Pre-Historic Games

Hello,
I am stilll trying to find information about prehistoric games. Oddly, (And I use the word sarcastically) the internet is of no help. Most of the articles about prehistoric games refere to either chess which is thought to have begun around the 6th century (Excuse me? Is 6th century prehistoric?) or any game that is older than ten years old! So much for prehistory.

The one slightly helpful article is so short as to be useless, but to those of you looking up prehistory and games you might take a look at

THE AZILIAN PEBBLES
... been found around Europe. They have been considered primitive art, markers forprehistoric games, and possibly early forms of notation. Claude Couraude has ...
http://www.science-frontiers.com/sf033/sf033p03.htm .

Good luck on any additional information beyond this source!