One bug. One clock.

LintRush is a 20-second code-reading race. You get a short snippet from a real kind of mistake: a missing await, a bad boundary, a null, a query built the wrong way.

Tap the line. The first clean finish is the one that hits today's board. Faster finishes score higher. The clock that counts is the server clock, so a refreshed tab does not buy a new start.

Miss it, and you still see the explanation. Practice as many other bugs as your plan allows. Share the result and a friend can try to beat the score without seeing the answer first.

Come back tomorrow. The streak only moves once per day in your timezone.