ARM / Minigames
Lights out
Free Lights out: each press flips a light and its neighbors. Three difficulties, undo, daily challenges and saved progress.
- Presses
- 0
- Target
- 0
Tab enters the board. Use arrows and Space or Enter to press a light. Try to turn them all off within the target number of presses.
Loading game…
End without winning
How to play and game rules
- Turn off every light to win. Pressing a light flips it (on ● or off ·) and also flips its neighbors above, below, left and right.
- Every board is solvable: it is built by pressing a few cells starting from an all-off board. The target is the number of presses used to build it; solving it in that many presses or fewer is ideal but not required.
- Easy: 4×4 with target 5. Medium: 5×5 with target 8. Hard: 6×6 with target 12. Daily uses medium.
- Tab enters the board; arrows, Home and End move focus; Space or Enter presses. Undo reverts the last press. There is no loss unless you end the game.
- Daily: one scored game per UTC date, changing at 00:00 UTC (19:00 in Panama). Unfinished games expire at the next challenge and finished games cannot be restarted.
- Unlimited games keep separate statistics. Only finished games count. Changing language preserves progress. Data stays in this browser and domain; clearing site data removes your history.