This puzzle is rated 4000 on chess.com and has a 100% fail rate

Puzzle Rating Adjustment? - Chess Forums

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This puzzle is rated 4000 on chess.com and has a 100% fail rate. Black to play and win. Can you solve it? : r/chess

2400 Puzzle Rating - Chess Forums

Kids creation International Business Game with Folding Board Game Set for Kids and Adults,Game for Time Pass Party & Fun Games Board Game - International Business Game with Folding Board Game Set

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What is an impressive puzzle rating? - Chess Forums

Chess.com highlighted tournaments that need further investigation. : r/chess

Reaching 1700 Puzzles ELO On Chess dot com

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My puzzle rating is 2200 and I thought this puzzle was much tougher than the 1800 score Chess.com gave it. What does r/chess think? Black to move and win. : r/chess

From 1400 to 2000 in Blitz on Chess.com - A 10½ Year Journey

2400-->3400 rated puzzle with a 0% pass rate - Chess Forums

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the hardest chess puzzle, if you can solve, you are.genius!!!! - Chess Forums