Lights out solution. Switch off all lights.
The task of the game is to turn all the illuminated buttons off. After pressing the button, light is switched on/off for the button, and its vertical and horizontal neighbors. There are pre-set configurations in the game, or you can set and play your own configuration. The game is very demanding on one’s imagination and therefore the pre-set configurations are simpler. The optimal solution can be displayed for each solvable configuration.
