Explore Challenges
The Vatican Challenge — Part 2 Level X
by Beáta Megyesi, published on 2018-02-14
The Secret Archives of the Vatican keep a large collection of ciphertexts from papal correspondence. The keys of these manuscripts have been destroyed, or are kept elsewhere and been forgotten. Can you find out how to decipher the letter from March 14, 1625?
A solution to this challenge was published on 2018-06-19. Solutions can still be submitted and verified, but no points will be awarded for them.