UNSOLVED PROBLEMS

in Number Theory, Logic, and Cryptography

The Dorabella Cipher

The Dorabella cipher is contained in a note written by the English composer Sir Edward Elgar to a young lady companion, Dora Penny, in 1897.  The cipher remains unsolved to this day.

The problem is to solve the cipher.

For further information, please see:

[1] http://en.wikipedia.org/wiki/Dorabella_Cipher

[2] http://www.geocities.com/Vienna/4056/cipher.html

[3] http://homepage.mac.com/turder/iblog/B561081935/C663716685/E538429514/index.html

* There are currently 2 proposed solution on the solutions page.

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       Last modified: August 01, 2007                        v 016