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Puzzles (3 cohencoins award for each match):

Puzzle BOGQx: 1069

Jackson4 (972) −3
FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/H8ybKS4p"] [Date "2025.10.17"] [White "Jackson4"] [Black "Islomjon"] [Result "0-1"] [UTCDate "2025.10.17"] [UTCTime "23:07:39"] [WhiteElo "972"] [BlackElo "1369"] [WhiteRatingDiff "-3"] [BlackRatingDiff "+2"] [BlackTitle "GM"] [Variant "Standard"] [TimeControl "420+2"] [ECO "A07"] [Opening "King's Indian Attack"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. Nf3 d5 2. g3 { A07 King's Indian Attack } Nc6 3. Ng5?? { (0.44 → -1.37) Blunder. d4 was best. } (3. d4 Nf6) 3... Nf6 4. Nc3 d4 5. Nb5? { (-1.45 → -2.76) Mistake. Nb1 was best. } (5. Nb1 h6 6. Nf3 e5 7. d3 Be6 8. a3 Qd7 9. Bg2 a6 10. c4 Bh3 11. O-O g5) 5... Qd5?? { (-2.76 → 10.65) Blunder. h6 was best. } (5... h6 6. Nf3 e5 7. d3 a6 8. Na3 Bb4+ 9. Bd2 Bxa3 10. bxa3 e4 11. dxe4 Nxe4 12. Bg2) 6. Nxc7+ Kd7 7. Nxd5 Nxd5 8. Nxf7 Rg8 9. Bh3+ Kc7 10. Bg2 Be6 11. Ng5 Bg4 12. O-O h6 13. c4 hxg5 14. cxd5 Nb4 15. Qa4 Na6 16. Qxd4 Bf5 17. Qc4+ Kd6 18. b4 Rc8 19. Qf4+?? { (13.33 → 0.99) Blunder. Qb5 was best. } (19. Qb5) 19... e5?? { (0.99 → 20.84) Blunder. gxf4 was best. } (19... gxf4 20. b5 Nc7 21. e4 fxe3 22. fxe3 Bd3 23. Ba3+ Kd7 24. Bh3+ Kd8 25. Rf7 Nxd5 26. Bxc8) 20. Qxf5 Nxb4 21. Qxc8 Ke7 22. Qxb7+ Ke8 23. Qxb4 Bxb4 24. Rb1 Bc5 25. Rb8+ Kf7 26. a4 Rxb8 27. a5 a6 28. Bb2?! { (9.59 → 5.28) Inaccuracy. d3 was best. } (28. d3 g4 29. Be3 Rb5 30. Rc1 Bxe3 31. fxe3 Ke8 32. Kf2 Rxa5 33. Rc7 Kd8 34. Rxg7 Ra1) 28... Rxb2 29. Rc1 Bb4 30. Rc8?! { (5.62 → 3.87) Inaccuracy. Bf3 was best. } (30. Bf3 Rxd2) 30... Ke7?! { (3.87 → 5.47) Inaccuracy. Rxd2 was best. } (30... Rxd2 31. Bf3) 31. Rc7+ Kd8 32. Rxg7 Bxa5 33. Rg8+ Kd7 34. Rxg5 Rb1+ 35. Bf1 Bxd2 36. Kg2?? { (6.11 → -6.49) Blunder. Rg7+ was best. } (36. Rg7+) 36... Bxg5 37. g4 { White offers draw } 37... Kd6 38. h4 Bxh4 39. Kh3 Bxf2 40. g5 Rxf1 41. g6 Rg1 42. g7 Rxg7 43. e4 Rg3+ 44. Kh4 Re3+ 45. Kh5 Rxe4 46. Kh6 Kxd5 47. Kh7 Rg4 48. Kh8 Ke6 49. Kh7 Be3 50. Kh8 Kf6 51. Kh7 Kf7 52. Kh8 Rh4# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting