Lights Out
Turn off all the lights — but beware the连锁反应.
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How to Play Lights Out
- Click any light to toggle it on or off.
- Clicking also toggles the four orthogonally adjacent lights (up, down, left, right).
- The goal is to turn off ALL lights on the grid.
- Puzzles come in 3×3, 4×4, and 5×5 sizes with increasing difficulty.
Tips & Strategy
- Work systematically — solve row by row from top to bottom.
- On larger grids, use the 'chase the lights' method: fix each row by clicking below lit cells.
- Some configurations require specific patterns — experiment with corners first.
Lights Out — Frequently Asked Questions
Are all puzzles solvable?
Yes, every generated puzzle has a solution. Some require many moves, but all can be solved.
Is there a minimum number of moves?
Yes, each puzzle has an optimal solution. Try to beat it, or use hints to see the shortest path.