CohenChessClub.com

[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/bKoJounW"] [Date "2025.07.14"] [White "KiRiLL"] [Black "Pekka"] [Result "0-1"] [UTCDate "2025.07.14"] [UTCTime "15:26:53"] [WhiteElo "1438"] [BlackElo "1545"] [WhiteRatingDiff "-7"] [BlackRatingDiff "+20"] [WhiteTitle "GM"] [BlackTitle "GM"] [Variant "Standard"] [TimeControl "420+2"] [ECO "D00"] [Opening "Queen's Pawn Game: Mason Variation"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. d4 d5 2. Bf4 { D00 Queen's Pawn Game: Mason Variation } Nf6 3. e3 Nc6 4. Bd3 Bg4 5. Nf3 Bxf3 6. Qxf3 e6 7. O-O Bd6 8. Bxd6 Qxd6 9. Nc3 O-O 10. Qh3 Nb4 11. Be2?! { (-0.25 → -1.06) Inaccuracy. e4 was best. } (11. e4 Nxd3 12. Qxd3 dxe4 13. Nxe4 Nxe4 14. Qxe4 c6 15. c3 Rad8 16. Rad1 Qc7 17. Rd3 Rd5) 11... Nxc2 12. Rac1 Nb4 13. a3 Nc6 14. Bd3?! { (-0.89 → -1.42) Inaccuracy. g4 was best. } (14. g4) 14... Na5? { (-1.42 → -0.04) Mistake. g6 was best. } (14... g6 15. g4 h5 16. f3 Kg7 17. Nb5 Qd7 18. Qg3 a6 19. Nc3 Qd6 20. Qxd6 cxd6 21. g5) 15. b4?! { (-0.04 → -0.67) Inaccuracy. g4 was best. } (15. g4 Nb3 16. Rc2 g6 17. Nb5 Qd8 18. Nxc7 Rc8 19. Qg3 Na5 20. Rfc1 Nc4 21. Nb5 Qb6) 15... Nb3?! { (-0.67 → 0.00) Inaccuracy. Nc6 was best. } (15... Nc6 16. g4) 16. Rb1?? { (0.00 → -6.50) Blunder. Rc2 was best. } (16. Rc2 a5 17. Nb5 Qd8 18. Nxc7 Rc8 19. Qg3 axb4 20. axb4 Ne8 21. Qh3 Nf6) 16... Nd2 17. Rbd1 Nxf1 18. Rxf1 a5 19. bxa5 Rxa5 20. Nb1 e5 21. dxe5 Qxe5 22. Nd2 Qh5 23. Qf5 Qxf5 24. Bxf5 Rxa3 25. Nf3 Rfa8 26. h3 Ra1 27. Rxa1 Rxa1+ 28. Kh2 g6 29. Bd3 g5 30. Nxg5 Ra3 31. Bf5 b5 32. Bc2 c5 33. Kg3 b4 34. Bf5 b3 35. Nf3 c4 36. Nd2 c3 37. Nb1 c2 38. Nxa3 c1=Q 39. Nb5 b2 40. Nd4 b1=Q 41. Bxb1 Qxb1 42. Nf5 Ne4+ 43. Kf4 Qb8+ 44. Kg4?! { (-63.00 → Mate in 9) Checkmate is now unavoidable. Kf3 was best. } (44. Kf3 Qe5 45. g4 Kf8 46. Ng3 Qf6+ 47. Nf5 Qb2 48. Kf4 Qb8+ 49. Kf3 Qh2 50. g5 Qxf2+) 44... Qe5 45. Nh6+ Kg7 46. Nf5+ Kg6 47. Nh4+ Kf6 48. Nf3 Qf5+ 49. Kh4 Qg6 50. g3 Qh6+ 51. Kg4 Qg5+?? { (Mate in 1 → -4.92) Lost forced checkmate sequence. Nxf2# was best. } (51... Nxf2#) 52. Nxg5 Nxg5 53. h4 Ne4 54. f3 Nf2+ 55. Kf4 Nh3+ 56. Kg4 Nf2+ 57. Kf4 Nd3+ 58. Kg4 Ke5 59. f4+ Ke4 60. f5 Nf2+ 61. Kg5 Kxe3 62. f6 d4 63. Kf5 d3 64. Ke5 d2 65. Kd5 d1=Q+ 66. Ke5 Qd4+ 67. Kf5 Qe4+ 68. Kg5 Qg4+ 69. Kh6 Qg6# { Black wins by checkmate. } 0-1