[M100] Backgammon

[Jason White]

I was perusing an old book (TRS-80 Model 100 A Users Guide) and it mentions 
Chip, a business guy  who uses his Model 100 for darned near everything. One 
thing he used it for was to relax by playing a game of Backgammon against his 
Model 100.
Does this program exist or is it pure fiction? If it does, does anyone know 
where I may obtain a copy?
Thanks in advance,
J White