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Technical reference
How Decipher’s ciphers work, from the basic arithmetic to the clues they leave behind.
Also found as documentation · reference · manual
What you’ll find here
For now, these docs cover the Cipher Methods and Challenge Formats used on Decipher. They explain the rules, show small examples, and point out clues you can use while solving. The Workbench, full Challenge walkthroughs, modern cryptography, and programming APIs are separate topics.