This is the full card, which you'll need in order to solve the puzzle. If you love testing your mind, then it’s the perfect time of year - the annual GCHQ Christmas quiz and the answers have been ...

GCHQ, the UK’s intelligence agency, released its annual Christmas card on Wednesday, filled with puzzles and hidden codes. The spy agency's "Chief Puzzler", known as "Colin", said the notoriously ...

GCHQ’s director, Robert Hannigan, included a challenge in his Christmas card this year that was subsequently opened to the public in an attempt to see if anyone could solve it. Well, after receiving ...

Puzzlers rejoice: the GCHQ Christmas quiz has been released. Every year the UK's intelligence, security and cyber agency creates a Christmas Challenge puzzle "aimed at teenagers and young people" that ...

Add Yahoo as a preferred source to see more of our stories on Google. The card was created by both school children and spies (GCHQ) GCHQ, the UK’s intelligence agency, released its annual Christmas ...

If you love testing your mind, then it’s the perfect time of year - the annual GCHQ Christmas quiz and the answers have been released. The UK's intelligence, security and cyber agency creates a ...

Add Yahoo as a preferred source to see more of our stories on Google. This is the full card, which you'll need in order to solve the puzzle. If you love testing your mind, then it’s the perfect time ...