PLACEMENT
Where should you start?
15 problems, about seven minutes. You read a problem and name the pattern it needs. No code, no timer per question.
At the end you get the correct pattern for every question, which groups came apart, and the step to pick the course up at.
What this is not
It does not mark any step as done and it is not an exam. It tells you which groups to read and which ones you can skim, and you decide from there.