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Puzzles (3 cohencoins award for each match):

Puzzle XtPfi: 635

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/o42yvZDT"] [Date "2025.10.10"] [White "Trekker"] [Black "Drew"] [Result "1/2-1/2"] [UTCDate "2025.10.10"] [UTCTime "20:45:13"] [WhiteElo "1836"] [BlackElo "1631"] [WhiteRatingDiff "-4"] [BlackRatingDiff "+5"] [WhiteTitle "GM🎅"] [BlackTitle "GM"] [Variant "Standard"] [TimeControl "420+2"] [ECO "A27"] [Opening "English Opening: King's English Variation, Three Knights System"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. c4 e5 2. Nc3 Nc6 3. Nf3 { A27 English Opening: King's English Variation, Three Knights System } d6?! { (0.26 → 0.96) Inaccuracy. Nf6 was best. } (3... Nf6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Nb6 7. O-O Be7 8. d3 O-O 9. a3 a5 10. Be3) 4. e3?! { (0.96 → 0.39) Inaccuracy. d4 was best. } (4. d4 exd4 5. Nxd4 Nxd4 6. Qxd4 Nf6 7. g3 c6 8. Bg2 Be6 9. b3 h5 10. Bg5 Qa5) 4... Nf6 5. d4 e4?! { (0.75 → 1.30) Inaccuracy. g6 was best. } (5... g6 6. d5 Ne7 7. e4 Bg7 8. h3 Nh5 9. g4 Nf4 10. Be3 f5 11. gxf5 gxf5) 6. Nd2 d5?! { (1.32 → 2.45) Inaccuracy. Bf5 was best. } (6... Bf5 7. Be2) 7. cxd5 Nxd5 8. Ndxe4 Bb4 9. Bd2 Bxc3?! { (2.93 → 4.02) Inaccuracy. O-O was best. } (9... O-O 10. a3) 10. Nxc3 Be6 11. a3?! { (3.98 → 3.00) Inaccuracy. e4 was best. } (11. e4 Nxc3) 11... Na5?! { (3.00 → 4.62) Inaccuracy. f5 was best. } (11... f5) 12. e4?! { (4.62 → 3.17) Inaccuracy. Na4 was best. } (12. Na4 Nc6 13. Bd3 O-O 14. O-O Nce7 15. Nc5 Bc8 16. e4 Nf6 17. Nb3 Re8 18. Re1 Ng6) 12... Nxc3 13. Bxc3?! { (3.90 → 2.82) Inaccuracy. Bxc3 was best. } (13. Bxc3) 13... Nb3 14. Rb1 O-O?? { (2.97 → 6.46) Blunder. Qg5 was best. } (14... Qg5 15. h4) 15. d5 Bxd5 16. exd5 Re8+ 17. Be2 Qe7 18. O-O Qxe2 19. Qxb3 b6 20. Qd1 Qa6 21. Qg4 g6 22. Qh4 Rad8 23. Qh6 Qxf1+ 24. Rxf1 f6 25. Qg7+?? { (9.69 → -7.38) Blunder. Bxf6 was best. } (25. Bxf6 Rd7 26. h4 Rf7 27. Qg5 b5 28. h5 Rxf6 29. Qxf6 Rf8 30. Qe6+ Kg7 31. Rc1 Kh6) 25... Kxg7 26. Rd1 c6 27. d6 Re6 28. f4 Rexd6 29. Re1 Rd1 30. Kf2 Rxe1 31. Kxe1 b5 32. g4 c5 33. Ke2 b4 34. axb4 cxb4 35. Bxb4 Rb8 36. Bc3 g5?? { (-6.88 → -0.32) Blunder. Kf7 was best. } (36... Kf7 37. Kd3 Ke6 38. Kc4 h5 39. h3 f5 40. gxh5 gxh5 41. Bd4 a6 42. Kc5 Rg8 43. Kb6) 37. fxg5 Re8+ 38. Kf3 Kg6 39. gxf6 a5 40. Bxa5 Kxf6 41. Bc3+ Kg5 42. b4 Rd8 43. Ke4 Kxg4 44. b5?? { (-0.12 → -4.37) Blunder. Bd4 was best. } (44. Bd4) 44... Re8+?? { (-4.37 → 3.66) Blunder. Rb8 was best. } (44... Rb8) 45. Kd5?? { (3.66 → -0.38) Blunder. Be5 was best. } (45. Be5) 45... Kf5 46. b6?! { (0.00 → -0.53) Inaccuracy. Bb4 was best. } (46. Bb4 Rb8 47. Kc6 Rc8+ 48. Kd6 Rb8) 46... Rd8+ 47. Kc6?? { (-0.61 → -10.17) Blunder. Kc4 was best. } (47. Kc4 Rc8+) 47... Rc8+ 48. Kd7 Rxc3 49. b7 Rb3 50. Kc7 Kg4 51. b8=Q Rxb8 52. Kxb8 h5 53. Kc7 Kh3 54. Kd6 Kxh2 55. Ke5 h4 56. Kf4 h3 57. Kf3 Kg1 58. Ke2 h2 59. Ke1 h1=Q 60. Kd1 Kg2+ 61. Kd2 Kf3 62. Kc2 Qe1 63. Kb2 Ke4 64. Ka2 Kd4 65. Ka3 Kc4 66. Kb2 Qd2+ 67. Ka3 Qc1+ 68. Ka2 Kc3 { Draw by stalemate. } 1/2-1/2
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting