GCHQ’s chief puzzler, known only as Colin, added: “This year’s Christmas challenge features seven puzzles designed to test everything from codebreaking and mathematical analysis to lateral thinking ...

Fans of codebreaking, maths and brainteasers can now try their hand at the latest cryptic Christmas challenge set by GCHQ, the UK's intelligence agency. GCHQ released its annual Christmas card on ...

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 ...

Have you got what it takes to crack GCHQ’s annual Christmas card puzzle? The intelligence organisation’s in-house puzzlers set to work on seven brainteasers for aspiring sleuths to work out. This year ...

There’s a Call of Duty Black Ops 6 safe code puzzle hidden away in the safehouse basement, which is good to know, because it’s full of cash. Cracking this COD safe code is a great way to obtain a ...