lichess dev

[Event "Black12 Arena"] [Site "http://chess-academy.net/XL286WzY"] [Date "2025.12.16"] [Round "-"] [White "Alex_Alex"] [Black "EdChiriac"] [Result "1-0"] [UTCDate "2025.12.16"] [UTCTime "17:10:55"] [WhiteElo "1886"] [BlackElo "1232"] [WhiteRatingDiff "+1"] [BlackRatingDiff "-1"] [Variant "Standard"] [TimeControl "420+0"] [ECO "C42"] [Opening "Petrov's Defense #4"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e4 e5 2. Nf3 Nf6?! { (0.22 → 0.73) Inaccuracy. Best move was Nc6. } (2... Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5) 3. Nxe5 d6 4. Nf3 { C42 Petrov's Defense #4 } Nc6? { (0.54 → 2.10) Mistake. Best move was Nxe4. } (4... Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. c4 Nb4 9. cxd5) 5. d4? { (2.10 → 0.44) Mistake. Best move was d3. } (5. d3) 5... b5?? { (0.44 → 4.41) Blunder. Best move was Nxe4. } (5... Nxe4) 6. Bxb5 Bd7 7. O-O g6? { (4.23 → 6.11) Mistake. Best move was Ne7. } (7... Ne7) 8. d5? { (6.11 → 3.32) Mistake. Best move was e5. } (8. e5 Ne4 9. Bxc6 Bxc6 10. d5 Bg7 11. dxc6 dxe5 12. Na3 Nd6 13. Nxe5 Bxe5 14. Re1 O-O) 8... Ng4?? { (3.32 → 8.52) Blunder. Best move was Ne5. } (8... Ne5 9. Bxd7+) 9. dxc6 Qh4? { (8.35 → 30.61) Mistake. Best move was Be6. } (9... Be6 10. Ng5 Nf6 11. Nxe6 fxe6 12. Bc4 Qe7 13. Re1 Bg7 14. Nc3 O-O 15. e5 dxe5 16. Rxe5) 10. cxd7+ Ke7 11. Nxh4 Bg7 12. Bg5+ Bf6 13. Bxf6+ Nxf6 14. e5 dxe5 15. Re1 c6 16. Rxe5+ Kd8?! { (41.40 → Mate in 4) Checkmate is now unavoidable. Best move was Kf8. } (16... Kf8 17. d8=Q+) 17. Bxc6?! { (Mate in 4 → Mate in 6) Not the best checkmate sequence. Best move was Qd6. } (17. Qd6 cxb5 18. Qe7+ Kc7 19. d8=B+ Kc8 20. Qc7#) 17... Kc7 18. Bxa8 Kd8 19. Qd6 Nxd7 20. Bc6 Kc8 21. Qxd7+ Kb8 22. Qb7# { White wins by checkmate. } 1-0