A child's puzzle.
After uncompressing the zip file (see the link at the bottom of this page), run the program final1. You will be presented with the following GUI.
A child's puzzle.
Use the mouse to click a piece that adjoins the empty space (either vertically or horizontally) to move the piece into the empy space. The object of the game is to arrange the tiles in order, 1-24, with the order starting in the upper left corner and proceeding row-by-row.