HOW TO PLAY
How to play Lights Out
Plan your moves on a 5×5 light grid. Clicking a square toggles it and its orthogonal neighbours; switch off every light to solve the puzzle.
Controls
- Click or tap a light to toggle its cross-shaped neighbours
- R: reset the puzzle; F: toggle fullscreen
Tips
- Each move changes the selected light and its up, down, left, and right neighbours.
- Work down from the top row to reason about the next move.