Open to all levels. I'm not going to enter, just observe. :)
Tournament style is double round robin, groups of three (two games each against both your opponent's in your group, one against each at a time). You have five days per [b]move[/b] (not per game) so if you're offline for a few days, no problem. I think you have up to 30 days of vacation time so if you know you're gonna be offline for more than 5 days make sure to check that you're on vacation & you won't lose on time.
I'm posting this on all the rawfood forums I can find, feel free to share it around with other friends & family with an interest in raw food. :)