The Cipher Challenge Contest
Four degrees of difficulty, from pen & paper to complex mathematical problems
Solved Level 3 challenge Extended Handycipher — Part 5
Solved Level 2 challenge The Josse Challenge – Part 2
Solved Level 2 challenge The Josse Challenge – Part 1
Solved Level 2 challenge The Fialka Challenge – Part 3
Solved Level 2 challenge The Fialka Challenge – Part 2
Solved Level 2 challenge The Fialka Challenge – Part 1
Solved Level 3 challenge Extended Handycipher — Part 4
Solved Level X challenge The Vatican Challenge — Part 4
Four degrees of difficulty, from pen & paper to complex mathematical problems