Once the challenge goes live on Thursday at 3pm you will be able to submit your solutions. You just need to crack the cipher and paste your decoded message in the answer box at the bottom of the challenge page. Only the team captain can submit. If you are not the captain you will see an image like the one below and you need to ask your captain to login in and submit your solution. If you are the captain and see this image then you need to log in in order to submit. Don’t forget there are two parts to the challenge, and you can submit to both. Make sure you submit the right solution to each part. You would be surprised how many get that wrong.