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Puzzles (3 cohencoins award for each match):

Puzzle psqwH: 493

GM🧂 Maxim (1787) +7
FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/QfZRq5yj"] [Date "2025.09.24"] [White "Junhee"] [Black "Maxim"] [Result "0-1"] [UTCDate "2025.09.24"] [UTCTime "23:03:57"] [WhiteElo "1717"] [BlackElo "1787"] [WhiteRatingDiff "-9"] [BlackRatingDiff "+7"] [WhiteTitle "GM⏳"] [BlackTitle "GM🧂"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C46"] [Opening "Three Knights Opening"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. Nf3 Nc6 3. Nc3 { C46 Three Knights Opening } Be7?! { (0.18 → 0.90) Inaccuracy. Nf6 was best. } (3... Nf6 4. Bb5 Nd4 5. Nxd4 exd4 6. e5 dxc3 7. exf6 Qxf6 8. dxc3 Qe5+ 9. Qe2 Qxe2+ 10. Kxe2) 4. Bc4 d6 5. d4 exd4 6. Nxd4 Nxd4 7. Qxd4 Nf6 8. Bg5 O-O 9. O-O-O h6 10. Be3?! { (1.16 → 0.20) Inaccuracy. Bh4 was best. } (10. Bh4 Be6 11. f4 Bxc4 12. Qxc4 Ng4 13. Bxe7 Qxe7 14. Rd2 c6 15. Qb4 Rfd8 16. h3 Nf6) 10... a6 11. Nd5 Nxd5 12. Qxd5 Bf6 13. Bd4?? { (0.10 → -3.50) Blunder. Qd3 was best. } (13. Qd3 Re8 14. f3 Be6 15. Kb1 b5 16. Bxe6 Rxe6 17. g4 Qe7 18. Bf2 Be5 19. h4 Qf6) 13... b6?? { (-3.50 → 7.51) Blunder. Be6 was best. } (13... Be6 14. Bxf6 Qxf6 15. Qd4 Bxc4 16. Qxc4 Qxf2 17. Rd2 Qb6 18. Rd3 Rae8 19. Rb3 Qf2 20. Rxb7) 14. Bxf6 Qxf6 15. Qxa8 Qf4+ 16. Kb1 Bg4 17. Qd5 Bxd1 18. Qxd1 Qxe4 19. Qd5 Qf4 20. Bxa6 Qxf2 21. Rf1 Qe3 22. Bc4 Kh8 23. b3 f6 24. Qc6 Qe7 25. c3 Qe5 26. Kc2 Qxh2 27. Qxc7?! { (7.45 → 4.46) Inaccuracy. b4 was best. } (27. b4 Qe5) 27... Qxg2+ 28. Kb1 d5?! { (4.32 → 5.87) Inaccuracy. Qe4+ was best. } (28... Qe4+ 29. Ka1 d5 30. Qd6 Rc8 31. Qxd5 Qxd5 32. Bxd5 Rxc3 33. Be4 Re3 34. Bc2 h5 35. Rh1) 29. Qd6?? { (5.87 → 2.64) Blunder. Bd3 was best. } (29. Bd3 Qh3) 29... Re8?? { (2.64 → 6.22) Blunder. Ra8 was best. } (29... Ra8 30. Qxd5) 30. Qxd5 Qg6+?! { (5.38 → 7.60) Inaccuracy. Qxd5 was best. } (30... Qxd5 31. Bxd5 h5 32. a4 h4 33. Kc2 g5 34. Rxf6 Kg7 35. Re6 Rxe6 36. Bxe6 Kf6 37. Bc8) 31. Kb2 Qh7 32. Qd3?! { (8.29 → 5.73) Inaccuracy. Re1 was best. } (32. Re1 Qg8) 32... Qxd3 33. Bxd3 Re3 34. Kc2 Rh3 35. a4 Rh2+ 36. Kd1 Rb2 37. Bc4 Kh7 38. Re1 h5 39. Re2 Rb1+ 40. Kd2 Rh1 41. b4 h4 42. Bd5 Ra1 43. Bc6 h3 44. Rh2?? { (6.62 → -5.94) Blunder. Re3 was best. } (44. Re3 g5 45. Rxh3+ Kg6 46. Rh1 Ra2+ 47. Kd3 f5 48. Rb1 f4 49. a5 Rxa5 50. bxa5 bxa5) 44... Ra2+ 45. Kd3 Rxh2 46. a5 bxa5 47. bxa5 Ra2 48. c4 Rxa5 49. Be4+ Kh8 50. Kd4 g5 51. c5 Ra4+ 52. Kd5 Rxe4 53. Kxe4 h2 54. Kf5 h1=Q 55. Kxf6 Qc6+?! { (Mate in 8 → -37.14) Lost forced checkmate sequence. g4 was best. } (55... g4 56. Ke5 g3 57. Ke6 g2 58. c6 g1=Q 59. Kd6 Qg6+ 60. Kc5 Qhxc6+ 61. Kb4 Qb1+ 62. Ka3) 56. Kxg5?! { (-37.14 → Mate in 10) Checkmate is now unavoidable. Kxg5 was best. } (56. Kxg5 Qxc5+ 57. Kf4 Qf2+ 58. Ke4 Qd2 59. Kf3 Kh7 60. Ke4 Qc3 61. Kd5 Kg7 62. Ke4 Kg6) 56... Qxc5+?! { (Mate in 10 → -30.81) Lost forced checkmate sequence. Qxc5+ was best. } (56... Qxc5+ 57. Kf4 Qd4+ 58. Kf3 Kg7 59. Ke2 Kg6 60. Kf3 Qd3+ 61. Kf2 Kg5 62. Kg2 Qe2+ 63. Kg1) 57. Kf4?! { (-30.81 → Mate in 9) Checkmate is now unavoidable. Kf4 was best. } (57. Kf4 Kg7 58. Ke4 Qc3 59. Kd5 Kf6) 57... Qe7 58. Kf5 Kg7 59. Kf4 Kg6 60. Kf3 Kg5 61. Kg3 Qe3+ 62. Kg2 Qe2+ 63. Kg3 Qe3+ 64. Kg2 Kg4 65. Kf1 Qd2 66. Kg1 Kg3 67. Kf1 { White offers draw } 67... Qf2# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
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