All Japan Student Go Federation

All Japan Student Go Federation (全日本学生囲碁連盟) is a Japanese student Go organization for holding university Go championships. They have branches in each regions (Kanto, Kansai, Kyushu, Tohoku etc.).
Differences with other organizations.
In Japan, most Go tournaments are held by Nihon Ki-in or Kansai Ki-in. All Japan Student Go Federation and their branches are made for student games. They are not under direct control but have close relation with them.
Tournaments.
They are holding various tournaments with corporate sponsors.
World Students Go Oza Championship.
This is a game to give the student world champion trophy since 2003. Players from each region (including Taiwan, Europe, Oceania etc.) will compete. The expected games in 2020 have been cancelled due to the COVID-19 outbreak.
All Japan University Go Championship.
This is a team competition by each university. Teams that have cleared regional preliminaries can attend. Each team can send only 5 members and substitutes. The sponsor is Yomiuri Newspaper (as same as Yomiuri Giants).
All Japan Female Student Honinbo.
This is the only one game that limits participants by gender. The sponsor is Mainichi Newspaper. Some winners have eventually obtained professional status, or became top amateur players.
All Japan Student Go Best 10.
This is the only one game that allows the attendance of high school and graduate students. It is held since 1964. The sponsor is Asahi Shinbun.