lichess dev

[Event "Open Arena"] [Site "http://chess-academy.net/59cFuezX"] [Date "2021.02.23"] [Round "-"] [White "badeaion"] [Black "Shon4321Official"] [Result "0-1"] [UTCDate "2021.02.23"] [UTCTime "17:59:36"] [WhiteElo "1578"] [BlackElo "2025"] [WhiteRatingDiff "-2"] [BlackRatingDiff "+7"] [Variant "Standard"] [TimeControl "420+2"] [ECO "A00"] [Opening "Van't Kruijs Opening"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e3 { A00 Van't Kruijs Opening } e6 2. Bc4?! { (0.34 → -0.41) Inaccuracy. Best move was d4. } (2. d4 d5 3. c4 Nf6 4. Nf3 c5 5. Nc3 Nc6 6. Be2 cxd4) 2... d5 3. Bb5+? { (0.13 → -1.20) Mistake. Best move was Be2. } (3. Be2 Bd6 4. d4 Nf6 5. Nf3 c5 6. O-O O-O 7. dxc5 Bxc5 8. c4 dxc4 9. Qc2 Qe7) 3... Nd7?! { (-1.20 → -0.27) Inaccuracy. Best move was c6. } (3... c6 4. Be2 e5 5. d3 Nf6 6. c4 Bd6 7. Nc3 dxc4 8. dxc4 e4 9. c5 Bxc5 10. Qxd8+) 4. Bxd7+?! { (-0.27 → -0.95) Inaccuracy. Best move was d4. } (4. d4 Nf6) 4... Bxd7 5. Nc3 Qg5 6. e4? { (-0.89 → -3.41) Mistake. Best move was g3. } (6. g3 Qf5 7. f4 Nf6 8. Nf3 Bd6 9. a4 e5 10. fxe5 Bxe5 11. O-O O-O-O 12. d4 Bd6) 6... Qxg2? { (-3.41 → -1.66) Mistake. Best move was dxe4. } (6... dxe4 7. g3) 7. exd5?? { (-1.66 → -8.56) Blunder. Best move was Qf3. } (7. Qf3 Qxf3 8. Nxf3 dxe4 9. Nxe4 f5 10. Nc3 Bd6 11. Rg1 Bc6 12. Ke2 Kf7 13. h4 Bxf3+) 7... Qxh1 8. Kf1 Nf6 9. dxe6? { (-7.96 → -9.55) Mistake. Best move was Qf3. } (9. Qf3) 9... Bxe6? { (-9.55 → -7.90) Mistake. Best move was Bc6. } (9... Bc6 10. d3 Bc5 11. Ke2 O-O-O 12. Be3 Bxe3 13. Kxe3 Rhe8 14. Kd2 Rxe6 15. Qf1 Bg2 16. Qd1) 10. Nb5? { (-7.90 → Mate in 11) Checkmate is now unavoidable. Best move was Qf3. } (10. Qf3 Qxf3 11. Nxf3 h6 12. d3 O-O-O 13. Bd2 g5 14. Ne2 Bg7 15. Bc3 Nh5 16. Bxg7 Nxg7) 10... Bh3+ 11. Ke1 Qxg1+ 12. Ke2 Bg4+ 13. Kd3?! { (-29.83 → Mate in 8) Checkmate is now unavoidable. Best move was f3. } (13. f3 Bxf3+) 13... Qxd1 14. Nxc7+ Kd7 15. Nxa8 Qe2+?! { (Mate in 3 → Mate in 5) Not the best checkmate sequence. Best move was Qf3+. } (15... Qf3+ 16. Kd4 Qd5+ 17. Ke3 Qe4#) 16. Kc3 Qf3+?! { (Mate in 5 → Mate in 5) Not the best checkmate sequence. Best move was Ne4+. } (16... Ne4+ 17. Kd4 Bc5+ 18. Kd5 Be6+ 19. Ke5 f6+ 20. Kf4 g5#) 17. Kc4 b5+?! { (Mate in 2 → Mate in 4) Not the best checkmate sequence. Best move was Qd5+. } (17... Qd5+ 18. Kc3 Ne4#) 18. Kxb5 Qe4?! { (Mate in 4 → Mate in 5) Not the best checkmate sequence. Best move was Qb7+. } (18... Qb7+ 19. Ka5 Kc6 20. c4 Qb4+ 21. Ka6 Qa4#) 19. a4 Qb4+?! { (Mate in 3 → Mate in 3) Not the best checkmate sequence. Best move was Qxa8. } (19... Qxa8 20. Ka6 Qc6+ 21. Kxa7 Bc5#) 20. Ka6 Be6?! { (Mate in 3 → Mate in 4) Not the best checkmate sequence. Best move was Kc6. } (20... Kc6 21. b3 Qb7+ 22. Ka5 Bb4#) 21. Kxa7 Bc5+ 22. Nb6+ Qxb6# { Black wins by checkmate. } 0-1