Archive

Here we're keeping all of past year's problems and solutions, as well as contest results. Some years might be missing a round since we haven't done every round every year. In each year, the more difficult division is listed second.

Year Division Algebra Geometry Counting Number Theory Sprint Team Fun Guts
2024 Brahmagupta Problems
Solutions
Problems
Solutions
Problems
Solutions
Problems
Solutions
- Problems
Solutions
Problems
Solutions
Godel Problems
Solutions
Problems
Solutions
Problems
Solutions
Problems
Solutions
- Problems
Solutions
Problems
Solutions
2023 Bernoulli Problems
Solutions
Problems
Solutions
Problems
Solutions
Problems
Solutions
- Problems
Solutions
Problems
Solutions
Germain Problems
Solutions
Problems
Solutions
Problems
Solutions
Problems
Solutions
- Problems
Solutions
Problems
Solutions
2022 Dedekind Problems
Solutions
Problems
Solutions
Problems
Solutions
Problems
Solutions
- Problems
Solutions
Instructions
Problems
Solutions
Problems
Solutions
Zermelo Problems
Solutions
Problems
Solutions
Problems
Solutions
Problems
Solutions
- Problems
Solutions
Problems
Solutions
2020 Online - - - - - Problems
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2019 Descartes Problems
Solutions
Problems
Solutions
Problems
Solutions
Problems
Solutions
- Problems
Solutions
Introduction
Problems
Problems
Solutions
Leibniz Problems
Solutions
Problems
Solutions
Problems
Solutions
Problems
Solutions
- Problems
Solutions
Problems
Solutions
2018 Cantor Problems
Solutions
Problems
Solutions
Problems
Solutions
Problems
Solutions
- Problems
Solutions
- Problems
Solutions
Gauss Problems
Solutions
Problems
Solutions
Problems
Solutions
Problems
Solutions
- Problems
Solutions
Problems
Solutions
2017 Ramanujan Problems
Solutions
Problems
Solutions
Problems
Solutions
Problems
Solutions
- Problems
Solutions
- Problems
Solutions
Pascal Problems
Solutions
Problems
Solutions
Problems
Solutions
Problems
Solutions
- Problems
Solutions
Problems
Solutions
2016 Euclid Problems
Answers
Problems
Answers
Problems
Answers
Problems
Answers
Problems
Answers
Problems
Answers
- Problems
Answers
Lobachevsky Problems
Answers
Problems
Answers
Problems
Answers
Problems
Answers
Problems
Answers
Problems
Answers
2015 Fermat Problems Problems Problems Problems Problems Problems - Problems
Euler Problems Problems Problems Problems Problems Problems