GCHQ sends out brainteaser Christmas card – can you solve the festive puzzles? | UK News Tags:United Kingdom 4 comments https://www.gchq.gov.uk/files/GCHQChristmasChallenge.pdf >designed for those in secondary school education Apparently I need to go back to school [deleted] For anyone stuck on question 7, GCHQ has a [very useful tool](https://gchq.github.io/CyberChef/#recipe=Substitute('ABCDEFGHIJKLMNOPQRSTUVWXYZ‘,’XYZABCDEFGHIJKLMNOPQRSTUVW’)). Leave a ReplyYou must be logged in to post a comment.
For anyone stuck on question 7, GCHQ has a [very useful tool](https://gchq.github.io/CyberChef/#recipe=Substitute('ABCDEFGHIJKLMNOPQRSTUVWXYZ‘,’XYZABCDEFGHIJKLMNOPQRSTUVW’)).
4 comments
https://www.gchq.gov.uk/files/GCHQChristmasChallenge.pdf
>designed for those in secondary school education
Apparently I need to go back to school
[deleted]
For anyone stuck on question 7, GCHQ has a [very useful tool](https://gchq.github.io/CyberChef/#recipe=Substitute('ABCDEFGHIJKLMNOPQRSTUVWXYZ‘,’XYZABCDEFGHIJKLMNOPQRSTUVW’)).