lichess dev

[Event "Open Arena"] [Site "http://chess-academy.net/T0NkgfYq"] [Date "2021.03.18"] [Round "-"] [White "rdruta"] [Black "stefanos12"] [Result "0-1"] [UTCDate "2021.03.18"] [UTCTime "18:18:38"] [WhiteElo "1379"] [BlackElo "1522"] [WhiteRatingDiff "-7"] [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 } c6?! { (-0.02 → 0.74) Inaccuracy. Best move was d5. } (1... d5 2. d4 Nf6 3. c4 e6 4. Nf3 Be7 5. cxd5 exd5 6. Bd3) 2. Qf3? { (0.74 → -0.81) Mistake. Best move was Nf3. } (2. Nf3) 2... d5?! { (-0.81 → -0.27) Inaccuracy. Best move was Nf6. } (2... Nf6 3. d4) 3. c4?! { (-0.27 → -1.01) Inaccuracy. Best move was d4. } (3. d4 Nf6) 3... Nf6 4. cxd5?! { (-0.52 → -1.36) Inaccuracy. Best move was Nc3. } (4. Nc3) 4... Nxd5? { (-1.36 → 0.16) Mistake. Best move was cxd5. } (4... cxd5 5. Qd1) 5. Bc4 Be6? { (-0.83 → 0.56) Mistake. Best move was e5. } (5... e5) 6. e4? { (0.56 → -0.83) Mistake. Best move was d4. } (6. d4 g6 7. Bb3 Nc7 8. Qd1 Nd7 9. Nf3 Bg7 10. O-O O-O 11. Nc3 Bg4 12. h3 Bxf3) 6... Nb4 7. Na3?? { (-0.86 → -5.18) Blunder. Best move was Bxe6. } (7. Bxe6 fxe6 8. Na3 N8a6 9. d4 Qxd4 10. Ne2 Nd3+ 11. Kf1 Qd7 12. Be3 O-O-O 13. Bxa7 Nxb2) 7... Bxc4 8. Nxc4 Nc2+ 9. Ke2?? { (-4.09 → -9.63) Blunder. Best move was Kf1. } (9. Kf1 Nxa1 10. Qc3 Na6 11. b3 Nxb3 12. axb3 Nc5 13. Ba3 Qd3+ 14. Qxd3 Nxd3 15. Nh3 e6) 9... Nxa1?? { (-9.63 → -3.59) Blunder. Best move was Nd4+. } (9... Nd4+ 10. Ke3 Nxf3 11. Nxf3 b5 12. Na3 Qd6 13. Ne1 Nd7 14. f3 O-O-O 15. Nac2 c5 16. Kf2) 10. e5?? { (-3.59 → -7.95) Blunder. Best move was Qc3. } (10. Qc3) 10... Nc2 11. Na5? { (-7.62 → -20.43) Mistake. Best move was Qc3. } (11. Qc3 Nd4+ 12. Kf1 c5 13. a4 Qd5 14. d3 Nbc6 15. Be3 O-O-O 16. Bxd4 Qxd4 17. Qxd4 Nxd4) 11... Nd4+ 12. Ke3 Nxf3 13. gxf3 Qxa5 14. d3 Qxe5+ 15. Kd2 Na6 16. b3 O-O-O 17. Kc2?! { (-28.97 → Mate in 5) Checkmate is now unavoidable. Best move was Ne2. } (17. Ne2 Qa5+) 17... Nb4+ 18. Kb1 Rxd3?! { (Mate in 4 → Mate in 5) Not the best checkmate sequence. Best move was Qc3. } (18... Qc3 19. Bb2 Qc2+ 20. Ka1 Qd1+ 21. Bc1 Qxc1#) 19. Bb2 Rd1+ 20. Bc1 Nd3?! { (Mate in 3 → Mate in 3) Not the best checkmate sequence. Best move was Qc3. } (20... Qc3 21. Ne2 Qc2+ 22. Ka1 Qxa2#) 21. Kc2 Rxc1+?! { (Mate in 3 → Mate in 4) Not the best checkmate sequence. Best move was Qc5+. } (21... Qc5+ 22. Kxd1 Qxc1+ 23. Ke2 Nf4#) 22. Kxd3 Qc3+?! { (Mate in 4 → Mate in 5) Not the best checkmate sequence. Best move was Rd1+. } (22... Rd1+ 23. Kc2 Qd4 24. b4 Qd3+ 25. Kb2 Rb1#) 23. Ke2 Re1# { Black wins by checkmate. } 0-1