[Event "Masthanaiah chess world JUNE 1"] [Site "https://lichess.org/xfrpsN0c"] [Date "2021.06.01"] [White "sky58"] [Black "thomstone"] [Result "0-1"] [UTCDate "2021.06.01"] [UTCTime "12:39:27"] [WhiteElo "2163"] [BlackElo "2146"] [WhiteRatingDiff "-6"] [BlackRatingDiff "+6"] [Variant "Standard"] [TimeControl "300+0"] [ECO "B50"] [Opening "Sicilian Defense: Delayed Alapin Variation, with d6"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 c5 2. Nf3 d6 3. c3 { B50 Sicilian Defense: Delayed Alapin Variation, with d6 } Nf6 4. Bc4 e6 5. d3 Nc6 6. O-O Be7 7. h3 a6 8. a4 O-O 9. Re1 d5 10. exd5?! { (0.26 → -0.44) Inaccuracy. Bb3 was best. } (10. Bb3 dxe4 11. dxe4 Qxd1 12. Bxd1 Bd7 13. Bf4 b5 14. Nbd2 c4 15. Ra2 Rfd8 16. Be2 Be8) 10... exd5 11. Ba2 h6 12. Bf4 Bd6 13. Bxd6 Qxd6 14. Nbd2 Bf5 15. Nf1 Rfe8 16. Qd2 Rad8 17. Ng3 Bh7 18. Rxe8+ Rxe8 19. Re1 Ne5 20. Nxe5 Rxe5 21. Re3?! { (0.17 → -0.40) Inaccuracy. Rxe5 was best. } (21. Rxe5 Qxe5 22. d4 cxd4 23. cxd4 Qd6 24. Bb3 b6 25. Ne2 Bf5 26. g4 Bd7 27. f3 Ne8) 21... Qe7?! { (-0.40 → 0.19) Inaccuracy. Rxe3 was best. } (21... Rxe3 22. Qxe3) 22. Rxe5 Qxe5 23. d4 cxd4 24. cxd4 Qe6 25. Qa5 Bg6 26. Kh2?! { (0.06 → -0.56) Inaccuracy. Qc3 was best. } (26. Qc3 b6) 26... Qd6?! { (-0.56 → 0.00) Inaccuracy. h5 was best. } (26... h5 27. Qd2 Qc6 28. Bb3 b5 29. axb5 Qxb5 30. Bd1 h4 31. Ne2 Ne4 32. Qf4 Qxb2 33. Qxh4) 27. Qc3 Qc6 { Black offers draw } 28. Qb4?! { (0.00 → -0.82) Inaccuracy. Qxc6 was best. } (28. Qxc6 bxc6 29. a5 Kf8 30. Kg1 Bd3 31. f3 Ne8 32. Kf2 Nd6 33. Ke3 Bb5 34. b3 Nb7) 28... Ne4?! { (-0.82 → 0.00) Inaccuracy. h5 was best. } (28... h5 29. Bb3) 29. Qe7 Nxg3 30. Kxg3 Qxa4 31. Bxd5 Qxd4 32. Qxb7 Qe5+ 33. Kf3 Qf6+ 34. Kg3 Qe5+ 35. f4 Qe3+ 36. Bf3 Qd3 37. Kh2 Kh7 38. b4 Qd2 39. Qb8 a5?! { (-0.08 → 0.65) Inaccuracy. f6 was best. } (39... f6 40. Kg3 h5 41. Kh2 h4 42. Kh1 Qe1+ 43. Kh2 Be4 44. Bxe4+ Qxe4 45. Qd6 Qe3 46. Kh1) 40. bxa5?! { (0.65 → 0.00) Inaccuracy. b5 was best. } (40. b5 a4 41. f5 Bxf5 42. Qe5 Bc8 43. Qe4+ f5 44. Qxa4 Qb2 45. Qc4 Qe5+ 46. Kg1 Bd7) 40... Qxa5 41. Qd6 Qf5 42. Bg4 Qd3 43. Qe5 f6 44. Qc7 Qc2 45. Be6?? { (0.00 → -63.01) Blunder. Qxc2 was best. } (45. Qxc2 Bxc2 46. f5 h5 47. Bxh5 Bxf5 48. Be2 g6 49. g3 Be6 50. h4 Bb3 51. Kg1 g5) 45... Qxc7 46. Kg3 Bf7 47. Bf5+ g6 48. Bg4 g5 49. Bf3?! { (-65.96 → Mate in 9) Checkmate is now unavoidable. Kf2 was best. } (49. Kf2 Qxf4+) 49... Qxf4+ 50. Kf2 f5?! { (Mate in 19 → -74.84) Lost forced checkmate sequence. Bd5 was best. } (50... Bd5 51. Ke2 Bxf3+ 52. gxf3 Qg3 53. Ke3 Qxh3 54. Kf2 f5 55. f4 gxf4 56. Ke2 Qg2+ 57. Kd3) 51. g3 Qd2+ 52. Kf1 Bc4+ 53. Kg1 Qe1+ 54. Kh2 Qf2+ 55. Bg2 Bf1 56. h4 Qxg2# { Black wins by checkmate. } 0-1