If you click at a square next to the empty square it will move to the empty place. The purpose of this game is to order all numbers like in the table below.

If you think this game is too easy you can try to start with this position:

APPLET GAME FIFTEEN

Sorry, your browser does not support Java

Everyone in my class who solves the second puzzle will get an A for the course. You can find here why this is not the simpliest way to earn your grade :

Permutations and Game15