lichess dev

[Event "Korchnoi Arena"] [Site "http://chess-academy.net/C4zHr4eA"] [Date "2025.03.18"] [Round "-"] [White "cezar8"] [Black "dnielbostn"] [Result "0-1"] [UTCDate "2025.03.18"] [UTCTime "17:52:17"] [WhiteElo "1021"] [BlackElo "1163"] [WhiteRatingDiff "-9"] [BlackRatingDiff "+21"] [Variant "Standard"] [TimeControl "600+0"] [ECO "B20"] [Opening "Sicilian Defense"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e4 c5 { B20 Sicilian Defense } 2. Qf3? { (0.53 → -0.70) Mistake. Best move was Ne2. } (2. Ne2 Nf6 3. Nbc3 d5 4. exd5 Nxd5 5. Nxd5 Qxd5 6. Nc3 Qe5+) 2... Nc6 3. Qh3? { (-0.38 → -1.84) Mistake. Best move was c3. } (3. c3) 3... g5? { (-1.84 → -0.08) Mistake. Best move was d5. } (3... d5 4. Qe3 Nf6 5. Bb5 Bd7 6. Bxc6 Bxc6 7. Nf3 Ng4 8. Qe2 dxe4 9. Ng5 f5 10. Qc4) 4. Qf5? { (-0.08 → -1.43) Mistake. Best move was Qb3. } (4. Qb3) 4... Nd4?? { (-1.43 → 1.61) Blunder. Best move was e6. } (4... e6 5. Qf3) 5. Qxc5 Rb8?? { (0.96 → 10.10) Blunder. Best move was Bg7. } (5... Bg7) 6. Qxd4 Nf6 7. Qe5?? { (10.17 → 5.49) Blunder. Best move was Qxa7. } (7. Qxa7 Qc7 8. Nc3 d5 9. Nb5 Qe5 10. d3 Nd7 11. Nf3 Qg7 12. Nxg5 e5 13. Nc7+ Ke7) 7... d6 8. Qa5?? { (5.95 → -8.38) Blunder. Best move was Qxg5. } (8. Qxg5 Nxe4 9. Qe3 Nf6 10. c4 a6 11. Nc3 Rg8 12. Nf3 Bd7 13. h3 b5 14. d3 Rc8) 8... Qxa5 9. a4? { (-8.00 → -9.39) Mistake. Best move was Nc3. } (9. Nc3 Bg7) 9... Nxe4 10. b4? { (-8.85 → -13.75) Mistake. Best move was Bb5+. } (10. Bb5+ Bd7) 10... Qxb4 11. Na3 Qxa4?? { (-17.21 → -2.89) Blunder. Best move was Qd4. } (11... Qd4 12. Bb5+) 12. Bb2?? { (-2.89 → -11.30) Blunder. Best move was Bb5+. } (12. Bb5+ Qxb5) 12... f6?? { (-11.30 → -2.78) Blunder. Best move was Qb4. } (12... Qb4 13. Nc4 e5 14. Bd3 Be6 15. Bxe4 Qxc4 16. f3 f5 17. Bd3 Qc6 18. Bc3 a6 19. Ne2) 13. Bc3?? { (-2.78 → -14.88) Blunder. Best move was Bb5+. } (13. Bb5+ Qxb5 14. Nxb5 a6 15. f3 Nc5 16. Nc7+ Kf7 17. d4 Ne6 18. Nd5 Nf4 19. Ne3 Bd7) 13... Nxc3 14. dxc3 Qe4+ 15. Be2 b5 16. O-O-O b4 17. cxb4 Qxb4 18. Rd3 Qb2+ 19. Kd1 Qa1+ 20. Kd2 e6 21. Bf1 Qxf1 22. Re3 d5 23. Rxe6+?! { (-30.23 → Mate in 9) Checkmate is now unavoidable. Best move was Nf3. } (23. Nf3 Qxh1) 23... Be7?! { (Mate in 9 → -26.17) Lost forced checkmate sequence. Best move was Bxe6. } (23... Bxe6 24. Ne2 Qxh1 25. Nb5 Rxb5 26. h3 Rb1 27. Ke3 Bc5+ 28. Kf3 Qe1 29. Kg3 Qxf2+ 30. Kh2) 24. Rxe7+ Kxe7 25. Nb5?! { (-27.56 → Mate in 10) Checkmate is now unavoidable. Best move was h4. } (25. h4 Qxg2) 25... Rxb5 26. c4?! { (-76.85 → Mate in 4) Checkmate is now unavoidable. Best move was h4. } (26. h4 Qxg2) 26... Qxf2+?! { (Mate in 4 → Mate in 5) Not the best checkmate sequence. Best move was Rb2+. } (26... Rb2+ 27. Kc3 Qc1+ 28. Kd4 Qxc4+ 29. Ke3 Qc3#) 27. Ne2 Rb2+ 28. Kd1 Rb1+?! { (Mate in 2 → Mate in 5) Not the best checkmate sequence. Best move was Qxe2+. } (28... Qxe2+ 29. Kc1 Qc2#) 29. Kc2 Rxh1?! { (Mate in 4 → Mate in 5) Not the best checkmate sequence. Best move was Bf5+. } (29... Bf5+ 30. Kd2 Rb2+ 31. Kc3 Rhb8 32. Nd4 Qd2#) 30. Kd2 dxc4 31. Kc2 Qxe2+?! { (Mate in 3 → Mate in 3) Not the best checkmate sequence. Best move was Qe3. } (31... Qe3 32. g3 Qb3+ 33. Kd2 Rd1#) 32. Kc3 Rxh2?! { (Mate in 3 → Mate in 4) Not the best checkmate sequence. Best move was Rb1. } (32... Rb1 33. Kd4 Qe5+ 34. Kxc4 Ba6#) 33. Kb4 Rxg2?! { (Mate in 4 → Mate in 4) Not the best checkmate sequence. Best move was Qb2+. } (33... Qb2+ 34. Kxc4 Rd8 35. Kc5 Rxg2 36. Kc6 Rc2#) 34. Kc5 Qe5+ 35. Kc6 Qe6+?! { (Mate in 3 → Mate in 3) Not the best checkmate sequence. Best move was Qd6+. } (35... Qd6+ 36. Kb5 Ba6+ 37. Ka5 Ra2#) 36. Kc7 Qd7+?! { (Mate in 1 → Mate in 1) Not the best checkmate sequence. Best move was Qb6#. } (36... Qb6#) 37. Kb8 Qb7# { Black wins by checkmate. } 0-1