James Woods, an althlete from Savannah, GA, created the Woods Pyramid Game. It’s two pyramids, base to base, with ten rows of spaces, each containing a stone. On your turn, remove any number of stones from a single row. Object of the game? Don’t take the last stone.

According to this article in Savannah Now, he invented the game after looking at the Pyramids while stationed in Egypt.

“You had stones that weighed 20 tons and stones that weighed 2,000 pounds and they were build with no mortar and .500th’s of an inch between them,” he marveled.

And to seal it off …

The game was so popular that in 1999 Woods applied for a patent.

(NIM games)