A Game Of Solitaire
If you were born after 2000, this one will stump you. 1990s and earlier kids will know exactly what this is. That means our original Reddit poster was a youngster. They couldn’t figure out the purpose of this game until they posted it on the internet.
At first glance, it looks like a bunch of marbles, when it’s a solitaire game, also called Peg Solitaire. Instead of using cards, people used marbles. It’s just another fun way to pass the time before technology came and took over (via Everyday Monkey).