From 1933 to 1934 Shusai played a match against Seigen GO who was a holder of fifth dan (rank) and had won the "Japan Go Championship" hosted by The Yomiuri Shimbun, and in that match between Shusai and Seigen a handicap called Mukai-sen (or Muko-sen) was applied and Seigen therefore took Black throughout the match, resulting in Shusai's victory by 2 points (to be hereinafter described).
1933年～1934年、読売新聞主催の「日本囲碁選手権手合」に優勝した呉清源五段と向先で対戦、2目勝ちを収める（後述）。