Can you solve GCHQ’s notoriously tricky Christmas puzzle? - The Independent
- Can you solve GCHQ’s notoriously tricky Christmas puzzle? The Independent
- GCHQ’s Christmas puzzle contains hidden clues for first time – can you crack the codes? The Telegraph
- GCHQ intelligence agency reveals Christmas puzzle - containing hidden clues for an extra challenge Sky News
- GCHQ Christmas puzzle 2024: do you have what it takes to solve it? Evening Standard