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Puzzles (3 cohencoins award for each match):

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/mrqxCbWX"] [Date "2025.11.22"] [White "Christian1"] [Black "Sasha"] [Result "1-0"] [UTCDate "2025.11.22"] [UTCTime "18:20:11"] [WhiteElo "1671"] [BlackElo "1476"] [WhiteRatingDiff "+3"] [BlackRatingDiff "-5"] [WhiteTitle "NM🐍"] [BlackTitle "IM🧁"] [Variant "Standard"] [TimeControl "420+2"] [ECO "A46"] [Opening "Indian Defense: Knights Variation"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. d4 Nf6 2. Nf3 { A46 Indian Defense: Knights Variation } Nc6?! { (0.30 → 1.06) Inaccuracy. d5 was best. } (2... d5) 3. Bf4 e6 4. Nc3 Bb4 5. e3?! { (0.41 → -0.15) Inaccuracy. Qd3 was best. } (5. Qd3) 5... Bxc3+ 6. bxc3 d6 7. Bb5 Bd7 8. O-O O-O 9. Bd3 Qe7 10. Ng5? { (0.08 → -1.25) Mistake. Bg5 was best. } (10. Bg5 h6) 10... g6?? { (-1.25 → 0.28) Blunder. e5 was best. } (10... e5 11. Bg3) 11. Qf3?? { (0.28 → -4.99) Blunder. e4 was best. } (11. e4 e5) 11... Kg7?? { (-4.99 → 0.13) Blunder. e5 was best. } (11... e5 12. Rab1 exf4 13. Rxb7 Qd8 14. Qxf4 Nh5 15. Qh4 Na5 16. Rbb1 h6 17. Nf3 Qxh4 18. Nxh4) 12. Ne4?? { (0.13 → -1.52) Blunder. e4 was best. } (12. e4 e5) 12... Nxe4 13. Bxe4 d5?? { (-1.38 → 1.32) Blunder. f5 was best. } (13... f5 14. Bxc6 Bxc6 15. Qg3 h6 16. c4 Rae8 17. d5 exd5 18. cxd5 Bxd5 19. h4 Bc6 20. Rfd1) 14. Bd3 f5? { (1.28 → 2.75) Mistake. f6 was best. } (14... f6 15. Bxc7 Rac8 16. Bg3 Nd8 17. Qe2 Rxc3 18. Rab1 b6 19. Rb3 Rc8 20. Ba6 Rc6 21. f3) 15. Qh3?? { (2.75 → 0.99) Blunder. Qg3 was best. } (15. Qg3 e5) 15... e5?? { (0.99 → 3.04) Blunder. h5 was best. } (15... h5) 16. Bh6+ Kf6?? { (3.30 → 7.14) Blunder. Kg8 was best. } (16... Kg8 17. Bxf8) 17. Bxf8?! { (7.14 → 5.12) Inaccuracy. f4 was best. } (17. f4 exf4) 17... Rxf8 18. Qh4+ Ke6 19. Qxe7+?! { (5.28 → 3.71) Inaccuracy. Qg3 was best. } (19. Qg3 Kf7 20. Rab1 b6 21. c4 dxc4 22. Bxc4+ Kg7 23. Rfe1 h5 24. h4 Qd6 25. dxe5 Nxe5) 19... Nxe7 20. f3?! { (4.51 → 3.17) Inaccuracy. c4 was best. } (20. c4 e4) 20... e4? { (3.17 → 5.55) Mistake. c5 was best. } (20... c5 21. dxc5 Rc8 22. Rfb1 Rxc5 23. Rxb7 e4 24. Bf1 Rxc3 25. Rxa7 Rxe3 26. a4 Rc3 27. Ra2) 21. fxe4 dxe4 22. Bc4+?? { (5.38 → 1.76) Blunder. Bxe4 was best. } (22. Bxe4 Nd5 23. Bxd5+ Kxd5 24. e4+ Kc4 25. exf5 Rxf5 26. Rxf5 Bxf5 27. Re1 c6 28. Re7 Kxc3) 22... Kd6 23. g4?! { (2.02 → 1.13) Inaccuracy. Bb3 was best. } (23. Bb3 Nd5 24. Bxd5 Kxd5 25. Rab1 b6 26. Rb4 Kd6 27. c4 c5 28. Rb2 cxd4 29. Rd1 Bc6) 23... Rg8?? { (1.13 → 6.99) Blunder. b5 was best. } (23... b5 24. Bb3 Nd5 25. gxf5 gxf5 26. Bxd5 Kxd5 27. Kf2 Kc4 28. a4 bxa4 29. Ra3 c5 30. Kg3) 24. Bxg8 Nxg8 25. gxf5 Bxf5 26. c4 c6 27. c5+ Kd5 28. Rac1 Kc4 29. Rfd1 b6 30. cxb6 axb6 31. Rb1 b5 32. Rb3 c5 33. d5 b4 34. d6 Kb5 35. d7 Bxd7 36. Rxd7 c4 37. Rb1 Ka4? { (9.32 → Mate in 5) Checkmate is now unavoidable. Kc6 was best. } (37... Kc6) 38. Rb7 b3 39. cxb3+ cxb3 40. R1xb3 Ka5 41. Ra7# { White wins by checkmate. } 1-0
Computer analysisMove timesCrosstableFEN & PGN
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