Here's a standalone version of the Yahtzee game from the Grail applet
demonstration directory.  If you have Grail, point it at:

    http://grail.cnri.reston.va.us/grail-0.2/demo/yahtzee/index.html

The five lines at the bottom of the yahtzee.py file are all you need
to turn a well contained Grail applet into a standalone Tkinter
program.

To run this as a standalone, you don't need Grail, but you do need
Python 1.3 and Tk 4.0.  I can't think of any other dependencies, but
if you find one, please let me know.

-Barry
bwarsaw@cnri.reston.va.us
04-Jan-1996