Art of Problem Solving Community
The maths forum most olympiad students actually grew up on — post a problem you are stuck on and someone will work through it with you.
- Natural Sciences
- Computer Science
- Who can enter
- Anyone worldwide. Free account; the forums are used mostly by school students
- What it costs
- The community, the wiki and the problem archives are free with a free account. AoPS also sells structured online courses, and those are not free. You never need them to use the forums.
- When it closes
- We could not confirm this year's date against the organiser's own page, so we are not showing a countdown for it. Last published: Open all year: post a question any time, free account.
Sending this to someone sends the four facts above, not just a name. They will see who can enter and what it costs before they decide.