This is a simple and interesting game that can be played at any time and at any place. The game will be challenging and needs some logical thinking as you go higher level. If you need some distraction and entertaining time, this is a fun game to play. When you click on a button, you change the status of the button and the status of all the adjacent buttons. The status can be marking or unmarking a button by ' x' symbol. If the status of a button is unmarked.