GCHQ Christmas Challenge
Work your way through previous GCHQ Christmas Challenges and see if you can complete them all.
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2024 Christmas Challenge
For the first time in 2024 we introduced three additional elements hidden within the card for those who want to take on an extra challenge.
In 2024, we took it up a notch, taking puzzle-solvers on a trip around the UK on Santa's Sleigh, with the seven fiendish brainteasers joined by hidden puzzles and codes in the design of the card.
The puzzles include skills such as codebreaking, maths and analysis and test lateral thinking, ingenuity and perseverance. Just like the work that goes on at GCHQ every day to keep the country safe, the Christmas brainteasers will require different approaches and different ways of thinking.
