Kisei; great master of go or shogi
A prestigious title awarded to the winner of the Kisei tournament in go or shogi. Also used historically for exceptional players.
He won the Kisei title three times in a row.
The Kisei tournament is held for both go and shogi.
He became the Kisei at a young age.
She won the Kisei title for the first time.
He has held the Kisei title for three years.
棋士 means any professional go or shogi player, whereas 棋聖 is a specific prestigious title only the tournament winner holds.
From 棋 (go, shogi) and 聖 (sage, master). The title was established in the 20th century for professional go and shogi tournaments.