lichess dev

[Event "Open Arena"] [Site "http://chess-academy.net/sC0BmKHS"] [Date "2021.03.12"] [Round "-"] [White "rdruta"] [Black "Marius"] [Result "0-1"] [UTCDate "2021.03.12"] [UTCTime "18:06:34"] [WhiteElo "1369"] [BlackElo "1605"] [WhiteRatingDiff "-4"] [BlackRatingDiff "+5"] [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. Qf3? { (0.34 → -0.82) Mistake. Best move was d4. } (2. d4 d5 3. c4 Nf6 4. Nf3 c5 5. Nc3 Nc6 6. Be2 cxd4) 2... Nc6?! { (-0.82 → -0.09) Inaccuracy. Best move was Nf6. } (2... Nf6 3. d4 c5 4. Qd1 d5 5. Nf3 Be7 6. Be2 O-O 7. O-O) 3. d4?! { (-0.09 → -0.64) Inaccuracy. Best move was Qd1. } (3. Qd1 Nf6 4. Nf3 d5 5. d4 Bd6 6. c4 O-O 7. Nc3 dxc4 8. Bxc4 e5 9. Be2 exd4) 3... Nb4? { (-0.64 → 0.48) Mistake. Best move was d5. } (3... d5 4. Qd1 Nf6 5. Nf3 Bd6 6. c4 O-O 7. Nc3 dxc4 8. Bxc4 e5 9. Be2 exd4 10. exd4) 4. Na3? { (0.48 → -0.64) Mistake. Best move was Qd1. } (4. Qd1 c5 5. a3 Nc6 6. c4 d5 7. dxc5 Bxc5 8. b4 Be7 9. Nf3 Bf6 10. Ra2 Nh6) 4... Nc6?! { (-0.64 → 0.33) Inaccuracy. Best move was c5. } (4... c5 5. Bd2) 5. b4?? { (0.33 → -4.21) Blunder. Best move was Qd1. } (5. Qd1) 5... Bxb4+ 6. Bd2? { (-3.56 → -6.08) Mistake. Best move was Kd1. } (6. Kd1) 6... Bxa3 7. Qg3 Qf6?! { (-5.95 → -5.40) Inaccuracy. Best move was g6. } (7... g6) 8. f4?! { (-5.40 → -6.32) Inaccuracy. Best move was Qxc7. } (8. Qxc7 e5) 8... Bb2? { (-6.32 → -4.75) Mistake. Best move was Qg6. } (8... Qg6) 9. Rb1 Ba3 10. e4? { (-4.66 → -6.67) Mistake. Best move was Bd3. } (10. Bd3 d5 11. Nf3 Qh6 12. e4 dxe4 13. Bxe4 Bd6 14. O-O Nge7 15. c4 f5 16. Bc2 b6) 10... Nxd4 11. e5? { (-6.17 → -7.67) Mistake. Best move was Ne2. } (11. Ne2 Bc5) 11... Qg6 12. Qxa3? { (-7.39 → -17.14) Mistake. Best move was Bd3. } (12. Bd3 Nxc2+ 13. Kd1 Qxg3 14. hxg3 Nd4 15. Rxh7 Rxh7 16. Bxh7 Ne7 17. Be4 Ndc6 18. Ne2 b6) 12... Nxc2+ 13. Kf2 Nxa3 14. Rb3 Nb1 15. Rxb1 Qxb1 16. f5 Qxf5+ 17. Nf3 Qc2 18. Nd4 Qxd2+ 19. Be2 Qxd4+ 20. Kg3?! { (-31.74 → Mate in 7) Checkmate is now unavoidable. Best move was Ke1. } (20. Ke1 Qxe5) 20... Qxe5+?! { (Mate in 7 → -32.04) Lost forced checkmate sequence. Best move was g5. } (20... g5 21. Bg4 Qf4+ 22. Kh3 Nh6 23. g3 Qxg4+ 24. Kg2 Qe2+ 25. Kh3 Nf5 26. Re1 g4#) 21. Kh4?! { (-32.04 → Mate in 6) Checkmate is now unavoidable. Best move was Kf2. } (21. Kf2 Qc5+) 21... Qxe2 22. Kg3 Nh6?! { (Mate in 3 → Mate in 6) Not the best checkmate sequence. Best move was Qe3+. } (22... Qe3+ 23. Kh4 Nf6 24. g4 g5#) 23. Kh3 Qg4# { Black wins by checkmate. } 0-1