lichess dev

[Event "Steinitz Arena"] [Site "http://chess-academy.net/QJDzBcVO"] [Date "2026.01.27"] [Round "-"] [White "LaiuDamian"] [Black "tapesvlad"] [Result "1-0"] [UTCDate "2026.01.27"] [UTCTime "17:00:04"] [WhiteElo "1583"] [BlackElo "1578"] [WhiteRatingDiff "+12"] [BlackRatingDiff "-13"] [Variant "Standard"] [TimeControl "420+0"] [ECO "A40"] [Opening "Horwitz Defense"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. d4 e6 { A40 Horwitz Defense } 2. e3 d6?! { (0.02 → 0.81) Inaccuracy. Best move was d5. } (2... d5 3. Nf3 Nf6 4. Bd3 Be7 5. O-O O-O 6. b3 c5 7. Bb2) 3. Nf3 c5 4. c3 cxd4?! { (0.21 → 0.76) Inaccuracy. Best move was Be7. } (4... Be7 5. e4) 5. cxd4?! { (0.76 → 0.24) Inaccuracy. Best move was exd4. } (5. exd4 Be7) 5... Nf6 6. Na3? { (0.73 → -0.28) Mistake. Best move was Bd3. } (6. Bd3) 6... d5?! { (-0.28 → 0.24) Inaccuracy. Best move was Nc6. } (6... Nc6 7. Nb5 Be7 8. Nc3 O-O 9. e4 Bd7 10. Be2 d5 11. e5 Ne4 12. O-O Nxc3 13. bxc3) 7. Bd2?! { (0.24 → -0.42) Inaccuracy. Best move was Bd3. } (7. Bd3 Be7 8. Nb1 Nc6 9. Nc3 O-O 10. Bd2 a6 11. O-O b5 12. Rc1 Bb7 13. h3 b4) 7... Bxa3?! { (-0.42 → 0.49) Inaccuracy. Best move was a6. } (7... a6 8. Bd3 Nc6 9. Nb1 Bd6 10. Nc3 O-O 11. O-O Bd7 12. Rc1 Rc8 13. e4 Nb4 14. Bb1) 8. bxa3 O-O 9. Ng5?! { (0.57 → -0.34) Inaccuracy. Best move was Bb5. } (9. Bb5 Bd7 10. Bd3 Nc6 11. O-O Ne4 12. Rb1 Rb8 13. Qc2 Nxd2 14. Qxd2 Qe7 15. a4 a5) 9... Ng4?? { (-0.34 → 5.01) Blunder. Best move was Nc6. } (9... Nc6 10. Be2) 10. Qxg4 e5 11. Qh4? { (4.98 → 3.74) Mistake. Best move was Qg3. } (11. Qg3 h6) 11... exd4?? { (3.74 → Mate in 1) Checkmate is now unavoidable. Best move was h6. } (11... h6 12. Nf3 Qxh4 13. Nxh4 e4 14. g3 g5 15. Ng2 Bh3 16. Kd1 Nd7 17. Rb1 b6 18. Ne1) 12. Qxh7# { White wins by checkmate. } 1-0