lichess dev

[Event "Open Arena"] [Site "http://chess-academy.net/4Ys2Bv8G"] [Date "2021.02.23"] [Round "-"] [White "Ionut2012"] [Black "Shon4321Official"] [Result "0-1"] [UTCDate "2021.02.23"] [UTCTime "17:26:07"] [WhiteElo "1195"] [BlackElo "1717"] [WhiteRatingDiff "-2"] [BlackRatingDiff "+13"] [Variant "Standard"] [TimeControl "420+2"] [ECO "D00"] [Opening "Queen's Pawn Game #2"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. d4 d5 2. e3?! { (0.53 → 0.02) Inaccuracy. Best move was c4. } { D00 Queen's Pawn Game #2 } (2. c4 e6 3. Nf3 Nf6 4. Nc3 Bb4 5. e3 O-O 6. Be2 Nbd7) 2... e6 3. Bb5+?! { (0.24 → -0.56) Inaccuracy. Best move was Nf3. } (3. Nf3 Nf6 4. c4 Bd6 5. Nc3 O-O 6. Bd3 dxc4 7. Bxc4 c5) 3... Bd7?! { (-0.56 → 0.41) Inaccuracy. Best move was Nd7. } (3... Nd7 4. Nf3 Bd6 5. O-O Nf6 6. Be2 O-O 7. Nbd2 e5 8. dxe5 Nxe5 9. Nxe5 Bxe5 10. c4) 4. Bd3 c5?! { (0.00 → 0.52) Inaccuracy. Best move was Be7. } (4... Be7 5. Nf3 Nf6 6. b3 a5 7. O-O O-O 8. Bb2 c5 9. Nbd2 cxd4 10. exd4 a4 11. c4) 5. b4? { (0.52 → -2.10) Mistake. Best move was b3. } (5. b3 Nf6 6. Nf3 b5 7. dxc5 Bxc5 8. O-O O-O 9. Bb2 a6 10. Ne5 Nc6 11. Nd2 Nxe5) 5... c4 6. Be2 Bxb4+ 7. Bd2?! { (-1.57 → -2.15) Inaccuracy. Best move was c3. } (7. c3 Be7 8. a4 Nc6 9. Nd2 f5 10. Nh3 Nf6 11. O-O O-O 12. Ba3 Bxa3 13. Rxa3 Qe7) 7... Bd6 8. a4 Nf6?! { (-2.28 → -1.78) Inaccuracy. Best move was Nc6. } (8... Nc6) 9. a5? { (-1.78 → -3.20) Mistake. Best move was Nc3. } (9. Nc3 O-O 10. Bf3 a6 11. Nge2 Nc6 12. O-O Rb8 13. e4 dxe4 14. Nxe4 Nxe4 15. Bxe4 Bxh2+) 9... Nc6 10. a6? { (-2.28 → -4.05) Mistake. Best move was Bf3. } (10. Bf3 O-O 11. Nc3 e5 12. dxe5 Nxe5 13. Be2 Qe7 14. Nf3 Nxf3+ 15. Bxf3 d4 16. Ne2 dxe3) 10... b5 11. Bf3? { (-3.43 → -5.15) Mistake. Best move was c3. } (11. c3 Ne4 12. Nf3 Rb8 13. O-O Qc7 14. Be1 O-O 15. g3 f5 16. Nfd2 Nf6 17. f4 Na5) 11... b4 12. Bxd5?? { (-4.61 → -8.75) Blunder. Best move was Ne2. } (12. Ne2) 12... exd5 13. f4? { (-8.37 → -9.39) Mistake. Best move was Ne2. } (13. Ne2 c3) 13... c3 14. Nxc3?! { (-9.39 → -10.96) Inaccuracy. Best move was Bc1. } (14. Bc1 Ne4) 14... bxc3 15. Bxc3 Qe7 16. Qb1 Qxe3+ 17. Ne2 Ne4 18. Bd2 Qxd2+ 19. Kf1 Qe3 20. f5?! { (-31.89 → Mate in 1) Checkmate is now unavoidable. Best move was Qe1. } (20. Qe1 Nd2+) 20... Qf3+?! { (Mate in 1 → -10.57) Lost forced checkmate sequence. Best move was Qf2#. } (20... Qf2#) 21. Ke1?! { (-10.57 → Mate in 9) Checkmate is now unavoidable. Best move was gxf3. } (21. gxf3 Nd2+ 22. Kg2 Nxb1 23. Raxb1 Bxf5 24. Rb2 O-O 25. Ng3 Be6 26. Ne2 Ne7 27. Nc3 Nf5) 21... Qf2+ 22. Kd1 Qe3?! { (Mate in 8 → -19.96) Lost forced checkmate sequence. Best move was Nxd4. } (22... Nxd4 23. Qb2 Qxe2+ 24. Kc1 Bf4+ 25. Kb1 Qxc2+ 26. Qxc2 Rb8+ 27. Ka2 Nxc2 28. Rhe1 Be5 29. Rxe4) 23. Ra2?! { (-19.96 → Mate in 1) Checkmate is now unavoidable. Best move was Qc1. } (23. Qc1 Nf2+) 23... Qd2# { Black wins by checkmate. } 0-1