lichess dev

[Event "Masterclass Arena"] [Site "http://chess-academy.net/sbcttVpE"] [Date "2022.02.22"] [Round "-"] [White "Artemy_Denisenko"] [Black "SofiaStangu"] [Result "1-0"] [UTCDate "2022.02.22"] [UTCTime "15:27:57"] [WhiteElo "1871"] [BlackElo "1483"] [WhiteRatingDiff "+17"] [BlackRatingDiff "-3"] [Variant "Standard"] [TimeControl "420+1"] [ECO "A40"] [Opening "Englund Gambit"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. d4 e5?! { (0.15 → 1.06) Inaccuracy. Best move was d5. } { A40 Englund Gambit } (1... d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Bb4 5. Bg5 O-O 6. e3) 2. dxe5 Bb4+?! { (1.15 → 1.76) Inaccuracy. Best move was Nc6. } (2... Nc6 3. Nf3 d6 4. Bg5 Qd7 5. exd6 Bxd6 6. Nc3 h6 7. Bh4) 3. Bd2 Bc5 4. Nc3 Qh4? { (1.31 → 2.87) Mistake. Best move was Nc6. } (4... Nc6) 5. g3?! { (2.87 → 1.98) Inaccuracy. Best move was e3. } (5. e3) 5... Qh5? { (1.98 → 3.44) Mistake. Best move was Qd8. } (5... Qd8 6. Bg2) 6. Nf3? { (3.44 → 2.32) Mistake. Best move was Nd5. } (6. Nd5 Na6) 6... f5? { (2.32 → 4.87) Mistake. Best move was Ne7. } (6... Ne7 7. Nb5) 7. exf6?? { (4.87 → 1.59) Blunder. Best move was Nd5. } (7. Nd5) 7... gxf6? { (1.59 → 4.10) Mistake. Best move was Nxf6. } (7... Nxf6 8. Bg5 Be7 9. h4 d6 10. Qd2 O-O 11. O-O-O Nbd7 12. Kb1 c6 13. a3 d5 14. Bg2) 8. Bg2? { (4.10 → 2.59) Mistake. Best move was e4. } (8. e4) 8... f5?? { (2.59 → 8.46) Blunder. Best move was d6. } (8... d6 9. Nh4 Ne7 10. Ne4 Nd7 11. c4 Bd4 12. O-O Bxb2 13. Rb1 Bd4 14. Bb4 Nc6 15. Bc3) 9. O-O?? { (8.46 → 3.86) Blunder. Best move was Nd5. } (9. Nd5 Na6 10. Bc3 c6 11. b4 Qf7 12. bxc5 Qxd5 13. Qxd5 cxd5 14. Bxh8 Nxc5 15. Nd4 Ne7) 9... f4? { (3.86 → 6.15) Mistake. Best move was Nf6. } (9... Nf6 10. Bg5 Be7 11. Qd3 Na6 12. Qe3 Qf7 13. Nd4 Ng4 14. Qxe7+ Qxe7 15. Bxe7 Kxe7 16. Nxf5+) 10. Bxf4 Nf6 11. Bxc7?! { (6.33 → 5.68) Inaccuracy. Best move was Ng5. } (11. Ng5 Nc6) 11... Na6? { (5.68 → 8.04) Mistake. Best move was O-O. } (11... O-O 12. Bd6 Bxd6 13. Qxd6 Nc6 14. Rad1 Qf7 15. Ng5 Qe7 16. Nce4 Nxe4 17. Nxe4 Qxd6 18. Nxd6) 12. Bd6 Bb6? { (7.92 → 9.60) Mistake. Best move was Bxd6. } (12... Bxd6 13. Qxd6) 13. Nb5?? { (9.60 → 4.69) Blunder. Best move was Ne5. } (13. Ne5 Rg8) 13... Ne4?? { (4.69 → 11.50) Blunder. Best move was Qxb5. } (13... Qxb5 14. Nd4) 14. e3? { (11.50 → 7.02) Mistake. Best move was Ne5. } (14. Ne5) 14... Nxd6? { (7.02 → 9.79) Mistake. Best move was Qxb5. } (14... Qxb5 15. Nd4) 15. Nxd6+ Ke7?! { (9.05 → 9.74) Inaccuracy. Best move was Kd8. } (15... Kd8 16. Qd2) 16. Nxc8+?? { (9.74 → 6.03) Blunder. Best move was Qd2. } (16. Qd2 Nc5) 16... Ke6?? { (6.03 → Mate in 9) Checkmate is now unavoidable. Best move was Raxc8. } (16... Raxc8 17. Qd2 d5 18. Rad1 Rhd8 19. a4 Kf8 20. Nd4 Rd6 21. f4 Qf7 22. f5 Bxd4 23. exd4) 17. Nxb6?! { (Mate in 9 → 20.84) Lost forced checkmate sequence. Best move was Qd6+. } (17. Qd6+ Kf7 18. Ne5+ Qxe5 19. Qxe5 Rhxc8 20. Bd5+ Kf8 21. Qf6+ Ke8 22. Bf7+ Kf8 23. Bg6+ Kg8) 17... axb6 18. Nd4+ Ke5?! { (29.62 → Mate in 6) Checkmate is now unavoidable. Best move was Ke7. } (18... Ke7 19. Qxh5) 19. Qxh5+ Kd6 20. Bxb7?! { (Mate in 5 → 31.34) Lost forced checkmate sequence. Best move was Nb5+. } (20. Nb5+ Ke6 21. Bd5+ Kf6 22. Qf7+ Kg5 23. Qg7+ Kf5 24. e4#) 20... Rab8?! { (31.34 → Mate in 5) Checkmate is now unavoidable. Best move was Kc7. } (20... Kc7 21. Bxa6) 21. Bxa6?! { (Mate in 5 → Mate in 9) Not the best checkmate sequence. Best move was Nb5+. } (21. Nb5+ Ke7 22. Qg5+ Kf7 23. Bd5+ Kf8 24. Qf6+ Ke8 25. Nd6#) 21... Rbf8 22. Nf5+ Kd5 23. Ne7+?! { (Mate in 4 → Mate in 8) Not the best checkmate sequence. Best move was Rad1+. } (23. Rad1+ Ke6 24. Rd6+ Ke5 25. f4+ Ke4 26. Bd3#) 23... Kd6 24. Nf5+ Kc5 25. Nh6+?! { (Mate in 5 → Mate in 6) Not the best checkmate sequence. Best move was Rfd1. } (25. Rfd1 d5 26. Qh6 Rxf5 27. Rd4 Rf6 28. Qxf6 b5 29. b4#) 25... Kc6 26. Qb5+?! { (Mate in 5 → Mate in 5) Not the best checkmate sequence. Best move was Rfd1. } (26. Rfd1 Rf5 27. Qxf5 d6 28. Qd5+ Kd7 29. Qxd6+ Ke8 30. Bb5#) 26... Kd6 27. Rfd1+ Ke6 28. Qxd7+ Ke5 29. Qd4+?! { (Mate in 1 → Mate in 1) Not the best checkmate sequence. Best move was Qe7#. } (29. Qe7#) 29... Ke6 30. Qxb6+?! { (Mate in 1 → Mate in 2) Not the best checkmate sequence. Best move was Qd6#. } (30. Qd6#) 30... Ke5 31. Qd6+ Ke4 32. Rd4+?! { (Mate in 1 → Mate in 1) Not the best checkmate sequence. Best move was Qd5#. } (32. Qd5#) 32... Kf3 33. Rf4+?! { (Mate in 1 → Mate in 1) Not the best checkmate sequence. Best move was Qd5#. } (33. Qd5#) 33... Rxf4 34. Qxf4# { White wins by checkmate. } 1-0