Lights Out
Switch every light off.
ROUND0 / 3
Complete 3 rounds. Mistakes count, then you continue.
ACCURACY—
BEST0
TIME LEFT—
READY?
Switch every light off. Tapping a square flips that light and its up, down, left and right neighbors. Dark squares can be tapped too.
HOW TO PLAY
Switch every light off. Tapping a square flips that light and its up, down, left and right neighbors. Dark squares can be tapped too.
Standard rankings compare accuracy first, then response time. Endless rankings compare your streak.
Tap or use Tab and Enter. Arrow keys navigate the grid; number keys choose a number or color. Reset and undo do not restart the timer.
A game score describes this challenge on your device. Compare sessions with the same setup.