Normally, in game playing, you would really write down all the rules, but in AlphaGo's case, the system looked over a million games and was able to infer its own rules and then beat the world's residing Go champion.
Num jogo, normalmente escrevem-se todas as regras, mas, no caso do AlphaGo, o sistema pesquisou milhões de jogos e foi capaz de inferir suas próprias regras e então vencer o antigo campeão mundial de Go.