[Event "The June Joust: K-12 Arena"] [Site "https://lichess.org/9bz5vbfP"] [Date "2020.06.13"] [White "IsaacMengyuanWu"] [Black "HarshSaber"] [Result "0-1"] [UTCDate "2020.06.13"] [UTCTime "20:38:53"] [WhiteElo "1753"] [BlackElo "1875"] [WhiteRatingDiff "-10"] [BlackRatingDiff "+4"] [Variant "Standard"] [TimeControl "1500+3"] [ECO "B90"] [Opening "Sicilian Defense: Najdorf Variation, English Attack"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 { B90 Sicilian Defense: Najdorf Variation, English Attack } e5 7. Nb3 Be6 8. h3 b5?! { (0.04 → 0.64) Inaccuracy. Be7 was best. } (8... Be7 9. Bd3 Nbd7 10. O-O O-O 11. f4 exf4 12. Rxf4 Ne5 13. Nd4 Rc8 14. Be2 Ng6 15. Rf2) 9. Qd2?! { (0.64 → -0.17) Inaccuracy. a4 was best. } (9. a4 b4 10. Nd5 Nbd7 11. a5 Be7 12. Qd3 Bxd5 13. exd5 Rb8 14. g4 Rb5 15. Bg2 O-O) 9... b4?! { (-0.17 → 0.57) Inaccuracy. Be7 was best. } (9... Be7 10. O-O-O O-O 11. f4 Nc6 12. g4 b4 13. Nd5 Nxe4 14. Qg2 Bxd5 15. Rxd5 Nf6 16. Rd1) 10. Na4? { (0.57 → -0.70) Mistake. Nd5 was best. } (10. Nd5 Nxe4 11. Qd3 Nc5 12. Nxc5 dxc5 13. Rd1 Ra7 14. Nf4 Qxd3 15. Nxd3 Nd7 16. Nxb4 f5) 10... Nxe4 11. Qxb4 d5 12. Qb7? { (-0.16 → -1.68) Mistake. Nac5 was best. } (12. Nac5) 12... Nd7 13. f3?? { (-1.44 → -4.41) Blunder. c3 was best. } (13. c3 Be7) 13... Nd6 14. Qc6 d4? { (-4.24 → -2.25) Mistake. Rc8 was best. } (14... Rc8 15. Qxa6 Ra8 16. Qc6 Qh4+ 17. Bf2 Qxa4 18. Qxa4 Rxa4 19. Nc5 Nxc5 20. Bxc5 Kd7 21. b3) 15. Bd2?? { (-2.25 → -4.83) Blunder. Bf2 was best. } (15. Bf2 Nc4) 15... Be7?? { (-4.83 → -1.06) Blunder. Qh4+ was best. } (15... Qh4+) 16. Nac5 Rc8 17. Qa4? { (-1.40 → -3.07) Mistake. Nxe6 was best. } (17. Nxe6 fxe6 18. Qxa6 O-O 19. O-O-O Ra8 20. Ba5 Qe8 21. Qe2 Nf5 22. Qb5 Ne3 23. Re1 Nc5) 17... O-O?! { (-3.07 → -2.37) Inaccuracy. Bxb3 was best. } (17... Bxb3 18. Nxb3 O-O 19. g3 Nb6 20. Qa5 Rxc2 21. Bd3 Rxb2 22. Rc1 Bg5 23. h4 Be3 24. Bxe3) 18. Nxe6 fxe6 19. O-O-O?? { (-1.61 → -4.79) Blunder. Bxa6 was best. } (19. Bxa6 Rxc2 20. O-O Nb6 21. Qa5 Ndc4 22. Bxc4 Nxc4 23. Qxd8 Rxd8 24. Rac1 Rxd2 25. Rxc4 Rxb2) 19... Qc7 20. c3?! { (-4.32 → -5.49) Inaccuracy. Nxd4 was best. } (20. Nxd4) 20... Nb6 21. Qxa6?! { (-4.93 → -8.50) Inaccuracy. Qa5 was best. } (21. Qa5 Nb7) 21... Ra8 22. Qd3 Rxa2 23. Kb1 Rfa8 24. cxd4 Qa7 25. dxe5 Rxb2+ 26. Kxb2 Qa3+ 27. Kb1? { (-8.27 → Mate in 11) Checkmate is now unavoidable. Kc3 was best. } (27. Kc3 Nd5+) 27... Qa2+ 28. Kc1 Ndc4?! { (Mate in 10 → -25.37) Lost forced checkmate sequence. Ne4 was best. } (28... Ne4 29. Bb4 Rc8+ 30. Bc5 Nxc5 31. Rd2 Nxd3+ 32. Kd1 Qxb3+ 33. Ke2 Nc4 34. g4 Qc3 35. Ra2) 29. Re1 Ba3+ 30. Kd1 Nb2+ 31. Ke2 Nxd3 32. Kxd3?! { (-18.55 → Mate in 17) Checkmate is now unavoidable. Rd1 was best. } (32. Rd1 Qxb3 33. Be3 Nc1+ 34. Kf2 Qxd1 35. Bxb6 Nd3+ 36. Kg1 Qe1 37. Kh2 Qxe5+ 38. g3 Qb2+) 32... Qxb3+ 33. Ke2 Qc4+ 34. Kf2 Bc5+ 35. Kg3 Qd4 36. Re2 Ra2 37. Be3 Qxe5+ 38. f4 Qd5 39. Rxa2 Bxe3 40. Rf2 Bxf2+ 41. Kxf2 Qd4+ 42. Kg3 Qe3+ 43. Kg4?! { (-10.26 → Mate in 5) Checkmate is now unavoidable. Kh2 was best. } (43. Kh2 Qxf4+) 43... h5+ 44. Kg5 Qg3+ 45. Kxh5 Qxf4 46. Be2 Qe5+ 47. Kg6 Qf5# { Black wins by checkmate. } 0-1