An endlessly changing playground teaches AIs how to multitask

They advance to more complex multiplayer games like hide and seek or capture the flag, where teams compete to be the first to find and grab their opponent's flag. The playground manager has no specific goal but aims to improve the general capability of the players over time. AIs like DeepMind's AlphaZero have beaten the world's best human players at chess and Go. But they can only learn one game at a time. As DeepMind cofounder Shane Legg put it when I spoke to him last year, it's like having to swap out your chess brain for your Go brain each time you want to switch games.