LightOn в Android Market

LightOn (v. 1.0) Разработано Lazyer Studio

The game consists of a 5 by 5 grid of lights, when the game starts, a set of these lights are switched off.
Pressing one of the lights will toggle it and the four lights adjacent to it on and off.
The game provides a puzzle, to switch all the lights on, preferably in as few button presses as possible.