lichess dev

[Event "sah mat Arena"] [Site "http://chess-academy.net/en0pA9Eh"] [Date "2020.05.27"] [Round "-"] [White "chitanumatei"] [Black "StinaConstantin"] [Result "0-1"] [UTCDate "2020.05.27"] [UTCTime "14:28:46"] [WhiteElo "1551"] [BlackElo "1779"] [WhiteRatingDiff "-7"] [BlackRatingDiff "+37"] [Variant "Standard"] [TimeControl "300+0"] [ECO "A20"] [Opening "English Opening: King's English Variation"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. c4 e5 { A20 English Opening: King's English Variation } 2. Qa4?! { (0.23 → -0.57) Inaccuracy. Best move was Nc3. } (2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. d4 d6 6. Be2 O-O) 2... Qf6? { (-0.57 → 0.84) Mistake. Best move was Nc6. } (2... Nc6 3. Nc3 Nf6 4. g3 Bc5 5. Nf3 d6 6. Bg2 O-O 7. d3) 3. g3? { (0.84 → -0.16) Mistake. Best move was Nc3. } (3. Nc3 Qg6) 3... Bc5?! { (-0.16 → 0.40) Inaccuracy. Best move was Qc6. } (3... Qc6) 4. f4? { (0.40 → -1.27) Mistake. Best move was Nf3. } (4. Nf3 Qe7 5. Nc3 Nf6 6. Bg2 O-O 7. O-O c6 8. d3 h6 9. Nd2 Bb6 10. b4 d6) 4... exf4 5. gxf4?! { (-0.94 → -1.80) Inaccuracy. Best move was Nf3. } (5. Nf3) 5... Qxf4 6. Kd1?? { (-1.74 → -12.63) Blunder. Best move was Nf3. } (6. Nf3 Nc6 7. Kd1 Qf5 8. Qc2 d6 9. Qxf5 Bxf5 10. Nc3 Nf6 11. d3 O-O 12. Bd2 Rfe8) 6... Qxf1+ 7. Kc2 Qg2 8. Qb5 Na6 9. Qb3 Qxh1 10. Qc3 Qxg1 11. Qe5+ Ne7 12. Qxg7?! { (-17.98 → Mate in 5) Checkmate is now unavoidable. Best move was Nc3. } (12. Nc3 Bd6) 12... Qxg7?! { (Mate in 5 → -35.34) Lost forced checkmate sequence. Best move was Nb4+. } (12... Nb4+ 13. Kc3 Qxc1+ 14. Kb3 Qc2+ 15. Ka3 Na6+ 16. b4 Bxb4#) 13. Nc3 Nb4+ 14. Kb3?! { (-41.08 → Mate in 12) Checkmate is now unavoidable. Best move was Kb1. } (14. Kb1 Qg6+) 14... Bd4?! { (Mate in 12 → -26.85) Lost forced checkmate sequence. Best move was Nec6. } (14... Nec6 15. Nb5 a6 16. Nxc7+ Kd8 17. d4 Nxd4+ 18. Kc3 Ndc2+ 19. Kb3 Nxa1+ 20. Ka4 Kxc7 21. a3) 15. Nb5 Nbc6 16. Nxc7+ Kd8 17. Nxa8 Na5+ 18. Kb4?! { (-30.04 → Mate in 8) Checkmate is now unavoidable. Best move was Kc2. } (18. Kc2 Nxc4) 18... Nac6+?! { (Mate in 8 → -28.52) Lost forced checkmate sequence. Best move was Nec6+. } (18... Nec6+ 19. Ka4 b5+ 20. cxb5 Bxb2 21. Bxb2 Qxb2 22. bxc6 Nxc6 23. Rb1 Qxb1 24. a3 a6 25. d3) 19. Kb5?! { (-28.52 → Mate in 8) Checkmate is now unavoidable. Best move was Kb3. } (19. Kb3 Na5+ 20. Kc2 Nxc4 21. a3 Bxb2 22. Ra2 Bxc1 23. Kxc1 Qg1+ 24. Kc2 Qxh2 25. Kc3 Qxe2) 19... a6+ 20. Ka4 b5+ 21. Kb3 bxc4+ 22. Kxc4 d5+?! { (Mate in 6 → -27.87) Lost forced checkmate sequence. Best move was Qe5. } (22... Qe5 23. Kd3 Nb4+ 24. Kc4 Qd5+ 25. Kxb4 Qb5+ 26. Ka3 a5 27. d3 Qb4#) 23. Kd3?! { (-27.87 → Mate in 1) Checkmate is now unavoidable. Best move was Kb3. } (23. Kb3 Bb7) 23... Bf5+?! { (Mate in 1 → Mate in 4) Not the best checkmate sequence. Best move was Nb4#. } (23... Nb4#) 24. e4 Bxe4+ 25. Ke2 Qg2+ 26. Kd1 Qf1# { Black wins by checkmate. } 0-1