How is it possible that there are 31 people who solved this week's 300point problem of geometry and combinatorics 133 days ago. I can only assume the problem was posed already a couple of months ago. The ones who solved the problem back then are excluded from this week's competition? How does that work then? Another question is that after solving all problems I keep on getting bumped down the leaderboard not only by people with more lifetime points, but also by people with less lifetime points. How is this possible?