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Puzzles (3 cohencoins award for each match):

Puzzle 7snVm: 423

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/5pCDaCSi"] [Date "2025.11.11"] [White "Garyd"] [Black "Ezra1"] [Result "0-1"] [UTCDate "2025.11.11"] [UTCTime "21:16:05"] [WhiteElo "1483"] [BlackElo "1513"] [WhiteRatingDiff "-15"] [BlackRatingDiff "+8"] [WhiteTitle "GM🙌"] [BlackTitle "😼"] [Variant "Standard"] [TimeControl "420+2"] [ECO "B06"] [Opening "Modern Defense: Two Knights Variation"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Nc3 { B06 Modern Defense: Two Knights Variation } a6 5. Be3 b5 6. Bd3 Bb7 7. a3?! { (0.90 → -0.03) Inaccuracy. h4 was best. } (7. h4 b4 8. Ne2 Nf6 9. e5 dxe5 10. dxe5 Ng4 11. e6 fxe6 12. Ng5 Nxe3 13. fxe3 Qd6) 7... Nd7 8. O-O e5? { (-0.13 → 1.02) Mistake. Ngf6 was best. } (8... Ngf6 9. Re1) 9. d5 Ngf6 10. b4?! { (1.03 → 0.21) Inaccuracy. a4 was best. } (10. a4) 10... Ng4? { (0.21 → 1.74) Mistake. c6 was best. } (10... c6) 11. Qd2? { (1.74 → 0.45) Mistake. Bg5 was best. } (11. Bg5 Ngf6) 11... O-O 12. h3? { (0.86 → -0.16) Mistake. a4 was best. } (12. a4 Nxe3) 12... Nxe3 13. Qxe3 Nb6? { (-0.13 → 1.21) Mistake. c5 was best. } (13... c5 14. dxc6 Bxc6 15. a4 bxa4 16. Nd2 Rb8 17. Rfb1 d5 18. Nxa4 d4 19. Qe1 Qe7 20. c3) 14. Rab1?? { (1.21 → -1.45) Blunder. a4 was best. } (14. a4 bxa4 15. Nxa4 Nd7 16. c4 c6 17. dxc6 Bxc6 18. Rfb1 Qc7 19. Nd2 Rfb8 20. b5 Bb7) 14... Qf6?? { (-1.45 → 0.33) Blunder. Rc8 was best. } (14... Rc8 15. Qe1) 15. Qg5?? { (0.33 → -2.26) Blunder. a4 was best. } (15. a4) 15... Qxg5 16. Nxg5 h6 17. Nf3 Rfe8?? { (-2.20 → -0.52) Blunder. c6 was best. } (17... c6 18. dxc6 Bxc6 19. Rfe1 Rfc8 20. Nd1 h5 21. g4 f5 22. gxh5 gxh5 23. Nh4 fxe4 24. Bxe4) 18. Rfe1? { (-0.52 → -2.10) Mistake. Nd2 was best. } (18. Nd2 c6 19. a4 bxa4 20. Nc4 Nxc4 21. Bxc4 Rac8 22. Ra1 cxd5 23. Bxd5 Rxc3 24. Bxb7 Rb8) 18... c6 19. dxc6 Bxc6 20. Kh2 Rec8 21. Rb2?! { (-2.34 → -3.60) Inaccuracy. Nd1 was best. } (21. Nd1 Rc7) 21... Bxe4?? { (-3.60 → -0.29) Blunder. f5 was best. } (21... f5 22. Nh4 Bf6 23. g3 Be8 24. Nd1 Bxh4 25. gxh4 f4 26. c3 Rc6 27. Rd2 Kf8 28. h5) 22. Bxe4?! { (-0.29 → -0.97) Inaccuracy. Nxe4 was best. } (22. Nxe4) 22... Rab8?? { (-0.97 → 1.77) Blunder. Rxc3 was best. } (22... Rxc3 23. Bxa8) 23. Re3?? { (1.77 → 0.16) Blunder. Rb3 was best. } (23. Rb3 f5 24. Bd5+ Nxd5 25. Nxd5 Rxc2 26. g4 e4 27. Nh4 Bd4 28. Nxg6 Bxf2 29. Rf1 e3) 23... Nc4? { (0.16 → 1.57) Mistake. f5 was best. } (23... f5) 24. Rb3 Nxe3 25. fxe3 f5 26. Bd5+ Kh7 27. g4? { (1.80 → 0.37) Mistake. e4 was best. } (27. e4 Rc7 28. Nd1 Re8 29. exf5 gxf5 30. Nh4 e4 31. Nxf5 Rxc2 32. Nxg7 Kxg7 33. Rg3+ Kh8) 27... e4 28. Nd4 Bxd4 29. exd4 Re8?? { (0.32 → 2.08) Blunder. Rc7 was best. } (29... Rc7 30. gxf5 gxf5 31. Kg3 Rbc8 32. Nd1 Rxc2 33. Be6 Rf8 34. Kf4 Rd2 35. Bxf5+ Kh8 36. Ne3) 30. Bc6? { (2.08 → 0.81) Mistake. Kg3 was best. } (30. Kg3 Re7) 30... Re6?? { (0.81 → 3.31) Blunder. Rec8 was best. } (30... Rec8 31. Bd5) 31. Bd5?? { (3.31 → 0.76) Blunder. gxf5 was best. } (31. gxf5) 31... Re7 32. Kg3?! { (0.94 → 0.00) Inaccuracy. gxf5 was best. } (32. gxf5 gxf5 33. Ne2 Rc8 34. c4 bxc4 35. Rc3 h5 36. Kg3 Rg7+ 37. Kf2 Kh6 38. Rxc4 Rgc7) 32... e3?! { (0.00 → 0.85) Inaccuracy. Rc8 was best. } (32... Rc8) 33. Kf3?? { (0.85 → -2.57) Blunder. Bf3 was best. } (33. Bf3 fxg4) 33... Rbe8?? { (-2.57 → 1.87) Blunder. e2 was best. } (33... e2 34. Nxe2 fxg4+ 35. hxg4 Rf8+ 36. Nf4 g5 37. Be4+ Kg7 38. Bf5 gxf4 39. Kxf4 d5 40. Kg3) 34. Bc6?? { (1.87 → -5.81) Blunder. Ke2 was best. } (34. Ke2 Rf8) 34... Rf8?? { (-5.81 → -0.18) Blunder. Rc8 was best. } (34... Rc8 35. Be4) 35. Bd5?? { (-0.18 → -6.08) Blunder. Ke2 was best. } (35. Ke2 fxg4 36. hxg4 Rf2+ 37. Ke1 Rxc2 38. Bf3 Rf7 39. Be4 Rc1+ 40. Ke2 Rg1 41. Bd5 Rff1) 35... fxg4+ 36. Kxg4 e2 37. Nxe2 Rxe2 38. Rb2 h5+ 39. Kg3 h4+ 40. Kxh4 Rf1?! { (-6.92 → -5.22) Inaccuracy. Rf4+ was best. } (40... Rf4+) 41. Kg5?! { (-5.22 → -8.53) Inaccuracy. Kg4 was best. } (41. Kg4 Kg7) 41... Rf5+ 42. Kg4 Rxd5 43. Kf4 Rf5+ 44. Kg3 Ref2 45. Kg4? { (-8.53 → Mate in 2) Checkmate is now unavoidable. Rb3 was best. } (45. Rb3 Rf1 46. h4 Rg1+ 47. Kh3 Ra1 48. Re3 Rf4 49. Kg3 Rxd4 50. Rc3 Kh6 51. a4 Rxa4) 45... Kh6?! { (Mate in 2 → -57.14) Lost forced checkmate sequence. Rg2+ was best. } (45... Rg2+ 46. Kh4 Rf4#) 46. Kg3 R2f3+ 47. Kg2 Rf1 48. Kg3 Rg5+ 49. Kh2 Rf2+ 50. Kh1 Rf3 51. c3 Rxh3+ 52. Rh2 Rxh2+ 53. Kxh2 Rf5 54. Kg3 g5 55. Kg4 Kg6 56. Kg3 Rf4 57. Kg2 Kh5 58. Kg3 Rg4+ 59. Kh3 Rg1 60. Kh2 Ra1 61. Kh3 Rxa3 62. Kg3 Rxc3+ 63. Kg2 Rc4 64. Kg3 Rxb4 65. Kh3 a5 66. Kg3 a4 67. Kf3 a3 68. Ke4 a2 69. Kd5 a1=Q 70. Kxd6 Qxd4+ 71. Kc6 Qc4+ { White resigns. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting