Pick what to drill. Questions you miss come back sooner; questions you nail move up the Leitner boxes (1 → 3 → 7 → 14 days).
Open questions
Answer out loud, reveal the model answer, grade yourself.
Coding tasks
Write the code in the editor, compare with the solution.
Multiple choice
Quick fact drills, checked automatically.
Smart
Due cards first, then unseen, then the rest by weakest box. Important questions lead each group.
Weak spots
Questions you missed or only partially got, weakest first.
Unseen first
Questions you have never answered, then the rest.
Random
Plain shuffle of everything that matches the filters.