PROBLEM OF THE WEEK
View our problem of the week and solutions below! Additional practice problems can be found in the books in our store.
IMPORTANT INFO
VIEW OUR 2025-2026
CONTEST ADMINISTRATION DATES BELOW!
| CONTEST | ADMINISTRATION WINDOW | DEADLINE FOR SCORE ENTRY |
|---|---|---|
| 1 | November 10, 2025 - December 1, 2025 | March 31, 2026, 11:59 PM (PT) |
| 2 | December 8, 2025 - December 29, 2025 | March 31, 2026, 11:59 PM (PT) |
| 3 | January 5, 2026 - January 26, 2026 | March 31, 2026, 11:59 PM (PT) |
| 4 | Feburary 2, 2026 - Feburary 23, 2026 | March 31, 2026, 11:59 PM (PT) |
| 5 | March 2, 2026 - March 23, 2026 | March 31, 2026, 11:59 PM (PT) |
DEADLINE FOR SCORE ENTRIES:
MARCH 31, 2026 11:59 PM PT
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