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Puzzles (3 cohencoins award for each match):

Puzzle 3gT4V: 5995

IM Holden2 (1506) +16
FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/GCDXrNaQ"] [Date "2025.10.13"] [White "Holden2"] [Black "ChessMasterPlayer"] [Result "1-0"] [UTCDate "2025.10.13"] [UTCTime "23:14:29"] [WhiteElo "1506"] [BlackElo "1483"] [WhiteRatingDiff "+16"] [BlackRatingDiff "-8"] [WhiteTitle "IM"] [BlackTitle "GM"] [Variant "Standard"] [TimeControl "420+2"] [ECO "B20"] [Opening "Sicilian Defense: Bowdler Attack"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 c5 2. Bc4 { B20 Sicilian Defense: Bowdler Attack } Nc6 3. Nf3 f6?? { (-0.08 → 1.64) Blunder. e6 was best. } (3... e6 4. O-O d5 5. exd5 exd5 6. Re1+ Be6 7. d4 Nf6 8. Bf1 Bd6 9. dxc5 Bxc5 10. Be3) 4. e5?? { (1.64 → -1.35) Blunder. O-O was best. } (4. O-O) 4... Nxe5?? { (-1.35 → 0.89) Blunder. fxe5 was best. } (4... fxe5 5. d3) 5. Nxe5 fxe5 6. Qh5+ g6 7. Qxe5 Nf6 8. d3?! { (1.14 → 0.28) Inaccuracy. Qxc5 was best. } (8. Qxc5) 8... d6 9. Qe2 Bf5?? { (-0.15 → 1.60) Blunder. d5 was best. } (9... d5 10. Bb3 Bg7 11. O-O O-O 12. c4 d4 13. Bg5 Qc7 14. Bh4 Nh5 15. Bg3 Nf4 16. Bxf4) 10. Qd2?? { (1.60 → -1.03) Blunder. Bg5 was best. } (10. Bg5 Bg7 11. Nc3 h6 12. Bxf6 Bxf6 13. O-O Kf8 14. Be6 Bxe6 15. Qxe6 Kg7 16. Rae1 Qc8) 10... Bg7 11. Qc3?! { (-0.70 → -1.74) Inaccuracy. Bb3 was best. } (11. Bb3) 11... d5 12. Bb5+ Bd7?! { (-1.50 → -0.68) Inaccuracy. Kf7 was best. } (12... Kf7 13. Qxc5) 13. Bxd7+ Qxd7 14. Qxc5 O-O 15. Be3?? { (-0.52 → -5.49) Blunder. O-O was best. } (15. O-O Rac8) 15... b6 16. Qb4 Rac8?? { (-7.02 → -1.09) Blunder. d4 was best. } (16... d4 17. Bc1 Qe6+ 18. Kf1 Nd5 19. Qe1 Rxf2+ 20. Qxf2 Rf8 21. Qxf8+ Kxf8 22. Na3 Kg8 23. h3) 17. Qd2?? { (-1.09 → -6.12) Blunder. Nc3 was best. } (17. Nc3 Ng4) 17... d4? { (-6.12 → -3.65) Mistake. Ng4 was best. } (17... Ng4) 18. Bh6?? { (-3.65 → -9.94) Blunder. Bg5 was best. } (18. Bg5 Qe6+ 19. Qe2 Qxe2+ 20. Kxe2 Rxc2+ 21. Nd2 Ng4 22. Rhf1 Rf5 23. h3 Rxg5 24. hxg4 Rxg4) 18... Bxh6 19. Qxh6 Rxc2? { (-10.30 → -4.83) Mistake. Qe6+ was best. } (19... Qe6+ 20. Kd1) 20. Na3? { (-4.83 → -11.03) Mistake. O-O was best. } (20. O-O Ng4) 20... Rxb2?! { (-11.03 → -5.46) Inaccuracy. Qe6+ was best. } (20... Qe6+ 21. Qe3) 21. Nc4?! { (-5.46 → -11.00) Inaccuracy. O-O was best. } (21. O-O Ng4) 21... Rc2?? { (-11.00 → -3.23) Blunder. Qe6+ was best. } (21... Qe6+) 22. h4?? { (-3.23 → -10.86) Blunder. O-O was best. } (22. O-O Qf5 23. Rae1 Ng4 24. Qh4 Rxf2 25. Rxf2 Nxf2 26. h3 e6 27. Nd6 Qf4 28. Qxf4 Rxf4) 22... b5 23. Na3 Rc3 24. Nb1 Rxd3 25. Ke2? { (-7.51 → Mate in 15) Checkmate is now unavoidable. O-O was best. } (25. O-O Qf5) 25... Ng4? { (Mate in 15 → -9.68) Lost forced checkmate sequence. Qe6+ was best. } (25... Qe6+ 26. Kxd3 Qc4+ 27. Kd2 Ne4+ 28. Ke1 Rxf2 29. Qd2 Rxd2 30. Nxd2 Qc3 31. Kf1 Nxd2+ 32. Kg1) 26. Qg5? { (-9.68 → Mate in 5) Checkmate is now unavoidable. Qxf8+ was best. } (26. Qxf8+ Kxf8) 26... Rxf2+? { (Mate in 5 → -9.37) Lost forced checkmate sequence. Qe6+ was best. } (26... Qe6+ 27. Qe5 Rxf2+ 28. Kxd3 Nxe5+ 29. Kxd4 Qc4+ 30. Ke3 Ng4#) 27. Kxd3 Rxg2 28. Qc5 Nf2+ 29. Ke2 Nxh1+ 30. Kf1 Rg4?! { (Mate in 5 → -10.70) Lost forced checkmate sequence. Rf2+ was best. } (30... Rf2+ 31. Ke1 Qe6+ 32. Qe5 Qxe5+ 33. Kd1 Qe2+ 34. Kc1 Qf1#) 31. Nd2 Qf5+ 32. Qxf5 gxf5 33. Rb1 Rxh4?! { (-8.11 → -4.74) Inaccuracy. Ng3+ was best. } (33... Ng3+ 34. Kf2) 34. Rxb5?! { (-4.74 → -7.54) Inaccuracy. Kg2 was best. } (34. Kg2) 34... f4?! { (-7.54 → -4.84) Inaccuracy. Rf4+ was best. } (34... Rf4+) 35. Rg5+ Kf7 36. Rf5+?! { (-5.56 → -7.53) Inaccuracy. Kg2 was best. } (36. Kg2 Ng3) 36... Kg6 37. Ra5 Rh2 38. Nf3 Rh3?! { (-9.00 → -4.97) Inaccuracy. Rf2+ was best. } (38... Rf2+ 39. Kg1 Rxf3 40. Kxh1 d3 41. Kg2 Rg3+ 42. Kf2 Re3 43. Rxa7 e5 44. Kg2 e4 45. Ra6+) 39. Ne5+ Kf6 40. Kg2 Re3?! { (-5.62 → -3.90) Inaccuracy. Rh5 was best. } (40... Rh5 41. Nd7+) 41. Ng4+ Ke6 42. Nxe3 fxe3 43. Kf3 h5?! { (-4.01 → -3.16) Inaccuracy. Nf2 was best. } (43... Nf2) 44. Rxh5?! { (-3.16 → -4.32) Inaccuracy. Rxh5 was best. } (44. Rxh5 Nf2 45. Ra5 Nd3 46. Ra6+ Kd5 47. Ra5+ Kc4 48. Rxa7 e5 49. Rc7+ Kd5 50. Rd7+ Kc5) 44... Nf2?! { (-4.32 → -3.13) Inaccuracy. Nf2 was best. } (44... Nf2 45. a4 Kd6 46. Ra5 e5 47. Ra6+ Kc5 48. Rxa7 e4+ 49. Ke2 Ng4 50. Re7 d3+ 51. Ke1) 45. Ra5?! { (-3.13 → -4.12) Inaccuracy. Ra5 was best. } (45. Ra5 Nd3 46. a3 Kd6 47. Ra6+ Kc5 48. Ra5+ Kc4 49. Rxa7 e5 50. Rc7+ Kd5 51. Rd7+ Kc5) 45... Kd6? { (-4.12 → -2.51) Mistake. Kf6 was best. } (45... Kf6) 46. Rxa7?! { (-2.51 → -3.93) Inaccuracy. Ra6+ was best. } (46. Ra6+ Kd5) 46... Kc5?? { (-3.93 → 0.12) Blunder. e5 was best. } (46... e5) 47. Rxe7 Kc4 48. a4 Kc3?? { (0.12 → 4.65) Blunder. Nd3 was best. } (48... Nd3 49. a5) 49. a5 d3 50. Rd7?? { (5.46 → 0.00) Blunder. Rxe3 was best. } (50. Rxe3) 50... d2?? { (0.00 → 2.67) Blunder. Ng4 was best. } (50... Ng4 51. Re7 Kc2 52. a6 d2 53. Rc7+ Kd1 54. a7 Ke1 55. Rd7 e2 56. Rxd2 Kxd2 57. a8=Q) 51. Ke2 d1=Q+?? { (2.87 → 58.26) Blunder. Kc2 was best. } (51... Kc2) 52. Rxd1 Nxd1 53. Kxd1 Kd3 54. a6 e2+ 55. Ke1 Ke3 56. a7 Kd3 57. a8=Q Ke3 58. Qa3+ Ke4 59. Kxe2 { Black resigns. } 1-0
Computer analysisMove timesCrosstableFEN & PGN
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