) 14. Kd1 Bc8 15. Bh6?? { (1.25 → -1.78) Blunder. Bd3 was best. } (15. Bd3 h6) 15... e4?! { (-1.78 → -0.99) Inaccuracy. f5 was best. } (15... f5) 16. Bxg7?! { (-0.99 → -1.81) Inaccuracy. Qh2 was best. } (16. Qh2 gxh6) 16... Kxg7 17. Qh2 Bg5? { (-1.98 → -0.51) Mistake. exf3 was best. } (17... exf3 18. Qxh4) 18. Qxh7+ Kf6 19. Qxe4?? { (-0.52 → -2.31) Blunder. Nd2 was best. } (19. Nd2 Bxd2) 19... a5?? { (-2.31 → 6.75) Blunder. Qe7 was best. } (19... Qe7) 20. f4 Bxg4+?! { (5.94 → 8.86) Inaccuracy. Kg7 was best. } (20... Kg7 21. Qh7+ Kf6 22. fxg5+ Ke7 23. Qe4+ Kd7 24. Qf4 Kc7 25. Nd4 Bd7 26. Kd2 Rg8 27. Rh5) 21. Kc1?? { (8.86 → 0.98) Blunder. Kd2 was best. } (21. Kd2 Nd7) 21... Re8?? { (0.98 → 11.02) Blunder. Qe8 was best. } (21... Qe8) 22. fxg5+ Kxg5 23. Rh5+?? { (11.88 → -6.95) Blunder. Qh7 was best. } (23. Qh7 Qf6 24. Qh4+ Kf5 25. Bd3+ Ke5 26. Qxg4 Qf4+ 27. Qxf4+ Kxf4 28. Rf1+ Kg3 29. Kd2 Nd7) 23... Kxh5?! { (-6.95 → -5.08) Inaccuracy. Bxh5 was best. } (23... Bxh5) 24. Qh7+ Kg5 25. Qg7+ Kh4 26. Qh6+ Kg3 27. Qd2 Qe7 28. Qg2+ Kf4 29. Qf2+ Kg5 30. Qd2+ Qe3 31. Qxe3+ Rxe3 32. Kd2 Re5 33. Bg2 Nd7 34. Rf1 Re2+ 35. Kd3?! { (-11.94 → Mate in 7) Checkmate is now unavoidable. Kc1 was best. } (35. Kc1 Rxg2) 35... Rxg2?! { (Mate in 7 → -14.25) Lost forced checkmate sequence. Ne5+ was best. } (35... Ne5+ 36. Kd4 Rc8 37. Nxa5 Rcxc2 38. Rd1 Kf4 39. Rf1+ Bf3 40. Rxf3+ Nxf3+ 41. Bxf3 Red2#) 36. Nd4 Ne5+ 37. Ke4 f5+ 38. Nxf5 Re2+ 39. Kd4 Bxf5 40. Rg1+ Kf6 41. c4 Rc8 42. b3 Rxa2 43. c5 Rxc5 44. Rg2 Rxg2 45. Ke3 Rc3+ 46. Kd4 Rd3# { Black wins by checkmate. } 0-1