Lights Out

How to play Lights Out

Every tile is a light. Tap one to flip it, plus the lights directly above, below, left and right.

The board starts with a solvable pattern. Your job is to make every light dark.

The move counter tracks every tap; undo takes one back without changing the puzzle.

Clear the board in fewer taps to set a new personal best.

Tips for a better run

• Tap around the edges first; a corner changes only three lights.
• If two neighbouring lights are on, look for a single tap that flips both.
• Work backwards from a mostly dark board; the last few lights are easier to reason about.
• Undo is free. Experiment with a tap and take it back if the pattern gets worse.

Good for

A quiet two-minute logic break with no timer, no opponent, and one thumb.

Controls

• Tap a light to flip it and its four neighbours.
• Clear every light; the move count tracks each tap.
• Undo is free; the reset button deals a new solvable board.