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.

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.