著名的15谜游戏（15-puzzle ）的Tcl/Tk版本，现在它可以有 4x4, 5x5 或6x6 的格子，所以更加有趣，改变图片也更加容易。 -mystery of the famous 15 games (15-puzzle) Tcl / Tk editions, it could 4x4, 5x5 or 6x6 lattice, the more interesting and change the picture much easier.