Are you ready to take on serious cipher decoding challenge? This game is a collection of commonly known ciphers from classic literature and other books. To solve some of these problems you might simply need to refresh some memories from books of Conan Doyle or look up some classic works on cipher. You can try to decode it for yourself without any help or clues. Isn't that sounds like fun? Ultimate cipher challenge! The background picture on some of the problems provides the clue to what kind of cipher is used.Try and see if you can stand up for a challenge, and the most of all use logic and your brain. That is the whole point of this game.