Okan Tournament
The Okan Tournament is a Japanese domestic title in which a single game played between the title holder and the challenger decides the match.
This tournament is only open to players in the Nagoya branch of the Nihon Ki-in.
2005 46th Yamashiro Hiroshi vs Hane Naoki 2004 45th Hane Naoki vs Yamashita Keigo 2003 44th Hane Naoki vs Hikosaka Naoto