If you’re old enough, you’ll remember one of the first cell phone games, “Snake”. “Snake” involved you (the snake) eating a single pellet and growing a bit bigger, only to eat another pellet and grow a bit bigger, etc. so it became more and more difficult to keep from running into yourself and ending the game. Come to think of it, the basis for the game sounds a lot like the first idea for Viagra.
This might be the computer playing itself, or a game slowed enough to allow for such mathematical mastery, but either way it’s a thing of beauty to watch.