Tap to flip
A tap flips the tile you touched and its four neighbours. Lit goes dark, dark goes lit.
Turn out the grid.
Tap a tile and the lights around it flip. Sounds simple. Then the board gets bigger, the tiles stop behaving, and you are three moves from perfect with no idea which three.
Play free in your browser
Coming to iPhone
Free, no account, works offline
A new puzzle every day, the same one for everyone.
One rule, then complications
Not every tile plays fair
Bishops flip diagonals. Bombs take a whole 3×3. Walls refuse to move at all, and you plan around them.
Beat the target
Every board shows the fewest moves it can possibly be solved in. Matching it is a perfect. Most people don't, most days.
Four ways to play
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DailyThree puzzles a day, easy to hard, the same board for everyone.
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GauntletBoards that keep growing, sharing one budget of moves. Spare moves carry.
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BlitzSixty seconds. Every board you clear buys you more of them.
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PracticeEndless boards at any difficulty, whenever you want one.
Today's puzzle is waiting.
Play nowNo sign-up, no account, nothing to install. Your streak is kept on your own device.