Challenging puzzle for experienced crossword solvers
Enigmatic Codes and Cipher Lore
Moderate difficulty suitable for most players
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Across
- 1. Simple shift cipher named after a Roman ruler
- 3. To shift letters cyclically in a well-known cipher
Down
- 2. Hiding message within an image or sound file
- 4. Grid-based cipher square used in ancient cryptography
- 5. Ancient substitution cipher that reverses the alphabet
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