lichess dev

[Event "Klein Arena"] [Site "http://chess-academy.net/VH91Zl5i"] [Date "2025.09.25"] [Round "-"] [White "EdChiriac"] [Black "LaiuDamian"] [Result "0-1"] [UTCDate "2025.09.25"] [UTCTime "16:03:07"] [WhiteElo "1222"] [BlackElo "1155"] [WhiteRatingDiff "-15"] [BlackRatingDiff "+15"] [Variant "Standard"] [TimeControl "600+0"] [ECO "C42"] [Opening "Petrov's Defense #2"] [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 { C42 Petrov's Defense #2 } Qe7 4. Nc3?? { (0.90 → -2.16) Blunder. Best move was Nf3. } (4. Nf3 Nxe4 5. Be2 d5 6. O-O Nc6 7. d3 Nf6 8. d4 a6) 4... Qxe5 5. d4 Qa5 6. a3? { (-2.01 → -3.32) Mistake. Best move was Bd2. } (6. Bd2 Bb4) 6... d5 7. b4?? { (-2.69 → -6.75) Blunder. Best move was Bd2. } (7. Bd2 dxe4 8. Nxe4 Qb6 9. Bd3 Nxe4 10. Bxe4 Bd6 11. Be3 Qxb2 12. O-O Qc3 13. Rb1 Nd7) 7... Bxb4 8. Bb2?? { (-5.93 → -18.19) Blunder. Best move was axb4. } (8. axb4 Qxa1) 8... Bxc3+ 9. Bxc3 Qxc3+ 10. Ke2 Nc6 11. a4 Nxd4+ 12. Qxd4 Qxd4 13. Rd1 Qxe4+ 14. Kd2 Qd4+ 15. Kc1 Qa1+ 16. Kd2 Ne4+ 17. Ke1?! { (-26.65 → Mate in 7) Checkmate is now unavoidable. Best move was Ke2. } (17. Ke2 Bg4+) 17... Qc3+ 18. Ke2 Ng3+ 19. hxg3 O-O 20. g4 Re8# { Black wins by checkmate. } 0-1