lichess dev

[Event "709 Arena"] [Site "http://chess-academy.net/0LhJPnkg"] [Date "2026.02.07"] [Round "-"] [White "cobraking79"] [Black "Mateico"] [Result "1-0"] [UTCDate "2026.02.07"] [UTCTime "10:46:05"] [WhiteElo "1337"] [BlackElo "1500"] [WhiteRatingDiff "+165"] [BlackRatingDiff "-232"] [Variant "Standard"] [TimeControl "120+0"] [ECO "C40"] [Opening "King's Knight Opening"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e4 e5 2. Nf3 { C40 King's Knight Opening } Bb4? { (0.22 → 1.54) Mistake. Best move was Nc6. } (2... Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5) 3. c3 Qe7?? { (1.40 → 4.92) Blunder. Best move was Be7. } (3... Be7) 4. cxb4 Qxb4 5. a3?! { (4.88 → 4.09) Inaccuracy. Best move was Nc3. } (5. Nc3) 5... c5?? { (4.09 → 19.38) Blunder. Best move was Qxe4+. } (5... Qxe4+ 6. Be2 Qg6 7. Nc3 e4 8. Nh4 Qf6 9. g3 Ne7 10. O-O Nbc6 11. d3 exd3 12. Bxd3) 6. axb4 cxb4 7. Qb3 a5 8. Qa4 b5 9. Bxb5 Bb7 10. Nxe5 Bxe4 11. f3 Bxb1 12. Rxb1 Nc6 13. Bxc6 O-O-O?! { (30.13 → Mate in 5) Checkmate is now unavoidable. Best move was Nf6. } (13... Nf6 14. Bxa8) 14. Qxa5?! { (Mate in 5 → 34.70) Lost forced checkmate sequence. Best move was Bxd7+. } (14. Bxd7+ Kb7 15. Qb5+ Kc7 16. Qc6+ Kb8 17. Qb6+ Ka8 18. Bc6#) 14... dxc6?! { (34.70 → Mate in 4) Checkmate is now unavoidable. Best move was Nf6. } (14... Nf6 15. Bb5) 15. Qa8+ Kc7 16. Qa7+?! { (Mate in 3 → 36.61) Lost forced checkmate sequence. Best move was Qxc6+. } (16. Qxc6+ Kb8 17. Ra1 b3 18. Ra8#) 16... Kd6 17. Ra1 Rd7?! { (29.13 → Mate in 4) Checkmate is now unavoidable. Best move was Nf6. } (17... Nf6) 18. Qa8?! { (Mate in 4 → 30.16) Lost forced checkmate sequence. Best move was Qxd7+. } (18. Qxd7+ Kxe5 19. Ra5+ c5 20. Rxc5+ Kf4 21. d3#) 18... Kxe5?! { (30.16 → Mate in 9) Checkmate is now unavoidable. Best move was Ne7. } (18... Ne7 19. Nxf7+) 19. Ra2?! { (Mate in 9 → 20.81) Lost forced checkmate sequence. Best move was Qxc6. } (19. Qxc6 Nf6 20. d4+ Rxd4 21. Ra5+ Rd5 22. Qc7+ Kf5 23. g4+ Kg6 24. Qc2+ Ne4 25. Qxe4+ Kf6) 19... Kd4 20. Ra4 Kd3?! { (21.44 → Mate in 5) Checkmate is now unavoidable. Best move was Re7+. } (20... Re7+ 21. Kf2) 21. Ra3+?! { (Mate in 5 → 24.22) Lost forced checkmate sequence. Best move was Rxb4. } (21. Rxb4 Nf6 22. Qa2 Re8+ 23. Kd1 Re1+ 24. Rxe1 c5 25. Re3#) 21... Kc2?! { (24.22 → Mate in 4) Checkmate is now unavoidable. Best move was bxa3. } (21... bxa3 22. Qxc6) 22. Ke2?! { (Mate in 4 → Mate in 7) Not the best checkmate sequence. Best move was Qa4+. } (22. Qa4+ b3 23. Qxb3+ Kb1 24. Qa2+ Kxc1 25. Rc3#) 22... Re7+ 23. Kf2 Re2+ 24. Kxe2 f6 25. f4?! { (Mate in 2 → Mate in 3) Not the best checkmate sequence. Best move was Qxc6+. } (25. Qxc6+ Kb1 26. Qe4#) 25... Ne7 26. Qxh8?! { (Mate in 2 → Mate in 7) Not the best checkmate sequence. Best move was Qa4+. } (26. Qa4+ Kb1 27. Ra1#) 26... Nf5 27. Qxh7?! { (Mate in 3 → Mate in 5) Not the best checkmate sequence. Best move was Qd8. } (27. Qd8 Nd4+ 28. Qxd4 bxa3 29. Qd3#) 27... bxa3 28. bxa3?! { (Mate in 5 → Mate in 5) Not the best checkmate sequence. Best move was Qxf5+. } (28. Qxf5+ Kb3 29. Qc5 axb2 30. Bxb2 f5 31. Ra1 Kxb2 32. Qc3#) 28... c5 29. Qxf5+ Kb3 30. Qxc5 Ka4 31. Qb4# { White wins by checkmate. } 1-0