HongKong -23 IMO Selection Tests
11 problems here, rated 7.3 to 8.7 on our scale (National olympiad, round 2 to Shortlist). 11 of them ask for a proof.
| # | Topic | Diff | Type | Year | |
|---|---|---|---|---|---|
| 1 | Combinatorics | 7.3 | proof | 2022 | open |
| 2 | Geometry | 7.3 | proof | 2022 | open |
| 3 | Geometry | 7.4 | proof | 2022 | open |
| 4 | Geometry | 7.5 | proof | 2022 | open |
| 5 | Geometry | 7.5 | proof | 2022 | open |
| 6 | Combinatorics | 7.6 | proof | 2022 | open |
| 7 | Algebra | 7.6 | proof | 2022 | open |
| 8 | Geometry | 7.6 | proof | 2022 | open |
| 9 | Number theory | 7.8 | proof | 2022 | open |
| 10 | Combinatorics | 8.1 | proof | 2022 | open |
| 11 | Geometry | 8.7 | proof | 2022 | 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.