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Could you be a code breaker?

Updated Thursday, 16 December 2021
Test your problem-solving skills and try to crack our secret messages using clues.

Find out more about The Open University's Mathematics courses and qualifications

Code Break is an interactive Web app consisting of three ciphers: Pigpen, Caesar and simple substitution (solved by frequency analysis). Earn stars for each challenge, and learn about code-breaking through the ages by playing our interactive ‘Could you be a code breaker?’

Front image capture for the game 'CODE BREAK' Click on the image above to start playing CODE BREAK.


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