lichess dev

[Event "Open Arena"] [Site "http://chess-academy.net/OajzhOJp"] [Date "2021.02.26"] [Round "-"] [White "AntArRus"] [Black "Marius"] [Result "1-0"] [UTCDate "2021.02.26"] [UTCTime "17:44:10"] [WhiteElo "1775"] [BlackElo "1589"] [WhiteRatingDiff "+8"] [BlackRatingDiff "-7"] [Variant "Standard"] [TimeControl "420+2"] [ECO "B56"] [Opening "Sicilian Defense: Classical Variation"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e4 c5 2. Nf3 Nc6 3. d4?! { (0.63 → -0.36) Inaccuracy. Best move was Bb5. } (3. Bb5 e6 4. O-O Nge7 5. d4 cxd4 6. Nxd4 Qb6 7. Nxc6 bxc6) 3... cxd4 4. Nxd4 Nf6?! { (-0.33 → 0.42) Inaccuracy. Best move was e5. } (4... e5) 5. Nc3 d6?! { (-0.11 → 0.75) Inaccuracy. Best move was e5. } { B56 Sicilian Defense: Classical Variation } (5... e5 6. Ndb5) 6. Be3?! { (0.75 → -0.03) Inaccuracy. Best move was Bg5. } (6. Bg5 e6 7. Qd2 Be7 8. O-O-O O-O 9. f3 d5 10. h4 dxe4 11. Nxc6 bxc6 12. Qxd8 Rxd8) 6... Nxd4? { (-0.03 → 1.09) Mistake. Best move was e5. } (6... e5 7. Nb3) 7. Bxd4?! { (1.09 → 0.50) Inaccuracy. Best move was Qxd4. } (7. Qxd4 a6) 7... Qc7? { (0.50 → 1.92) Mistake. Best move was e5. } (7... e5 8. Bb5+ Nd7 9. Be3 Be7 10. Qd2 O-O 11. O-O-O Nf6 12. Be2 a6 13. Kb1 b5 14. a3) 8. Nb5? { (1.92 → 0.56) Mistake. Best move was Nd5. } (8. Nd5) 8... Qb8 9. Bd3? { (1.26 → 0.13) Mistake. Best move was Bxf6. } (9. Bxf6 gxf6) 9... Nd7? { (0.13 → 1.57) Mistake. Best move was e5. } (9... e5 10. Be3 a6 11. Nc3 b5 12. Bg5 Be7 13. Bxf6 Bxf6 14. Nd5 Bd8 15. O-O O-O 16. Qe2) 10. Qe2?! { (1.57 → 0.82) Inaccuracy. Best move was Nc3. } (10. Nc3 a6) 10... e6?! { (0.82 → 1.80) Inaccuracy. Best move was e5. } (10... e5 11. Be3) 11. Qe3?! { (1.80 → 0.87) Inaccuracy. Best move was Nc3. } (11. Nc3) 11... f6?? { (0.87 → 4.29) Blunder. Best move was b6. } (11... b6 12. Qg3 a6 13. Nc3 h5 14. f4 h4 15. Qf2 b5 16. O-O-O b4 17. Na4 Bb7 18. b3) 12. Bxa7 Rxa7 13. Qxa7 g6?! { (3.82 → 4.47) Inaccuracy. Best move was Be7. } (13... Be7 14. Qxb8) 14. Qxb8 Nxb8 15. f4?! { (4.27 → 3.70) Inaccuracy. Best move was Be2. } (15. Be2) 15... b6?! { (3.70 → 4.49) Inaccuracy. Best move was Ke7. } (15... Ke7 16. Bc4 Bd7 17. Rd1 Bxb5 18. Bxb5 Bh6 19. O-O Rc8 20. c3 Rc5 21. a4 f5 22. Rde1) 16. O-O-O Be7? { (4.18 → 6.10) Mistake. Best move was Ke7. } (16... Ke7 17. Kb1) 17. Be2? { (6.10 → 5.10) Mistake. Best move was Bc4. } (17. Bc4) 17... Bd7? { (5.10 → 6.53) Mistake. Best move was Kd8. } (17... Kd8 18. Nxd6 Rf8 19. Rhf1 Kc7 20. Nb5+ Kb7 21. a3 h5 22. Nc3 Nc6 23. b4 h4 24. Kb2) 18. Nxd6+ Bxd6? { (5.96 → 7.63) Mistake. Best move was Kf8. } (18... Kf8 19. Bb5 Bxb5 20. Nxb5 Kg7 21. c3 Rc8 22. Kc2 Rc5 23. Nd4 Kf7 24. b4 Rc8 25. Kb3) 19. Rxd6 Nc6? { (7.18 → 10.31) Mistake. Best move was Ke7. } (19... Ke7 20. Rxb6) 20. Bb5 f5 21. Bxc6 Bxc6 22. Rxc6 Ke7 23. Rc7+ Kf6? { (9.81 → Mate in 1) Checkmate is now unavoidable. Best move was Kd6. } (23... Kd6 24. Rf7) 24. e5# { White wins by checkmate. } 1-0