Registration opens on Monday March 30th. The first part of the competition will be published at 9am on Thursday April 2nd. There is no need to rush to download the early rounds as you will have one or two days in which to submit to achieve full speed marks. Often the website is heavily loaded for the first half an hour or so, and it probably pays to wait out the rush. There will be separate leaderboards for each part of each round, and overall leaderboards for each part which take into account scores from round 4 onwards.