The game of Go has long been viewed as the most challenging of classic games for artificial intelligence 囲碁はAIにとってもっとも困難なボードゲームの一つと考えられてきました (Mastering the game of Go with deep neural networks and tree search | Nature より) Alpha Zero: https://science.sciencemag.org/content/362/6419/1140.full?ijkey=XGd77kI6W4rSc&keytype=ref&siteid=sci (オープンアクセス版) Alpha Go Zero: Mastering the game of Go without human
