lichess dev

[Event "Friends Arena"] [Site "http://chess-academy.net/A5HtnzyM"] [Date "2020.07.09"] [Round "-"] [White "olariuchilutsofia"] [Black "Doina"] [Result "1-0"] [UTCDate "2020.07.09"] [UTCTime "16:18:22"] [WhiteElo "1787"] [BlackElo "1092"] [WhiteRatingDiff "+1"] [BlackRatingDiff "-2"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C41"] [Opening "Philidor Defense: Exchange Variation #2"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 { C41 Philidor Defense: Exchange Variation #2 } Bd7?! { (0.41 → 1.03) Inaccuracy. Best move was Nf6. } (4... Nf6 5. Nc3 Be7 6. Be2 O-O 7. Bf4 Nc6 8. O-O h6 9. Bg3) 5. Nc3 Bc6? { (0.66 → 1.87) Mistake. Best move was Nf6. } (5... Nf6 6. f3 Nc6 7. Be3 g6 8. Qd2 Bg7 9. O-O-O O-O 10. g4 Ne5 11. Kb1 c6 12. h4) 6. Bf4 g5? { (1.54 → 3.21) Mistake. Best move was Be7. } (6... Be7) 7. Bg3? { (3.21 → 2.14) Mistake. Best move was Be3. } (7. Be3 Nd7 8. h4 gxh4 9. Qd2 Bg7 10. O-O-O Bxd4 11. Qxd4 Qf6 12. Qd2 Qg7 13. Rxh4 Ne7) 7... Bxe4?? { (2.14 → 7.56) Blunder. Best move was Nd7. } (7... Nd7 8. h4) 8. Nxe4 Qe7? { (7.24 → 8.61) Mistake. Best move was Nf6. } (8... Nf6 9. Bd3 Bg7 10. Nxg5 O-O 11. O-O Nc6 12. Nf5 Ne7 13. Nxg7 Kxg7 14. Nf3 Ng6 15. Nd4) 9. Qe2?! { (8.61 → 7.94) Inaccuracy. Best move was Qf3. } (9. Qf3) 9... Bg7? { (7.94 → 12.17) Mistake. Best move was Nd7. } (9... Nd7 10. O-O-O) 10. Nf5 Qe6 11. Nxg7+ Kf8 12. Nxe6+ Ke7?! { (31.49 → Mate in 9) Checkmate is now unavoidable. Best move was fxe6. } (12... fxe6) 13. N6xg5 Nc6 14. Nc5+ Kf6 15. Nge4+?! { (Mate in 4 → 28.84) Lost forced checkmate sequence. Best move was Qf3+. } (15. Qf3+ Kxg5 16. Ne4+ Kh6 17. Qxf7 d5 18. Bf4#) 15... Kf5?! { (28.84 → Mate in 1) Checkmate is now unavoidable. Best move was Kg7. } (15... Kg7 16. Qg4+) 16. Qf3+?! { (Mate in 1 → Mate in 2) Not the best checkmate sequence. Best move was Qh5#. } (16. Qh5#) 16... Kg6 17. Nc3?! { (Mate in 2 → 25.51) Lost forced checkmate sequence. Best move was Qg4+. } (17. Qg4+ Kh6 18. Bf4#) 17... Nce7?! { (25.51 → Mate in 2) Checkmate is now unavoidable. Best move was f5. } (17... f5 18. Nxb7) 18. Bd3+?! { (Mate in 2 → 30.75) Lost forced checkmate sequence. Best move was Qg4+. } (18. Qg4+ Kh6 19. Bf4#) 18... Kg7 19. O-O dxc5 20. Be5+ Kh6?! { (24.22 → Mate in 2) Checkmate is now unavoidable. Best move was f6. } (20... f6 21. Bxc7) 21. Qh3+ Kg5 22. f4# { White wins by checkmate. } 1-0