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Thirteen timed assessments, E to SS, all free

Each grade from E to SS has a timed test of two problems. Qualify through practice, then pass the test to earn the next grade.

The Assessments page: the current grade, the next timed test with its two qualifying routes, and the grade seals below. The Assessments page: the current grade, the next timed test with its two qualifying routes, and the grade seals below.

What changed

Assessments shows your grade and your next timed test. Each test has two problems and a time limit between 60 and 90 minutes.

You unlock a test by solving its qualifying problems on either route: LeetCode, or CSES and AtCoder.

Each grade family has its own material and seal, from graphite through green, blue, violet, orange and gold to deep red SS.

Try it

More from 22 Oct 2026

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