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Puzzles (3 cohencoins award for each match):

Puzzle iV7Jb: 669

NM🎼 RoWaN (1667) +9
FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/HwPveacT"] [Date "2026.01.09"] [White "RoWaN"] [Black "Garyd"] [Result "1-0"] [UTCDate "2026.01.09"] [UTCTime "21:29:45"] [WhiteElo "1667"] [BlackElo "1603"] [WhiteRatingDiff "+9"] [BlackRatingDiff "-5"] [WhiteTitle "NM🎼"] [BlackTitle "GM🙌"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C50"] [Opening "Giuoco Piano"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 { C50 Giuoco Piano } 4. O-O d6 5. c3 Bg4 6. b4 Bb6 7. a4 a5 8. b5 Nce7? { (1.05 → 2.17) Mistake. Nb8 was best. } (8... Nb8 9. d4 Nd7 10. Bd5 Rb8 11. Ba2 Ngf6 12. Nbd2 O-O 13. Qc2 Bh5 14. Ba3 Re8 15. Rae1) 9. h3?! { (2.17 → 1.12) Inaccuracy. Bxf7+ was best. } (9. Bxf7+ Kxf7 10. Ng5+ Kg6 11. Qxg4 Nf6 12. Qg3 Nh5 13. Qh4 Nd5 14. exd5 Qxg5 15. Qxg5+ Kxg5) 9... Bh5 10. d4 c6?? { (1.01 → 3.18) Blunder. exd4 was best. } (10... exd4 11. cxd4 Nf6 12. Nbd2 O-O 13. Bb2 Nxe4 14. Nxe4 d5 15. Bd3 dxe4 16. Bxe4 c6 17. Re1) 11. Bg5?? { (3.18 → 0.43) Blunder. dxe5 was best. } (11. dxe5 dxe5) 11... d5 12. Bxe7?! { (0.50 → -0.49) Inaccuracy. Be2 was best. } (12. Be2 f6) 12... Qxe7?? { (-0.49 → 1.75) Blunder. Nxe7 was best. } (12... Nxe7 13. Be2 Bxf3 14. Bxf3 dxe4 15. Bxe4 exd4 16. Qh5 h6 17. Rd1 Qc7 18. bxc6 bxc6 19. cxd4) 13. exd5 cxd5 14. Bxd5 exd4?? { (1.74 → 6.80) Blunder. Nf6 was best. } (14... Nf6 15. dxe5 Nxd5 16. Qxd5 Rc8 17. Nbd2 O-O 18. Rac1 Rfd8 19. Qe4 h6 20. Rfe1 Bg6 21. Qg4) 15. Re1 Bxf3 16. Rxe7+ Kxe7 17. Qxf3 Nf6 18. cxd4 Bxd4 19. Ra2 Ra7 20. Re2+ Kf8? { (9.91 → Mate in 6) Checkmate is now unavoidable. Kd8 was best. } (20... Kd8 21. Qg3) 21. Qa3+ Kg8 22. Nc3? { (Mate in 5 → 9.28) Lost forced checkmate sequence. Re8+ was best. } (22. Re8+ Nxe8 23. Qe7 Bxf2+ 24. Kxf2 h5 25. Qxf7+ Kh7 26. Qxh5#) 22... Bxc3? { (9.28 → Mate in 4) Checkmate is now unavoidable. b6 was best. } (22... b6 23. Re7) 23. Qxc3?! { (Mate in 4 → 10.50) Lost forced checkmate sequence. Re8+ was best. } (23. Re8+ Nxe8 24. Qe7 h6 25. Qxf7+ Kh7 26. Be4#) 23... Ra8 24. Qc7 Nxd5 25. Qxb7 Rd8 26. Rd2 h6 27. Rxd5 Kh7 28. Rxd8 Rxd8 29. Qxf7 Rd1+ 30. Kh2 Ra1 31. Qf5+ Kh8 32. Qg4 Rb1?! { (11.47 → Mate in 9) Checkmate is now unavoidable. Ra2 was best. } (32... Ra2 33. Qd4) 33. Qe4? { (Mate in 9 → 9.60) Lost forced checkmate sequence. Qc8+ was best. } (33. Qc8+ Kh7 34. Qc2+ Kg8 35. Qxb1 Kf8 36. b6 Kf7 37. Qf5+ Ke7 38. b7 g6 39. Qxg6 h5) 33... Rb4 34. Qc2 Kg8 35. Kg3 Kh8 36. f4 Kg8 37. Kf3 Kh8 38. g4 Kg8 39. h4 Kh8 40. g5 h5?! { (11.37 → Mate in 5) Checkmate is now unavoidable. hxg5 was best. } (40... hxg5 41. hxg5) 41. Kg3?! { (Mate in 5 → 19.74) Lost forced checkmate sequence. g6 was best. } (41. g6 Rc4 42. Qf5 Rc3+ 43. Kf2 Rc2+ 44. Qxc2 Kg8 45. Qc8#) 41... Kg8 42. f5 Rg4+ 43. Kh3 Rb4?! { (29.18 → Mate in 5) Checkmate is now unavoidable. Kf7 was best. } (43... Kf7 44. Qc7+) 44. f6?! { (Mate in 5 → 22.50) Lost forced checkmate sequence. Qc8+ was best. } (44. Qc8+ Kf7 45. Qd7+ Kg8 46. Qd8+ Kh7 47. g6+ Kh6 48. Qg5#) 44... Kf7?! { (22.50 → Mate in 12) Checkmate is now unavoidable. gxf6 was best. } (44... gxf6 45. Qg6+) 45. fxg7?! { (Mate in 12 → 26.55) Lost forced checkmate sequence. Qc7+ was best. } (45. Qc7+ Ke6 46. fxg7 Rb3+ 47. Kg2 Rb2+ 48. Kf3 Rb3+ 49. Ke2 Rb2+ 50. Kd1 Rb1+ 51. Kc2 Rc1+) 45... Kxg7 46. Qc3+ Kg6?! { (74.09 → Mate in 10) Checkmate is now unavoidable. Kf7 was best. } (46... Kf7 47. Qxb4 axb4 48. b6 Ke6 49. b7 Kd5 50. b8=Q Kc5 51. Qb5+ Kd6 52. Qxb4+ Ke6 53. Qe4+) 47. Qf6+ Kh7 48. Qe7+?! { (Mate in 9 → 63.70) Lost forced checkmate sequence. g6+ was best. } (48. g6+ Kh6 49. g7+ Kh7 50. Qf8 Rb3+ 51. Kh2 Rb2+ 52. Kg3 Rb3+ 53. Kf4 Rb4+ 54. Ke5 Rg4) 48... Kg6 49. Qd6+ Kf5 50. Qd7+ Kg6? { (9.57 → Mate in 11) Checkmate is now unavoidable. Ke4 was best. } (50... Ke4 51. g6) 51. Qc6+?! { (Mate in 11 → 11.81) Lost forced checkmate sequence. Qe6+ was best. } (51. Qe6+ Kg7 52. Qe7+ Kg6 53. Qf6+ Kh7 54. Qf7+ Kh8 55. g6 Rxh4+ 56. Kg3 Rg4+ 57. Kf3 Rxg6) 51... Kf5 52. Qc8+ Kg6 53. Qa6+ Kf5 54. Qxa5 Rb3+ 55. Kg2 Rb2+ 56. Kf3 Rb3+ 57. Ke2 Rb2+ 58. Kd3 Rb3+ 59. Kc4 Rh3 60. b6+ Kg6?! { (24.80 → Mate in 8) Checkmate is now unavoidable. Ke6 was best. } (60... Ke6 61. Qd5+) 61. b7 Rxh4+ 62. Kb3 Rh3+ 63. Qc3 { Black resigns. } 1-0
Computer analysisMove timesCrosstableFEN & PGN
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