Library /Bulgarian Mathematical Competitions

Bulgarian Mathematical Competitions

23 problems here, rated 4.5 to 5.6 on our scale (AIME to AIME, harder). 23 of them ask for a proof.

Algebra 10Combinatorics 3Geometry 9Number theory 1

#	Topic	Diff	Type	Year
1	Algebra	4.5	proof	—	open
2	Geometry	4.7	proof	—	open
3	Number theory	4.7	proof	—	open
4	Algebra	4.7	proof	—	open
5	Combinatorics	4.7	proof	—	open
6	Algebra	4.7	proof	—	open
7	Geometry	4.8	proof	—	open
8	Algebra	4.9	proof	—	open
9	Algebra	5.0	proof	—	open
10	Algebra	5.0	proof	—	open
11	Geometry	5.0	proof	—	open
12	Geometry	5.2	proof	—	open
13	Combinatorics	5.2	proof	—	open
14	Geometry	5.3	proof	—	open
15	Combinatorics	5.3	proof	—	open
16	Geometry	5.4	proof	—	open
17	Geometry	5.4	proof	—	open
18	Geometry	5.5	proof	—	open
19	Algebra	5.5	proof	—	open
20	Algebra	5.5	proof	—	open
21	Algebra	5.6	proof	—	open
22	Algebra	5.6	proof	—	open
23	Geometry	5.6	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.