In the Kamakura period, gambling games of sugoroku and shiichi-han were popular among gokenin, and some of them even risked their residence or territory, which sometimes resulted in a killing fight, and became a social problem.
鎌倉時代には御家人による双六や四一半による博打が盛んで、中には屋敷や所領まで賭ける者がいて、勝敗がもとで殺し合いにまでなり、社会問題となっていた。