Ukrajina
23 problems here, rated 4.5 to 7.2 on our scale (AIME to National Olympiad, round 2). 23 of them ask for a proof.
| # | Topic | Diff | Type | Year | |
|---|---|---|---|---|---|
| 1 | Algebra | 4.5 | proof | 2008 | open |
| 2 | Number theory | 4.7 | proof | 2008 | open |
| 3 | Algebra | 4.8 | proof | 2008 | open |
| 4 | Algebra | 4.9 | proof | 2008 | open |
| 5 | Geometry | 5.0 | proof | 2008 | open |
| 6 | Geometry | 5.0 | proof | 2008 | open |
| 7 | Algebra | 5.1 | proof | 2008 | open |
| 8 | Geometry | 5.1 | proof | 2008 | open |
| 9 | Algebra | 5.2 | proof | 2008 | open |
| 10 | Algebra | 5.6 | proof | 2008 | open |
| 11 | Combinatorics | 5.6 | proof | 2008 | open |
| 12 | Combinatorics | 5.6 | proof | 2008 | open |
| 13 | Geometry | 5.7 | proof | 2008 | open |
| 14 | Algebra | 6.0 | proof | 2008 | open |
| 15 | Number theory | 6.0 | proof | 2008 | open |
| 16 | Combinatorics | 6.0 | proof | 2008 | open |
| 17 | Algebra | 6.4 | proof | 2008 | open |
| 18 | Number theory | 6.5 | proof | 2008 | open |
| 19 | Algebra | 6.5 | proof | 2008 | open |
| 20 | Geometry | 6.6 | proof | 2008 | open |
| 21 | Combinatorics | 7.0 | proof | 2008 | open |
| 22 | Combinatorics | 7.2 | proof | 2008 | open |
| 23 | Geometry | 7.2 | proof | 2008 | 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.