[Event "10th Weekly World Classicals Team Battle"] [Site "https://lichess.org/TPuUrncr"] [Date "2021.09.25"] [White "N_Bair"] [Black "Acerb8"] [Result "0-1"] [UTCDate "2021.09.25"] [UTCTime "15:56:14"] [WhiteElo "2101"] [BlackElo "1667"] [WhiteRatingDiff "-13"] [BlackRatingDiff "+11"] [Variant "Standard"] [TimeControl "1800+0"] [ECO "B21"] [Opening "Sicilian Defense: McDonnell Attack"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 c5 2. f4 { B21 Sicilian Defense: McDonnell Attack } e6 3. Nf3 Be7 4. b3 Nf6 5. Nc3 Nh5?! { (-0.12 → 0.62) Inaccuracy. d5 was best. } (5... d5 6. e5) 6. d3 O-O 7. e5 Nc6 8. g4? { (0.42 → -0.96) Mistake. Be2 was best. } (8. Be2 g6 9. Qd2 d5 10. exd6 Bxd6 11. g3 b6 12. Bb2 Be7 13. O-O-O Bb7 14. Kb1 Nd4) 8... Bh4+ 9. Ke2 Nd4+ 10. Nxd4 cxd4 11. Ne4 d5 12. Nd6? { (-1.57 → -3.25) Mistake. Nf2 was best. } (12. Nf2 f6) 12... Nf6?? { (-3.25 → 0.88) Blunder. Nxf4+ was best. } (12... Nxf4+ 13. Bxf4) 13. exf6?? { (0.88 → -2.47) Blunder. g5 was best. } (13. g5 Ng4 14. Rg1 Ne3 15. Bxe3 dxe3 16. Kxe3 d4+ 17. Kd2 Bf2 18. Rg4 Be3+ 19. Ke2 Bd7) 13... Qxf6?? { (-2.47 → 2.06) Blunder. Qxd6 was best. } (13... Qxd6 14. fxg7 Re8 15. Kf3 e5 16. Kg2 exf4 17. Qf3 Bd7 18. Qxf4 Qxf4 19. Bxf4 Rac8 20. Kh3) 14. Nxc8?! { (2.06 → 1.33) Inaccuracy. g5 was best. } (14. g5 Qg6 15. Bh3 h6 16. Rg1 hxg5 17. Kf1 Bd7 18. Qf3 Qf6 19. Rg2 e5 20. Bxd7 Qxd6) 14... Raxc8 15. Qd2? { (1.75 → 0.07) Mistake. Bg2 was best. } (15. Bg2) 15... e5 16. f5? { (0.28 → -0.90) Mistake. g5 was best. } (16. g5) 16... h6? { (-0.90 → 0.28) Mistake. Rc3 was best. } (16... Rc3 17. Kd1) 17. Bg2?? { (0.28 → -2.03) Blunder. Kd1 was best. } (17. Kd1) 17... Bg5?! { (-2.03 → -1.17) Inaccuracy. e4 was best. } (17... e4 18. Kd1 Rc7 19. Qe2 Rfc8 20. c4 exd3 21. Qxd3 dxc4 22. bxc4 b5 23. c5 Rxc5 24. Bb2) 18. Qe1?? { (-1.17 → -7.03) Blunder. Qd1 was best. } (18. Qd1) 18... Rc5?? { (-7.03 → -0.03) Blunder. Rxc2+ was best. } (18... Rxc2+ 19. Kf1) 19. Bxg5 Rxc2+?? { (0.11 → 7.15) Blunder. Qxg5 was best. } (19... Qxg5 20. Kd1) 20. Kf3?? { (7.15 → -7.87) Blunder. Kd1 was best. } (20. Kd1 Qc6 21. Bxd5 Rxa2 22. Bxc6 Rxa1+ 23. Bc1 Rc8 24. Qxe5 Rxc6 25. Qf4 Rc3 26. Ke2 a5) 20... Qxg5 21. Kg3 h5 22. h3?! { (-10.46 → Mate in 7) Checkmate is now unavoidable. Bf3 was best. } (22. Bf3 Qf4+) 22... Qf4+ 23. Kh4 Rxg2 24. Rf1 Rxg4+ 25. Kxh5 Qg5# { Black wins by checkmate. } 0-1