*** special Xmas edition of the popular Brain Teaser Extreme app ***Ready for Brain Teaser Extreme? You will need all your brain power to solve all puzzles. At first, this might look like the good old Tile Puzzle - but it is not. You move the tiles the same way: You have one empty square and you have to move the tiles in the correct position using the empty square. The problem is, you don't know what the picture looks like and you don't know the position of the empty square - the correct position of the empty tile might be anywhere. You first have to figure out where the tiles belong, which is harder than you might think and than move them in the correct place. In the GameCenter you will earn an achievement for every puzzle solved correctly. In the GameCenter leaderboard you will see how you measure against others for how long it took you to solve puzzles of a certain size and how many moves it required you to solve the puzzle.