LIGHTS — A free browser Lights Out puzzle. Pressing a cell flips it and its four neighbours. Every board is built by scrambling a solved one, so every board is solvable.
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LIGHTS
press · flip · clear
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HOW TO PLAY
1Tap a cell. It flips, and so do the cells above, below, left and right.
2Turn every light off to clear the board.
3Boards are made by scrambling a solved board, so none of them are impossible.
4Each board comes with a move budget. Run out and the run ends.