lichess dev

[Event "Open Arena"] [Site "http://chess-academy.net/aF1gCZaz"] [Date "2020.11.25"] [Round "-"] [White "Mara"] [Black "GrigoreG"] [Result "1-0"] [UTCDate "2020.11.25"] [UTCTime "17:46:22"] [WhiteElo "1672"] [BlackElo "1609"] [WhiteRatingDiff "+18"] [BlackRatingDiff "-10"] [Variant "Standard"] [TimeControl "420+2"] [ECO "A40"] [Opening "Horwitz Defense"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. d4 e6 { A40 Horwitz Defense } 2. d5? { (0.38 → -1.03) Mistake. Best move was e4. } (2. e4 d5 3. exd5 exd5 4. Nf3 Nf6 5. Bd3 c5 6. O-O c4) 2... exd5 3. Qxd5 c6? { (-0.96 → 0.09) Mistake. Best move was Nf6. } (3... Nf6 4. Qd1 d5 5. Nf3 Nc6 6. e3 Be6 7. Be2 Ne4 8. Nc3) 4. Qe4+? { (0.09 → -1.13) Mistake. Best move was Qe5+. } (4. Qe5+ Ne7 5. e4 d5 6. Nf3 Be6 7. Qd4 Qb6 8. Qxb6 axb6 9. Nc3 dxe4 10. Nxe4 Nf5) 4... Be7 5. Qe5? { (-0.95 → -2.19) Mistake. Best move was Qg4. } (5. Qg4 g6 6. e4 d5 7. Qe2 dxe4 8. Nc3 Nf6 9. Bh6 Bf5 10. f3 Be6 11. Qd2 Qxd2+) 5... f6?? { (-2.19 → 1.00) Blunder. Best move was Nf6. } (5... Nf6 6. Nc3 O-O 7. Nf3 Re8 8. Qd4 d5 9. e3 Nbd7 10. Bd3 Nc5 11. O-O Nxd3 12. cxd3) 6. Qg3 d5?? { (0.28 → 7.87) Blunder. Best move was f5. } (6... f5) 7. Qxg7 Bb4+?! { (7.86 → 8.59) Inaccuracy. Best move was Bf5. } (7... Bf5 8. Qxh8 Kf7 9. e4 Bxe4 10. Be2 Bg6 11. Bh5 Bxh5 12. Qxh7+ Kf8 13. Qxh5 Qe8 14. Bh6+) 8. c3 Ba5 9. Qxh8 Be6 10. b4?! { (8.80 → 8.23) Inaccuracy. Best move was Nh3. } (10. Nh3 h6 11. Bxh6 Nd7 12. Nd2 Bf7 13. O-O-O Nf8 14. Bxf8 Kxf8 15. e3 c5 16. Bd3 Bc7) 10... Bb6 11. Qxh7 Nd7 12. Nh3?! { (8.59 → 8.09) Inaccuracy. Best move was Nf3. } (12. Nf3 a5) 12... Qc7?! { (8.09 → 8.77) Inaccuracy. Best move was Qe7. } (12... Qe7 13. Qxe7+ Nxe7 14. Nf4 Bf5 15. Nd2 a5 16. Bb2 Kf7 17. g3 Ng6 18. Nxg6 Bxg6 19. c4) 13. Nf4 O-O-O? { (8.36 → 18.64) Mistake. Best move was Bf7. } (13... Bf7) 14. Nxe6 Qd6 15. Nxd8 Bxd8 16. Qxg8 Ne5 17. Bf4 d4 18. g3 dxc3 19. Nxc3 Qxb4 20. Qe6+ Kc7?! { (23.24 → Mate in 14) Checkmate is now unavoidable. Best move was Nd7. } (20... Nd7 21. Bd2) 21. Bxe5+ fxe5 22. Qxe5+ Kb6 23. Rb1 Qxb1+ 24. Nxb1 Bc7 25. Qd4+ c5 26. Qf6+ Kb5 27. Nc3+ Kc4 28. e3+ Kb4 29. Nd5+?! { (Mate in 4 → Mate in 5) Not the best checkmate sequence. Best move was Qf7. } (29. Qf7 a6 30. Qb3+ Ka5 31. Nd5 b5 32. Qa3#) 29... Ka5 30. Nxc7?! { (Mate in 3 → Mate in 4) Not the best checkmate sequence. Best move was Qc3+. } (30. Qc3+ Ka4 31. Qc4+ Ka5 32. Qb5#) 30... b5 31. Bxb5?! { (Mate in 2 → Mate in 3) Not the best checkmate sequence. Best move was Qa6+. } (31. Qa6+ Kb4 32. Nd5#) 31... Kb4 32. O-O c4 33. Rb1+ Kc5 34. Na6+?! { (Mate in 1 → Mate in 1) Not the best checkmate sequence. Best move was Qd4#. } (34. Qd4#) 34... Kd5 35. Rd1+?! { (Mate in 1 → Mate in 1) Not the best checkmate sequence. Best move was Bc6#. } (35. Bc6#) 35... Ke4 36. Qf4# { White wins by checkmate. } 1-0