Toggle Lights

Tap a light to flip it and its four neighbors. Turn them all off.

Puzzle 1 / 12 0 moves · Min. 2

● means on; ○ means off.

How to play

Tap a cell to flip it and its orthogonal neighbors. Clear the board by turning every light off. Choose 3×3 or 5×5. With a keyboard, use Tab to select a cell and Enter or Space to press it. Each tap counts as one move.

Learn more

Pressing a cell twice cancels out. The order of presses makes no difference either, so each cell only needs a yes-or-no decision.