PMO Area Stage
15 problems here, rated 3.9 to 7.2 on our scale (AMC 10/12 to National Olympiad, round 2). 11 of them ask for a proof.
| # | Topic | Diff | Type | Year | |
|---|---|---|---|---|---|
| 1 | Combinatorics | 3.9 | answer | — | open |
| 2 | Geometry | 4.5 | proof | — | open |
| 3 | Number theory | 4.5 | proof | — | open |
| 4 | Combinatorics | 4.5 | answer | — | open |
| 5 | Number theory | 4.6 | answer | — | open |
| 6 | Geometry | 4.9 | answer | — | open |
| 7 | Algebra | 4.9 | proof | — | open |
| 8 | Algebra | 6.2 | proof | — | open |
| 9 | Algebra | 6.2 | proof | — | open |
| 10 | Algebra | 6.4 | proof | — | open |
| 11 | Number theory | 6.5 | proof | — | open |
| 12 | Algebra | 6.5 | proof | — | open |
| 13 | Combinatorics | 6.8 | proof | — | open |
| 14 | Algebra | 6.8 | proof | — | open |
| 15 | Algebra | 7.2 | 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.