Ryokusei Academy

(緑星囲碁学園) The Ryokusei Academy or Ryokusei Igo Gakuen Academy is a famous go academy founded in Japan in 1975. It is run by Japanese amateur Kikuchi Yasuro and has produced several professional players, including Yamashita Keigo and Aoki Kikuyo.

The school invented a Points Rating System, which is sometimes called Ryokuseikai system (緑星会方式).