lichess dev

[Event "Masteclass Arena"] [Site "http://chess-academy.net/HdZ1n8Su"] [Date "2021.11.23"] [Round "-"] [White "SorinApostol0919"] [Black "raul"] [Result "1-0"] [UTCDate "2021.11.23"] [UTCTime "15:07:30"] [WhiteElo "1763"] [BlackElo "1540"] [WhiteRatingDiff "+30"] [BlackRatingDiff "-31"] [Variant "Standard"] [TimeControl "420+0"] [ECO "A02"] [Opening "Bird Opening"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. f4?! { (0.15 → -0.38) Inaccuracy. Best move was e4. } { A02 Bird Opening } (1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. O-O d6) 1... c6?! { (-0.38 → 0.31) Inaccuracy. Best move was d5. } (1... d5 2. Nf3 Bf5 3. e3 e6 4. Be2 Nf6 5. Nh4 Be7 6. O-O) 2. e4?! { (0.31 → -0.40) Inaccuracy. Best move was Nf3. } (2. Nf3) 2... c5? { (-0.40 → 0.87) Mistake. Best move was d5. } (2... d5 3. d3 dxe4 4. dxe4 Qxd1+ 5. Kxd1 Nf6 6. Bd3 e5 7. Ke2 Nbd7 8. Nf3 Bd6 9. g3) 3. c4? { (0.87 → -0.48) Mistake. Best move was Nf3. } (3. Nf3) 3... d6? { (-0.48 → 0.67) Mistake. Best move was Nc6. } (3... Nc6 4. Nf3 g6 5. Nc3 Bg7 6. Be2 d6 7. O-O f5 8. d3 Nf6 9. Be3 O-O 10. exf5) 4. Nc3?! { (0.67 → -0.29) Inaccuracy. Best move was Nf3. } (4. Nf3 Nc6 5. d4 cxd4 6. Nxd4 e5 7. Nc2 Nf6 8. Nc3 Bg4 9. Qd2 exf4 10. Qxf4 Ne5) 4... d5?? { (-0.29 → 2.83) Blunder. Best move was Nc6. } (4... Nc6 5. Nf3 Bg4 6. Be2 g6 7. O-O Nf6 8. d3 Bg7 9. Be3 Nd7 10. Bf2 Bxf3 11. Bxf3) 5. e5?? { (2.83 → -0.43) Blunder. Best move was cxd5. } (5. cxd5 e6 6. dxe6 fxe6 7. Nf3 Nc6 8. Bb5 Bd7 9. Bxc6 Bxc6 10. Qb3 Nf6 11. d3 Be7) 5... dxc4?! { (-0.43 → 0.36) Inaccuracy. Best move was e6. } (5... e6) 6. d4? { (0.36 → -0.74) Mistake. Best move was Nf3. } (6. Nf3 Nc6) 6... Qc7?? { (-0.74 → 3.62) Blunder. Best move was cxd4. } (6... cxd4 7. Bxc4) 7. d5 e6?! { (3.08 → 4.07) Inaccuracy. Best move was Nh6. } (7... Nh6 8. Nf3 a6 9. Be2 Bf5 10. Ng5 Nd7 11. e6 Nb6 12. g4 Bd3 13. exf7+ Nxf7 14. Ne6) 8. Bxc4? { (4.07 → 2.89) Mistake. Best move was d6. } (8. d6) 8... exd5 9. Nxd5 f5?? { (2.37 → Mate in 2) Checkmate is now unavoidable. Best move was Qd8. } (9... Qd8) 10. Nf3?? { (Mate in 2 → 6.74) Lost forced checkmate sequence. Best move was Nxc7+. } (10. Nxc7+ Ke7 11. Qd6#) 10... Nc6?? { (6.74 → Mate in 2) Checkmate is now unavoidable. Best move was Qd8. } (10... Qd8 11. Ng5 Be7 12. e6 Bxg5 13. fxg5 Nc6 14. O-O Bxe6 15. Re1 Nd4 16. Nf4 Ne7 17. Nxe6) 11. a3?? { (Mate in 2 → 4.77) Lost forced checkmate sequence. Best move was Nxc7+. } (11. Nxc7+ Ke7 12. Qd6#) 11... Nxe5?? { (4.77 → Mate in 5) Checkmate is now unavoidable. Best move was Qd8. } (11... Qd8 12. Be3) 12. fxe5? { (Mate in 5 → 9.75) Lost forced checkmate sequence. Best move was Nxc7+. } (12. Nxc7+ Ke7 13. fxe5 Bd7 14. Qd6+ Kd8 15. Ne6+ Kc8 16. Qc7#) 12... g5? { (9.75 → Mate in 2) Checkmate is now unavoidable. Best move was Qd8. } (12... Qd8 13. Ng5) 13. Nxg5?! { (Mate in 2 → 19.42) Lost forced checkmate sequence. Best move was Nxc7+. } (13. Nxc7+ Ke7 14. Qd6#) 13... Nh6?! { (19.42 → Mate in 2) Checkmate is now unavoidable. Best move was Qxe5+. } (13... Qxe5+ 14. Kf1) 14. h4?! { (Mate in 2 → 15.89) Lost forced checkmate sequence. Best move was Nxc7+. } (14. Nxc7+ Ke7 15. Qd6#) 14... Ng4?! { (15.89 → Mate in 2) Checkmate is now unavoidable. Best move was Qxe5+. } (14... Qxe5+ 15. Kf1) 15. g3?! { (Mate in 2 → 12.50) Lost forced checkmate sequence. Best move was Nxc7+. } (15. Nxc7+ Ke7 16. Qd6#) 15... Ne3?! { (12.50 → Mate in 2) Checkmate is now unavoidable. Best move was Qxe5+. } (15... Qxe5+ 16. Kf1 Bd6 17. Bf4 Qxb2 18. Ra2 Qd4 19. Re2+ Be5 20. Qxd4 cxd4 21. Rxe5+ Nxe5 22. Bxe5) 16. Bxe3?! { (Mate in 2 → 25.41) Lost forced checkmate sequence. Best move was Nxc7+. } (16. Nxc7+ Ke7 17. Qd6#) 16... f4?! { (25.41 → Mate in 2) Checkmate is now unavoidable. Best move was Kd8. } (16... Kd8 17. Nf7+) 17. Bxf4?! { (Mate in 2 → Mate in 8) Not the best checkmate sequence. Best move was Nxc7+. } (17. Nxc7+ Ke7 18. Bxc5#) 17... Qa5+ 18. Qd2?! { (Mate in 6 → 17.40) Lost forced checkmate sequence. Best move was b4. } (18. b4 Be7 19. Nf6+ Bxf6 20. Bf7+ Kf8 21. Qd6+ Kg7 22. exf6+ Kh6 23. Nf3#) 18... Qxd2+ 19. Kxd2 a5 20. Bb5+ Kd8?! { (17.23 → Mate in 1) Checkmate is now unavoidable. Best move was Bd7. } (20... Bd7 21. Nf6+) 21. Nf7# { White wins by checkmate. } 1-0