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'Stage 5 Cipher Challenge' printed from http://nrich.maths.org/

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The cipher challenge has now been completed.

The star solvers of the process were

Patrick from Woodbridge School in England
Joseph, from Hong Kong

Some of the hardest ciphers were also solved by an Anonymous solver from Somewhere in the US (perhaps you know this enigmatic person?)

Very well done to the many solvers who cracked one or two parts. This was a very difficult challenge, so many congratulations.

The solutions to each code are given in the individual problems themselves, or you can follow these links:

 

A Roman Conversion? solution

A Fine Thing? solution

Vital? Solution

Semicircle Solution

Up a Semitone? Solution

Jluuis or Even Asutguus? Solution

Ip? Solution