lichess dev

[Event "46th Lichess Mega B Arena"] [Site "http://chess-academy.net/hG4Nvz03"] [Date "2023.03.18"] [Round "-"] [White "BIZOO"] [Black "ZhigaIko_Sergei"] [Result "0-1"] [UTCDate "2023.03.18"] [UTCTime "17:08:56"] [WhiteElo "1671"] [BlackElo "3223"] [WhiteRatingDiff "+0"] [BlackRatingDiff "+0"] [Variant "Standard"] [TimeControl "300+0"] [ECO "A00"] [Opening "Hungarian Opening: Reversed Alekhine"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. g3 e5 2. Nf3?! { (0.41 → -0.23) Inaccuracy. Best move was c4. } { A00 Hungarian Opening: Reversed Alekhine } (2. c4 d5) 2... d6?! { (-0.23 → 0.64) Inaccuracy. Best move was Nc6. } (2... Nc6 3. c4) 3. Bg2 c6?! { (0.16 → 0.76) Inaccuracy. Best move was e4. } (3... e4 4. Nd4) 4. O-O?! { (0.76 → 0.26) Inaccuracy. Best move was e4. } (4. e4 Nf6) 4... Nd7?! { (0.26 → 0.95) Inaccuracy. Best move was f5. } (4... f5 5. c4) 5. b3?! { (0.95 → -0.04) Inaccuracy. Best move was e4. } (5. e4) 5... d5?! { (-0.04 → 0.51) Inaccuracy. Best move was e4. } (5... e4) 6. Bb2?! { (0.51 → -0.15) Inaccuracy. Best move was d3. } (6. d3 Bd6) 6... c5? { (-0.15 → 2.52) Mistake. Best move was Bd6. } (6... Bd6 7. d3) 7. Nc3? { (2.52 → -0.05) Mistake. Best move was Nxe5. } (7. Nxe5 Nxe5) 7... f5? { (-0.05 → 2.74) Mistake. Best move was Ngf6. } (7... Ngf6) 8. d4? { (2.74 → 1.06) Mistake. Best move was Nxd5. } (8. Nxd5 e4 9. Ne1 Ndf6 10. Ne3 h5 11. d3 Qc7 12. dxe4 fxe4 13. h4 Be6 14. c4 Bd6) 8... cxd4?! { (1.06 → 1.91) Inaccuracy. Best move was e4. } (8... e4 9. Nh4 Ndf6 10. dxc5 Be6 11. Qd2 Bxc5 12. Rad1 Ne7 13. Na4 Bb6 14. Bxf6 gxf6 15. c3) 9. Nb1? { (1.91 → -0.75) Mistake. Best move was Nxd5. } (9. Nxd5) 9... e4? { (-0.75 → 1.16) Mistake. Best move was Bd6. } (9... Bd6 10. c3 Ngf6 11. cxd4 e4 12. Ne5 O-O 13. Na3 Re8 14. Nc2 Nxe5 15. dxe5 Bxe5 16. Bxe5) 10. Nfd2? { (1.16 → -1.30) Mistake. Best move was Nxd4. } (10. Nxd4 Ndf6 11. c4 dxc4 12. bxc4 h5 13. h4 Bd7 14. e3 Rc8 15. Qb3 Nh6 16. Nc3 Bc5) 10... e3?? { (-1.30 → 2.02) Blunder. Best move was Ne7. } (10... Ne7) 11. Nf3? { (2.02 → 0.51) Mistake. Best move was fxe3. } (11. fxe3) 11... exf2+ 12. Kh1? { (0.59 → -0.87) Mistake. Best move was Rxf2. } (12. Rxf2 Ngf6) 12... Qf6? { (-0.87 → 2.04) Mistake. Best move was Ngf6. } (12... Ngf6 13. Bxd4 Nc5 14. Nc3 Be7 15. Ne5 Nce4 16. Nxe4 dxe4 17. Bxf2 Qc7 18. Qd4 O-O 19. Qc4+) 13. Qe1?? { (2.04 → -13.58) Blunder. Best move was Bxd4. } (13. Bxd4) 13... fxe1=Q 14. h3 Qxf1+ 15. Kh2 Qxe2 16. a3?! { (-33.32 → Mate in 8) Checkmate is now unavoidable. Best move was Bxd4. } (16. Bxd4 Qd6) 16... Qxc2?! { (Mate in 8 → -36.28) Lost forced checkmate sequence. Best move was Qg6. } (16... Qg6 17. Bc1 Bd6 18. Bg5 Qxg5 19. Nxg5 Qe1 20. h4 Qxg3+ 21. Kg1 Qe3+ 22. Kf1 Bg3 23. Nf3) 17. a4 Qxb2 18. b4 Qxa1 19. b5?! { (-52.19 → Mate in 7) Checkmate is now unavoidable. Best move was Nbd2. } (19. Nbd2 Qxa4) 19... Qxb1 20. h4 Ne5 21. Kh3 Nxf3 22. g4 Qd3?! { (Mate in 1 → Mate in 3) Not the best checkmate sequence. Best move was Qxh4#. } (22... Qxh4#) 23. a5 Ne1+?! { (Mate in 1 → Mate in 3) Not the best checkmate sequence. Best move was Qxh4#. } (23... Qxh4#) 24. Kh2 Qe5+ 25. Kg1 Qde3+?! { (Mate in 2 → Mate in 2) Not the best checkmate sequence. Best move was Qeg3. } (25... Qeg3 26. Kh1 Qxg2#) 26. Kf1 Q5f4+ 27. Bf3 Qfxf3# { Black wins by checkmate. } 0-1