On July 20 of the same year, there occurred an incident that Nobuzane KAJI, 15-year-old son of Moritsuna, hit Suketsune KUDO on the forehead with a stone while they were palying a game of Sugoroku at Yoritomo's residence, and Suketsune got bleeding.
同年7月20日、頼朝の邸宅での双六の最中に、盛綱の15歳の息子・加地信実が工藤祐経の額を石で打ち、流血へと至る事件が起きる。