Twelve Tile Puzzle

The Twelve Tile Puzzle features 12 colored tiles that need to be placed in order by selecting selecting one of two moves, such as "Flip" and "Merge" Although this puzzle is heavily inspired by the Scientific American's M12 puzzle it has some significant additional features. See the included help via the "Menu" button. Twelve Tile Puzzle is free and open source (GPL version 2 or later). It contains no advertising. It requires no security permissions.