Yang Dingxin
Yang Dinxin is a Chinese professional Go player. He became a professional on 24 July 2008, at age 9 years and 9 months, becoming the youngest Chinese professional. In 2010, he reached the semi-finals of the 3rd Quzhou-Lanke Cup, beating top Chinese pros Chen Yaoye and Li Zhe before losing to Jiang Weijie.
He won the 5th RICOH Xinxiu Cup.