Go-Playing Trick Defeats World-Class Go AI -- but Loses to Human Amateurs

KataGo's world-class AI learned Go by playing millions of games against itself, but that still isn't enough experience to cover every possible scenario, allowing for vulnerabilities from unexpected behavior. In the world of deep-learning artificial intelligence (AI), the ancient board game Go looms large. Until 2016, the best human Go player could still defeat the strongest Go-playing AI. That changed with DeepMind's AlphaGo, which used deep-learning neural networks to teach itself the game at a level humans cannot match. More recently, KataGo has become popular as an open source Go-playing AI that can beat top-ranking human Go players.