Cipher Challenge
Lovell's Cipher to John Adams
James Lovell sent this numeric passage to John Adams on 2 January 1781 amid the Continental Congress's military and financial difficulties. The 41 groups are isolated from the letter's clear prose. Federal historical edition
Source & status
- Origin
- Historical cipher
- Solution
- Established
Ciphertext
27 11 12 21 16 4 14 3 21 19 18 18 26 23 19 3 7 24 13 19 2 26 1 11 8 2 15 10 11 23 25 4 13 10 25 26 3 6 19 12 17