lichess dev

[Event "ANS Arena"] [Site "http://chess-academy.net/DtB0brUj"] [Date "2026.04.01"] [Round "-"] [White "Automat"] [Black "Topaconstantin"] [Result "1-0"] [UTCDate "2026.04.01"] [UTCTime "16:12:39"] [WhiteElo "1500"] [BlackElo "1662"] [WhiteRatingDiff "+231"] [BlackRatingDiff "-165"] [Variant "Standard"] [TimeControl "90+0"] [ECO "C40"] [Opening "King's Knight Opening"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e4 e5 2. Nf3 { C40 King's Knight Opening } Bd6? { (0.22 → 1.57) Mistake. Best move was Nc6. } (2... Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5) 3. Nc3? { (1.57 → 0.57) Mistake. Best move was c3. } (3. c3 Nf6 4. d4 Nc6 5. Bd3 exd4 6. cxd4 Bb4+ 7. Nbd2 d5 8. e5 Ne4 9. O-O Bf5) 3... Nc6 4. d3?! { (0.79 → -0.09) Inaccuracy. Best move was Bc4. } (4. Bc4 Nf6 5. O-O O-O 6. d3 h6 7. a4 b6 8. Be3 Bb7 9. h3 a6 10. Nh2 Na5) 4... Nd4? { (-0.09 → 1.23) Mistake. Best move was Nf6. } (4... Nf6 5. Be2 h6 6. O-O O-O 7. Be3 b6 8. d4 Bb7 9. d5 Ne7 10. Qd3 Ng6 11. Nd2) 5. Be2? { (1.23 → 0.00) Mistake. Best move was Nxd4. } (5. Nxd4 exd4) 5... Nxf3+? { (0.00 → 1.01) Mistake. Best move was c6. } (5... c6 6. Be3 Qb6 7. Na4 Qa5+ 8. Nc3) 6. Bxf3? { (1.01 → 0.01) Mistake. Best move was gxf3. } (6. gxf3) 6... Bb4? { (0.01 → 1.04) Mistake. Best move was c6. } (6... c6) 7. a3?! { (1.04 → 0.19) Inaccuracy. Best move was O-O. } (7. O-O) 7... Bxc3+ 8. bxc3 Qg5?? { (0.26 → 13.88) Blunder. Best move was d6. } (8... d6 9. O-O) 9. Bxg5 f6 10. d4 fxg5 11. dxe5 g4 12. Bxg4 Nh6 13. O-O Nxg4 14. f3? { (11.54 → 7.84) Mistake. Best move was Qxg4. } (14. Qxg4 O-O 15. Qe2 c6 16. Qc4+ Kh8 17. f4 b6 18. Rad1 Rb8 19. Rf3 Rb7 20. Rd6 b5) 14... Nxe5?! { (7.84 → 8.76) Inaccuracy. Best move was Ne3. } (14... Ne3 15. Qd3) 15. f4?! { (8.76 → 7.78) Inaccuracy. Best move was Qd4. } (15. Qd4 d6) 15... Nf3+? { (7.78 → 10.51) Mistake. Best move was Nf7. } (15... Nf7 16. e5) 16. gxf3 d5 17. f5 Rf8 18. exd5 Rxf5 19. Re1+ Kd7?! { (11.83 → Mate in 6) Checkmate is now unavoidable. Best move was Kf7. } (19... Kf7 20. Qe2) 20. d6?! { (Mate in 6 → 13.71) Lost forced checkmate sequence. Best move was Qe2. } (20. Qe2 Rg5+ 21. Kh1 Kd6 22. Qe7+ Kxd5 23. Qxc7 Rg1+ 24. Kxg1 a6 25. Rad1#) 20... cxd6 21. f4 Rxf4 22. h3 Rf6 23. Kh1?! { (18.17 → 9.35) Inaccuracy. Best move was Qd5. } (23. Qd5 a6 24. Rab1 Rb8 25. Qg8 Rg6+ 26. Kh1 d5 27. Qe8+ Kd6 28. Qd8+ Kc5 29. Qc7+ Rc6) 23... Rf1+?! { (9.35 → 26.22) Inaccuracy. Best move was Kc7. } (23... Kc7 24. Re7+) 24. Rxf1 d5?! { (25.26 → Mate in 4) Checkmate is now unavoidable. Best move was Kc6. } (24... Kc6 25. Qf3+) 25. Rf7+?! { (Mate in 4 → Mate in 8) Not the best checkmate sequence. Best move was Qxd5+. } (25. Qxd5+ Kc7 26. Qc5+ Kd7 27. Rad1+ Ke6 28. Qd6#) 25... Kd6 26. Rxg7?! { (Mate in 7 → 26.85) Lost forced checkmate sequence. Best move was Qe2. } (26. Qe2 Kc6 27. Qe7 Bd7 28. Qxd7+ Kc5 29. Qc7+ Kb5 30. a4+ Ka6 31. Qxb7+ Ka5 32. Qb5#) 26... Kc5?! { (26.85 → Mate in 6) Checkmate is now unavoidable. Best move was Bd7. } (26... Bd7 27. Qd4) 27. Rb1 Kc4 28. Qd4# { White wins by checkmate. } 1-0