Choi Cheol-han

Choi Cheol-han is a South Korean professional Go player. He is the fourth youngest (12 years 2 months) to become a professional Go player in South Korean history behind Cho Hun-hyun (9 years 7 months), Lee Chang-ho (11 years 1 months) and Cho Hye-yeon (11 years 10 months).[1] His nickname is "The Viper".

Choi Cheol-han
Full name	Choi Cheol-han
Hangul	최철한
Hanja	崔哲瀚
Revised Romanization	Choe Cheol-han
McCune–Reischauer	Ch'oe Ch'ŏl-han
Born	South Korea
Residence	South Korea
Teacher	Kweon Kab-yong
Turned pro	1997
Rank	9 dan
Affiliation	Hanguk Kiwon

Choi Cheol-han

Medal record
Representing  South Korea
Asian Games
	2010 Guangzhou	Men's Team
	2010 Guangzhou	Mixed doubles

Biography

Choi became a professional when he was 12 years old. He began playing Go at the age of seven, studying with Lee Sedol in Kweon Kab-yong's academy in Seoul. At that time, Choi was considered the next Lee Sedol.[2]

Promotion record

Rank	Year	Notes
1 dan	1997
2 dan	1998
3 dan	1999
4 dan	2001
5 dan	2002
6 dan	2003	Won the 8th Chunwon against Won Seongjin.
7 dan	2004	Won the 47th Kuksu against Lee Changho.
8 dan	2004	Won the 15th Kisung against Lee Changho.
9 dan	2004	For his performance in the 2004 Korean Baduk League.

Career Record

• 2006: 58 wins, 29 losses[3]
• 2007: 45 wins, 25 losses[4]
• 2008: 50 wins, 18 losses[5]
• 2009: 56 wins, 18 losses[6]
• 2010: 63 wins, 22 losses[7]
• 2011: 50 wins, 24 losses[8]

Titles and Runners-up

As of 17 December 2017

Ranks tenth in total number of titles in Korea.

Domestic
Title	Wins	Runners-up
KT Cup		1 (2002)
Chunwon	4 (2003-2004, 2010-2011)	2 (2012-2013)
Kisung	1 (2004)	2 (2005, 2007)
Guksu	3 (2004-2005, 2011)	3 (2006, 2011-2012)
King of Kings		1 (2005)
GS Caltex Cup	1 (2005)	3 (2006, 2014-2015)
KBS Cup		1 (2006)
Maxim Cup	3 (2009-2010, 2015)	2 (2006, 2012)
Siptan	1 (2012)
Myungin	1 (2013)
Total	14	15
Continental
Title	Wins	Runners-up
China-Korea Tengen		3 (2004-2005, 2011)
Total	0	3
International
Title	Wins	Runners-up
Fujitsu Cup		1 (2005)
Zhonghuan Cup	1 (2005)
Ing Cup	1 (2009)	1 (2005)
Total	2	2
Career Total
Total	16	20

Korean Baduk League

Season	Team	Place	Record
2007	Team World Meridian (Captain)	6th place	6–7[9]
2008	Team No. 1 Fire Insurance	4th place	12–4[10]
2009	Team Hite Jinro (Captain)	6th place	9–3[11]
2010	Team Hite Jinro (Captain)	4th place	10–7[12]
2011	Team Hite Jinro (Captain)	Runners-up	13–4[13]

Chinese A League

Season	Team	Place	Record
2009	Team Sian (Captain)	7th place	9–3[14]
2010	Team Sian (Captain)	2nd place	7–2[15]
2011	Team Sian (Captain)	TBD	10–5[16]

Head-to-head record vs selected players

As of 10 June 2018 [17]

Players who have won international go titles in bold.

• Lee Changho 31:30
• Lee Sedol 20:32
• Park Yeonghun 19:22
• Won Seongjin 18:11
• Mok Jinseok 18:8
• Kang Dongyun 12:11
• Kim Jiseok 11:12
• Chen Yaoye 9:11
• Cho Hanseung 9:11
• Gu Li 8:12
• Park Junghwan 6:12
• An Choyoung 11:5
• Cho Hunhyun 12:2
• Heo Youngho 10:4
• Lee Younggu 9:5
• Chang Hao 6:7
• Shi Yue 6:7
• Yoo Changhyuk 8:4
• Kong Jie 7:5
• Mi Yuting 5:7
• Hong Seongji 8:3
• Yun Junsang 8:3
• Zhou Ruiyang 8:3
• Peng Quan 7:4

References

1. "최철한 9단, 통산 800승 달성". sports.chosun.com (in Korean). 18 September 2012. Retrieved 2016-03-22.
2. "Choi CheolHan". gobase.org. Archived from the original on 10 October 2011. Retrieved 13 June 2011.
3. "Korea win-loss 2006". igokisen.web.fc2.com. Retrieved 13 June 2011.
4. "Korea win-loss 2007". igokisen.web.fc2.com. Retrieved 13 June 2011.
5. "Korea win-loss 2008". igokisen.web.fc2.com. Retrieved 13 June 2011.
6. "Korea win-loss 2009". igokisen.web.fc2.com. Retrieved 13 June 2011.
7. "Korea win-loss 2010". igokisen.web.fc2.com. Retrieved 13 June 2011.
8. "Korea win-loss 2011". igokisen.web.fc2.com. Retrieved 13 June 2011.
9. "2007 Korean Baduk League". igokisen.web.fc2.com. Retrieved 13 June 2011.
10. "2008 Korean Baduk League". igokisen.web.fc2.com. Retrieved 13 June 2011.
11. "2009 Korean Baduk League". igokisen.web.fc2.com. Retrieved 13 June 2011.
12. "2010 Korean Baduk League". igokisen.web.fc2.com. Retrieved 13 June 2011.
13. "2011 Korean Baduk League". igokisen.web.fc2.com. Retrieved 13 June 2011.
14. "2009 Chinese A League". igokisen.web.fc2.com. Retrieved 13 June 2011.
15. "2010 Chinese A League". igokisen.web.fc2.com. Retrieved 13 June 2011.
16. "2010 Chinese A League". igokisen.web.fc2.com. Retrieved 13 June 2011.
17. "崔哲瀚 统计数据". 弘通围棋网.