Original description (proved wrong almost immediately):
I don't think anyone will take the time to work out how to win this game. So, if you do win, please comment and type in the message that follows 'congratulations'.
If you don't get that message, you haven't won.
To win, you have to first work out what winning is. Then you need to observe what is happening in the game. It will then take you approx. 90 seconds to win.
You WILL find this frustrating. You probably will be disappointed too.