lichess dev

[Event "Open Arena"] [Site "http://chess-academy.net/TxAilkgI"] [Date "2021.02.10"] [Round "-"] [White "Diamantio"] [Black "Marius"] [Result "1-0"] [UTCDate "2021.02.10"] [UTCTime "17:37:08"] [WhiteElo "1644"] [BlackElo "1663"] [WhiteRatingDiff "+116"] [BlackRatingDiff "-10"] [Variant "Standard"] [TimeControl "420+2"] [ECO "A43"] [Opening "Franco-Benoni Defense"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e4 e6 2. d4 c5?! { (0.05 → 0.74) Inaccuracy. Best move was d5. } (2... d5 3. exd5 exd5 4. Nf3 Nf6 5. Bd3 Bd6 6. Nc3 O-O 7. O-O) 3. d5 { A43 Franco-Benoni Defense } exd5?! { (0.36 → 1.30) Inaccuracy. Best move was Nf6. } (3... Nf6) 4. Qxd5? { (1.30 → -0.43) Mistake. Best move was exd5. } (4. exd5 Nf6) 4... Qf6? { (-0.43 → 2.34) Mistake. Best move was Nf6. } (4... Nf6 5. Qd3 d5 6. exd5 Nxd5 7. Nc3 Be6 8. Nxd5 Qxd5 9. Qxd5 Bxd5 10. Be3 Nc6 11. O-O-O) 5. Bc4? { (2.34 → 1.06) Mistake. Best move was Nc3. } (5. Nc3 Qe6 6. Qd3 Na6 7. Qe2 Ne7 8. Be3 Nc6 9. O-O-O Nab4 10. Kb1 Nd4 11. Bxd4 cxd4) 5... Nh6? { (1.06 → 3.08) Mistake. Best move was Ne7. } (5... Ne7 6. Qd3 Nbc6 7. Nf3 Ng6 8. Nc3 Nce5 9. Nxe5 Nxe5 10. Qe2 Nxc4 11. Qxc4 Qc6 12. O-O) 6. e5? { (3.08 → 1.81) Mistake. Best move was Nc3. } (6. Nc3) 6... Qf5 7. Bxh6 gxh6 8. g4 Qg6 9. h4? { (2.07 → 0.67) Mistake. Best move was Na3. } (9. Na3 Nc6) 9... Qg7?? { (0.67 → 4.32) Blunder. Best move was Nc6. } (9... Nc6 10. Nc3) 10. h5?? { (4.32 → -0.21) Blunder. Best move was Nc3. } (10. Nc3 Nc6) 10... f6?? { (-0.21 → 2.83) Blunder. Best move was Nc6. } (10... Nc6 11. Nc3 Qxe5+ 12. Nge2 Qxd5 13. Bxd5 d6 14. f3 Be6 15. Nf4 Nd4 16. Be4 O-O-O 17. Ncd5) 11. exf6? { (2.83 → 1.63) Mistake. Best move was Nc3. } (11. Nc3) 11... Qxf6 12. Nf3? { (2.15 → -0.27) Mistake. Best move was Nc3. } (12. Nc3 Qe6+) 12... Na6?? { (-0.27 → 3.17) Blunder. Best move was Qxb2. } (12... Qxb2 13. Kd2) 13. g5?? { (3.17 → -0.44) Blunder. Best move was Nc3. } (13. Nc3 Nc7 14. Qe4+ Qe7 15. O-O-O Qxe4 16. Nxe4 Be7 17. Rhe1 Ne6 18. Ng3 Rb8 19. Bb5 a6) 13... hxg5? { (-0.44 → 1.67) Mistake. Best move was Qe7+. } (13... Qe7+ 14. Qe5 Qxe5+ 15. Nxe5 Bg7 16. f4 Rf8 17. Nd2 d6 18. Nd3 Bg4 19. Rh4 Bf5 20. O-O-O) 14. Nxg5? { (1.67 → -1.18) Mistake. Best move was Bxa6. } (14. Bxa6) 14... Qxg5?? { (-1.18 → 16.16) Blunder. Best move was Nb4. } (14... Nb4 15. Qf7+ Qxf7 16. Nxf7 Rg8 17. Nd6+ Bxd6 18. Bxg8 Nxc2+ 19. Kd2 Nxa1 20. Nc3 Bf4+ 21. Kd3) 15. Qxg5 Nb4 16. Na3 Nc6 17. Nb5 Ne7?! { (22.33 → Mate in 7) Checkmate is now unavoidable. Best move was Be7. } (17... Be7 18. Qg7) 18. O-O-O?! { (Mate in 7 → 30.24) Lost forced checkmate sequence. Best move was Bf7+. } (18. Bf7+ Kxf7 19. Nd6+ Ke6 20. O-O-O Nd5 21. Qxd5+ Kf6 22. Qf7+ Kg5 23. Rdg1+ Kh6 24. Qf6#) 18... Kd8?! { (30.24 → Mate in 7) Checkmate is now unavoidable. Best move was d5. } (18... d5 19. Nc7+) 19. Bf7 a6 20. Nc3?! { (Mate in 4 → 21.97) Lost forced checkmate sequence. Best move was Qf6. } (20. Qf6 Bh6+ 21. Kb1 d6 22. Qxd6+ Bd7 23. Qxd7#) 20... Kc7 21. Qxc5+ Nc6 22. Nd5+ Kb8 23. Qe3 Bg7 24. Qf4+ Be5 25. Qe4 Rf8 26. f4 Rxf7 27. fxe5 Ka7 28. e6 dxe6 29. Qe3+ Kb8 30. Nb6 Ra7?! { (17.24 → Mate in 9) Checkmate is now unavoidable. Best move was Rf8. } (30... Rf8 31. Rhf1) 31. Rhg1 Rf8 32. Qg3+ e5 33. Qg7 Re8 34. Qf7 Re7 35. Rg8 Kc7 36. Rxc8+ Kxb6 37. Qb3+ Kc5 38. Rd5# { White wins by checkmate. } 1-0