Crap! First they teach themselves to beat you at Go! and then they take over the world.
The AI learned without supervision--it simply played against itself, and soon was able to anticipate its own moves and how they would affect a game's outcome.
AlphaGo Zero even devised its own unconventional strategies. The game go is typically played using "stones" colored either black or white on a board with a 19 by 19 grid. Each player places stones with the objective of surrounding an opponent's. "In training, AlphaGo Zero discovered, played and ultimately learned to prefer a series of new joseki [corner sequence] variants that were previously unknown," says DeepMind spokesperson Jon Fildes.