Shusai's Last Match and the Sealed Move
In 1938 the aging Honinbo Shusai played his retirement game against the younger Kitani Minoru (fictionalized as Otake). The game stretched over roughly six months with long interruptions while Shusai was hospitalized with heart trouble. Near the end the challenger's sealed move, a forcing play widely read as chosen for tactical advantage under the new adjournment rules, embittered the Master, who lost by five points and died about a year later.
