A challange for those who like a puzzle

[Biggles Bear]

A code breaking riddle that offers the chance to win a genuine World War II Enigma machine remains unsolved more than a year after the challenge was first posed.
<P>
The chance to own a piece of crypto history is on offer through a code-breaking competition associated with the book Can you crack the Enigma code? by author Richard Belfield.......
<P>....Continues in link below.

The original article
<P>
For all the details of the challenge goto Can You Crack The Enigma Code
<p>
I can think of a couple of teams who this could appeal to