Interview mode
A timed, randomised draw across the catalog that feels like a real round. Three shapes to pick from — pick the one that matches the interview you're prepping for.
Classic frontend round
45 minutes · 1 JS warm-up + 1 UI build. The shape most senior rounds take.
2 items · 45 min · draws from a pool of 12
Machine coding — 60 minutes
60 minutes · 2 UI builds back to back. Interview-pace muscle memory.
2 items · 60 min · draws from a pool of 9
DSA for frontend — 30 minutes
30 minutes · 4 short JavaScript idioms. For the algorithmic warm-up.
4 items · 30 min · draws from a pool of 14
Nothing here is paid or counted toward XP — this is pure prep. Your submissions still land in the usual history on each problem page, and solving a problem for the first time earns its normal XP from the backing catalog.