Well done to everyone for all your efforts with the first Challenge! You can now see how you got on at the Leader Boards, and also print out certificates recording your success using the link http://www.cipher.maths.soton.ac.uk/feedback.php There are slightly fewer teams taking part this year but the number of people taking part is considerably higher, so the average size of a team has grown. It gave us quite a headache trying to format the certificates. There are two versions, one shows your position in the leader board, but that is a bit misleading as you can have the second highest score and be joint 630th, so the other version says (in that case) that you got the second highest score. You can print either or both - you choose. Good luck with Challenge 2. Can you do better than you did this week? Come back and find out at 3.15 this afternoon (Thursday 2nd October) All the best,