Think you're a code-breaker? Try these GCHQ puzzles | ITV News
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Fancy yourself as the next James Bond? UK spy agency GCHQ launches new codebreaker competition - Mirror Online
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GCHQ release puzzle book filled with 'world's hardest brain teasers' for Christmas | The Independent | The Independent
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GCHQ publishes book of spies' brainteasers for children | GCHQ | The Guardian
![The GCHQ Puzzle Book [Review] – Lock Me If You Can](https://lockmeifyoucan.files.wordpress.com/2017/01/img_9312.jpg "The GCHQ Puzzle Book [Review] – Lock Me If You Can")
The GCHQ Puzzle Book [Review] – Lock Me If You Can
GCHQ donates £240,000 to Heads Together from puzzle book... - GCHQ.GOV.UK
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GCHQ: Nobody got crypto Christmas puzzle correct | WIRED UK
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