Round 3

10 problems here, rated 4.5 to 7.5 on our scale (AIME to National Olympiad, round 2). 10 of them ask for a proof.

Algebra 2Combinatorics 2Geometry 4Number theory 2

#	Topic	Diff	Type	Year
1	Geometry	4.5	proof	—	open
2	Geometry	4.6	proof	—	open
3	Algebra	4.7	proof	—	open
4	Number theory	4.8	proof	—	open
5	Geometry	6.3	proof	—	open
6	Algebra	6.5	proof	—	open
7	Geometry	6.7	proof	—	open
8	Number theory	6.8	proof	—	open
9	Combinatorics	6.9	proof	—	open
10	Combinatorics	7.5	proof	—	open

These are sorted by difficulty within the competition, but they aren't a course. The track is the route through, drawn from all the sources at once.