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Problems and solutions
- See the Putnam archive for complete problem sets and solutions
- “Easy” problems: Miguel A. Lerma (one, two), Ravi Fernando, etc. — in general, A1 and B1 problems are easier than others.
- Problem-solving seminars: Po-Shen Loh at CMU, Ravi Fernando at Berkeley, Patrick Devlin at Yale, Dave Rusin at U of Texas (2021, 2020, …), Andrew Török at U of Houston, etc.
Legend:
- A1–A6, B1–B6 are problems: exam consists of two parts (A, B), with 6 problems each
- 📝 — I have written up a complete solution
- ✍️ — I am working on this and/or have a partial solution
- empty cell — I don’t have a solution to this problem yet
Click on the year to see the problem set and my solutions (depending on the icons present in that row):
| A1 | A2 | A3 | A4 | A5 | A6 | B1 | B2 | A3 | B4 | B5 | B6 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | 📝 | |||||||||||
| ⋮ | ||||||||||||
| 2009 | 📝 |