XIV OBM
8 problems here, rated 4.5 to 5.7 on our scale (AIME to AIME, harder). 8 of them ask for a proof.
| # | Topic | Diff | Type | Year | |
|---|---|---|---|---|---|
| 1 | Algebra | 4.5 | proof | — | open |
| 2 | Number theory | 4.6 | proof | — | open |
| 3 | Geometry | 4.8 | proof | — | open |
| 4 | Number theory | 4.8 | proof | — | open |
| 5 | Combinatorics | 5.0 | proof | — | open |
| 6 | Combinatorics | 5.4 | proof | — | open |
| 7 | Geometry | 5.5 | proof | — | open |
| 8 | Number theory | 5.7 | 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.