This is a simple, but very addictive mind twister puzzle game. The rules are not complicated to learn: There is a pattern in the lower left side of the screen that you have to copy into the tiles in the main screen. You touch the tiles to flip them around to change color. If you flip one tile, all of the neighboring tiles will also filp. You have to do this in a limited time – so better think fast how the final pattern has to look like after applying the transformations. If you finish it you go to the next level and get bonus points for time left.

http://appshopper.com/games/brainteaser