💡 Lights Out
Toggle lights to turn them all off. Each press affects neighbors!
A.K.A.
Also known as: Toggle Puzzle, XOR Puzzle
Category
Grid Shading
How to Play
- Click a cell to toggle it and its orthogonal neighbors
- Toggling changes ON to OFF and OFF to ON
- Turn all lights OFF to win
- Order of clicks doesn't matter
- Clicking the same cell twice cancels out
Puzzle Source
🔧 Generator
Puzzles are algorithmically generated on-the-fly.
Source: Random solvable light configurations
Tips & Strategy
- Each cell only needs to be clicked 0 or 1 times
- Work systematically from one edge to the other
- The solution, if it exists, is unique (up to order)
Issues & Bugs
🔍 Search existing issues for "LightsOut"
📝 Report a new bug
Part of the Enigma puzzle collection