Competition Rules

1. Standard site terms apply (no messing)
2. Specific rules for each challenge will be published on the day. You don't have to complete it in order to enter.
3. There will be various opportunities to increase your chances of winning e.g. by sharing a code with your friends
4. This competition uses a cookie that keeps today's door open once you've opened it. If you object to this for some reason, please let me know.
5. The winners of doors 1-23 will be announced on the morning of December 24th. The final door will be announced ASAP after the 24th.