lichess dev

[Event "Matei2017 Arena"] [Site "http://chess-academy.net/X1CmccXo"] [Date "2025.07.02"] [Round "-"] [White "david34"] [Black "ioan20"] [Result "0-1"] [UTCDate "2025.07.02"] [UTCTime "15:40:57"] [WhiteElo "1374"] [BlackElo "1635"] [WhiteRatingDiff "-22"] [BlackRatingDiff "+8"] [Variant "Standard"] [TimeControl "420+0"] [ECO "A40"] [Opening "Horwitz Defense"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. d4 e6 { A40 Horwitz Defense } 2. f4?! { (0.38 → -0.54) Inaccuracy. Best move was e4. } (2. e4 d5 3. exd5 exd5 4. Nf3 Nf6 5. Bd3 c5 6. O-O c4) 2... Nf6?! { (-0.54 → 0.00) Inaccuracy. Best move was c5. } (2... c5 3. e3 Nf6 4. Nf3 Be7 5. Bd3 d5 6. O-O O-O 7. b3 b6 8. dxc5 Bxc5 9. Nd4) 3. Nh3?! { (0.00 → -0.84) Inaccuracy. Best move was e3. } (3. e3 c5) 3... Ne4? { (-0.84 → 0.47) Mistake. Best move was d5. } (3... d5) 4. Qd3? { (0.47 → -0.97) Mistake. Best move was Nd2. } (4. Nd2) 4... f6?? { (-0.97 → 4.40) Blunder. Best move was f5. } (4... f5 5. Nd2 d5 6. Nxe4 fxe4 7. Qg3 g6 8. Bd2 Nc6 9. e3 Be7 10. Ng5 h6 11. Qh3) 5. Qxe4 f5?! { (3.94 → 4.70) Inaccuracy. Best move was d5. } (5... d5 6. Qf3 c5 7. e3 Be7 8. Nc3 O-O 9. dxc5 Nd7 10. Bd2 f5 11. O-O-O Nxc5 12. Nf2) 6. Qd3 c5? { (4.25 → 5.63) Mistake. Best move was Be7. } (6... Be7 7. e3 d5 8. Nd2 c5 9. dxc5 O-O 10. Be2 a5 11. Nf3 Na6 12. O-O Nxc5 13. Qd1) 7. dxc5? { (5.63 → 4.20) Mistake. Best move was d5. } (7. d5) 7... Bxc5?! { (4.20 → 4.91) Inaccuracy. Best move was Na6. } (7... Na6) 8. Qc3? { (4.91 → 3.81) Mistake. Best move was Be3. } (8. Be3) 8... b6?? { (3.81 → 6.82) Blunder. Best move was Qe7. } (8... Qe7 9. a3) 9. Nf2?? { (6.82 → 3.36) Blunder. Best move was Qxg7. } (9. Qxg7 Rf8 10. Qxh7 Qe7 11. Qh5+ Kd8 12. e3 d5 13. Nc3 Nd7 14. Bd2 Nf6 15. Qe2 Bd7) 9... Qh4? { (3.36 → 4.46) Mistake. Best move was O-O. } (9... O-O 10. e3 Na6 11. a3 Be7 12. Be2 Qe8 13. Qd2 Bb7 14. O-O d6 15. Qd1 Nc5 16. Nd2) 10. g3?! { (4.46 → 3.90) Inaccuracy. Best move was Be3. } (10. Be3 Qe7) 10... Qe7 11. b4?? { (4.52 → -5.89) Blunder. Best move was Qf3. } (11. Qf3) 11... Bxf2+?? { (-5.89 → 4.95) Blunder. Best move was Bxb4. } (11... Bxb4 12. Bg2) 12. Kxf2 Nc6? { (4.47 → 5.81) Mistake. Best move was O-O. } (12... O-O) 13. b5?! { (5.81 → 5.11) Inaccuracy. Best move was Bg2. } (13. Bg2) 13... Nd8?! { (5.11 → 5.74) Inaccuracy. Best move was Na5. } (13... Na5 14. Bg2) 14. Qe5? { (5.74 → 4.33) Mistake. Best move was Bg2. } (14. Bg2 Bb7 15. Ba3 Qf6 16. Qd3 Bxg2 17. Kxg2 Rc8 18. Nd2 Nf7 19. Qb3 Qc3 20. Bb4 Qxc2) 14... O-O? { (4.33 → 7.24) Mistake. Best move was d6. } (14... d6 15. Qe3) 15. Bh3?? { (7.24 → 3.75) Blunder. Best move was Ba3. } (15. Ba3 Qe8 16. Bxf8 Kxf8 17. Bg2 Bb7 18. Qd6+ Qe7 19. Qxe7+ Kxe7 20. Bxb7 Nxb7 21. Nd2 Rc8) 15... Nf7? { (3.75 → 4.78) Mistake. Best move was d6. } (15... d6) 16. Bxf5?? { (4.78 → -10.89) Blunder. Best move was Qc7. } (16. Qc7 Qf6 17. Qc3 Qxc3 18. Nxc3 d5 19. Be3 Bd7 20. a4 Rac8 21. Bd4 Rc4 22. Rhd1 Rfc8) 16... Nxe5 17. fxe5 Rxf5+ 18. Ke1 Bb7 19. Ba3 Qg5 20. e4?! { (-17.36 → Mate in 6) Checkmate is now unavoidable. Best move was Nc3. } (20. Nc3 Bxh1) 20... Bxe4 21. g4 Qxg4?! { (Mate in 2 → Mate in 7) Not the best checkmate sequence. Best move was Qe3+. } (21... Qe3+ 22. Kd1 Bf3#) 22. Nc3 Bxh1 23. h3 Qxh3?! { (Mate in 5 → Mate in 7) Not the best checkmate sequence. Best move was Rxe5+. } (23... Rxe5+ 24. Kd2 Qd4+ 25. Kc1 Qxc3 26. Kb1 Re1+ 27. Bc1 Qb4#) 24. Kd1 Qxc3?! { (Mate in 2 → Mate in 3) Not the best checkmate sequence. Best move was Qe3. } (24... Qe3 25. Nb1 Rf1#) 25. Kc1 Qxa3+?! { (Mate in 1 → Mate in 3) Not the best checkmate sequence. Best move was Rf1#. } (25... Rf1#) 26. Kb1 Rf1# { Black wins by checkmate. } 0-1