Solve 5 puzzles as fast as you can — the same five boards for every player today.

It's a race against the clock: the faster you finish, the higher your score. A wrong guess briefly locks the board, and resetting a puzzle costs you points.

One race per day, and the clock never pauses. Leave and you can pick up where you left off — but the timer keeps running, so don't stop mid-race.

Your best recent races set your global Rating — every race you play moves it.