Cell36

Cell36 is a puzzle game. It is almost but not impossible to solve this puzzle. So if you are one of those who were able to solve "2048" and "Flappy Bird" then this game is for you.

Instructions:

You are presented with a board of 36 cells (squares) and you have to turn all of the squares off to "Gray". When you tap a cell, the cell itself along with it's adjacent squares flip its color. You have to run particular combination in order to turn all the squares to "Gray".

Best of Luck.