Stefan's Solitaire Cypher Page

and a C programme to encipher and decipher it

I recently read Neal Stephenson's book Cryptonomicon which features a cipher called solitaire. After trying it out and writing a C programme to encipher and decipher text using the solitaire cipher, and at the request of my four children, I prepared a series of solitaire clues for them on Easter Sunday 2013, leading them to their hidden basket of eggs. They each spent a good portion of that day with a deck of cards successively decoding each clue and searching for the next before ultimately reaching their well deserved reward.

Here are the instructions I handed to each of them them. (Microsoft Word format).

Here are the instructions I handed to each of them them. (Converted to HTML format).

Here are the instructions I handed to each of them them. (Converted to pdf format).

Have fun!

Stefan Keller-Tuberg. June 2013.



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