The match
You solve a spreadsheet challenge within a time limit. Each question is worth points; bonuses count extra. When you finish (or time runs out), answers are graded automatically.
Rooms and championship
Casual matches happen in rooms you create or join by invite. Official matches are attached to a season's rounds and feed the standings.
Fairness
Challenge content is only revealed when your session starts. The clock is the server's — joining late gives no extra time.