Any sequence can be targeted, but if you order them in the numeric sequence as displayed when pressing the 'Arrange' button (after a 'Shuffle'), a special 'congratulations' appears, along with the move count and time to complete. 'Arrange' puts the tiles in numeric order. 'Shuffle' randomly sequences them. You can also shake the device to shuffle. Double tap with two fingers to see the back of the game where the author had his original named etched. Double tap again to get the front of the puzzle. 1.0 Initial Release 1.1 Updated for IOS 1.2 Updated for IOS. Added number of moves and time to complete after puzzle is solved.