lichess dev

[Event "Korchnoi Arena"] [Site "http://chess-academy.net/uJ1RnDmS"] [Date "2025.03.18"] [Round "-"] [White "LaiuDamian"] [Black "Daniel11"] [Result "0-1"] [UTCDate "2025.03.18"] [UTCTime "17:52:17"] [WhiteElo "1252"] [BlackElo "1371"] [WhiteRatingDiff "-8"] [BlackRatingDiff "+19"] [Variant "Standard"] [TimeControl "600+0"] [ECO "A40"] [Opening "Horwitz Defense"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. d4 e6 { A40 Horwitz Defense } 2. e3 Qf6? { (0.02 → 1.14) Mistake. Best move was d5. } (2... d5 3. Nf3 Nf6 4. Bd3 Be7 5. O-O O-O 6. b3 c5 7. Bb2) 3. g3?! { (1.14 → 0.48) Inaccuracy. Best move was c4. } (3. c4 d5) 3... Bb4+? { (0.48 → 1.50) Mistake. Best move was Qd8. } (3... Qd8) 4. c3 Ba5 5. b4?! { (1.52 → 0.83) Inaccuracy. Best move was Nf3. } (5. Nf3 d6) 5... Bb6 6. c4 Nh6?? { (0.91 → 4.36) Blunder. Best move was c6. } (6... c6 7. Bg2 d5 8. Nf3 Ne7 9. O-O O-O 10. Ba3 Nd7 11. Nbd2 e5 12. Nxe5 Nxe5 13. dxe5) 7. h4?? { (4.36 → 0.87) Blunder. Best move was c5. } (7. c5) 7... Ng4?? { (0.87 → 5.36) Blunder. Best move was c6. } (7... c6 8. c5) 8. f3?? { (5.36 → 1.86) Blunder. Best move was Qxg4. } (8. Qxg4) 8... Nh6? { (1.86 → 3.95) Mistake. Best move was c5. } (8... c5 9. fxg4) 9. Bh3?? { (3.95 → 0.67) Blunder. Best move was c5. } (9. c5 Nf5) 9... Nc6? { (0.67 → 2.69) Mistake. Best move was a6. } (9... a6 10. Nc3) 10. Bxe6?? { (2.69 → -3.00) Blunder. Best move was c5. } (10. c5 Nxb4 11. cxb6 axb6 12. Bd2 c5 13. Bxb4 cxb4 14. Nd2 O-O 15. f4 d5 16. Ngf3 Bd7) 10... fxe6?! { (-3.00 → -2.09) Inaccuracy. Best move was Nxd4. } (10... Nxd4) 11. e4?? { (-2.09 → -9.36) Blunder. Best move was c5. } (11. c5) 11... Nxb4? { (-9.36 → -6.58) Mistake. Best move was Qxd4. } (11... Qxd4 12. c5) 12. g4? { (-6.58 → -9.25) Mistake. Best move was Bb2. } (12. Bb2 Nc6) 12... O-O?! { (-9.25 → -8.41) Inaccuracy. Best move was Qxd4. } (12... Qxd4 13. Qxd4) 13. c5?! { (-8.41 → -9.12) Inaccuracy. Best move was a3. } (13. a3 Qxd4 14. Qxd4 Bxd4 15. axb4 Bxa1 16. Bxh6 gxh6 17. Rh2 Be5 18. Rg2 Bd6 19. b5 a6) 13... Nc6?? { (-9.12 → -3.68) Blunder. Best move was Bxc5. } (13... Bxc5 14. dxc5 Qxa1 15. Qb3 Qxa2 16. Qxa2 Nxa2 17. Bxh6 gxh6 18. Kd2 Nb4 19. Kc3 Na6 20. Kc4) 14. f4?? { (-3.68 → -9.43) Blunder. Best move was cxb6. } (14. cxb6) 14... Nxg4?? { (-9.43 → -5.34) Blunder. Best move was Ba5+. } (14... Ba5+) 15. f5?? { (-5.34 → -12.29) Blunder. Best move was cxb6. } (15. cxb6 Qxd4 16. Qxd4 Nxd4 17. Na3 axb6 18. Ne2 Ra4 19. Nxd4 Rxd4 20. O-O Rxe4 21. Nb5 Rc4) 15... Nh6?? { (-12.29 → -4.99) Blunder. Best move was Ba5+. } (15... Ba5+ 16. Kf1) 16. d5?? { (-4.99 → -12.82) Blunder. Best move was cxb6. } (16. cxb6 Nxf5 17. exf5 Qxf5 18. Qf3 Qb5 19. Qe4 Rf1+ 20. Kd2 Qb4+ 21. Nc3 d5 22. Qd3 Qf8) 16... Nd4?? { (-12.82 → -5.85) Blunder. Best move was Ba5+. } (16... Ba5+) 17. e5?? { (-5.85 → -21.58) Blunder. Best move was cxb6. } (17. cxb6 Qe5 18. Qd3 Ng4 19. Rh3 exf5 20. Bb2 Nf3+ 21. Rxf3 Qxb2 22. Qc3 Qh2 23. Qd4 Qxh4+) 17... Qxe5+ 18. Qe2 Nxe2 19. Kf1?! { (-27.08 → Mate in 6) Checkmate is now unavoidable. Best move was Nxe2. } (19. Nxe2 Ba5+) 19... Qxa1?! { (Mate in 6 → -32.56) Lost forced checkmate sequence. Best move was Rxf5+. } (19... Rxf5+ 20. Bf4 Rxf4+ 21. Ke1 Nxg1+ 22. Kd2 Rf2+ 23. Kd3 Qxd5+ 24. Kc3 Ba5#) 20. Nc3?! { (-32.56 → Mate in 8) Checkmate is now unavoidable. Best move was Kxe2. } (20. Kxe2 Qe5+) 20... Nxc3 21. Kg2 Bxc5 22. Kg3 Qxc1 23. Kg2 Qf4 24. Kh3 Bd6?! { (Mate in 2 → Mate in 3) Not the best checkmate sequence. Best move was Qg4+. } (24... Qg4+ 25. Kh2 Bd6#) 25. Nf3 Qg3# { Black wins by checkmate. } 0-1