How to play
Tap a light to toggle it together with the lights directly above, below, left and right of it. Lights that were on turn off and lights that were off turn on. Switch every light off to clear the level. The target shows how many presses were used to build the puzzle; matching it is a perfect solve.
How to solve any board: chasing the lights
- Work from the top row down. For every light that is on in the top row, press the light directly below it. This turns the top row off.
- Repeat for each row until only the bottom row has lights on.
- The pattern left in the bottom row (● = on, read left to right) tells you which top-row lights to press. Press them, then chase the lights down again – the board will finish dark.
Bottom row Press in top row ●○○○● ○○○●● ○●○●○ ○●○○● ●●●○○ ○●○○○ ○○●●● ○○○●○ ●○●●○ ○○○○● ○●●○● ●○○○○ ●●○●● ○○●○○
Tips
- Order doesn’t matter: pressing A then B gives the same result as B then A.
- Pressing the same light twice cancels out, so no light ever needs more than one press.
- Use Hint to see one light that belongs to a solution.
FAQ
Is every level solvable?
Yes. Each level is made by pressing random lights on a dark board, so pressing those same lights again always solves it.