Ko Iso

Ko Iso (simplified Chinese: 黄翊祖; traditional Chinese: 黃翊祖; pinyin: Huáng Yìzǔ; born April 10, 1987) is a professional Go player.

Ko Iso
Full name	Ko Iso
Kanji	コウイソ
Chinese	黃翊祖
Pinyin	Huáng Yìzǔ
Born	(1987-04-10) April 10, 1987 Taiwan
Residence	Tokyo, Japan
Turned pro	2002
Rank	9 dan
Affiliation	Nihon Ki-in

Biography

Ko became a professional in 2002. He was promoted to 7 dan after making it through the preliminary rounds of the Meijin tournament.

Promotion record

Rank	Year	Notes
1 dan	2002
2 dan	2002
3 dan	2003
4 dan	2005
5 dan	2005	Skipped due to qualifying for Meijin leagues. (Special Nihon Ki-in rule)
6 dan	2005	Skipped due to qualifying for Meijin leagues. (Special Nihon Ki-in rule)
7 dan	2005
8 dan	2011
9 dan	2019	Won 200 games at 8 dan

Runners-up

Title	Years Lost
Shinjin-O	2006

External links

• Player page at Japanese Go Association