The object of the game is to turn off all the lights.
Pressing a button toggles that light on or off. But theres a catch! Surrounding buttons are also toggled! Can you solve the puzzle and turn out all the lights?
This is a great, simple game that you can play over and over again. Challenge yourself to solve random puzzles. Figure out a solution for one board size? Try changing the number of rows or columns and try again. Can you master the nearly 30 possible board sizes and nearly infinite number of random starting conditions?
You can also select between classic and modern mode. In classic, pressing an edge button only changes the immediately adjacent buttons. In modern mode, pressing an edge button wraps across to toggle the opposite edge as well, bringing a whole new level of difficulty and requiring completely new strategies!