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Puzzles (3 cohencoins award for each match):

Puzzle Cr5Y2: 288

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/S7GsK0Ar"] [Date "2025.07.07"] [White "Isaac11"] [Black "Joey1"] [Result "1-0"] [UTCDate "2025.07.07"] [UTCTime "23:11:25"] [WhiteElo "1741"] [BlackElo "1223"] [WhiteRatingDiff "+41"] [BlackRatingDiff "-10"] [WhiteTitle "IM"] [BlackTitle "NM"] [Variant "Standard"] [TimeControl "420+2"] [ECO "B01"] [Opening "Scandinavian Defense: Mieses-Kotroc Variation"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 d5 2. exd5 Qxd5 { B01 Scandinavian Defense: Mieses-Kotroc Variation } 3. Nc3 Qe6+?! { (0.79 → 1.46) Inaccuracy. Qd8 was best. } (3... Qd8 4. Nf3) 4. Nce2? { (1.46 → -0.01) Mistake. Be2 was best. } (4. Be2) 4... Qc6?! { (-0.01 → 0.87) Inaccuracy. g6 was best. } (4... g6 5. Nf3 Nf6 6. g3 Bg7 7. Bg2 O-O 8. O-O Qa6 9. d3 c5 10. Nc3 Nc6 11. Re1) 5. Nd4?! { (0.87 → 0.00) Inaccuracy. Nf3 was best. } (5. Nf3 e6) 5... Qd6 6. Nb5 Qc6?! { (0.44 → 1.11) Inaccuracy. Qd8 was best. } (6... Qd8) 7. Nd4? { (1.11 → -0.10) Mistake. d4 was best. } (7. d4) 7... Qc5? { (-0.10 → 1.14) Mistake. Qe4+ was best. } (7... Qe4+ 8. Nge2) 8. Nb3 Qc4?? { (0.90 → 12.52) Blunder. Qd6 was best. } (8... Qd6 9. d4 Nf6 10. Nf3 b6 11. g3 Bb7 12. Bg2 e6 13. O-O a5 14. Bf4 Qd8 15. Re1) 9. Bxc4 a6 10. Qf3 a5 11. Nd4 e5?! { (12.84 → Mate in 3) Checkmate is now unavoidable. Nf6 was best. } (11... Nf6 12. Qb3 e6 13. Qg3 c6 14. Ngf3 Nbd7 15. b3 Bc5 16. O-O O-O 17. d3) 12. Nde2?! { (Mate in 3 → 12.61) Lost forced checkmate sequence. Qxf7+ was best. } (12. Qxf7+ Kd8 13. Qxf8+ Kd7 14. Be6#) 12... e4 13. Qxe4+ Ne7 14. Qf4 Nec6 15. Qxf7+ Kd8 16. Nf4 Ne5 17. Ne6+ Bxe6 18. Qxe6 Nxc4 19. Qxc4 Be7 20. Qg4 Re8 21. Qxg7?! { (13.25 → 6.50) Inaccuracy. Kf1 was best. } (21. Kf1 Bf6 22. d4 Nd7 23. c3 c5 24. dxc5 Nxc5 25. Qf5 b6 26. Qxh7 Kc7 27. Bf4+ Kb7) 21... Bf8+ 22. Qe5 Rxe5+ 23. Ne2 Nc6 24. f4 Re6 25. f5?! { (5.62 → 4.12) Inaccuracy. Kd1 was best. } (25. Kd1) 25... Re8?! { (4.12 → 5.66) Inaccuracy. Re5 was best. } (25... Re5 26. c3 Kd7 27. d4 Rxf5 28. Bf4 Re8 29. Rf1 a4 30. Kd2 Na5 31. Kd3 Rb5 32. Rab1) 26. f6?? { (5.66 → -3.17) Blunder. Kd1 was best. } (26. Kd1 Bd6 27. d3 a4 28. Rf1 Bxh2 29. g3 Ra5 30. Bf4 a3 31. bxa3 Rxf5 32. Rb1 Kd7) 26... Bd6?? { (-3.17 → 5.62) Blunder. Nd4 was best. } (26... Nd4) 27. f7 Rf8 28. Rf1 Nb4 29. Kd1 Bxh2 30. c3 Nd5 31. c4 Nb4 32. a3 Nd3 33. Kc2 Ne5 34. g4?? { (7.24 → 3.02) Blunder. d4 was best. } (34. d4) 34... Nxg4 35. d3 Be5?? { (2.10 → 4.81) Blunder. Ra6 was best. } (35... Ra6 36. Bd2 Kd7 37. Nc3 Rf6 38. Rxf6 Nxf6 39. Rf1 Ke6 40. d4 c6 41. Bg5 Rxf7 42. d5+) 36. Bh6?? { (4.81 → -5.29) Blunder. d4 was best. } (36. d4 Bf6 37. Rg1 h5 38. Nf4 Ke7 39. Nxh5 Rh8 40. Nxf6 Rh2+ 41. Kb3 Nxf6 42. Bf4 a4+) 36... Nxh6 37. d4 Bd6 38. c5 Be7 39. d5 c6?? { (-4.45 → -0.39) Blunder. Rxf7 was best. } (39... Rxf7) 40. dxc6 bxc6 41. Nd4 Bxc5?! { (-0.35 → 0.36) Inaccuracy. Kc8 was best. } (41... Kc8 42. Rae1 Kd7 43. Rd1 Rxf7 44. Nf5+ Kc7 45. Nxh6 Rxf1 46. Rxf1 Rf8 47. Rh1 Rf4 48. b4) 42. Nxc6+?? { (0.36 → -1.77) Blunder. Ne6+ was best. } (42. Ne6+ Ke7 43. Rae1 Rxf7 44. Nc7+ Kd7 45. Nxa8 Kc8 46. Rxf7 Nxf7 47. Rh1 h6 48. Rh5 Ng5) 42... Kc7 43. Ne5 Bd6? { (-1.95 → -0.84) Mistake. Ra6 was best. } (43... Ra6) 44. Nd3?? { (-0.84 → -4.17) Blunder. Rae1 was best. } (44. Rae1 Kd8 45. Rd1 Ke7 46. Rde1 Rfc8+ 47. Kd3 Bxe5 48. Rxe5+ Kf8 49. Re8+ Rxe8 50. fxe8=N+ Kxe8) 44... Ng4?? { (-4.17 → -1.79) Blunder. Nxf7 was best. } (44... Nxf7 45. Rac1) 45. Rae1 Nh2? { (-1.65 → -0.37) Mistake. Kc6 was best. } (45... Kc6 46. Rf5) 46. Rf2? { (-0.37 → -1.47) Mistake. Rf5 was best. } (46. Rf5 Ng4) 46... Ng4 47. Rf4?? { (-1.41 → -5.98) Blunder. Rf3 was best. } (47. Rf3 Kc6 48. Rh1 Rh8 49. Rfh3 Ra7 50. Rxh7 Rf8 51. R7h5 Rfxf7 52. Rg5 Ne3+ 53. Kb1 Rf1+) 47... Bxf4 48. Nxf4 Rxf7 49. Nd5+ Kc6 50. Nc3 Rf2+ 51. Kd3 h5 52. Ne4 Rf4 53. Kd4 Rd8+ 54. Kc4 Nh6 55. Re2 h4 56. Rd2?? { (-6.95 → Mate in 11) Checkmate is now unavoidable. Kb3 was best. } (56. Kb3 Rd4) 56... Rxe4+ 57. Kc3 Rc8? { (Mate in 10 → -9.20) Lost forced checkmate sequence. Re3+ was best. } (57... Re3+ 58. Kc2 Rxd2+ 59. Kxd2 Nf5 60. b4 h3 61. b5+ Kxb5 62. a4+ Kc4 63. Kc1 h2 64. Kc2) 58. Kd3 Rce8 59. Rc2+ Kb6 60. b4 axb4 61. axb4?! { (-71.18 → Mate in 10) Checkmate is now unavoidable. Rg2 was best. } (61. Rg2 Re3+) 61... h3?! { (Mate in 10 → -59.03) Lost forced checkmate sequence. Re3+ was best. } (61... Re3+ 62. Kd2 Re2+ 63. Kc3 Rxc2+ 64. Kxc2 Kb5 65. Kc3 h3 66. Kd4 h2 67. Kd3 h1=Q 68. Kc3) 62. Rh2?! { (-59.03 → Mate in 14) Checkmate is now unavoidable. Rc5 was best. } (62. Rc5 Re3+) 62... Nf7?? { (Mate in 14 → -6.93) Lost forced checkmate sequence. Re3+ was best. } (62... Re3+ 63. Kc2 Re2+ 64. Rxe2 Rxe2+ 65. Kd3 Re1 66. Kd2 Re4 67. Kd3 Rxb4 68. Kc3 Kb5 69. Kd2) 63. Rxh3 Ne5+?? { (-10.71 → 0.01) Blunder. Kb5 was best. } (63... Kb5 64. Rh7 Re3+ 65. Kd2 Re2+ 66. Kc1 Ng5 67. Rb7+ Kc4) 64. Kxe4 { Black resigns. } 1-0
Computer analysisMove timesCrosstableFEN & PGN
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