lichess dev

[Event "Open Arena"] [Site "http://chess-academy.net/5IkANLFx"] [Date "2021.02.08"] [Round "-"] [White "David13"] [Black "Arenas"] [Result "0-1"] [UTCDate "2021.02.08"] [UTCTime "17:25:34"] [WhiteElo "1498"] [BlackElo "2217"] [WhiteRatingDiff "+0"] [BlackRatingDiff "+2"] [Variant "Standard"] [TimeControl "420+2"] [ECO "B00"] [Opening "Caro-Kann Defense: Hillbilly Attack"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e4 c6?! { (0.12 → 0.77) Inaccuracy. Best move was e6. } (1... e6 2. Nf3 d5 3. exd5 exd5 4. d4 Nf6 5. Bd3 Bd6 6. O-O) 2. Bc4? { (0.77 → -0.73) Mistake. Best move was d4. } { B00 Caro-Kann Defense: Hillbilly Attack } (2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bf5) 2... d5 3. exd5 cxd5 4. Bxd5?? { (-0.43 → -4.24) Blunder. Best move was Bb3. } (4. Bb3 Nc6 5. d4 Bf5 6. Nf3 e6 7. O-O Nf6 8. h3 Bd6 9. Be3 Rc8 10. Nbd2 O-O) 4... Qxd5 5. Nc3? { (-3.78 → -5.90) Mistake. Best move was Nf3. } (5. Nf3 Qe4+ 6. Qe2 Qxe2+ 7. Kxe2 Nc6 8. d4 Bf5 9. c3 e6 10. Be3 Nf6 11. Nbd2 Bg6) 5... Qxg2 6. Nb5?? { (-5.44 → -14.24) Blunder. Best move was Qf3. } (6. Qf3 Qxf3) 6... Qxh1 7. Nc7+ Kd8 8. Nxa8 Qxg1+ 9. Ke2 Bg4+ 10. f3 Bxf3+ 11. Kxf3 Qxd1+ 12. Ke3 e6 13. d4 Qxc2 14. Bd2 Nf6 15. Ba5+ b6 16. Be1?! { (-35.34 → Mate in 7) Checkmate is now unavoidable. Best move was h3. } (16. h3 bxa5 17. b4 Qe4+ 18. Kd2 Qxd4+ 19. Ke2 Qxa1 20. bxa5 Qxa2+ 21. Ke3 Bc5+ 22. Kd3 Qd5+) 16... Qe4+?! { (Mate in 7 → -31.12) Lost forced checkmate sequence. Best move was Ng4+. } (16... Ng4+ 17. Kf3 Qd3+ 18. Kg2 Qe2+ 19. Kg3 Bd6+ 20. Kh3 Qf3+ 21. Bg3 Nf2+ 22. Kh4 Be7#) 17. Kd2?! { (-31.12 → Mate in 7) Checkmate is now unavoidable. Best move was Kf2. } (17. Kf2 Ng4+) 17... Qxd4+?! { (Mate in 7 → -31.39) Lost forced checkmate sequence. Best move was Bb4+. } (17... Bb4+ 18. Kc1 Qxe1+ 19. Kc2 Qd2+ 20. Kb3 Qd3+ 21. Ka4 b5+ 22. Kxb4 Qc4+ 23. Ka5 Qa4#) 18. Kc2 Nbd7 19. Rd1 Qe4+ 20. Kc3?! { (-26.95 → Mate in 9) Checkmate is now unavoidable. Best move was Kc1. } (20. Kc1 Qxa8) 20... Bb4+ 21. Kb3 Kc8?! { (Mate in 9 → -23.82) Lost forced checkmate sequence. Best move was Bxe1. } (21... Bxe1 22. a3 Nd5 23. Rc1 Bd2 24. Rc6 Ne3 25. Ka2 Qxc6 26. Nc7 Qxc7 27. h4 Qc2 28. h5) 22. Rc1+?! { (-23.82 → Mate in 8) Checkmate is now unavoidable. Best move was Bxb4. } (22. Bxb4 Qf3+) 22... Nc5+ 23. Rxc5+ bxc5 24. Bg3 Qd3+ 25. Ka4 Nd5?! { (Mate in 4 → Mate in 4) Not the best checkmate sequence. Best move was Qd1+. } (25... Qd1+ 26. Kb5 a6+ 27. Kb6 Qd5 28. Kxa6 Qb7#) 26. Bd6 Qc4?! { (Mate in 3 → Mate in 3) Not the best checkmate sequence. Best move was Qd1+. } (26... Qd1+ 27. Kb5 a6+ 28. Kxa6 Qa4#) 27. b3 Nc3# { Black wins by checkmate. } 0-1