[Event "ED'22 Checkmate Arena"] [Site "https://lichess.org/wNh1hTom"] [Date "2022.03.14"] [White "sapta_ross"] [Black "PratikChatterjee_BNC"] [Result "0-1"] [UTCDate "2022.03.14"] [UTCTime "09:58:15"] [WhiteElo "1324"] [BlackElo "1824"] [WhiteRatingDiff "-1"] [BlackRatingDiff "+2"] [Variant "Standard"] [TimeControl "180+0"] [ECO "B06"] [Opening "Modern Defense"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 g6 { B06 Modern Defense } 2. Nc3 Bg7 3. d3?! { (0.54 → -0.11) Inaccuracy. d4 was best. } (3. d4 d6 4. Nf3 Nf6 5. Be2 O-O 6. O-O c5 7. d5 e6) 3... e6?! { (-0.11 → 0.44) Inaccuracy. c5 was best. } (3... c5 4. g3 Nc6 5. Bg2 d6 6. Nge2 Rb8 7. a4 a6 8. Nd5) 4. Bd2?! { (0.44 → -0.25) Inaccuracy. d4 was best. } (4. d4 d5 5. Nf3 dxe4 6. Nxe4 Nd7 7. Bf4 Ngf6 8. Nxf6+ Nxf6) 4... Ne7 5. b3?! { (0.25 → -0.75) Inaccuracy. h4 was best. } (5. h4 h5 6. g4 d5 7. gxh5 Rxh5 8. Be2 Rh8 9. h5 d4) 5... b6 6. f3?! { (-0.70 → -1.40) Inaccuracy. h4 was best. } (6. h4 h5 7. g3 d5 8. Nf3 c5 9. Bg2 O-O 10. O-O Nbc6 11. Re1 d4 12. Na4 e5) 6... Bb7 7. Be2 Nbc6 8. Be3?? { (-1.88 → -8.71) Blunder. f4 was best. } (8. f4 d5) 8... Nd4?? { (-8.71 → -2.61) Blunder. Bxc3+ was best. } (8... Bxc3+ 9. Bd2) 9. Bxd4 Bxd4 10. Qd2 Nc6 11. f4?? { (-2.69 → -7.19) Blunder. O-O-O was best. } (11. O-O-O Qe7) 11... f5?? { (-7.19 → -1.12) Blunder. Qh4+ was best. } (11... Qh4+) 12. e5?? { (-1.12 → -7.06) Blunder. O-O-O was best. } (12. O-O-O) 12... Qh4+?? { (-7.06 → -1.62) Blunder. Nxe5 was best. } (12... Nxe5) 13. g3 Qh6?? { (-2.17 → -0.39) Blunder. Qe7 was best. } (13... Qe7 14. Nf3) 14. Rb1?? { (-0.39 → -7.74) Blunder. Bf3 was best. } (14. Bf3 g5 15. Nge2 O-O-O 16. O-O-O gxf4 17. gxf4 Kb8 18. Nxd4 Nxd4 19. Bxb7 Kxb7 20. Qf2 c5) 14... Nb4?? { (-7.74 → 0.83) Blunder. Nxe5 was best. } (14... Nxe5 15. Nb5 Bxh1 16. Nxd4 Qxh2 17. Qe3 Ng4 18. Bxg4 fxg4 19. Nge2 O-O 20. Kd2 Rae8 21. Qe5) 15. a3?? { (0.83 → -8.46) Blunder. Bf3 was best. } (15. Bf3 O-O-O) 15... Bxh1 16. Nf3 Bxf3 17. Bxf3 Qxh2?? { (-7.61 → 4.37) Blunder. Bxc3 was best. } (17... Bxc3 18. Qxc3 Qxh2 19. axb4 Rd8 20. Qd4 Qxg3+ 21. Ke2 Qh2+ 22. Ke3 O-O 23. Qc4 Qg3 24. Rh1) 18. Be2?? { (4.37 → Mate in 4) Checkmate is now unavoidable. Qxh2 was best. } (18. Qxh2) 18... Qg1+?! { (Mate in 4 → -10.84) Lost forced checkmate sequence. Bf2+ was best. } (18... Bf2+ 19. Kd1 Qg1+ 20. Bf1 Qxf1+ 21. Qe1 Qxe1#) 19. Bf1 h5 20. Ne2? { (-9.78 → Mate in 3) Checkmate is now unavoidable. axb4 was best. } (20. axb4 Qxg3+) 20... Qf2+?! { (Mate in 3 → -14.76) Lost forced checkmate sequence. Bf2+ was best. } (20... Bf2+ 21. Kd1 Qxf1+ 22. Qe1 Qxe1#) 21. Kd1 Qxf1+ 22. Qe1 Qf3 23. Qxb4 h4 24. Kc1 Be3+ 25. Kb2 Qxe2 26. Qc3 c5 27. Qe1 Bd4+ 28. Ka2?! { (-41.48 → Mate in 2) Checkmate is now unavoidable. Qc3 was best. } (28. Qc3 Bxc3+) 28... Qxc2+ 29. Rb2 Qxb2# { Black wins by checkmate. } 0-1