Honseki

Kumagai Honseki (1676-1699; by other sources: 1678?-1701) 7dan(?)

Pupil of Dosaku. Judging by their teacher-pupil games from 1697(4 wins to 3 losses), he was real 7 dan.

Some games of this player: http://web2go.board19.com/gopro/psnx_list.php?id=661