Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/Fhv50axB"]
[Date "2026.08.21"]
[White "Jenna"]
[Black "Eitan1"]
[Result "1-0"]
[UTCDate "2026.08.21"]
[UTCTime "23:39:55"]
[WhiteElo "1443"]
[BlackElo "1213"]
[WhiteRatingDiff "+5"]
[BlackRatingDiff "-3"]
[WhiteTitle "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 } d6 4. h3 f6?? { (0.46 → 2.42) Blunder. Nd4 was best. } (4... Nd4) 5. Bc4? { (2.42 → 1.25) Mistake. d4 was best. } (5. d4 a6 6. Be3 g6 7. Bc4 Bh6 8. Qd2 Bxe3 9. Qxe3 b5 10. Bb3 Na5 11. Bxg8 Rxg8) 5... Nh6 6. d3 Na5?! { (1.50 → 2.09) Inaccuracy. Nf7 was best. } (6... Nf7) 7. Bd5? { (2.09 → 0.66) Mistake. Bxh6 was best. } (7. Bxh6 Nxc4 8. dxc4 gxh6 9. Nh4 Be6 10. b3 Qd7 11. Qf3 O-O-O 12. Rd1 Rg8 13. Rd3 Be7) 7... c6 8. Bc4? { (0.64 → -0.40) Mistake. Bxh6 was best. } (8. Bxh6 cxd5) 8... Nxc4 9. dxc4 d5?? { (-0.45 → 2.02) Blunder. Nf7 was best. } (9... Nf7 10. Qd3 Be7 11. Be3 Be6 12. Nd2 O-O 13. a4 Qd7 14. g4 Nh8 15. O-O-O) 10. cxd5 cxd5? { (2.01 → 4.08) Mistake. Nf7 was best. } (10... Nf7 11. a3) 11. Nxd5 Nf7 12. O-O Nd6?! { (3.17 → 4.07) Inaccuracy. Be6 was best. } (12... Be6 13. Qe2) 13. Be3?! { (4.07 → 2.82) Inaccuracy. Qe2 was best. } (13. Qe2) 13... Nxe4?! { (2.82 → 4.25) Inaccuracy. Be6 was best. } (13... Be6 14. Qd3) 14. Nc3?? { (4.25 → -1.44) Blunder. Nxe5 was best. } (14. Nxe5 Bf5) 14... Nxc3 15. Qxd8+ Kxd8 16. bxc3 e4?? { (-1.58 → 0.49) Blunder. Bf5 was best. } (16... Bf5 17. Ne1 Ba3 18. Nd3 b6 19. f4 e4 20. Nb4 Rc8 21. Rad1+ Ke8 22. Bd4 Kf7 23. g4) 17. Rad1+ Ke8 18. Nd4 Bc5?! { (0.06 → 0.65) Inaccuracy. a6 was best. } (18... a6 19. c4 Kf7 20. Rb1 Be7 21. Nb3 b5 22. Na5 Be6 23. cxb5 axb5 24. Rxb5 Rhc8 25. c4) 19. Nb5 Bxe3 20. fxe3 Ke7 21. Rd4 f5 22. Rd5?! { (0.56 → 0.00) Inaccuracy. Nc7 was best. } (22. Nc7 Rb8) 22... g6?! { (0.00 → 0.56) Inaccuracy. Bd7 was best. } (22... Bd7 23. g4 g6 24. Nd4 Rac8 25. gxf5 gxf5 26. Nxf5+ Bxf5 27. Rfxf5 Rxc3 28. Rfe5+ Kf6 29. Rf5+) 23. Rfd1?? { (0.56 → -1.92) Blunder. Re5+ was best. } (23. Re5+ Kf6 24. Rxe4 Bd7 25. Nc7 Rad8 26. Nd5+ Kg5 27. Rd4 Bc6 28. c4 Rhe8 29. h4+ Kh6) 23... Ke6?? { (-1.92 → 7.50) Blunder. Be6 was best. } (23... Be6 24. Re5 Kf6 25. Rc5 Rac8 26. Nc7 Rhd8 27. Rd4 Ke7 28. a3 b6 29. Rxd8 Rxd8 30. Re5) 24. Nc7+ Kf6 25. Nxa8 Be6 26. Nc7 Bxd5 27. Nxd5+ Ke6 28. Nc7+ Kf7 29. Nb5 Ke7 30. Nxa7 b6 31. Nb5 Ra8 32. Rd6 Rxa2 33. Rxb6 Ra1+ 34. Kh2 Rb1 35. Rb7+ Kf6 36. Nd6 Rxb7 37. Nxb7 Ke5 38. c4 f4 39. c5 fxe3 40. Kg1 e2 41. Kf2 Kd4 42. c6 e3+ 43. Kxe2 Ke4 44. c7 g5 45. c8=Q Kf4 46. Qg4+ Ke5 47. Qxg5+ Ke4 48. Qxe3+ Kf5 49. c4 Kg6 50. c5 Kf6 51. c6 Kg6 52. c7 h5 53. c8=Q h4 54. Qf4 Kh5 55. Qcg4# { White wins by checkmate. } 1-0