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Puzzles (3 cohencoins award for each match):

Puzzle IlgYa: 558

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/WNpFWXbd"] [Date "2026.02.10"] [White "Aden1"] [Black "Tavin"] [Result "1-0"] [UTCDate "2026.02.10"] [UTCTime "21:45:13"] [WhiteElo "1034"] [BlackElo "1067"] [WhiteRatingDiff "+28"] [BlackRatingDiff "-55"] [Variant "Standard"] [TimeControl "420+2"] [ECO "B00"] [Opening "Goldsmith Defense"] [Termination "Time forfeit"] [Annotator "cohenchessclub.com"] 1. e4 h5? { (0.41 → 1.68) Mistake. c5 was best. } { B00 Goldsmith Defense } (1... c5 2. Nf3) 2. Nf3 Rh6? { (1.38 → 2.78) Mistake. c5 was best. } (2... c5 3. c3) 3. Nc3 e5?? { (2.34 → 5.10) Blunder. c5 was best. } (3... c5) 4. Qe2?? { (5.10 → 1.55) Blunder. Nxe5 was best. } (4. Nxe5) 4... f5?? { (1.55 → 7.85) Blunder. Nc6 was best. } (4... Nc6 5. d4 Nxd4 6. Nxd4 exd4 7. Bxh6 Nxh6 8. Nb5 Bb4+ 9. c3 dxc3 10. Nxc3 c6 11. Qxh5) 5. d3 fxe4 6. dxe4?! { (6.09 → 4.32) Inaccuracy. Qxe4 was best. } (6. Qxe4 d5 7. Nxd5 Nc6 8. Bxh6 Nxh6 9. Ne3 Qe7 10. c3 Be6 11. Nxe5 Nxe5 12. Qxe5 Ng4) 6... g5? { (4.32 → 9.19) Mistake. d6 was best. } (6... d6) 7. Nxe5?! { (9.19 → 6.15) Inaccuracy. Bxg5 was best. } (7. Bxg5) 7... h4 8. Nf3 g4 9. Nxh4?? { (6.77 → 1.87) Blunder. Nd4 was best. } (9. Nd4 Nc6) 9... Rxh4 10. f3?? { (2.12 → -0.01) Blunder. e5 was best. } (10. e5 Nc6 11. Qe4 Bg7 12. Bc4 d5 13. exd6+ Kf8 14. Qd5 Bxc3+ 15. bxc3 Qe8+ 16. Be3 Nf6) 10... gxf3?? { (-0.01 → 2.50) Blunder. d6 was best. } (10... d6 11. Qc4) 11. gxf3?? { (2.50 → 0.19) Blunder. Qxf3 was best. } (11. Qxf3) 11... Rh5?? { (0.19 → 1.93) Blunder. d6 was best. } (11... d6) 12. Rg1?? { (1.93 → -0.59) Blunder. h4 was best. } (12. h4 d6) 12... Qg5?? { (-0.59 → 11.34) Blunder. Qh4+ was best. } (12... Qh4+) 13. Rxg5 Rxg5 14. Qe3 Rg1 15. Qxg1 d6 16. Qxg8 Bh3?! { (21.50 → Mate in 4) Checkmate is now unavoidable. Bf5 was best. } (16... Bf5 17. Nd5) 17. Qh8?! { (Mate in 4 → 15.38) Lost forced checkmate sequence. Bxh3 was best. } (17. Bxh3 Nc6 18. Bh6 Ke7 19. Qe6+ Kd8 20. Qd7#) 17... Bxf1 18. Kxf1 Na6 19. a4 O-O-O 20. Ra3 d5 21. Be3 Bxa3 22. bxa3?? { (9.67 → -0.09) Blunder. Qh3+ was best. } (22. Qh3+) 22... Rxh8 23. Bxa7?? { (-0.43 → -3.08) Blunder. Nxd5 was best. } (23. Nxd5 Rxh2) 23... Rxh2? { (-3.08 → -1.54) Mistake. b6 was best. } (23... b6 24. a5) 24. Kg1?! { (-1.54 → -2.42) Inaccuracy. Nxd5 was best. } (24. Nxd5 Rxc2 25. Be3 Kd7 26. a5 Ke6 27. Bf4 c6 28. Nb4 Nxb4 29. axb4 Rb2 30. Be3 Ke5) 24... Rxc2 25. Nxd5 Kd7 26. f4 c6?! { (-2.33 → -1.74) Inaccuracy. Nc5 was best. } (26... Nc5 27. Bxc5 Rxc5 28. Kf2 Rc4 29. Ke3 Rxa4 30. f5 Rxa3+ 31. Kf4 c6 32. Nf6+ Ke7 33. e5) 27. Nb6+?! { (-1.74 → -2.92) Inaccuracy. Ne3 was best. } (27. Ne3 Rc3) 27... Kd6 28. f5 Rc1+?! { (-3.36 → -2.25) Inaccuracy. Rc3 was best. } (28... Rc3 29. a5 Ke5 30. Nd7+ Kxe4 31. f6 Rg3+ 32. Kh2 Rf3 33. Kg2 Rf5 34. Kh3 Kd5 35. Kg4) 29. Kg2 Rc3 30. f6? { (-2.67 → -4.34) Mistake. a5 was best. } (30. a5 Ke5) 30... Rxa3?? { (-4.34 → 5.34) Blunder. Ke6 was best. } (30... Ke6) 31. f7?? { (5.34 → -3.20) Blunder. Nc4+ was best. } (31. Nc4+ Ke6 32. Nxa3 Kxf6 33. Kf3 Ke7 34. a5 c5 35. Nc4 Ke6 36. Bb6 Nb8 37. Bxc5 Kd7) 31... Ke7 32. Bb8? { (-3.41 → -6.15) Mistake. Nc4 was best. } (32. Nc4 Rxa4 33. Nd6 Nc7 34. Bc5 Ne6 35. Nxb7+ Kxf7 36. Kf3 Ng5+ 37. Ke3 Rxe4+ 38. Kd3 Ke6) 32... Kxf7 33. Bd6 Ke6?? { (-5.76 → 5.41) Blunder. Rc3 was best. } (33... Rc3 34. e5) 34. Bxa3 Ke5 35. Kf3 Nc5?! { (5.16 → 56.82) Inaccuracy. c5 was best. } (35... c5 36. Nc8) 36. Bxc5 Ke6 37. Kf4 Kf6 38. e5+ Ke6 39. a5 Kf7 40. Kf5 Kg7 41. e6 Kg8 42. Kf6 Kh7 43. e7 Kg8 44. Ke6 Kg7 45. e8=Q { Black left the game. } 1-0
Computer analysisMove timesCrosstableFEN & PGN
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