CEMC Euclid
47 problems here, rated 1 to 4.3 on our scale (Junior to AIME). 47 of them ask for a proof. Years covered: 2012–2026.
| # | Topic | Diff | Type | Year | |
|---|---|---|---|---|---|
| 1 | Algebra | 1.0 | proof | 2013 | open |
| 2 | Algebra | 1.0 | proof | 2018 | open |
| 3 | Algebra | 1.0 | proof | 2014 | open |
| 4 | Algebra | 1.0 | proof | 2025 | open |
| 5 | Algebra | 1.0 | proof | 2023 | open |
| 6 | Algebra | 1.0 | proof | 2022 | open |
| 7 | Algebra | 1.0 | proof | 2012 | open |
| 8 | Geometry | 2.1 | proof | 2014 | open |
| 9 | Algebra | 2.1 | proof | 2013 | open |
| 10 | Number theory | 2.1 | proof | 2022 | open |
| 11 | Algebra | 2.1 | proof | 2024 | open |
| 12 | Algebra | 2.1 | proof | 2012 | open |
| 13 | Geometry | 2.1 | proof | 2023 | open |
| 14 | Algebra | 2.1 | proof | 2022 | open |
| 15 | Algebra | 2.1 | proof | 2024 | open |
| 16 | Algebra | 2.1 | proof | 2013 | open |
| 17 | Algebra | 2.1 | proof | 2026 | open |
| 18 | Algebra | 3.1 | proof | 2026 | open |
| 19 | Number theory | 3.1 | proof | 2023 | open |
| 20 | Algebra | 3.1 | proof | 2018 | open |
| 21 | Algebra | 3.1 | proof | 2025 | open |
| 22 | Geometry | 3.1 | proof | 2014 | open |
| 23 | Algebra | 3.1 | proof | 2023 | open |
| 24 | Geometry | 3.1 | proof | 2014 | open |
| 25 | Number theory | 3.1 | proof | 2018 | open |
| 26 | Geometry | 3.1 | proof | 2022 | open |
| 27 | Algebra | 3.2 | proof | 2014 | open |
| 28 | Geometry | 3.2 | proof | 2012 | open |
| 29 | Geometry | 3.2 | proof | 2026 | open |
| 30 | Algebra | 3.2 | proof | 2022 | open |
| 31 | Algebra | 3.2 | proof | 2022 | open |
| 32 | Algebra | 3.2 | proof | 2014 | open |
| 33 | Geometry | 4.1 | proof | 2025 | open |
| 34 | Number theory | 4.1 | proof | 2012 | open |
| 35 | Geometry | 4.2 | proof | 2023 | open |
| 36 | Geometry | 4.2 | proof | 2013 | open |
| 37 | Geometry | 4.2 | proof | 2026 | open |
| 38 | Algebra | 4.2 | proof | 2012 | open |
| 39 | Geometry | 4.2 | proof | 2013 | open |
| 40 | Geometry | 4.2 | proof | 2012 | open |
| 41 | Algebra | 4.2 | proof | 2024 | open |
| 42 | Combinatorics | 4.2 | proof | 2018 | open |
| 43 | Algebra | 4.2 | proof | 2022 | open |
| 44 | Algebra | 4.2 | proof | 2013 | open |
| 45 | Algebra | 4.2 | proof | 2014 | open |
| 46 | Algebra | 4.2 | proof | 2025 | open |
| 47 | Algebra | 4.3 | proof | 2012 | 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.