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Lights Out

Toggle lights and their neighbors until the whole grid goes dark.

Category
Strategy
Difficulty
Medium
Play time
3-7 minutes
Updated
Moves0
Lit0
Best-

Turn every light off. Each tap toggles a plus shape.

How to play

Learn the objective before jumping into a new run.

  • Choose Easy 4x4, Standard 5x5, or Hard 6x6, then tap lights to toggle them.
  • Each tap flips the selected light plus its up, down, left, and right neighbors.
  • Clear the board by turning every light dark.

Controls

Keyboard and mobile instructions for this game.

  • Mouse or touch: tap a light to toggle it and its four neighbors.
  • Keyboard: tab to a light and press Enter or Space.
  • Use New puzzle to generate a fresh solvable board.

Tips

Small habits that can improve your score.

  • Work from the top row downward so earlier rows stay solved.
  • If a light remains on in a row, press the cell directly below it in the next row.
  • Hard boards are still solvable; they just need more careful row-by-row planning.

FAQ

Quick answers for common questions.

Are Lights Out puzzles solvable?

Yes. Each puzzle starts from an all-dark board and applies real toggles, so the generated state can be solved.

Can I replay a difficulty?

Yes. Use New puzzle or change difficulty to generate a fresh board.

Does Lights Out have a leaderboard?

No. This first version stores a local best move count for each difficulty.

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