Shin Jin-seo Defeats Yang Ding-sin in the Quarterfinals of the Ranker Cup World Baduk Tournament… Advances to the Semifinals Alone Park Jeong-hwan, Byun Sang-il, and Kang Dong-yoon eliminated in the quarterfinals. Shin Jin-seo, 9th Dan, the strongest player in Korean Baduk, has advanced to the quarterfinals of the Quzhou Ranker Cup. On the 27th, in the quarterfinals of the 2nd Quzhou...