Library /49th International Mathematical Olympiad Spain

49th International Mathematical Olympiad Spain

14 problems here, rated 7.7 to 9 on our scale (National olympiad, round 2 to IMO level). 14 of them ask for a proof.

Algebra 5Combinatorics 1Geometry 4Number theory 4

#	Topic	Diff	Type	Year
1	Algebra	7.7	proof	—	open
2	Number theory	7.8	proof	—	open
3	Combinatorics	8.5	proof	—	open
4	Geometry	8.5	proof	—	open
5	Number theory	8.6	proof	—	open
6	Geometry	8.6	proof	—	open
7	Algebra	8.7	proof	—	open
8	Number theory	8.7	proof	—	open
9	Geometry	8.8	proof	—	open
10	Algebra	8.8	proof	—	open
11	Geometry	8.8	proof	—	open
12	Number theory	8.9	proof	—	open
13	Algebra	9.0	proof	—	open
14	Algebra	9.0	proof	—	open

These are in difficulty order within this competition, but they are not a course. The track is the ordered route, drawn from across all the sources.