Number Slider Game

I'd like to present my first game, also known as Number Slider. The goal is to bring the number in the right order from the upper left to the lower right by sliding the sigle numbers.

The jar can be started with

JavaPath\javaw.exe -jar PuzzlePath\ZahlenPuzzle.jar param

where param must be a number between 3 and 8. I no param is given the default size of the puzzle will be a 3x3 matrix, ortherwise the size will be the param.

Please not that the final dialog is in german: Press yes for replay or no for exit.

Can be handy in boring hours. Let me know!

Applet applet applet!

The NumberSlider.zip file does not open as zip. I get an invalid format error.
Here is first line of a zip: 504B030414000200080047993A3D3EAE Starts with PK
Here is first line of yours:377ABCAF271C000328714A4579170000 Starts with 7z