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Code Book Cipher Challenge Solution Page
Gives solution to Singh's Cipher Challenge. Includes the list of authors, the order of solutions, and the steps to create a team. In HTML, PDF and postscript format.

Plus Magazine - Singh's "Code Book" Challenge Cracked
"The £10,000 prize Singh offered for the winner of this "cipher challenge" has now been won by a team of five Swedish researchers." Article explains the challenge, how it was constructed, and what it took to solve it.

The Cipher Challenge
History of a code cracking competition. Challenge details, how it was solved, winners, essays and photo gallery.






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