CROSSWORD CLUE
A difficult question to solve
Possible crossword answers for “A difficult question to solve”, grouped by length, with an explanation and pattern help.
Possible answers
Why these answers fit
PUZZLE can name a problem or game that invites a solution.
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This is an independent reference clue, not a claimed newspaper occurrence. Wording and crossing letters can change the intended answer. Use the solver if your pattern rules out these candidates.