Brain Teaser Free

You can never go wrong trying out a free puzzle game. I've tried quite a few and a lot of them are just not a challenge. This app however is. The object of the game is simple. You are given grid of 9 two-sided squares that are a different color on each side. You are then given a patern to match. So you have to flip the squares to match the pattern. The only catch is that flipping one square also flips over any square it's touching. No matter how many times you get to a high level, it is still hard to get back to that point again. Definately a good app to challenge your friends with.