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