Some people take the view of this as an action to raise a question about the revision of the then Japan Igo rules with several unreasonable points since there was a trouble in the interpretation of the rules concerning the ko at the end of the game of the preceding the second game out of Honinbo three match series between Go and Kaku TAKAGAWA.
これは直前に行われた呉-高川格の本因坊三番碁の第2局で、終局時にコウの手入れを巡るルール解釈の問題が生じたことから、当時不合理な点の残る当時の囲碁規約見直しについての問題提起の一つであった、との見方もある。