lichess dev

[Event "Masterclass Arena"] [Site "http://chess-academy.net/IyKgbj3x"] [Date "2022.01.25"] [Round "-"] [White "alexandru_apostu"] [Black "Mariaj"] [Result "1-0"] [UTCDate "2022.01.25"] [UTCTime "15:29:30"] [WhiteElo "1625"] [BlackElo "1547"] [WhiteRatingDiff "+22"] [BlackRatingDiff "-9"] [Variant "Standard"] [TimeControl "300+1"] [ECO "D20"] [Opening "Queen's Gambit Accepted: Central Variation, McDonnell Defense"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. d4 d5 2. c4 dxc4 3. e4?! { (0.63 → 0.05) Inaccuracy. Best move was Nf3. } (3. Nf3 e6 4. e3 c5 5. Bxc4 cxd4 6. O-O Nc6 7. exd4 Nf6) 3... e5 { D20 Queen's Gambit Accepted: Central Variation, McDonnell Defense } 4. d5? { (0.77 → -1.35) Mistake. Best move was Nf3. } (4. Nf3) 4... Bd6? { (-1.35 → 0.53) Mistake. Best move was b5. } (4... b5) 5. Bxc4 h5? { (0.09 → 1.65) Mistake. Best move was Nf6. } (5... Nf6 6. Nc3) 6. Nf3 Be6?? { (1.17 → 7.55) Blunder. Best move was Ne7. } (6... Ne7 7. O-O O-O 8. Nc3 Nd7 9. h3 a6 10. a4 Ng6 11. Re1 Nf6 12. Bg5 Bc5 13. Bb3) 7. dxe6 fxe6? { (6.93 → 8.11) Mistake. Best move was f6. } (7... f6 8. O-O Nc6 9. Nc3 h4 10. h3 Kf8 11. Nd5 Na5 12. Bd3 Qe8 13. b4 Nc6 14. b5) 8. Bxe6 Kf8? { (7.72 → 9.43) Mistake. Best move was Nd7. } (8... Nd7 9. Ng5 Qe7 10. Nc3 O-O-O 11. Nd5 Bb4+ 12. Ke2 Qd6 13. Be3 Kb8 14. Nf7 Qxe6 15. Nxd8) 9. Ng5?? { (9.43 → 6.42) Blunder. Best move was O-O. } (9. O-O Nf6) 9... Nf6?? { (6.42 → 9.47) Blunder. Best move was Bb4+. } (9... Bb4+ 10. Nc3) 10. Nf7?! { (9.47 → 8.55) Inaccuracy. Best move was Bf5. } (10. Bf5) 10... Qe8?! { (8.55 → 9.23) Inaccuracy. Best move was Qe7. } (10... Qe7 11. Bc4) 11. Nxh8? { (9.23 → 6.34) Mistake. Best move was Bb3. } (11. Bb3 Rg8) 11... Nxe4?? { (6.34 → 13.86) Blunder. Best move was Qxe6. } (11... Qxe6 12. Ng6+) 12. Bf7 Qb5 13. Nc3 Nxc3 14. bxc3 Bc5?! { (12.78 → Mate in 2) Checkmate is now unavoidable. Best move was Nd7. } (14... Nd7 15. Qxh5 Nf6 16. Qf5 Qd7 17. Be6 Qc6 18. O-O Qe4 19. Qg6 Qxg6 20. Nxg6+ Ke8 21. Rb1) 15. Qxh5?! { (Mate in 2 → 22.66) Lost forced checkmate sequence. Best move was Qd8+. } (15. Qd8+ Qe8 16. Qxe8#) 15... Ke7 16. Qg5+ Kd6?! { (27.06 → Mate in 4) Checkmate is now unavoidable. Best move was Kd7. } (16... Kd7) 17. Qxg7?! { (Mate in 4 → 21.90) Lost forced checkmate sequence. Best move was Qg6+. } (17. Qg6+ Ke7 18. Qe6+ Kd8 19. Bg5+ Be7 20. Bxe7#) 17... Nd7?! { (21.90 → Mate in 5) Checkmate is now unavoidable. Best move was c6. } (17... c6 18. Bg5) 18. Qg6+ Nf6 19. Qxf6+ Kd7 20. Qe6+ Kd8 21. Rb1?! { (Mate in 2 → 29.57) Lost forced checkmate sequence. Best move was Bg5+. } (21. Bg5+ Be7 22. Bxe7#) 21... Qxb1?! { (29.57 → Mate in 1) Checkmate is now unavoidable. Best move was Qd7. } (21... Qd7 22. Bg5+) 22. Qe8# { White wins by checkmate. } 1-0