[Event "June Schol. Competition: K-12"] [Site "https://lichess.org/XZ4eUMSJ"] [Date "2021.06.09"] [White "Bershak"] [Black "DCVidena"] [Result "0-1"] [UTCDate "2021.06.09"] [UTCTime "22:00:00"] [WhiteElo "1551"] [BlackElo "1858"] [WhiteRatingDiff "-8"] [BlackRatingDiff "+4"] [Variant "Standard"] [TimeControl "1500+5"] [ECO "A46"] [Opening "Indian Defense: London System"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 Nf6 2. Nf3 e6 3. Bf4 { A46 Indian Defense: London System } c5 4. dxc5 Bxc5 5. e3 d5 6. h3 h6 7. Be2 Nc6 8. O-O O-O 9. c3 b6 10. Nbd2 Bb7 11. Bb5 Qe7 12. b4 Bd6 13. Bxd6 Qxd6 14. Qa4 Rac8 15. Rad1 Qe7?! { (-1.26 → -0.41) Inaccuracy. Rc7 was best. } (15... Rc7) 16. Rfe1 Rfd8 17. Nb3 Ne4 18. Nbd4?? { (-1.30 → -5.79) Blunder. Rc1 was best. } (18. Rc1 Nd6 19. Bf1 a6 20. Red1 Nb8 21. b5 axb5 22. Bxb5 Nc6 23. Nbd4 Ra8 24. Qc2 Na5) 18... Nxc3 19. Qb3 Nxd1 20. Rxd1 Nxb4 21. Qb1 Nc6 22. Ne2 Qc7 23. Rc1 Qd6 24. Rd1 Ne5 25. Nfd4 Rc7 26. Ba4 a6 27. f4 Nc4 28. Rf1 Nd2 29. Qa1 Nxf1 30. Kxf1 Qa3 31. Bb3 Rdc8 32. Bc2 Rxc2 33. Nxc2 Rxc2 34. Qe5?! { (-12.29 → Mate in 13) Checkmate is now unavoidable. Qb1 was best. } (34. Qb1 Qd3) 34... Qd3 35. Qh5 Qxe2+? { (Mate in 7 → -8.05) Lost forced checkmate sequence. d4 was best. } (35... d4 36. exd4 Qe3 37. d5 Rb2 38. g3 Rb1+ 39. Nc1 Rxc1+ 40. Kg2 Rg1+ 41. Kh2 Qxg3#) 36. Qxe2 Rxe2 37. Kxe2 Kf8 38. g3 Ke7 39. Kf3 Kd6 40. Kg4 Kc5 41. f5 Bc8 42. f6 e5+ 43. Kh5 gxf6 44. h4 d4 45. exd4+ exd4 46. Kxh6 d3 47. Kg7 d2 48. h5 d1=Q 49. h6 Bf5 50. Kxf7 Qh5+ 51. Kxf6 Qg6+ 52. Ke5 Qxh6 53. Kxf5 Kb4 54. g4 Ka3 55. g5 Qxg5+ 56. Kxg5 Kxa2 57. Kf4 b5 58. Ke3 b4 59. Kd2 b3 60. Kc3 b2 61. Kb4 b1=Q+ 62. Ka5 Ka3 63. Kxa6 Ka4 64. Ka7 Ka5 65. Ka8 Qh7 66. Kb8 Kb6 67. Kc8 Qc7# { Black wins by checkmate. } 0-1