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Puzzles (3 cohencoins award for each match):

Puzzle reu9F: 1325

Puzzle kyOJv: 807

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/7qbiuxem"] [Date "2025.10.10"] [White "Jackson4"] [Black "Abigail1"] [Result "1-0"] [UTCDate "2025.10.10"] [UTCTime "23:08:03"] [WhiteElo "942"] [BlackElo "992"] [WhiteRatingDiff "+18"] [BlackRatingDiff "-18"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C23"] [Opening "Bishop's Opening: Boi Variation"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. Bc4?! { (0.60 → -0.05) Inaccuracy. Nf3 was best. } (2. Nf3 Nc6 3. Bb5 Nge7 4. O-O Ng6 5. d4 exd4 6. Nxd4 Bc5 7. Nf5 O-O 8. Nc3 a6) 2... Bc5 { C23 Bishop's Opening: Boi Variation } 3. Nf3 Nf6? { (0.34 → 1.72) Mistake. Nc6 was best. } (3... Nc6 4. O-O Nf6 5. d3 h6 6. c3 d6 7. Re1 a6 8. d4 Ba7 9. h3 O-O 10. Bb3) 4. Nxe5 Nxe4?? { (2.05 → 4.54) Blunder. O-O was best. } (4... O-O) 5. d3?? { (4.54 → 0.86) Blunder. Bxf7+ was best. } (5. Bxf7+ Kf8 6. d4 Nc6 7. dxc5 Nxe5 8. Bd5 Nxc5 9. b4 Na6 10. O-O Nxb4 11. Ba3 c5) 5... Nxf2 6. O-O?? { (0.80 → -13.37) Blunder. Qh5 was best. } (6. Qh5 Qf6 7. Bxf7+ Kf8 8. Ng6+ hxg6 9. Qxc5+ d6 10. Qxf2 Qxf2+ 11. Kxf2 Kxf7 12. Nc3 Nc6) 6... O-O?? { (-13.37 → -0.79) Blunder. Nxd1+ was best. } (6... Nxd1+ 7. Kh1) 7. Rxf2 Qh4?? { (-0.75 → 3.08) Blunder. Bxf2+ was best. } (7... Bxf2+ 8. Kxf2) 8. d4?? { (3.08 → -1.68) Blunder. Qe1 was best. } (8. Qe1 d6 9. Nf3 Qxf2+ 10. Qxf2 Bxf2+ 11. Kxf2 Be6 12. Bb3 a5 13. Nc3 Bxb3 14. axb3 Nc6) 8... Bxd4 9. g3?? { (-1.70 → -8.45) Blunder. Qe2 was best. } (9. Qe2 Bxe5) 9... Qh3?? { (-8.45 → 11.28) Blunder. Bxf2+ was best. } (9... Bxf2+) 10. Qxd4 c6 11. Rg2 Na6 12. Qg4 Qh6? { (7.68 → Mate in 4) Checkmate is now unavoidable. Qxg4 was best. } (12... Qxg4 13. Nxg4) 13. Bxh6 d6 14. Qf4 dxe5 15. Qxe5?! { (Mate in 3 → 13.20) Lost forced checkmate sequence. Qg5 was best. } (15. Qg5 g6 16. Qxe5 Nc5 17. Qg7#) 15... Bh3?! { (13.20 → Mate in 1) Checkmate is now unavoidable. gxh6 was best. } (15... gxh6 16. Nc3) 16. Rf2?! { (Mate in 1 → 14.92) Lost forced checkmate sequence. Qxg7# was best. } (16. Qxg7#) 16... Nb4?! { (14.92 → Mate in 1) Checkmate is now unavoidable. gxh6 was best. } (16... gxh6 17. Rf6 b5 18. Rxh6 bxc4 19. Qg5+ Kh8 20. Qf6+ Kg8 21. Rxh3 Rfe8 22. Qg5+ Kh8 23. Qf5) 17. c3?! { (Mate in 1 → 14.38) Lost forced checkmate sequence. Qxg7# was best. } (17. Qxg7#) 17... Na6?! { (14.38 → Mate in 1) Checkmate is now unavoidable. gxh6 was best. } (17... gxh6) 18. Bg5?! { (Mate in 1 → 15.25) Lost forced checkmate sequence. Qxg7# was best. } (18. Qxg7#) 18... Nb8?! { (15.25 → Mate in 2) Checkmate is now unavoidable. Be6 was best. } (18... Be6) 19. Qe7?! { (Mate in 2 → 17.15) Lost forced checkmate sequence. Rxf7 was best. } (19. Rxf7 Rxf7 20. Qe8#) 19... Rc8?! { (17.15 → Mate in 3) Checkmate is now unavoidable. Nd7 was best. } (19... Nd7 20. Bxf7+) 20. Bxf7+ Kh8 21. Bh6 gxh6 22. Qe6? { (Mate in 1 → 7.46) Lost forced checkmate sequence. Qe5# was best. } (22. Qe5#) 22... Kg7? { (7.46 → Mate in 3) Checkmate is now unavoidable. Bxe6 was best. } (22... Bxe6 23. Bxe6 Re8 24. Bh3 Re1+ 25. Rf1 Rxf1+ 26. Bxf1 Nd7 27. Nd2 Rf8 28. Rd1 Nb6 29. Nb1) 23. Qxc8?! { (Mate in 3 → 10.59) Lost forced checkmate sequence. Qe5+ was best. } (23. Qe5+ Kf8 24. Bb3+ Bf5 25. Rxf5#) 23... Na6?! { (10.59 → Mate in 5) Checkmate is now unavoidable. Bxc8 was best. } (23... Bxc8) 24. g4?! { (Mate in 5 → 10.37) Lost forced checkmate sequence. Qxa8 was best. } (24. Qxa8 Bf5 25. Rxf5 Nb8 26. Qxb8 h5 27. Qg8+ Kh6 28. Rxh5#) 24... Bxg4?! { (10.37 → Mate in 4) Checkmate is now unavoidable. Rxc8 was best. } (24... Rxc8 25. Bh5 Rd8 26. Na3 Nc5 27. Rf3 Rd3 28. Rf7+ Kg8 29. Re1 Rd8 30. Rf3 Na4 31. Rxh3) 25. Qxa8 Nc7 26. Qxa7 Nb5 27. a4?! { (Mate in 4 → 15.56) Lost forced checkmate sequence. Qb8 was best. } (27. Qb8 Bf3 28. Rxf3 h5 29. Qg8+ Kh6 30. Rf6#) 27... Nxa7 28. a5 Nc8 29. b4 b5 30. a6 Nb6 31. a7 Bh3?! { (19.50 → Mate in 6) Checkmate is now unavoidable. Kf8 was best. } (31... Kf8 32. Be6+) 32. Ra6?! { (Mate in 6 → 20.44) Lost forced checkmate sequence. a8=Q was best. } (32. a8=Q Bc8 33. Qxc6 Nd7 34. Ba2 h5 35. Rf7+ Kg8 36. Qxc8+ Nf8 37. Qxf8#) 32... Nd5?! { (20.44 → Mate in 7) Checkmate is now unavoidable. Na8 was best. } (32... Na8 33. Be8) 33. a8=Q Nxb4 34. cxb4 h5 35. Qxc6 h4 36. Qxb5 Bd7 37. Qxd7 h3 38. b5 h5 39. b6 h4 40. b7 Kh7 41. b8=Q Kg7 42. Qd4+ Kh7 43. Be6 Kg6 44. Bc8+ Kg5 45. Qbe5# { White wins by checkmate. } 1-0
Computer analysisMove timesCrosstableFEN & PGN
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