Well done to everyone who took part in what is undoubtedly the most successful National Cipher Challenge we have ever run.
8255 of you took part in a total of 3976 teams. You identified as
with 355 of you preferring not to say. We had 2348 submissions to challenge 1A, but, surprisingly, 5,810 submissions to 8B which suggests that a number of you were trying a known text/brute force attack on the solution. Good effort!
We are writing to the prize candidates to ask them to tell us how they cracked the final challenge (this is a standard part of the process) and hopefully they will let us publish their solutions so you can all learn from them and get set up for glory next year!
We had quite a few of you find the hidden message in the final decrypt (YOU HAVE BEEN BETRAYED BY MIDAS THIS IS A FORGERY) and some of you have written to ask where they can find Tacitus original last chapter. It is tempting to say that Jodie has it, but if enough of you ask then we will post it here!
We are still making plans for Bletchley, and will publish details with the information about the winners here on the website in the next two weeks. Do keep checking back.
Before I go we want to thank all the teachers who have supported and encouraged you through the Challenge, without them the competition would not be the success it is. The Elves and I would also like to wish you all a very successful year, and look forward to welcoming many of you back for the Challenge in the Autumn.
Thanks for your enthusiasm and support, and congratulations once more on all your efforts. You can consider yourselves true heirs of Alan Turing and Ada Lovelace, and it is good to think that the future is in the very capable hands of such brilliant young mathematicians!