Library /CroatianCompetitions

CroatianCompetitions

28 problems here, rated 4.3 to 7.3 on our scale (AIME to National Olympiad, round 2). 28 of them ask for a proof.

Algebra 6Combinatorics 7Geometry 8Number theory 7

#	Topic	Diff	Type	Year
1	Geometry	4.3	proof	—	open
2	Number theory	4.7	proof	—	open
3	Algebra	4.7	proof	—	open
4	Algebra	4.8	proof	—	open
5	Number theory	5.1	proof	—	open
6	Geometry	5.2	proof	—	open
7	Geometry	5.2	proof	—	open
8	Algebra	5.3	proof	—	open
9	Number theory	5.3	proof	—	open
10	Algebra	5.4	proof	—	open
11	Combinatorics	5.4	proof	—	open
12	Number theory	5.5	proof	—	open
13	Combinatorics	5.5	proof	—	open
14	Geometry	5.5	proof	—	open
15	Number theory	5.6	proof	—	open
16	Number theory	5.6	proof	—	open
17	Combinatorics	5.7	proof	—	open
18	Algebra	5.7	proof	—	open
19	Geometry	5.8	proof	—	open
20	Combinatorics	5.8	proof	—	open
21	Algebra	5.9	proof	—	open
22	Combinatorics	6.0	proof	—	open
23	Number theory	6.0	proof	—	open
24	Combinatorics	6.3	proof	—	open
25	Geometry	6.5	proof	—	open
26	Geometry	6.6	proof	—	open
27	Geometry	6.6	proof	—	open
28	Combinatorics	7.3	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.