Can you identify the following? GOCWIKTCEPIPEWNMBCMVFSCFTFLCWPGROCBLCPSM
The GCHQ Puzzle Book Paperback – 20 Oct 2016
Pit your wits against the people who cracked Enigma in the official puzzle book from Britain's secretive intelligence organisation, GCHQ.
'A fiendish work, as frustrating, divisive and annoying as it is deeply fulfilling...'
'Surely the trickiest puzzle book in years. Crack these fiendish problems and Trivial Pursuit should be a doddle'
4.7 out of 5 stars 116 Amazon customer reviews
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