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Puzzles (3 cohencoins award for each match):

Puzzle kE8Au: 507

 Walker (1464) −10
FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/HaZS2TXF"] [Date "2025.09.17"] [White "Maria"] [Black "Walker"] [Result "1-0"] [UTCDate "2025.09.17"] [UTCTime "20:02:55"] [WhiteElo "1175"] [BlackElo "1464"] [WhiteRatingDiff "+16"] [BlackRatingDiff "-10"] [WhiteTitle "❦"] [BlackTitle "⚡"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C00"] [Opening "French Defense: King's Indian Attack"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 e6 2. d3?! { (0.59 → 0.04) Inaccuracy. d4 was best. } { C00 French Defense: King's Indian Attack } (2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 a6 6. Nf3 c5 7. Be3 Nc6 8. a3 cxd4) 2... d6 3. Nf3 Nd7 4. Bg5?! { (0.72 → 0.12) Inaccuracy. c4 was best. } (4. c4 Ngf6 5. Nc3 c5 6. d4 cxd4 7. Nxd4 b6 8. Be3 Bb7 9. f3 Be7 10. Qd2 Ne5) 4... Ne7 5. Bxe7? { (0.49 → -0.64) Mistake. d4 was best. } (5. d4) 5... Qxe7 6. Qd2 g6 7. Ng5?! { (-0.88 → -1.96) Inaccuracy. Nc3 was best. } (7. Nc3 a6 8. a4 h5 9. d4 Bh6 10. Qd3 c6 11. Be2 e5 12. a5 O-O 13. O-O exd4) 7... Bg7 8. Be2?? { (-1.73 → -7.53) Blunder. Nc3 was best. } (8. Nc3 O-O) 8... O-O?? { (-7.53 → -2.07) Blunder. Bxb2 was best. } (8... Bxb2 9. c3 Bxa1 10. O-O O-O 11. d4 e5 12. Na3 exd4 13. Rxa1 d3 14. Bxd3 Ne5 15. Nb5) 9. Bg4?? { (-2.07 → -8.29) Blunder. Nc3 was best. } (9. Nc3 c6 10. h4 e5 11. Nf3 Nf6 12. Nh2 h6 13. h5 g5 14. O-O d5 15. Rae1 Be6) 9... Bh6?? { (-8.29 → -2.32) Blunder. Bxb2 was best. } (9... Bxb2 10. c3) 10. f4 e5 11. Qa5?? { (-2.12 → -5.84) Blunder. Nc3 was best. } (11. Nc3) 11... b6?! { (-5.84 → -3.86) Inaccuracy. Bxg5 was best. } (11... Bxg5 12. fxg5 Qxg5 13. Bf3 Qc1+ 14. Bd1 Qxb2 15. Qc3 Qxc3+ 16. Nxc3 c6 17. a4 a5 18. h4) 12. Qb5? { (-3.86 → -7.00) Mistake. Qd2 was best. } (12. Qd2 f5) 12... exf4 13. Bxd7 Bxd7 14. Qa6 Qxg5 15. g3?! { (-12.76 → Mate in 5) Checkmate is now unavoidable. Nd2 was best. } (15. Nd2 f3 16. O-O-O Qxg2 17. b3 f2 18. h3 Bxd2+ 19. Kb2 Be1 20. Rdxe1 fxe1=Q 21. Rxe1 Qxh3) 15... fxg3 16. hxg3 Qd2+?? { (Mate in 4 → 6.98) Lost forced checkmate sequence. Qxg3+ was best. } (16... Qxg3+ 17. Ke2 Bg4+ 18. Kf1 Be3 19. Rh2 Qg1#) 17. Nxd2 Rae8 18. Rf1?! { (9.76 → 6.00) Inaccuracy. Rxh6 was best. } (18. Rxh6 Kg7 19. Rh4 Ra8 20. O-O-O h5 21. Re1 Bg4 22. b3 Kg8 23. Kb2 Be6 24. a4 Kg7) 18... d5 19. Qb7 dxe4 20. Qxc7?? { (5.38 → -1.67) Blunder. dxe4 was best. } (20. dxe4 Re7 21. Qxc7 Rc8 22. Qxa7 Rxc2 23. Rf4 b5 24. Rd1 Rxb2 25. Qc5 Bxf4 26. Qxe7 Bxd2+) 20... Bg4?? { (-1.67 → 4.62) Blunder. exd3+ was best. } (20... exd3+) 21. Rd1?? { (4.62 → -5.77) Blunder. dxe4 was best. } (21. dxe4 Rc8) 21... exd3+ 22. Kf2 Re2+ 23. Kg1 Be3+ 24. Kh1 Bh3 25. Rxf7? { (-4.68 → -9.84) Mistake. Rg1 was best. } (25. Rg1 Rc8) 25... Rxf7 26. Qd8+ Kg7 27. Qxd3 Bg2+ 28. Kh2 Bf3+ 29. Kh3 Bg2+ 30. Kg4?? { (-5.61 → Mate in 9) Checkmate is now unavoidable. Kh4 was best. } (30. Kh4 Rff2) 30... h5+ 31. Kh4 Bg5+?? { (Mate in 8 → 0.00) Lost forced checkmate sequence. Kh6 was best. } (31... Kh6 32. Qxg6+ Kxg6 33. Ne4 Bxe4 34. Rd6+ Kh7 35. Rd2 Rxd2 36. Kh3 Bf5+ 37. g4 Bf4 38. gxf5) 32. Kxg5 Rf5+?! { (0.00 → 0.51) Inaccuracy. Re5+ was best. } (32... Re5+ 33. Kh4 Kh6 34. g4 Rf4 35. Kg3 Rxg4+ 36. Kh2 Reg5 37. Qc3 Rh4+ 38. Kg1 Bb7+ 39. Kf2) 33. Kh4 g5+?? { (0.09 → 7.99) Blunder. Rfe5 was best. } (33... Rfe5 34. Rg1 Be4 35. Qxe2 g5+ 36. Kxh5 Bg6+ 37. Kg4 Rxe2 38. Nb3 Rxc2 39. Kxg5 Rxb2 40. Rd1) 34. Kxh5 Bf3+? { (7.76 → Mate in 8) Checkmate is now unavoidable. Ref2 was best. } (34... Ref2 35. g4) 35. Nxf3 g4+ 36. Kxg4 Kf6 37. Qxf5+ Ke7 38. Rd7+ Ke8 39. Rd2?! { (Mate in 1 → 68.68) Lost forced checkmate sequence. Qf7# was best. } (39. Qf7#) 39... Re7?! { (68.68 → Mate in 3) Checkmate is now unavoidable. Rxd2 was best. } (39... Rxd2 40. Nxd2 Ke7 41. Qh7+ Kd6 42. Qxa7 Kc6 43. c4 b5 44. Qa6+ Kd7 45. Qxb5+ Kd6 46. Qb6+) 40. Qg6+ Kf8 41. Rd8+ Re8 42. Qxe8+ Kg7 43. Qe7+ Kg6 44. Ne5+ Kh6 45. Qf7 b5 46. Rh8# { White wins by checkmate. } 1-0
Computer analysisMove timesCrosstableFEN & PGN
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