Yu Ch'ang-hyeok
Yoo Changhyuk KBA
Yu Ch'ang-hyeok (or Yoo Changhyuk, Hangul: 유창혁, Hanja?: 劉昌赫, b. 25 April 1966 in Seoul, South Korea) is a Korean, professional 9-dan.
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Career summary
Yu Ch'ang-hyeok is the son of Yoo Hee-beom and Chu Gil-ja. He was one of Korea's top players from the 1990s to early 2000s; won numerous international titles; and held a short rivalry with Yi Ch'ang-ho in the mid 90s. He is said to have been primarily self-taught, having never been the former pupil of a professional (unlike fellow top compatriots, such as Cho Hun-hyeon & Yi Ch'ang-ho).
As a child, he won the Children’s Baduk Championship three times.
As of 2025-07-03, Yu has played 2188 career games, with 1440 wins, 746 losses, and 2 jigo, for a win rate of 65.87%.
Style
His style is to play for influence, his strength in the conversion of attacking positions into advantage in the endgame.
Rank Promotion
- 1984: 1-dan
- 1985: 2-dan
- 1986: 3-dan
- 1990: 4-dan
- 1991: 5-dan
- 1992: 6-dan
- 1995: 7-dan
- 1996: 9-dan, by special recommendation
Titles
- 1986: 2nd New King? (d. 2-0 Im Seon-keun)
- 1988: 6th Taewang (d. 3-1 Cho Hun-hyeon)
- 1991: 2nd Kiseong (d. 4-1 Cho Hun-hyeon)
- 1992: 26th Wangwi (d. 4-3 Lee Changho)
- 1993: 11th Bacchus Cup (d. 3-1 Ch'oe Kyu-pyeong)
- 1993: 6th Fujitsu (d. 1-0 Cho Hun-hyeon)
- 1993: 27th Wangwi (d. 4-2 Cho Hun-hyeon)
- 1994: 28th Wangwi (d. 4-2 Lee Changho)
- 1995: 29th Wangwi (d. 4-3 Cho Hun-hyeon)
- 1996: 14th KBS Cup (d. 2-0 Lee Changho)
- 1996: 1st LG Refined Oils (d. 3-2 Cho Hun-hyeon)
- 1996: 3rd Ing (d. 3-1 Yoda Norimoto)
- 1996: 4th SBS Cup (d. 2-0 Cho Hun-hyeon)
- 1997: 5th SBS Cup (d. 2-1 Lee Changho)
- 1998: 6th Paedal Wang (d. 3-2 Lee Changho)
- 1999: 12nd Fujitsu (d. 1-0 Ma Xiaochun)
- 1999: 7th Paedal Wang (d. 3-0 Cho Hun-hyeon)
- 2000: 5th Samsung Cup (d. 3-1 Yamada Kimio)
- 2001: 2nd Maxim Cup (d. 2-1 Yang Jaeho)
- 2001: 3rd Chunlan (d. 2-1 O Rissei)
- 2002: 6th LG Cup (d. 3-2 Cho Hun-hyeon)
- 2002: 3rd Maxim Cup (d. 2-0 Kim Ilhwan)
- 2003: 2nd KT Cup (d. 2-1 Yi Se-tol)
- 2003: 37th P'aewang (d. 3-0 Lee Changho)
- 2023: 10th Daejoo Cup (d. Kwon Hyo-jin)
- 2024: 5th World Senior Baduk Championship? (d. Luo Xihe)
- 2025: 12th Daejoo Cup (d. Lee Changho)
Runners-up
- 1989: 7th Bacchus Cup
- 1989: 7th Taewang
- 1990: 8th Bacchus Cup
- 1990: 1st Kiseong
- 1992: 10th Daewang
- 1992: 3rd Kiseong
- 1992: 9th Taewang
- 1993: 12th KBS Cup
- 1993: 11th Daewang
- 1993: 24th Myeongin
- 1994: 4th BC Card Cup
- 1994: 12th Daewang
- 1994: 7th Fujitsu
- 1995: 19th Kiwang
- 1995: 18th Kukgi
- 1995: 30th P'aewang
- 1995: 3rd SBS Cup
- 1996: 1st Samsung Cup
- 1996: 8th Asian TV Cup
- 1996: 30th Wangwi
- 1997: 1st LG Cup
- 1997: 32nd P'aewang
- 1997: 2nd LG Cup
- 1999: 4th LG Refined Oils
- 1999: 33rd Wangwi
- 2000: 4th LG Cup
- 2000: 1st Maxim Cup
- 2000: 8th Paedal Wang
- 2001: 12th Kiseong
- 2001: 32nd Myeongin
- 2002: 15th Fujitsu Cup
- 2002: 1st KTF Cup
- 2004: 4th Maxim Cup
- 2005: 24th KBS Cup
Team Titles
- 2009: Korean Baduk League, member Team Yeongnam Ilbo
Pupils
Yoo Changhyuk was the teacher of Choi Jeong, now 9p and the greatest female player of our time.
Personal life
Yoo Changhyuk married to MBC TV anchorwoman ![[ext]](images/extlink.gif)
Kim Tae-hee (金兌姫 after dating for 1 year and 8 months. But she died unexpectedly in 2004 aged only 32, leaving Yu with their two young sons aged only 15 months and two weeks.
Yu has become a well respected TV personality and Korean figure.
External links
- His web-site (in Korean)
- Article: Yoo and his Go School
- Korean Wikipedia
- KBA
- Go4Go
- Go Ratings and Games
Android Software
Yoo Changhyuk has a series of 1,800 life and death problems, split into three difficulty levels, for the Android. (further details and link to the applications on the Android page).
Pictures
Yoo Changhyuk with his late wife Kim Tae-hee (Image credit: chosun.com
![[Welcome to Sensei's Library!]](images/stone-hello.png "Sensei's Library")