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Puzzles (3 cohencoins award for each match):

Puzzle F05Ck: 938

GM Josiah1 (1483?) +33
FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/j8smEwwB"] [Date "2025.08.02"] [White "Neil1"] [Black "Josiah1"] [Result "0-1"] [UTCDate "2025.08.02"] [UTCTime "17:13:33"] [WhiteElo "1446"] [BlackElo "1483"] [WhiteRatingDiff "-9"] [BlackRatingDiff "+33"] [WhiteTitle "IM💩"] [BlackTitle "GM"] [Variant "Standard"] [TimeControl "420+2"] [ECO "B50"] [Opening "Sicilian Defense: Modern Variations"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 c5 2. Nf3 d6 { B50 Sicilian Defense: Modern Variations } 3. Bc4?! { (0.45 → -0.08) Inaccuracy. d4 was best. } (3. d4 cxd4) 3... Nf6 4. Ng5?! { (0.06 → -0.72) Inaccuracy. d3 was best. } (4. d3 Nc6) 4... e6 5. Nf3?? { (-0.64 → -2.59) Blunder. d3 was best. } (5. d3 d5 6. Bb5+ Bd7 7. Bxd7+ Qxd7 8. e5 Ng8 9. c3 Nc6 10. d4 Nge7 11. Nf3 Nf5) 5... d5?? { (-2.59 → -0.35) Blunder. Nxe4 was best. } (5... Nxe4) 6. exd5 exd5 7. Qe2+?! { (-0.73 → -1.26) Inaccuracy. Bb5+ was best. } (7. Bb5+ Nc6) 7... Be7 8. Bd3?? { (-1.37 → -7.59) Blunder. Bb5+ was best. } (8. Bb5+) 8... c4 9. O-O cxd3 10. Qxd3 Nc6 11. Re1 Be6 12. Ng5 O-O 13. Nc3 g6 14. Nxe6 fxe6 15. Rxe6 Nh5 16. Nxd5 Bc5 17. Qc4 Bxf2+ 18. Kh1 b5 19. Qxc6 Ng3+?? { (-7.45 → 0.40) Blunder. Qh4 was best. } (19... Qh4 20. g3) 20. hxg3 Qg5?? { (0.43 → 4.31) Blunder. Rc8 was best. } (20... Rc8) 21. Nf6+?? { (4.31 → -12.24) Blunder. Ne7+ was best. } (21. Ne7+) 21... Rxf6 22. Qxa8+ Rf8 23. Qe4?! { (-12.00 → Mate in 4) Checkmate is now unavoidable. Re4 was best. } (23. Re4 Qh5+) 23... Bc5?? { (Mate in 4 → 7.54) Lost forced checkmate sequence. Qh5+ was best. } (23... Qh5+ 24. Qh4 Bxg3 25. Rxg6+ hxg6 26. Qxh5 Rf1#) 24. d4 Rf1+ 25. Kh2 Qh5+ 26. Qh4 Qxh4+ 27. gxh4 Bxd4 28. Bh6?? { (8.73 → 0.24) Blunder. Re8+ was best. } (28. Re8+) 28... Rxa1 29. Re8+?! { (0.42 → -0.35) Inaccuracy. Ra6 was best. } (29. Ra6 Bxb2 30. Rxa7 Bd4 31. Ra5 Kf7 32. Kg3 Bf6 33. Kg4 Rh1 34. g3 Rh2 35. c3 Bxc3) 29... Kf7 30. Re4 Bxb2 31. Rf4+?? { (-0.61 → -4.27) Blunder. Rb4 was best. } (31. Rb4 Rxa2) 31... Ke6 32. g4? { (-4.39 → -8.23) Mistake. Rb4 was best. } (32. Rb4 Be5+ 33. Kh3 a6 34. Re4 Rxa2 35. Bf4 Kf5 36. Rxe5+ Kxf4 37. Re7 Ra3+ 38. Kh2 Rc3) 32... Be5 33. Kg3 Bxf4+ 34. Kxf4 Rxa2 35. h5 gxh5 36. gxh5 Rxc2 37. Kg5 Rc5+ 38. Kh4 Rc4+ 39. Kg5 Rc5+ 40. Kg4 Kf6 41. Be3 Rc4+ 42. Kh3 { White offers draw } 42... Rc3 43. Kg4 Rxe3 44. Kf4 Rb3 45. Kg4 a5 46. h6 a4 47. Kh5 Kf5 48. Kh4 Rb4+ 49. Kh5 Rb3 50. Kh4 a3 51. Kh5 Rh3# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
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