With the success of the recent cryptography courses, I present you with a mixture of cryptographic puzzle competitions. These puzzles are meant to be a little bit more challenging than the courses, but hints/tips will be supplied.

This event will be graded on speed and accuracy. There will be so called "safe points" where the time taken on the event will be stopped until you are ready to continue. To start the event simply send an email to [Log in to view e-mail addresses] with the subject [Crypto1] to receive your first puzzle.