lichess dev

[Event "Open Arena"] [Site "http://chess-academy.net/4LFdXhIK"] [Date "2021.01.09"] [Round "-"] [White "dragos-ieremie_8"] [Black "Anonim1"] [Result "0-1"] [UTCDate "2021.01.09"] [UTCTime "17:12:21"] [WhiteElo "1099"] [BlackElo "1500"] [WhiteRatingDiff "-4"] [BlackRatingDiff "+49"] [Variant "Standard"] [TimeControl "420+2"] [ECO "A40"] [Opening "Horwitz Defense"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. d4 e6 { A40 Horwitz Defense } 2. e3 c5 3. dxc5?! { (0.40 → -0.40) Inaccuracy. Best move was Nf3. } (3. Nf3 Nf6 4. c4 d5 5. Nc3 Nc6 6. cxd5 exd5 7. Bd3 cxd4 8. exd4 Bd6 9. Be3 O-O) 3... Bxc5 4. e4? { (0.10 → -0.94) Mistake. Best move was c4. } (4. c4 Nf6 5. Nf3 O-O 6. a3 d5 7. b4 Be7 8. Nbd2 a5 9. b5 b6 10. Bb2 Bb7) 4... Qh4? { (-0.94 → 0.26) Mistake. Best move was Nf6. } (4... Nf6) 5. g3?? { (0.26 → -6.82) Blunder. Best move was Qe2. } (5. Qe2) 5... Qxe4+ 6. Kd2? { (-6.24 → -8.91) Mistake. Best move was Be3. } (6. Be3) 6... Qxh1 7. Ne2? { (-8.46 → -13.97) Mistake. Best move was Nf3. } (7. Nf3 Nf6 8. Nc3 Ng4 9. Ne4 Bb6 10. Nd6+ Ke7 11. Ke2 Nxh2 12. Nxh2 Qxh2 13. Be3 Qh5+) 7... Qd5+ 8. Kc3 Qxd1 9. Kb3 Qxf1 10. Ka4?! { (-28.06 → Mate in 6) Checkmate is now unavoidable. Best move was Nbc3. } (10. Nbc3 Qxf2 11. a3 Qxh2 12. Ka2 Nc6 13. Bf4 d5 14. Nb5 Kf8 15. Nc7 Rb8 16. Nc3 Qxc2) 10... Qxe2 11. Kb3 Qb5+?! { (Mate in 5 → Mate in 5) Not the best checkmate sequence. Best move was Nc6. } (11... Nc6 12. Na3 a5 13. Ka4 b5+ 14. Kb3 a4+ 15. Kc3 b4#) 12. Kc3 Qb4+?! { (Mate in 5 → Mate in 9) Not the best checkmate sequence. Best move was Bb4+. } (12... Bb4+ 13. Kd4 Qe2 14. Be3 Nc6+ 15. Ke4 f5+ 16. Kf4 Qg4#) 13. Kd3 Qd4+ 14. Ke2 b6 15. Kf3 Bb7+?! { (Mate in 4 → Mate in 4) Not the best checkmate sequence. Best move was Qxf2+. } (15... Qxf2+ 16. Kg4 Nf6+ 17. Kh3 Qf5+ 18. Kg2 Bb7#) 16. Ke2 Qe4+?! { (Mate in 4 → -43.15) Lost forced checkmate sequence. Best move was Qxf2+. } (16... Qxf2+ 17. Kd3 Be4+ 18. Kc4 Qxc2+ 19. Nc3 Bd3#) 17. Kd2?! { (-43.15 → Mate in 4) Checkmate is now unavoidable. Best move was Be3. } (17. Be3 Qxc2+) 17... Bxf2?! { (Mate in 4 → Mate in 4) Not the best checkmate sequence. Best move was Bb4+. } (17... Bb4+ 18. Nc3 Ba6 19. Kd1 Qf3+ 20. Ke1 Qe2#) 18. Kc3 Qd4+?! { (Mate in 3 → Mate in 5) Not the best checkmate sequence. Best move was Bd5. } (18... Bd5 19. Kd2 Qe3+ 20. Kd1 Bf3#) 19. Kb3 Bd5+?! { (Mate in 5 → Mate in 5) Not the best checkmate sequence. Best move was b5. } (19... b5 20. Nd2 Bd5+ 21. c4 Qd3+ 22. Kb4 a5+ 23. Kxb5 Bc6#) 20. Ka3 Qc5+?! { (Mate in 5 → Mate in 5) Not the best checkmate sequence. Best move was b5. } (20... b5 21. c4 Qxc4 22. b3 Qxc1+ 23. Kb4 a5+ 24. Kxb5 Bc6#) 21. Ka4 Bc6+?! { (Mate in 1 → Mate in 4) Not the best checkmate sequence. Best move was Qa5#. } (21... Qa5#) 22. Kb3 a5?! { (Mate in 4 → Mate in 4) Not the best checkmate sequence. Best move was Bd5+. } (22... Bd5+ 23. c4 Qxc4+ 24. Ka3 Bc5+ 25. b4 Qxb4#) 23. Bg5 a4# { Black wins by checkmate. } 0-1