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Puzzles (3 cohencoins award for each match):

Puzzle g2ZSn: 599

🌊 BENJAMIN4 (1639) +6
FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/d0n8uOZE"] [Date "2025.10.25"] [White "Juwan"] [Black "BENJAMIN4"] [Result "0-1"] [UTCDate "2025.10.25"] [UTCTime "17:43:41"] [WhiteElo "1600"] [BlackElo "1639"] [WhiteRatingDiff "-15"] [BlackRatingDiff "+6"] [WhiteTitle "NM"] [BlackTitle "🌊"] [Variant "Standard"] [TimeControl "420+2"] [ECO "A35"] [Opening "English Opening: Symmetrical Variation, Four Knights Variation"] [Termination "Time forfeit"] [Annotator "cohenchessclub.com"] 1. c4 c5 2. Nc3 Nf6 3. Nf3 Nc6 { A35 English Opening: Symmetrical Variation, Four Knights Variation } 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Nxc3 7. bxc3 Bf5?! { (0.34 → 1.34) Inaccuracy. e5 was best. } (7... e5 8. d3 Be7 9. Rb1 Qc7 10. Nd2 O-O 11. Qa4 Rd8 12. Nc4 Be6 13. Bxc6 bxc6 14. O-O) 8. O-O?! { (1.34 → 0.66) Inaccuracy. Qb3 was best. } (8. Qb3 Qd7 9. d4 Be6 10. Qb5 cxd4 11. Nxd4 Rd8 12. Be3 Nxd4 13. Qxd7+ Bxd7 14. cxd4 b6) 8... Qc7? { (0.66 → 2.28) Mistake. e5 was best. } (8... e5 9. d3 Be7 10. Rb1 Rb8 11. Nd2 O-O 12. Nc4 Qd7 13. Qa4 f6 14. f4 Be6 15. fxe5) 9. d4 cxd4?! { (2.68 → 4.16) Inaccuracy. e6 was best. } (9... e6 10. Nh4) 10. Nxd4?! { (4.16 → 2.77) Inaccuracy. Bf4 was best. } (10. Bf4 Qd7 11. Nxd4 e5 12. Nxf5 exf4 13. Qa4 fxg3 14. hxg3 Nd8 15. Qf4 Ne6 16. Qe3 Rd8) 10... Nxd4 11. Qxd4?? { (3.35 → 0.69) Blunder. cxd4 was best. } (11. cxd4) 11... e6?? { (0.69 → 5.32) Blunder. e5 was best. } (11... e5 12. Qa4+) 12. Rd1?? { (5.32 → 2.17) Blunder. Bf4 was best. } (12. Bf4 Qd7) 12... Bc5?? { (2.17 → 6.92) Blunder. e5 was best. } (12... e5 13. Qa4+ Bd7 14. Qb3 Bc5 15. Rb1 Rc8 16. Qxb7 Bb6 17. Be3 Bxe3 18. fxe3 Ba4 19. Bh3) 13. Qa4+?? { (6.92 → 2.98) Blunder. Qxg7 was best. } (13. Qxg7 Rf8 14. Bh6 Rc8 15. Rd2 f6 16. Bxb7 Qxg7 17. Bxg7 Rc7 18. Bxf8 Rxb7 19. Bxc5 Kf7) 13... Kf8?? { (2.98 → 6.75) Blunder. Ke7 was best. } (13... Ke7 14. Ba3) 14. Ba3?? { (6.75 → 1.89) Blunder. g4 was best. } (14. g4) 14... g6?? { (1.89 → 8.97) Blunder. Bxa3 was best. } (14... Bxa3) 15. Bxc5+ Qxc5 16. Rac1?? { (7.11 → 1.91) Blunder. g4 was best. } (16. g4 Rg8) 16... Kg7?? { (1.91 → 5.64) Blunder. e5 was best. } (16... e5 17. Bxb7 Rb8 18. Rd5 Qc7 19. Ba6 Kg7 20. Qa5 Qxa5 21. Rxa5 Rb2 22. c4 Rd8 23. c5) 17. Qd4+?? { (5.64 → 2.18) Blunder. g4 was best. } (17. g4 b5 18. Qd4+ Qxd4 19. cxd4 Bxg4 20. Bxa8 Rxa8 21. f3 Bh3 22. Kf2 a5 23. Kg3 b4) 17... Qxd4 18. cxd4 Rac8?? { (1.95 → 6.01) Blunder. g5 was best. } (18... g5 19. Bxb7 Rad8 20. Rc7 Rd6 21. e4 Bg4 22. Rd2 Rhd8 23. d5 exd5 24. Rxd5 h6 25. Rxd6) 19. Rxc8 Rxc8 20. Bxb7?? { (5.88 → 0.00) Blunder. e4 was best. } (20. e4 Bg4) 20... Rc7?? { (0.00 → 1.59) Blunder. Rc2 was best. } (20... Rc2 21. Bf3 Rxa2 22. e4 Bh3 23. Bg2 Bxg2 24. Kxg2 Kf6 25. h4 h5 26. Kf3 a5 27. Rc1) 21. Bg2 Rc2?? { (1.51 → 5.61) Blunder. Rc3 was best. } (21... Rc3 22. f3) 22. e4 Bg4 23. Ra1?? { (6.22 → 0.00) Blunder. f3 was best. } (23. f3 e5) 23... Kf6?? { (0.00 → 5.96) Blunder. Be2 was best. } (23... Be2 24. d5 exd5 25. exd5 Rd2 26. a3 Bc4 27. Bf3 Bxd5 28. Rd1 Rxd1+ 29. Bxd1 Kf6 30. f4) 24. d5?? { (5.96 → -0.57) Blunder. f3 was best. } (24. f3 Bh5) 24... exd5 25. exd5 Ke5 26. Re1+ Kd6 27. a4?! { (-0.55 → -1.37) Inaccuracy. a3 was best. } (27. a3 Ra2) 27... a5 28. h3?! { (-1.16 → -2.07) Inaccuracy. Rb1 was best. } (28. Rb1 Bd7) 28... Bf5?? { (-2.07 → 0.00) Blunder. Bd7 was best. } (28... Bd7 29. Rb1 Bxa4 30. Rb8 Bd7 31. Rb6+ Ke7 32. Ra6 a4 33. h4 Rc1+ 34. Kh2 Bb5 35. Ra7+) 29. Kh2?? { (0.00 → -2.12) Blunder. Be4 was best. } (29. Be4 Bxe4 30. Rxe4 Ra2 31. Rh4 h5 32. Rd4 Rb2 33. Kf1 f6 34. Ke1 Ra2 35. Kf1) 29... Rxf2 30. Rf1?? { (-2.01 → -6.92) Blunder. g4 was best. } (30. g4 Bd7) 30... Ra2?? { (-6.92 → -2.46) Blunder. Rxf1 was best. } (30... Rxf1 31. Bxf1 Bd7 32. Bc4 Bxa4 33. g4 Bc2 34. Bb5 Kxd5 35. g5 a4 36. Bxa4 Bxa4 37. Kg3) 31. g4?? { (-2.46 → -7.18) Blunder. Kg1 was best. } { White offers draw } (31. Kg1 Rxa4) 31... Be4 32. Rg1 Bxg2 33. Rxg2 Rxg2+ 34. Kxg2 Kxd5 35. Kf3 Kd4 36. h4 Ke5 37. Ke3 f5 38. gxf5 Kxf5 39. Kf3 h5 40. Kg3 Ke4 41. Kf2 Kf4 42. Kg2 g5?? { (-14.35 → -0.32) Blunder. Kg4 was best. } (42... Kg4 43. Kf2 Kxh4 44. Kf3 g5 45. Ke3 g4 46. Kd2 g3 47. Kc3 g2 48. Kc4 Kg3 49. Kd5) 43. hxg5 Kxg5 44. Kh3 Kf4 45. Kh4 Ke4 46. Kxh5 Kd4 47. Kg4 Kc4 48. Kf3 Kb4 49. Ke2 Kxa4 50. Kd1 Kb3 51. Kc1 Ka2 52. Kc2 a4 53. Kc1 a3 54. Kc2 Ka1 55. Kb3 a2 56. Ka3?? { (0.00 → Mate in 11) Checkmate is now unavoidable. Kc2 was best. } (56. Kc2) 56... Kb1 57. Kb3 a1=Q 58. Kb4 Qb2+ 59. Kc4 Kc2 { Black wins on time. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
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