lichess dev

[Event "Open Arena"] [Site "http://chess-academy.net/LMgAwOZK"] [Date "2021.03.31"] [Round "-"] [White "Mateiciobanu"] [Black "BatushkaFeofan"] [Result "0-1"] [UTCDate "2021.03.31"] [UTCTime "17:19:22"] [WhiteElo "1071"] [BlackElo "2123"] [WhiteRatingDiff "+0"] [BlackRatingDiff "+0"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C00"] [Opening "French Defense #2"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e4 e6 { C00 French Defense #2 } 2. Na3?! { (0.30 → -0.50) Inaccuracy. Best move was d4. } (2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7) 2... d5 3. exd5?! { (-0.01 → -0.55) Inaccuracy. Best move was e5. } (3. e5 Bxa3) 3... exd5 4. f4? { (0.05 → -1.36) Mistake. Best move was Be2. } (4. Be2 Nf6 5. Nf3 Bxa3 6. bxa3 O-O 7. d4 Nc6 8. O-O Re8 9. Be3 Bf5 10. Bd3 Bxd3) 4... c6?! { (-1.36 → -0.57) Inaccuracy. Best move was Nf6. } (4... Nf6 5. Be2) 5. g3? { (-0.57 → -1.89) Mistake. Best move was Nf3. } (5. Nf3 Nf6) 5... Bf5? { (-1.89 → -0.87) Mistake. Best move was Nf6. } (5... Nf6 6. Nf3 Bxa3 7. bxa3 O-O 8. Ne5 Nbd7 9. d4 Ne4 10. Bg2 Nb6 11. O-O f6 12. Nd3) 6. g4?? { (-0.87 → -16.77) Blunder. Best move was Qe2+. } (6. Qe2+ Be7) 6... Qh4+ 7. Ke2 Bxg4+ 8. Nf3 Bxf3+ 9. Kxf3 Qh5+ 10. Ke3 Qxd1 11. Be2 Qxh1 12. Bf3 Qe1+ 13. Kd3 Qf1+ 14. Ke3 Bc5+ 15. d4 Qg1+ 16. Kd3?! { (-29.08 → Mate in 8) Checkmate is now unavoidable. Best move was Ke2. } (16. Ke2 Qxd4) 16... Qxd4+ 17. Ke2 Qf2+ 18. Kd1 Qxf3+ 19. Kd2 Be3+ 20. Kc3 Bxf4+?! { (Mate in 4 → Mate in 4) Not the best checkmate sequence. Best move was Bxc1+. } (20... Bxc1+ 21. Kb4 a5+ 22. Ka4 Nd7 23. Rxc1 Nc5#) 21. Kb4 a5+ 22. Kc5 Bd6+?! { (Mate in 2 → Mate in 3) Not the best checkmate sequence. Best move was Nd7+. } (22... Nd7+ 23. Kd4 c5#) 23. Kxd6 Qf6+ 24. Kc5 Na6+?! { (Mate in 1 → Mate in 3) Not the best checkmate sequence. Best move was Nd7#. } (24... Nd7#) 25. Kb6 c5+ 26. Kxb7 Rb8+ 27. Ka7 Qb6# { Black wins by checkmate. } 0-1