The goal
Turn off every light. Tapping a cell toggles it and its horizontal and vertical neighbors.
One tap changes everything.
Getting your game ready…
Turn off every light. Tapping a cell toggles it and its horizontal and vertical neighbors.
Tap a cell, or select it using Tab and Enter. Diagonals do not change. Each board is generated from valid moves.
Tapping the same cell twice cancels its effect. Try clearing upper rows in order, using the row below to turn off the lights above.
No. Play for free. Games and statistics are stored only in your browser.
In this browser’s local storage. It is not sent to a server or synced between devices. Clearing browser data or using private browsing may remove it.
This collection is free. If you would like to support the project and future games, you can buy me a coffee.