Yang Shuang

2-dan professional
International go referee and General Manager of Shenyang Century Tianyuan Go Culture Communication Inc.
Go instructor at Shenyang Architecture University
Go commentator for Liaoning and Shenyang TV channels

Zhang Wei

Yang Rong

Cho Hye-yeon

9-dan professional
Winner and runner-up of numerous Korean female titles
Author and translator of several go books
Fourth Korean female player to reach 9-dan, and third youngest professional in Korea at 11 years and 10 months

Ha Minsook

Lee Jaewook

Mizuma Toshifumi

7-dan professional
Famous teacher of a wide range of people, from complete beginners to amateur dan players and from elementary school children to pensioners
His teaching method, named the ‘Mizuma method’, is used in go classes of many Japanese educational institutions

Itō Yasunari