lichess dev

[Event "Masterclass Arena"] [Site "http://chess-academy.net/DTYtfSQC"] [Date "2022.02.04"] [Round "-"] [White "alexandru_apostu"] [Black "Mariaj"] [Result "1-0"] [UTCDate "2022.02.04"] [UTCTime "17:23:25"] [WhiteElo "1632"] [BlackElo "1492"] [WhiteRatingDiff "+15"] [BlackRatingDiff "-7"] [Variant "Standard"] [TimeControl "300+2"] [ECO "C46"] [Opening "Three Knights Opening"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e4 e5 2. Nf3 Nc6 3. Nc3 { C46 Three Knights Opening } Bc5 4. Bc4?! { (0.59 → -0.13) Inaccuracy. Best move was Nxe5. } (4. Nxe5 Nxe5 5. d4 Bd6 6. dxe5 Bxe5 7. f4 Bxc3+ 8. bxc3 d6) 4... Na5?? { (-0.13 → 3.51) Blunder. Best move was Nf6. } (4... Nf6) 5. d3?? { (3.51 → -0.31) Blunder. Best move was Bxf7+. } (5. Bxf7+ Kf8 6. a3 Nc6 7. Ba2 d6 8. d3 Nf6 9. h3 Nd4 10. Be3 Qe8 11. Nd5 Nxd5) 5... Nxc4 6. dxc4 Qe7? { (-0.40 → 1.61) Mistake. Best move was d6. } (6... d6 7. O-O Be6 8. Qe2 Ne7 9. Rd1 f6 10. Rb1 a5 11. a3 a4 12. b4 axb3 13. cxb3) 7. Bg5? { (1.61 → -0.11) Mistake. Best move was Nd5. } (7. Nd5 Qd6 8. O-O c6 9. b4 cxd5 10. bxc5 Qxc5 11. cxd5 d6 12. Qd3 Nf6 13. Ba3 Qc7) 7... Qe6? { (-0.11 → 1.19) Mistake. Best move was f6. } (7... f6 8. Nd5 Qd6 9. Bd2 c6 10. b4 cxd5 11. bxc5 Qxc5 12. cxd5 d6 13. Rb1 f5 14. exf5) 8. Nb5 a6?? { (1.22 → 13.78) Blunder. Best move was Bb6. } (8... Bb6 9. c5 Ba5+ 10. c3 a6 11. Na3 c6 12. Be3 Bc7 13. Qd3 Ne7 14. Nc4 O-O 15. O-O) 9. Nxc7+ Kf8 10. Nxe6+ Ke8 11. Nxg7+ Kf8 12. Nxe5 Rb8?! { (20.04 → Mate in 5) Checkmate is now unavoidable. Best move was d6. } (12... d6 13. Nh5) 13. Nxd7+?! { (Mate in 5 → 18.59) Lost forced checkmate sequence. Best move was Qh5. } (13. Qh5 Bb4+ 14. Kf1 Nh6 15. Qxh6 Kg8 16. Nh5 Bf8 17. Nf6#) 13... Bxd7 14. Qxd7 Re8?! { (17.97 → Mate in 10) Checkmate is now unavoidable. Best move was Kxg7. } (14... Kxg7 15. Qc7 Bb4+ 16. c3 Re8 17. cxb4 Rxe4+ 18. Be3 Nf6 19. O-O-O h5 20. Bd4 Re6 21. Qxb7) 15. Qxe8+ Kxg7 16. O-O?! { (Mate in 12 → 25.00) Lost forced checkmate sequence. Best move was Qe5+. } (16. Qe5+ f6 17. Qxc5 b6 18. Qf5 fxg5 19. Rd1 Ne7 20. Qe5+ Kf7 21. Qxh8 Ke6 22. Qe8 g4) 16... Kg6 17. Qe5 Bb4?! { (29.18 → Mate in 7) Checkmate is now unavoidable. Best move was f6. } (17... f6) 18. Qxh8 Ne7 19. Bxe7?! { (Mate in 3 → Mate in 7) Not the best checkmate sequence. Best move was Qf6+. } (19. Qf6+ Kh5 20. Qh6+ Kg4 21. f3#) 19... f5 20. Qf6+ Kh5 21. Bf8?! { (Mate in 1 → Mate in 4) Not the best checkmate sequence. Best move was Qg5#. } (21. Qg5#) 21... Kg4 22. f3+ Kf4 23. Bxb4?! { (Mate in 1 → Mate in 2) Not the best checkmate sequence. Best move was Bh6#. } (23. Bh6#) 23... Ke3 24. Qxf5?! { (Mate in 2 → Mate in 2) Not the best checkmate sequence. Best move was Bc5+. } (24. Bc5+ Kd2 25. Rf2#) 24... Ke2 25. Rfe1# { White wins by checkmate. } 1-0