Lights Out
Turn off every light by toggling a cell and its neighbors. Plan your sequence to clear the board!
Category
Puzzle
Rating
Price
100% Free
How to Play
Lights Out is a grid of lights. Pressing any light toggles it and its four orthogonal neighbours, and your goal is to switch every light off. Every puzzle generated here is guaranteed solvable. The reliable method is to work from the top row downward: once a row is committed, only the row beneath it can change those squares back. Puzzles take under a minute and the grid makes an easy tap target on mobile.
Controls
- Click any light to toggle it and its neighbors
- New Puzzle for a fresh solvable board
Tips & Tricks
- 1Order doesn't matter — toggling the same light twice cancels out
- 2Work from a corner or edge inward
- 3Try to clear the bottom row first, then propagate upward
- 4Some puzzles need an unexpected sequence — experiment
Frequently Asked Questions
Why did more lights turn on?
Each press flips the clicked light plus its up/down/left/right neighbors.
Are all puzzles solvable?
Yes — each board is created by scrambling a solved board with valid moves.
Is it free?
Yes — plays instantly in your browser.
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