GCHQ releases puzzle to appeal to potential new recruits - are you smart enough to solve it? - Sky News
- GCHQ releases puzzle to appeal to potential new recruits - are you smart enough to solve it? Sky News
- Did you crack the GCHQ code? Spy agency reveals puzzle answers The Telegraph
- Did you have the spycraft to solve GCHQ's new puzzle? The Times
- GCHQ quiz tests your ability to become a spy: do you have what it takes? Evening Standard