[Event "Chess Battle 21"] [Site "https://lichess.org/fCOSQIV6"] [Date "2021.08.12"] [White "biren865"] [Black "Deepak2712"] [Result "0-1"] [GameId "fCOSQIV6"] [UTCDate "2021.08.12"] [UTCTime "13:08:56"] [WhiteElo "1868"] [BlackElo "1713"] [WhiteRatingDiff "-151"] [BlackRatingDiff "+122"] [Variant "Standard"] [TimeControl "420+7"] [ECO "A04"] [Opening "Zukertort Opening: Arctic Defense"] [Termination "Normal"] [Annotator "lichess.org"] 1. Nf3 f6?! { (0.13 → 0.97) Inaccuracy. d5 was best. } { A04 Zukertort Opening: Arctic Defense } (1... d5 2. d4 e6 3. c4 dxc4 4. e3 Nf6 5. Bxc4 c5 6. O-O) 2. c4 e5 3. Qa4 Nc6 4. Nc3 Nge7 5. d4?! { (0.42 → -0.24) Inaccuracy. e3 was best. } (5. e3 d5) 5... Nf5?? { (-0.24 → 2.06) Blunder. exd4 was best. } (5... exd4 6. Nb5 Nf5 7. a3 a6 8. g4 Nd6 9. Nbxd4 Nxd4 10. Nxd4 b5 11. cxb5 Bb7 12. Rg1) 6. g4?? { (2.06 → -1.12) Blunder. d5 was best. } (6. d5) 6... Nd6?? { (-1.12 → 1.69) Blunder. Nfxd4 was best. } (6... Nfxd4 7. Bg2) 7. e3 g5?? { (1.70 → 3.84) Blunder. b6 was best. } (7... b6) 8. Bh3?? { (3.84 → 1.37) Blunder. h4 was best. } (8. h4) 8... a6?! { (1.37 → 2.01) Inaccuracy. b6 was best. } (8... b6 9. Bg2) 9. c5 b5 10. Qb3?! { (1.92 → 1.28) Inaccuracy. Qd1 was best. } (10. Qd1 Nf7 11. Bg2 d5 12. cxd6 Bb7 13. dxc7 Qxc7 14. Nd5 Qd6 15. e4 exd4 16. Nxd4 Nxd4) 10... Na5 11. Qa3?? { (1.82 → -2.23) Blunder. Qd1 was best. } (11. Qd1 Nf7) 11... Nac4?? { (-2.23 → 0.63) Blunder. Ndc4 was best. } (11... Ndc4 12. Qb4) 12. Qb4 a5? { (0.56 → 2.10) Mistake. exd4 was best. } (12... exd4 13. exd4 Bb7 14. d5 Qe7+ 15. Kd1 Nf7 16. Re1 Nce5 17. Qb3 Kd8 18. Nxe5 Nxe5 19. Ne4) 13. Qb3 a4 14. Nxa4?? { (2.04 → -2.05) Blunder. Qc2 was best. } (14. Qc2) 14... Na5?? { (-2.05 → 0.42) Blunder. Bb7 was best. } (14... Bb7) 15. Bd2?? { (0.42 → -9.99) Blunder. Qc2 was best. } (15. Qc2 bxa4) 15... Nxb3 16. axb3 Ne4 17. Bc3 bxa4 18. bxa4 Bb7 19. Bb4 d6 20. Kd1 dxc5 21. Be1 Nd6 22. Rc1 Rxa4 23. Rxc5 Nc4 24. b3 Ra1+ 25. Ke2 Bxc5 26. bxc4 Ba3 27. c5?! { (-15.90 → Mate in 4) Checkmate is now unavoidable. Rf1 was best. } (27. Rf1 Ra2+) 27... Ra2+?! { (Mate in 4 → -20.67) Lost forced checkmate sequence. Ba6+ was best. } (27... Ba6+ 28. Kd2 Qd5 29. Kc3 Rc1+ 30. Kd2 Qa2#) 28. Nd2 Bxh1 29. c6?! { (-22.00 → Mate in 10) Checkmate is now unavoidable. Kf1 was best. } (29. Kf1 exd4) 29... e4?! { (Mate in 10 → -22.46) Lost forced checkmate sequence. exd4 was best. } (29... exd4 30. e4 Bxe4 31. f3 Bxc6 32. Kf1 Qe7 33. Ne4 Bxe4 34. Kg1 Bxf3 35. Bf2 Rxf2 36. Kxf2) 30. f4 Bf3+ 31. Kf2 Bc1 32. Kf1?! { (-21.00 → Mate in 6) Checkmate is now unavoidable. Bg2 was best. } (32. Bg2 Bxg4) 32... Qa8 33. Nc4 Qa6 34. f5 Qxc4+ 35. Kg1 Bxe3+ 36. Bf2 Bxf2# { Black wins by checkmate. } 0-1