Shifter Game

Shifter is the 15-puzzle game which is a sliding puzzle that consists of a frame of numbered square tiles in random order with one tile missing. The puzzle also exists in other sizes, 9- puzzle, 24-puzzle etc. The object of the puzzle is to place the tiles in order by making sliding moves that use the empty space. To rearrange the pieces, just click on a tile to slide it to the empty place. More