Ch'oe Ch'eol-han (최철한, 崔哲瀚, Choi Cheolhan, b. 12 March 1985 in Seoul, South Korea) is a Korean professional 9-dan of the Hankuk Kiwon. He was a student at the famous Kweon Kap-yong baduk academy in Seoul. Ch'oe is known for being part of the newcomer generation that successfully challenged Yi Ch'ang-ho's dominance in the mid 2000s, and for his ferocious fighting style that has given him the nickname, The Poisonous Snake. On 20 August 2013, he reached his 900th career win (the 10th Korean to do so).
- 1997: 1-dan
- 1998: 2-dan
- 1999: 3-dan
- 2001: 4-dan
- 2002: 5-dan
- 2003: 6-dan
- 2004: 7-dan, for winning 27th Kuksu
- 2004: 8-dan, for winning 15th Kiseong
- 2004: 9-dan, for league points
- 2003 8th Chunwon (over Weon Seong-chin)
- 2004 47th Kuksu (over Yi Ch'ang-ho)
- 2004 15th Kiseong (over Yi Ch'ang-ho)
- 2004 9th Chunwon (over An TalHun)
- 2005 48th Kuksu (over Yi Ch'ang-ho)
- 2005 2nd Zhonghuan Cup (over Yi Se-tol)
- 2005 10th GS Caltex Cup (over Yi Ch'ang-ho)
- 2009 10th Maxim Cup (over Park Yeonghun)
- 2009 6th Ing Cup (over Yi Ch'ang-ho)
- 2010 11th Maxim Cup (over Kang Dongyun)
- 2011 15th Chunwon (over Lee Taehyun)
- 2011 54th Kuksu (over Yi Ch'ang-ho)
- 2011 16th Chunwon (over Yun Junsang)
- 2012 7th Siptan (over Kang Dongyun)
- 2013 41th Myungin (over Lee Sedol)
|Year||Year Total||Win||Loss||NR||Career Total||Win||Loss||NR|
Two of his wins in the 15th Kiseong used an unconventional fighting fuseki as Black that was very effective against Yi Ch'ang-ho at the time (e.g. the second game of the title match). The result of Ch'oe's performance and the fuseki motivated further usage of it against Yi Ch'ang-ho that same year. For example, Mok Chin-seok in the 2004 LG cup finals, and Ch'oe again in the 2004 Ing Cup. The fuseki was as follows:
- According to http://www.go4go.net, his score versus Yi Ch'ang-ho was 10-7 through April 2005. Now (2009-10-31) his score versus Yi Ch'ang-ho is 24-24; at the same date, Choi was ranked #1 in the Hankuk Kiwon Pro Rating.
- In 2004, he advanced to the final of the 5th Ing Cup allowing him exemption from military conscription.
- sol.ch claims that Choe plays as "showmethe" on Tygem on a GoSensations article: http://gosensations.com/?id=2&server_id=4&new_id=1133 (doesn't link to the correct article anymore as of 2021-07-19)
- Some of Choi's games: Go4Go.