Challenging puzzle for experienced crossword solvers
Cryptic Geniuses of Puzzle History
Moderate difficulty suitable for most players
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Across
- 1. Famous king often associated with riddles and wisdom puzzles
- 3. Key system underpinning many codes and letter puzzles
- 9. A name linked to intricate mechanical puzzle collections
- 10. Popular cube puzzle named after its inventor Erno
Down
- 2. Scientist linked to long economic cycles, also related to logic puzzles
- 4. 19th-century puzzle creator known for 'The Monk's Problem'
- 5. French mathematician with early work on combinatorial puzzles
- 6. Ancient Chinese dissection puzzle made of seven flat shapes
- 7. Hungarian inventor famous for a twisty cube puzzle
- 8. Less-known puzzle master with a background in cryptography
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