Hard-to-solve puzzle
Let's find possible answers to "Hard-to-solve puzzle" crossword clue. First of all, we will look for a few extra hints for this entry: Hard-to-solve puzzle. Finally, we will solve this crossword puzzle clue and get the correct word. We have 2 possible solutions for this clue in our database.
Related clues
- German encrypting machine
- Word for a mysterious or puzzling person or thing that is also the code deciphered at Bletchley Park during the Second World War
- Tricky problem
- Mysterious person
- German electro-encryption machine deciphered by Alan Turing and other codebreakers at Bletchley Park during the Second World War
Possible answers
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