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Puzzles (3 cohencoins award for each match):

Puzzle PaoBU: 830

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/KTL8S9SX"] [Date "2025.11.18"] [White "Christian1"] [Black "ay136416"] [Result "1-0"] [UTCDate "2025.11.18"] [UTCTime "00:15:58"] [WhiteElo "1674"] [BlackElo "1420"] [WhiteRatingDiff "+2"] [BlackRatingDiff "-8"] [WhiteTitle "NM🐍"] [BlackTitle "NM🙂"] [Variant "Standard"] [TimeControl "420+2"] [ECO "D30"] [Opening "Queen's Gambit Declined"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. d4 d5 2. c4 e6 { D30 Queen's Gambit Declined } 3. Nf3 Bd6 4. Nc3 Nf6 5. Bg5 Be7 6. e3 O-O 7. Qc2 dxc4?! { (0.62 → 1.22) Inaccuracy. Nbd7 was best. } (7... Nbd7) 8. Bxc4 Nc6 9. Bd3?? { (1.22 → -0.47) Blunder. a3 was best. } (9. a3 Nd5) 9... Nb4 10. Qd2 a5?! { (-0.49 → 0.14) Inaccuracy. Nxd3+ was best. } (10... Nxd3+ 11. Qxd3 c5 12. O-O cxd4 13. Qxd4 h6 14. Bh4 Qxd4 15. Nxd4 Rd8 16. Rfd1 Bd7 17. f3) 11. a3? { (0.14 → -1.09) Mistake. Bb1 was best. } (11. Bb1 c5) 11... Nc6?? { (-1.09 → 1.80) Blunder. Nxd3+ was best. } (11... Nxd3+) 12. Qc2 Bd7? { (1.62 → 3.37) Mistake. h6 was best. } (12... h6) 13. Bxf6 Bxf6 14. Bxh7+ Kh8 15. O-O-O?? { (3.43 → 0.43) Blunder. Be4 was best. } (15. Be4) 15... g6 16. h4 Kxh7 17. Ng5+? { (0.03 → -1.31) Mistake. h5 was best. } (17. h5 Kg7) 17... Bxg5?? { (-1.31 → 2.15) Blunder. Kg7 was best. } (17... Kg7) 18. hxg5+ Kg7 19. f4?? { (2.08 → -0.59) Blunder. Ne4 was best. } (19. Ne4 Qe7 20. d5 e5 21. Nf6 Rh8 22. Qc3 Rad8 23. dxc6 Bxc6 24. Rxh8 Rxh8 25. e4 Qe6) 19... Qb8?? { (-0.59 → 6.31) Blunder. Ne7 was best. } (19... Ne7 20. Qd2) 20. Rh2?? { (6.31 → 0.00) Blunder. Ne4 was best. } (20. Ne4) 20... b5?? { (0.00 → 6.07) Blunder. Rh8 was best. } (20... Rh8 21. Rdh1 Rxh2 22. Rxh2 Ne7 23. Ne4 Nd5 24. Qf2 Bc6 25. Nf6 Nxf6 26. gxf6+ Kxf6 27. Qh4+) 21. Rdh1 Rg8 22. Qf2?? { (8.07 → -2.46) Blunder. Ne4 was best. } (22. Ne4 Rh8 23. Nf6 Rxh2 24. Rxh2 Qh8 25. Rxh8 Rxh8 26. Qc5 e5 27. Nxd7 exf4 28. Qxc6 f3) 22... b4 23. Qh4?! { (-2.77 → -4.32) Inaccuracy. Ne4 was best. } (23. Ne4 bxa3) 23... Kf8 24. Qh6+ Ke7 25. Ne4 bxa3 26. bxa3 Ra6 27. Nf6 Rd8 28. Qg7 Qb3 29. Rh7 Qxe3+ 30. Kd1 Qxd4+ 31. Ke2 Qb2+ 32. Kf1 Be8?? { (-8.30 → 8.66) Blunder. Qc1+ was best. } (32... Qc1+ 33. Kf2 Qxf4+ 34. Kg1 Be8 35. Ng8+ Kd7 36. Qf6 Qe3+ 37. Kh2 Kc8 38. Rh3 Qd2 39. Qc3) 33. Nxe8?? { (8.66 → Mate in 1) Checkmate is now unavoidable. Ng8+ was best. } (33. Ng8+ Kd7 34. Qxb2 Rb6 35. Qc3 Kc8 36. Kf2 Rd4 37. Rh8 e5 38. Nf6 Rxf4+ 39. Ke3 Rd4) 33... Rxe8?? { (Mate in 1 → 9.10) Lost forced checkmate sequence. Rd1# was best. } (33... Rd1#) 34. Qxf7+?? { (9.10 → 0.00) Blunder. Qxb2 was best. } (34. Qxb2 Rf8) 34... Kd6 35. Qxe8 Qc1+ 36. Kf2 Qxf4+ 37. Kg1 Qe3+ 38. Kh2 Qf4+ 39. g3 Qf2+ 40. Kh3 Ne5?? { (0.00 → 11.12) Blunder. Qf5+ was best. } (40... Qf5+ 41. Kh2 Qc2+ 42. Kg1 Qb1+ 43. Kf2 Qb2+ 44. Kf1 Qb1+) 41. Rd1+ Kc5 42. Rxc7+ Kb6?! { (10.48 → Mate in 1) Checkmate is now unavoidable. Nc6 was best. } (42... Nc6) 43. Qb8# { White wins by checkmate. } 1-0
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting