Kyo Kagen (Japanese: 許 家元 Taiwanese: Hsu Chiayuan (Xu Jiayuan), b. 1997-12-24) is a 9-dan Taiwanese? professional go player of the Nihon Kiin. He was the pupil of Takabayashi Takuji.
2014: 2d (awarded for 30 wins as 1d)
2018: 8d (awarded for winning the 43rd Gosei)
Titles & Runner-ups
|2013||10th Nakano Cup||Hirata Tomoya||1-0|
|2014||1st Globis Cup runner-up||Ichiriki Ryo||0-1|
|2016||3rd Globis Cup runner-up||Li Qincheng||0-1|
|2018||43rd Gosei||Iyama Yuta||3-0|
|2019||44th Gosei runner-up||Hane Naoki||2-3|
|2021||59th Judan||Shibano Toramaru||3-2|
- In 2013, Kyo played 18 official games (16 wins, 2 losses; 88.9% was the best record in the year), winning 10 games in a row from 2013-10-03 to 2013-12-30. He extended his winning streak to 13 consecutive wins on before losing to Oya Koichi. On 2014-03-27, his record was 14 wins, 1 loss (with a new winning streak of 11 consecutive wins), the best among Japanese pros at the time.
- In 2018, Kyo won the Gosei title after 5 years 4 month from becoming a professional 1 dan. This was a new record at the time for the shortest time taken from becoming a pro to winning a title tournament in Japan. (Later surpassed by Shibano Toramaru's 5 years 1 month and Seki Kotaro's 4 years 8 months.)
- Nihon Kiin profile.