Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/5t23r9hU"]
[Date "2025.10.17"]
[White "Bohdan"]
[Black "RoWaN"]
[Result "1-0"]
[UTCDate "2025.10.17"]
[UTCTime "20:26:39"]
[WhiteElo "1487"]
[BlackElo "1672"]
[WhiteRatingDiff "+19"]
[BlackRatingDiff "-14"]
[WhiteTitle "🐍"]
[BlackTitle "NM🎼"]
[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. Bc4 Nf6?! { (0.65 → 1.62) Inaccuracy. Na5 was best. } (4... Na5 5. Be2 c5 6. Nd5 Nf6 7. Nxf6+ Qxf6 8. c3 Nc6 9. O-O Be7 10. d3 Qg6 11. Nd2) 5. O-O? { (1.62 → 0.30) Mistake. Ng5 was best. } (5. Ng5 d5 6. exd5 Na5 7. Bb5+ c6 8. dxc6 bxc6 9. Be2 h6 10. Nge4 Nxe4 11. Nxe4 Be7) 5... Be7 6. Ng5? { (0.53 → -0.50) Mistake. d4 was best. } (6. d4 Bg4 7. dxe5 Nxe5 8. Be2 Nxf3+ 9. Bxf3 Bxf3 10. Qxf3 O-O 11. Rd1 Nd7 12. e5 Nxe5) 6... O-O 7. d3 a6 8. Nd5?? { (-0.09 → -2.39) Blunder. a3 was best. } (8. a3 Nd4 9. h3 c6 10. f4 exf4 11. Bxf4 d5 12. Ba2 Ne6 13. Nxe6 Bxe6 14. Kh1 dxe4) 8... Nxd5 9. Bxd5?? { (-2.50 → -8.23) Blunder. exd5 was best. } (9. exd5) 9... Nd4?? { (-8.23 → 0.26) Blunder. Bxg5 was best. } (9... Bxg5 10. Bxg5 Qxg5 11. Bxc6 bxc6 12. f4 exf4 13. Qd2 Qd8 14. b3 f3 15. d4 fxg2 16. Rf2) 10. Qh5 Bxg5 11. Bxg5 g6?? { (0.23 → 6.69) Blunder. Qd7 was best. } (11... Qd7 12. c3) 12. Qh6 Qxg5 13. Qxg5 c6 14. Bc4 Nxc2 15. Rac1 Nd4 16. h4 Ne2+ 17. Kh1 Nxc1 18. Rxc1 b5 19. h5 bxc4 20. h6 f6 21. Qd2 cxd3 22. Qxd3 c5 23. Qc4+ Kh8 24. Qd5 Ra7 25. Qxd6 Re8 26. Qxf6+ Kg8 27. Qg7+?? { (9.23 → -5.58) Blunder. Qc6 was best. } (27. Qc6 Rd7) 27... Rxg7 28. hxg7 Kxg7 29. Rxc5 Bb7?? { (-4.68 → 2.30) Blunder. Kf6 was best. } (29... Kf6 30. Rc7 Rd8 31. Rc6+ Ke7 32. Rc7+ Bd7 33. Ra7 Rf8 34. f3 Rf6 35. b4 g5 36. a4) 30. Rc7+ Kh6 31. Rxb7 Rd8 32. g4?? { (3.35 → 0.14) Blunder. f3 was best. } (32. f3) 32... Rd1+?! { (0.14 → 0.76) Inaccuracy. Rd4 was best. } (32... Rd4 33. Kg2 Rxe4 34. Kf3 Ra4 35. a3 Rf4+ 36. Kg3 Kg5 37. Rxh7 a5 38. b3 e4 39. Kg2) 33. Kh2 Rf1?? { (0.51 → 2.19) Blunder. Re1 was best. } (33... Re1 34. f3 Kg5 35. Rxh7 Re2+ 36. Kg3 Rxb2 37. Rc7 Rxa2 38. Rc5 Kf6 39. g5+ Kxg5 40. Rxe5+) 34. Kg3 Rg1+ 35. Kh4 g5+? { (2.00 → 3.48) Mistake. Rh1+ was best. } (35... Rh1+ 36. Kg3) 36. Kh3 Rh1+? { (3.71 → 6.01) Mistake. Re1 was best. } (36... Re1 37. f3) 37. Kg2 Rh4 38. Rb6+ Kg7 39. Kg3 a5 40. Ra6 Rh6?! { (4.93 → 7.82) Inaccuracy. h5 was best. } (40... h5 41. Ra7+ Kh6 42. f3 hxg4 43. fxg4 Rh1 44. Ra6+ Kg7 45. Rxa5 Rg1+ 46. Kf3 Rf1+ 47. Ke3) 41. Rxa5 Rd6 42. Rxe5 Rd3+ 43. Kg2 Kf6 44. Rf5+ Kg6 45. b4 Rd4 46. b5 Rxe4 47. Kf3?! { (7.39 → 5.30) Inaccuracy. Rf3 was best. } (47. Rf3) 47... Rb4 48. a3? { (6.70 → 3.84) Mistake. Rc5 was best. } (48. Rc5) 48... Rb3+ 49. Ke4 Rxa3 50. b6?? { (4.73 → 0.00) Blunder. Rd5 was best. } (50. Rd5 Rb3 51. Rd6+ Kf7 52. b6 Rb4+ 53. Ke5 Rb5+ 54. Kd4 Ke7 55. Rh6 Kd8 56. Kc4 Rb2) 50... Ra4+?? { (0.00 → 4.89) Blunder. Rb3 was best. } (50... Rb3 51. Rf8 Rxb6 52. Rg8+ Kh6 53. Ra8 Rb3 54. Ra5 Kg6 55. Ra6+ Kg7 56. Ra7+ Kh6) 51. Ke3?? { (4.89 → 0.00) Blunder. Ke5 was best. } (51. Ke5 Rb4 52. Rf6+ Kg7 53. Rd6 Kf7 54. f3 Rb3 55. Kd5 Rxf3 56. b7 Rb3 57. Kc6 Rxb7) 51... Rb4 52. f4 h5?? { (0.00 → 6.85) Blunder. gxf4+ was best. } (52... gxf4+ 53. Rxf4 Rxb6 54. Kf2 Kg5 55. Kg3 Rb3+ 56. Rf3 Rxf3+ 57. Kxf3 Kg6 58. Kg3 Kg5 59. Kf3) 53. Rxg5+ Kf6 54. Rxh5 Rb3+ 55. Ke4 Rxb6? { (7.75 → Mate in 12) Checkmate is now unavoidable. Rb4+ was best. } (55... Rb4+ 56. Kd5 Kg7 57. Kc5 Rxf4 58. b7 Rf8 59. Rf5 Rb8 60. Kb6 Kg6 61. Rc5 Rg8 62. Ka7) 56. Rh6+ { Black resigns. } 1-0