[Event "CCA MIXED MON 205TH CHALLENGE"] [Site "https://lichess.org/VAeKNId9"] [Date "2026.06.01"] [Round "-"] [White "ADRIJACHAKRABORTY"] [Black "DebabarnaaMukherjee5"] [Result "1-0"] [GameId "VAeKNId9"] [UTCDate "2026.06.01"] [UTCTime "12:30:00"] [WhiteElo "984"] [BlackElo "1319"] [WhiteRatingDiff "+32"] [BlackRatingDiff "-309"] [Variant "Standard"] [TimeControl "600+3"] [ECO "D01"] [Opening "Rapport-Jobava System"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 { [%eval 0.15] } 1... d5 { [%eval 0.27] } 2. Nc3 { [%eval -0.07] } 2... Nf6 { [%eval 0.0] } 3. Bf4 { [%eval -0.1] } { D01 Rapport-Jobava System } 3... Nc6?! { (-0.10 → 0.65) Inaccuracy. e6 was best. } { [%eval 0.65] } (3... e6 4. Nb5 Na6 5. e3 Be7 6. Nf3 O-O 7. Be2 c6 8. Nc3) 4. Nb5 { [%eval 0.64] } 4... e5 { [%eval 0.64] } 5. dxe5 { [%eval 0.25] } 5... Bb4+? { (0.25 → 1.48) Mistake. a6 was best. } { [%eval 1.48] } (5... a6 6. Nc3 Nh5 7. Nxd5 Be6 8. e4 Nxf4 9. Nxf4 Qe7 10. c3) 6. c3 { [%eval 1.53] } 6... O-O?? { (1.53 → 4.15) Blunder. Nh5 was best. } { [%eval 4.15] } (6... Nh5 7. Qxd5 Nxf4 8. Qxd8+ Kxd8 9. cxb4 Ne6 10. Nf3 Nxb4 11. Rd1+) 7. cxb4 { [%eval 3.95] } 7... Nxb4 { [%eval 4.73] } 8. exf6 { [%eval 4.24] } 8... Qxf6 { [%eval 5.18] } 9. Nxc7? { (5.18 → 3.02) Mistake. Qd2 was best. } { [%eval 3.02] } (9. Qd2 a5 10. a3 Bf5 11. axb4 axb4 12. Rc1 b3 13. Nd4 Bc2 14. Ngf3 Rfe8) 9... Bf5?! { (3.02 → 4.41) Inaccuracy. Qxf4 was best. } { [%eval 4.41] } (9... Qxf4 10. Qd2 Qxc7 11. Qxb4 d4 12. Nf3 Bg4 13. Nxd4 Rad8 14. Qc3 Qb6 15. e3) 10. Rc1?! { (4.41 → 3.34) Inaccuracy. Nxd5 was best. } { [%eval 3.34] } (10. Nxd5 Nxd5 11. Qxd5 Rfe8 12. Qb5 a6 13. Qb3 Rac8 14. Nf3 Bc2 15. Bg5 Qf5) 10... Nxa2 { [%eval 4.07] } 11. Nxd5 { [%eval 3.38] } 11... Qxb2 { [%eval 4.15] } 12. Ra1?? { (4.15 → -0.06) Blunder. Ne7+ was best. } { [%eval -0.06] } (12. Ne7+ Kh8 13. Nxf5 Rfd8 14. Qc2 Qa3 15. f3 Qa5+ 16. Kf2 Nxc1 17. g4 Na2) 12... Nc3?? { (-0.06 → 4.49) Blunder. Rfd8 was best. } { [%eval 4.49] } (12... Rfd8 13. f3 Bc2 14. Qd2 Qxa1+ 15. Kf2 Rac8 16. Bc7 Re8 17. e4 Nc3 18. Qxc3) 13. Nxc3 { [%eval 4.56] } 13... Qxc3+ { [%eval 4.35] } 14. Bd2 { [%eval 4.04] } 14... Qb2 { [%eval 4.24] } 15. Nf3 { [%eval 4.61] } 15... Rad8 { [%eval 4.68] } 16. g3 { [%eval 4.39] } 16... Rc8 { [%eval 5.19] } 17. Bg2 { [%eval 5.05] } 17... Bc2 { [%eval 5.53] } 18. Qc1 { [%eval 5.4] } 18... Qb3 { [%eval 6.43] } 19. Ra3 { [%eval 5.62] } 19... Qb5 { [%eval 6.1] } 20. O-O { [%eval 5.83] } 20... Qh5 { [%eval 6.02] } 21. Ne1 { [%eval 5.54] } 21... Qxe2 { [%eval 7.19] } 22. Nxc2 { [%eval 7.25] } 22... b5 { [%eval 7.33] } 23. Re1 { [%eval 7.11] } 23... Qc4 { [%eval 7.49] } 24. Ne3 { [%eval 7.23] } 24... Qe6 { [%eval 7.63] } 25. Rc3 { [%eval 7.58] } 25... b4 { [%eval 7.34] } 26. Rxc8 { [%eval 7.56] } 26... Rxc8 { [%eval 7.44] } 27. Nc2 { [%eval 7.2] } 27... a5 { [%eval 7.53] } 28. Rxe6 { [%eval 7.55] } 28... Rxc2? { (7.55 → Mate in 1) Checkmate is now unavoidable. fxe6 was best. } { [%eval #1] } (28... fxe6 29. Be4 b3 30. Na3 Rxc1+ 31. Bxc1 h5 32. h4 g5 33. hxg5 h4 34. gxh4) 29. Qxc2 { [%eval #5] } 29... fxe6 { [%eval #7] } 30. Qc8+ { [%eval #5] } 30... Kf7 { [%eval #6] } 31. Qa6? { (Mate in 6 → 9.66) Lost forced checkmate sequence. Qd7+ was best. } { [%eval 9.66] } (31. Qd7+ Kf6 32. Bg5+ Kxg5 33. Qxg7+ Kf5 34. h4 e5 35. Qf7+ Kg4 36. Qf3#) 31... b3? { (9.66 → Mate in 7) Checkmate is now unavoidable. h6 was best. } { Black offers draw } { [%eval #7] } (31... h6 32. Bc6 Kf6 33. Kg2 Ke5 34. Bc1 Kf6 35. Bb2+ Ke7 36. Qb7+ Kd6) 32. Bc1 { [%eval #6] } 32... a4 { [%eval #6] } 33. Qxa4 { [%eval #6] } 33... e5 { [%eval #3] } 34. Qxb3+ { [%eval #5] } 34... Kf6 { [%eval #5] } 35. Bh3 { [%eval #5] } 35... Kg6 { [%eval #2] } 36. Qe6+ { [%eval #1] } 36... Kh5 { [%eval #1] } 37. Qg4# { White wins by checkmate. } 1-0