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Puzzles (3 cohencoins award for each match):

Puzzle EtdIy: 249

NM🎼 RoWaN (1720) −3
FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/NV57UCbW"] [Date "2025.11.28"] [White "RoWaN"] [Black "Benton"] [Result "0-1"] [UTCDate "2025.11.28"] [UTCTime "21:14:23"] [WhiteElo "1720"] [BlackElo "1986"] [WhiteRatingDiff "-3"] [BlackRatingDiff "+3"] [WhiteTitle "NM🎼"] [BlackTitle "GM☾"] [Variant "Standard"] [TimeControl "420+2"] [ECO "D30"] [Opening "Queen's Gambit Declined"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. d4 d5 2. c4 e6 { D30 Queen's Gambit Declined } 3. e3 Nf6 4. Nf3 Nc6?! { (0.23 → 0.81) Inaccuracy. Be7 was best. } (4... Be7 5. Nc3 O-O 6. b3 b6 7. Bb2 Bb7 8. Rc1 Nbd7 9. cxd5 Nxd5 10. Nxd5 Bxd5 11. Bd3) 5. c5 Bd7 6. Nc3?! { (0.75 → 0.00) Inaccuracy. a3 was best. } (6. a3 a5 7. Nc3 Ne4 8. Nxe4 dxe4 9. Nd2 f5 10. Rb1 Be7 11. b4 axb4 12. axb4 Bf6) 6... b6 7. Na4?! { (0.00 → -0.57) Inaccuracy. cxb6 was best. } (7. cxb6 axb6 8. Be2 Bd6 9. b3 O-O 10. O-O Qb8 11. Bb2 Ne7 12. a4 c6 13. Bd3 b5) 7... bxc5 8. Nxc5 Bxc5 9. dxc5 e5?! { (-0.79 → 0.01) Inaccuracy. Ne4 was best. } (9... Ne4 10. Be2 a5 11. Nd2 Nxc5 12. b3 O-O 13. O-O Nb4 14. Bb2 Qe7 15. a3 Nbd3 16. Bxd3) 10. Rb1?! { (0.01 → -0.56) Inaccuracy. b4 was best. } (10. b4 e4) 10... Bg4?? { (-0.56 → 2.97) Blunder. a5 was best. } (10... a5 11. Bb5) 11. Bb5 Bd7 12. O-O?? { (3.01 → 1.17) Blunder. Bxc6 was best. } (12. Bxc6) 12... e4?! { (1.17 → 2.00) Inaccuracy. Qe7 was best. } (12... Qe7 13. b3) 13. Nd4? { (2.00 → 0.90) Mistake. Bxc6 was best. } (13. Bxc6 Bxc6 14. Nd4 Bd7 15. b4 O-O 16. b5 Ng4 17. f4 exf3 18. Qxf3 a6 19. b6 cxb6) 13... Nxd4 14. Bxd7+ Qxd7 15. Qxd4 O-O 16. b4 c6 17. Ba3 Rab8?! { (0.24 → 1.09) Inaccuracy. Rfb8 was best. } (17... Rfb8 18. Bb2 Ne8 19. a4 f6 20. Bc3 Nc7 21. Qd1 Rb7 22. h3 h6 23. f4 exf3 24. Qxf3) 18. Rb3?! { (1.09 → 0.22) Inaccuracy. b5 was best. } (18. b5 Rfc8 19. bxc6 Qxc6 20. Rxb8 Rxb8 21. Bb2 Rb7 22. Qe5 Qxc5 23. Rc1 Qf8 24. h3 h5) 18... Rfe8 19. h3 h6 20. Rfb1 a6 21. Qd1 Rbd8?! { (0.21 → 0.81) Inaccuracy. Re5 was best. } (21... Re5 22. Bb2 Rg5 23. Bxf6 gxf6 24. Kh2 Kh7 25. f4 exf3 26. Qxf3 Rbg8 27. R1b2 Qe6 28. Rf2) 22. Qe2?! { (0.81 → 0.25) Inaccuracy. Bb2 was best. } (22. Bb2) 22... Qb7?! { (0.25 → 0.86) Inaccuracy. d4 was best. } (22... d4 23. exd4) 23. Bb2 Re6 24. Bd4?! { (0.91 → 0.29) Inaccuracy. a4 was best. } (24. a4 Nd7 25. Bd4 Rg6 26. Qb2 Rb8 27. Kh1 Qc8 28. Qe2 Ra8 29. Qf1 Rb8 30. b5 cxb5) 24... Qb5?! { (0.29 → 1.25) Inaccuracy. Ne8 was best. } (24... Ne8 25. R3b2 Nc7 26. a4 f6 27. Qg4 Rde8 28. h4 Qc8 29. f4 exf3 30. gxf3 R8e7 31. Rg2) 25. Qd2 Nd7 26. Ra1 Ne5 27. a4 Qb7 28. a5?? { (0.85 → -1.41) Blunder. Bxe5 was best. } (28. Bxe5 Rxe5) 28... Nc4 29. Qc3 Rg6 30. Kh2 Qc7+ 31. Kh1 f5 32. Rg1 f4 33. Qc1 f3 34. g3?? { (-2.08 → -4.31) Blunder. gxf3 was best. } (34. gxf3) 34... Qd7 35. g4?! { (-4.11 → -6.55) Inaccuracy. Kh2 was best. } (35. Kh2 Rf8 36. Rc3 Qe6 37. g4 Rg5 38. Qf1 Rf7 39. h4 Rxg4 40. Rxg4 Qxg4 41. Qh3 Qh5) 35... Qe7? { (-6.55 → -3.24) Mistake. h5 was best. } (35... h5 36. Rg3 hxg4 37. Qg1 Kf7 38. Rb1 Rh8 39. Qh2 Rgh6 40. Rbg1 Qe6 41. Bxg7 Rxh3 42. Qxh3) 36. Qe1?! { (-3.24 → -4.20) Inaccuracy. Rg3 was best. } (36. Rg3) 36... Qh4 37. Rg3? { (-3.92 → -6.71) Mistake. Kh2 was best. } (37. Kh2 Rf8 38. Rb1 Qe7 39. Rc1 Kh7 40. Rxc4 dxc4 41. Qc3 h5 42. Qxc4 hxg4 43. Qxa6 g3+) 37... Rb8?? { (-6.71 → -3.24) Blunder. Rxg4 was best. } (37... Rxg4) 38. Qg1 Nxa5 39. Be5? { (-2.89 → -5.40) Mistake. Ra3 was best. } (39. Ra3) 39... Rb5? { (-5.40 → -2.89) Mistake. Nxb3 was best. } (39... Nxb3) 40. Rb1 Nc4 41. Qc1?? { (-3.12 → -10.48) Blunder. Bc3 was best. } (41. Bc3 Qe7 42. Ra1 Ne5 43. Rxa6 Nd3 44. g5 hxg5 45. Rg4 Kh7 46. h4 Rh6 47. Qg3 Rb7) 41... Nxe5 42. Qc3 Nxg4 43. Rbg1 Nxf2+ 44. Kh2 Rxg3 45. Rxg3 Qe7 46. Kg1 Nd3 47. Kh2 Rxb4 48. h4?! { (-14.12 → Mate in 3) Checkmate is now unavoidable. Qd2 was best. } (48. Qd2 f2) 48... Rb2+ 49. Kh3 Qe6+ 50. Rg4 Nf2+ 51. Kg3 Qxg4+ 52. Kh2 Qg2# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting