Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/YVHkVmQv"]
[Date "2025.10.24"]
[White "Abigail1"]
[Black "Terry"]
[Result "1/2-1/2"]
[UTCDate "2025.10.24"]
[UTCTime "23:18:09"]
[WhiteElo "980"]
[BlackElo "1010"]
[WhiteRatingDiff "+1"]
[BlackRatingDiff "-1"]
[BlackTitle "IM"]
[Variant "Standard"]
[TimeControl "420+2"]
[ECO "A00"]
[Opening "Van't Kruijs Opening"]
[Termination "Normal"]
[Annotator "cohenchessclub.com"]
1. e3 { A00 Van't Kruijs Opening } e6 2. Bc4 Nc6 3. Qf3? { (0.02 → -1.18) Mistake. Nf3 was best. } (3. Nf3 d5 4. Bb5 a6 5. Bxc6+ bxc6 6. c4 Nf6 7. d4 c5 8. O-O Bd6 9. cxd5 exd5) 3... Bc5?! { (-1.18 → -0.35) Inaccuracy. Ne5 was best. } (3... Ne5 4. Qe2 Nxc4 5. Qxc4 d5 6. Qe2 e5 7. e4 Ne7 8. Nf3 g6 9. Nxe5 Bg7 10. Nf3) 4. Qxf7+?? { (-0.35 → -11.46) Blunder. d4 was best. } (4. d4 Be7) 4... Kxf7 5. e4 b5 6. e5 bxc4 7. d3 cxd3 8. cxd3 Nxe5 9. Nf3 Nxf3+ 10. gxf3 Bb4+ 11. Nd2 Bxd2+ 12. Kxd2 Qg5+ 13. Ke2 d6 14. d4 e5 15. Kd3? { (-8.52 → Mate in 7) Checkmate is now unavoidable. Bxg5 was best. } (15. Bxg5 h6) 15... exd4? { (Mate in 7 → -9.11) Lost forced checkmate sequence. Ba6+ was best. } (15... Ba6+ 16. Kc2 Qf5+ 17. Kb3 Qd3+ 18. Ka4 Bb5+ 19. Ka5 Bc6 20. a4 Qb3 21. dxe5 Qb6#) 16. Kxd4? { (-9.11 → Mate in 5) Checkmate is now unavoidable. Bxg5 was best. } (16. Bxg5) 16... Qd8?! { (Mate in 5 → -18.83) Lost forced checkmate sequence. Qc5+ was best. } (16... Qc5+ 17. Ke4 Qc4+ 18. Ke3 Bf5 19. Kd2 Re8 20. Kd1 Qe2#) 17. f4 Nf6 18. f5 g6 19. f4 gxf5 20. Rg1 Rg8 21. Rf1?! { (-17.38 → Mate in 9) Checkmate is now unavoidable. Bd2 was best. } (21. Bd2 Rf8) 21... h5?! { (Mate in 9 → -18.70) Lost forced checkmate sequence. c5+ was best. } (21... c5+ 22. Kd3 Qe8 23. Be3 Qb5+ 24. Kd2 Rg2+ 25. Rf2 Ne4+ 26. Kc2 Qc4+ 27. Kb1 Qd3+ 28. Kc1) 22. Rf3 h4 23. Rh3 Rh8 24. b4 d5 { Black offers draw } 25. Kc5?! { (-17.46 → Mate in 7) Checkmate is now unavoidable. Rd3 was best. } (25. Rd3 Qd6 26. a3 Ne4 27. Ke3 Qb6+ 28. Rd4 c6 29. Ra2 a5) 25... c6?! { (Mate in 7 → -23.21) Lost forced checkmate sequence. Ne4+ was best. } (25... Ne4+ 26. Kd4 Qf6+ 27. Ke3 Qc3+ 28. Ke2 Ba6+ 29. b5 Bxb5+ 30. Rd3 Qxd3+ 31. Ke1 Qe2#) 26. Kxc6?! { (-23.21 → Mate in 1) Checkmate is now unavoidable. Kd4 was best. } (26. Kd4 Ne4) 26... Qd7+ 27. Kc5 Qc7+ 28. Kd4 Qxc1? { (Mate in 6 → -9.29) Lost forced checkmate sequence. Qc4+ was best. } (28... Qc4+ 29. Ke3 Re8+ 30. Kf2 Qe2+ 31. Kg1 Qd1+ 32. Kg2 Re2+ 33. Kf3 Qf1#) 29. Rxc1 Rb8 30. b5 Rxb5 31. a4 Rb4+ 32. Kc5 Rxf4 33. a5 Be6 34. Kc6 Rf3 35. a6 Rxh3 36. Rb1 Rxh2 37. Rb7+ Kg6 38. Rxa7 Ne8 39. Rb7 Bc8 40. Rb8 Be6 41. a7 Nd6 42. a8=Q Rxb8?? { (-7.30 → -2.91) Blunder. Nc8 was best. } (42... Nc8 43. Qa4 d4 44. Qd1 Rg2 45. Kc5 Rd8 46. Qe1 Rc2+ 47. Kb4 Rd6 48. Qxh4 Rb2+ 49. Kc5) 43. Qxb8 Bc8?? { (-2.46 → 5.93) Blunder. Re2 was best. } { Black offers draw } (43... Re2 44. Qxd6 Re4 45. Qh2 Kh5 46. Qh1 f4 47. Qf3+ Bg4 48. Qd3 Re6+ 49. Kxd5 h3 50. Qh7+) 44. Qxd6+ Kg5 45. Qxh2 f4?! { (5.93 → 57.71) Inaccuracy. d4 was best. } (45... d4 46. Qg1+ Kf4 47. Qc1+ Ke5 48. Qc5+ Kf4 49. Kc7 d3 50. Qf2+ Kg5 51. Kxc8 d2 52. Qxd2+) 46. Qd2?! { (57.71 → 6.27) Inaccuracy. Kd6 was best. } (46. Kd6) 46... Kg4?! { (6.27 → 59.74) Inaccuracy. d4 was best. } (46... d4 47. Kd6) 47. Qxd5? { (59.74 → 4.15) Mistake. Qg2+ was best. } (47. Qg2+ Kh5 48. Qxd5+ Kg4 49. Qg8+ Kf3 50. Qxc8 Kg3 51. Qg8+ Kf3 52. Qe6 Kg3 53. Qg6+ Kf2) 47... f3? { (4.15 → 57.80) Mistake. Kg3 was best. } (47... Kg3 48. Kc7) 48. Qd1? { (57.80 → 4.84) Mistake. Qg8+ was best. } (48. Qg8+ Kf4 49. Qxc8 Kg3 50. Qg8+ Kf2 51. Qg4 Ke3 52. Qe6+ Kf2 53. Qf5 Ke3 54. Qe5+ Kd3) 48... h3 49. Kd5 Kg3?! { (4.50 → 7.30) Inaccuracy. Bb7+ was best. } (49... Bb7+ 50. Kd4) 50. Ke4 f2 51. Ke3 h2 52. Ke2?? { (60.30 → Mate in 7) Checkmate is now unavoidable. Qf3+ was best. } (52. Qf3+ Kh4 53. Qxf2+ Kg5 54. Qxh2 Be6 55. Qe5+ Bf5 56. Qe7+ Kg6 57. Kf4 Bb1 58. Qc7 Kf6) 52... Kg2?? { (Mate in 7 → 60.22) Lost forced checkmate sequence. Bg4+ was best. } (52... Bg4+ 53. Kd2 Bxd1 54. Kd3 f1=Q+ 55. Kd4 h1=Q 56. Kc5 Qb7 57. Kd6 Qf4+ 58. Kc5 Qfb4#) 53. Qe1?? { (60.22 → Mate in 9) Checkmate is now unavoidable. Qf1+ was best. } (53. Qf1+ Kg3 54. Qxf2+ Kh3 55. Qf3+ Kh4 56. Qg2 Bf5 57. Qxh2+ Kg5 58. Ke3 Kf6 59. Kf4 Ke6) 53... h1=Q?? { (Mate in 9 → 0.00) Lost forced checkmate sequence. fxe1=Q+ was best. } (53... fxe1=Q+ 54. Kxe1 h1=Q+ 55. Kd2 Qh3 56. Kc2 Qa3 57. Kd2 Qb3 58. Kc1 Qc3+ 59. Kb1 Qd2 60. Ka1) 54. Qxf2+ Kh3 55. Qf8 Qa8 56. Ke3 Bd7?? { (0.00 → Mate in 9) Checkmate is now unavoidable. Qa7+ was best. } (56... Qa7+ 57. Kd3 Kg4 58. Qxc8+ Kg5 59. Qf8 Qa6+ 60. Kc3 Qa5+ 61. Qb4 Qxb4+ 62. Kxb4 Kf4 63. Kc4) 57. Qxa8 Bc6 58. Qxc6 Kh4 59. Qg6 Kh3 60. Kf4 Kh4 61. Kf3 Kh3 62. Kf2 Kh4 63. Kg2 { Draw by stalemate. } 1/2-1/2