GCHQ’s chief puzzler, known only as Colin, added: “This year’s Christmas challenge features seven puzzles designed to test ...

Fans of codebreaking, maths and brainteasers can now try their hand at the latest cryptic Christmas challenge set by GCHQ, ...

Word puzzles have become one of the most popular puzzle challenges on the web. These seemingly simple puzzles consisting of random letters arranged in a grid have taken the web by storm. The goal of a ...

For James Bond, it would be child's play. But do you have what it takes to crack the code in GCHQ's fiendish Christmas card puzzle? GCHQ's in-house puzzlers set to work on seven fiendish brainteasers ...

GCHQ has unveiled its annual Christmas Challenge for 2025, challenging Britons to try and crack the code. The festive puzzle ...