lichess dev

[Event "Waitzkin Arena"] [Site "http://chess-academy.net/j1WPA5Tg"] [Date "2026.01.15"] [Round "-"] [White "Ecaterina17"] [Black "ArianaL"] [Result "1-0"] [UTCDate "2026.01.15"] [UTCTime "17:27:33"] [WhiteElo "1255"] [BlackElo "1192"] [WhiteRatingDiff "+83"] [BlackRatingDiff "-9"] [Variant "Standard"] [TimeControl "420+0"] [ECO "C20"] [Opening "Portuguese Opening"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e4 e5 2. Bb5?! { (0.30 → -0.25) Inaccuracy. Best move was Nf3. } { C20 Portuguese Opening } (2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. Re1 Nc5) 2... c6 3. Bc4?! { (-0.30 → -1.13) Inaccuracy. Best move was Be2. } (3. Be2 d5 4. Nf3 Nf6 5. d4 exd4 6. exd5 Bb4+ 7. Nbd2 cxd5) 3... b5? { (-1.13 → 0.72) Mistake. Best move was d5. } (3... d5 4. exd5) 4. Bb3 Na6?! { (0.43 → 1.37) Inaccuracy. Best move was d5. } (4... d5 5. Nf3) 5. Qh5? { (1.37 → -0.35) Mistake. Best move was Nf3. } (5. Nf3 Nc5 6. d4 exd4 7. Nxd4 a5 8. c3 Nxb3 9. axb3 Bc5 10. Nf5 d5 11. Nxg7+ Kf8) 5... g6?? { (-0.35 → 8.97) Blunder. Best move was Qe7. } (5... Qe7 6. Nf3 d6 7. d4 g6 8. Qg5 exd4 9. Qxe7+ Bxe7 10. Nxd4 Bd7 11. O-O Nc5 12. Re1) 6. Qxe5+ Be7 7. Qxh8 d5? { (8.89 → 13.65) Mistake. Best move was Kf8. } (7... Kf8 8. Qxh7) 8. exd5? { (13.65 → 8.96) Mistake. Best move was Qxg8+. } (8. Qxg8+ Bf8 9. exd5 cxd5 10. Nc3 Be6 11. Qxh7 Nc5 12. Nxb5 Nxb3 13. cxb3 Qb6 14. Nc3 d4) 8... cxd5? { (8.96 → 13.60) Mistake. Best move was Kf8. } (8... Kf8) 9. Qxg8+ Bf8 10. d4 Ke7 11. Qxh7 Qa5+ 12. c3 Qc7 13. Bg5+ Kd6 14. Bf4+ Ke6 15. Bxc7 Nxc7 16. Qh3+ Kd6 17. Qh8 Kc6 18. Qxf8 Ne6 19. Qxf7 Rb8 20. Qxa7 Rb7 21. Qa8 Kb6 22. Qxc8 b4?! { (39.71 → Mate in 7) Checkmate is now unavoidable. Best move was Nc7. } (22... Nc7 23. Qd8) 23. cxb4 Kb5 24. a4+?! { (Mate in 1 → Mate in 5) Not the best checkmate sequence. Best move was Qxb7#. } (24. Qxb7#) 24... Kxb4 25. Qxb7+?! { (Mate in 1 → Mate in 1) Not the best checkmate sequence. Best move was Qc3#. } (25. Qc3#) 25... Ka5 26. Qb5# { White wins by checkmate. } 1-0