· Light every square
Tap an action to inspect. Use its switch to turn it on or off. Actions run in order.
D2 is going to be difficult to turn on. Focus on that light.
Your goal is to light every square by choosing which actions apply to the grid.
Use the archive to play earlier puzzles. Your progress and solved puzzles are remembered in this browser.
Choose a day. Your solved puzzles are marked.
Choose a date to play an earlier puzzle.
Your original completion stays saved when you restart.