HMMO
21 problems here, rated 3.6 to 4.7 on our scale (AMC 10/12 to AIME). 5 of them ask for a proof.
| # | Topic | Diff | Type | Year | |
|---|---|---|---|---|---|
| 1 | Geometry | 3.6 | answer | 2020 | open |
| 2 | Geometry | 3.6 | answer | 2020 | open |
| 3 | Geometry | 3.7 | answer | — | open |
| 4 | Combinatorics | 3.9 | answer | 2020 | open |
| 5 | Algebra | 3.9 | answer | 2020 | open |
| 6 | Number theory | 4.0 | answer | 2020 | open |
| 7 | Combinatorics | 4.0 | answer | 2020 | open |
| 8 | Geometry | 4.2 | answer | 2020 | open |
| 9 | Combinatorics | 4.2 | answer | 2020 | open |
| 10 | Geometry | 4.3 | answer | 2020 | open |
| 11 | Geometry | 4.3 | answer | 2020 | open |
| 12 | Combinatorics | 4.5 | answer | 2020 | open |
| 13 | Combinatorics | 4.5 | answer | 2020 | open |
| 14 | Number theory | 4.5 | proof | 2020 | open |
| 15 | Combinatorics | 4.6 | proof | 2020 | open |
| 16 | Combinatorics | 4.6 | answer | 2020 | open |
| 17 | Combinatorics | 4.6 | answer | 2020 | open |
| 18 | Geometry | 4.7 | proof | — | open |
| 19 | Geometry | 4.7 | proof | 2020 | open |
| 20 | Geometry | 4.7 | proof | — | open |
| 21 | Number theory | 4.7 | answer | 2020 | 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.