💡 Lights Out

Lights Out is the classic toggle puzzle. Pressing a cell flips it and its four neighbours — the goal is to turn every light off.

How to play

1. Tap a lit cell to flip it and its neighbours.
2. Moves are unlimited; think about which cells each tap affects.
3. Clear the board to finish — time is your score.

Difficulty affects grid size and time is your score — finish fast, post to the daily leaderboard, or race a friend.

All puzzles