The 2024 edition was put in a Christmas card formal as usual ... of graphics that make up seven puzzles, which, considered together, will lead people to a UK landmark. The major difference this ...

This year's puzzle challenges the public to decode the names of UK landmarks ... GCHQ said. This year's Christmas card includes extra layers for those who want to challenge themselves further ...

First, draw a post box design on your red card. Make sure you draw a small rectangle ... take part in fan-made puzzles and chat about Blue Peter, come take a look and meet your new BFFs!