Registration opens on September 21st. The first part of the competition will be published at 3pm on Thursday October 4th. There is no need to rush to download it as you have one or two days in which to submit to achieve full speed marks. Often the website is overloaded for the first half an hour or so, and it probably pays to wait out the rush. The part B prizes will be allocated based on performance in rounds 4-10 so if you miss the first couple of challenges it won’t matter too much.