February
22 problems here, rated 3.5 to 4.9 on our scale (AMC 10/12 to AIME). 11 of them ask for a proof.
| # | Topic | Diff | Type | Year | |
|---|---|---|---|---|---|
| 1 | Geometry | 3.5 | answer | 2017 | open |
| 2 | Geometry | 3.6 | answer | 2017 | open |
| 3 | Combinatorics | 3.7 | answer | 2017 | open |
| 4 | Algebra | 3.8 | answer | 2017 | open |
| 5 | Number theory | 4.0 | answer | 2017 | open |
| 6 | Algebra | 4.0 | answer | 2017 | open |
| 7 | Geometry | 4.2 | answer | 2017 | open |
| 8 | Combinatorics | 4.4 | answer | 2017 | open |
| 9 | Combinatorics | 4.5 | answer | 2017 | open |
| 10 | Combinatorics | 4.6 | answer | 2017 | open |
| 11 | Combinatorics | 4.6 | answer | 2017 | open |
| 12 | Geometry | 4.6 | proof | 2017 | open |
| 13 | Algebra | 4.6 | proof | 2017 | open |
| 14 | Geometry | 4.7 | proof | 2017 | open |
| 15 | Combinatorics | 4.7 | proof | 2017 | open |
| 16 | Geometry | 4.8 | proof | 2017 | open |
| 17 | Geometry | 4.8 | proof | 2017 | open |
| 18 | Geometry | 4.8 | proof | 2017 | open |
| 19 | Combinatorics | 4.8 | proof | 2017 | open |
| 20 | Algebra | 4.8 | proof | 2017 | open |
| 21 | Algebra | 4.9 | proof | 2017 | open |
| 22 | Algebra | 4.9 | proof | 2017 | 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.