Lee Sedol
| Lee Se-dol | |
|---|---|
| Full name | Lee Se-dol |
| Hangul | 이세돌 |
| Hanja | 李世乭 |
| Revised Romanization | I Se-dol |
| McCune–Reischauer | I Se-dol |
| Born | 2 March 1983[1] Sinan County, Jeollanam-do, South Korea |
| Residence |  South Korea |
| Teacher | Kweon Kab-yong[1] |
| Turned pro | 1996 |
| Rank | 9 dan[1] |
| Affiliation | Hanguk Kiwon[1] |
Lee Se-dol (born 2 March 1983) is a South Korean professional Go player of 9-dan rank.[1] As of February 2016, he ranks second in international titles (18), behind only Lee Chang-ho (21).
Biography
Lee was born in South Korea in 1983 and studied at the Hanguk Kiwon. He ranks second in international titles (18), behind only Lee Chang-ho (21). Despite this, he describes his opening play as "very weak".[2]
Lee is married and has one daughter.[3]
In February 2013, Lee announced that he planned to retire within three years and move to the USA to promote Go.[4]
He plays on Tygem as "gjopok".[5]
Much more information is listed on Sensei's Library: [2], including a discussion of his playing style and particular strengths and weaknesses.
Match against AlphaGo
Starting March 9, 2016, Lee is due to play a five-game match, broadcast live, against the computer program called AlphaGo, developed by a London-based Artificial Intelligence firm Google DeepMind, for a $1 million match prize.[6][7][8] He said “I have heard that Google DeepMind’s AI is surprisingly strong and getting stronger, but I am confident that I can win at least this time”.[9]
In an interview with Sohn Suk-hee of JTBC Newsroom on February 22, 2016,[10] he showed self-confidence again, while saying that even beating AlphaGo by 4-1 may allow the Google DeepMind team to claim its de facto victory and the defeat of him, or even humankind. In this interview he pointed out the time rule in this match, which seems well-balanced so that both he and the AI would fairly undergo time pressure.
Lee's Broken Ladder Game
This was a match between Lee Se-dol and Hong Chang-sik during the 2003 KAT cup. This game is notable for Lee's use of a broken ladder formation.
Normally playing out a broken ladder is a bad mistake, a pitfall associated with bad beginner play; the chasing stones are left appallingly weak. Between experts it should be decisive, leading to a lost game. Lee, playing black, defied the conventional wisdom, pushing development of the ladder to capture a large group of Hong's stones in the lower-right side of the board. Although Black could not capture the stones in the ladder, White ultimately resigned. [11]
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| Moves 67 to 74 (Black: Lee Se-dol; White: Hong Chang-sik) |
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| Moves 89 to 97 (Black wins when White resigns at move 211) |
Promotion record
| Rank | Year | Notes |
|---|---|---|
| 1 dan | 1995 | Promoted to professional dan rank after passing qualifying test. |
| 2 dan | 1998 | |
| 3 dan | 1999 | |
| 4 dan | 2003 | |
| 5 dan | 2003 | |
| 6 dan | 2003 | Won the LG Cup against Lee Chang-ho. |
| 7 dan | 2003 | Runner up in the KT Cup against Yoo Changhyuk. |
| 8 dan | 2003 | Skipped over because of the Hanguk Kiwon promotion rules. |
| 9 dan | 2003 | Won Fujitsu Cup against Song Tae Kon. |
Career record
 | This section needs to be updated. (January 2016) |
|
|
|
- Total: 472 wins, 185 losses, 0 jigos (71.8% winning percentage)[1]
Titles and runners-up
Ranks #3 in total amount of titles in Korea and #2 in international titles.
| Domestic | ||
|---|---|---|
| Title | Wins | Runners-up |
| Guksu | 2 (2007, 2009) | 1 (2014) |
| Myungin | 3 (2007, 2008, 2012) | 1(2013) |
| Siptan | 1 (2011) | |
| GS Caltex Cup | 3 (2002, 2006, 2012) | 2 (2007, 2013) |
| Prices Information Cup | 3 (2006, 2007, 2010) | 1 (2008) |
| Chunwon | 1 (2000) | 2 (2006, 2008) |
| KBS Cup | 2 (2006, 2014) | 3 (2001, 2004, 2009) |
| Maxim Cup | 4 (2005–07, 2014) | 1 (2013) |
| Wangwi | 2 (2002, 2004) | |
| Baedalwang | 1 (2000) | |
| BC Card Cup | 1 (2002) | |
| KTF Cup | 1 (2002) | |
| KT Cup | 1 (2003) | |
| SK Gas Cup | 1 (2002) | 1 (2000) |
| New Pro King | 1 (2002) | |
| Paedal Cup | 1 (2000) | |
| Olleh KT Cup | 2 (2010, 2011) | |
| Total | 27 | 15 |
| Continental | ||
| China-Korea New Pro Wang | 1 (2002) | |
| China-Korea Tengen | 1 (2001) | |
| Total | 1 | 1 |
| International | ||
| Asian TV Cup | 4 (2007, 2008, 2014, 2015) | 1 (2009) |
| LG Cup | 2 (2003, 2008) | 2 (2001, 2009) |
| BC Card Cup | 2 (2010, 2011) | |
| Samsung Cup | 4 (2004, 2007, 2008, 2012) | 1 (2013) |
| Chunlan Cup | 1 (2011) | 1 (2013) |
| Fujitsu Cup | 3 (2002, 2003, 2005) | 1 (2010) |
| World Oza | 2 (2004, 2006) | |
| Zhonghuan Cup | 1 (2005) | |
| Mlily Cup (梦百合杯) | 1 (2015/16) | |
| Total | 18 | 8 |
| Career total | ||
| Total | 46 | 24[12] |
Korean Baduk League
| This section needs to be updated. (January 2016) |
| Season | Team | Place | Record |
|---|---|---|---|
| 2007 | Team No.1 Fire Insurance (Captain) | 4th place | 9–5[13] |
| 2008 | Team No. 1 Fire Insurance (Captain) | 4th place | 13–3[14] |
| 2010 | Team Shinan Chunil Salt (Captain) | Champions | 16–2[15] |
| 2011 | Team Shinan Chunil Salt (Captain) | TBD | 1–2[16] |
Chinese A League
| Season | Team | Place | Record |
|---|---|---|---|
| 2007 | Team Guizhou (Captain) | 2nd place | 9–3[17] |
| 2008 | Team Guizhou (Captain) | 2nd place | 8–0[18] |
| 2009 | Team Guizhou (Captain) | 8th place | 6–4[19] |
References
- ^ a b c d e f Lee SeDol gobase.org, accessed 22 June 2010
- ^ Lee Sedol Interview justplaygo.com, accessed 22 June 2010 Archived 2010-07-05 at the Wayback Machine
- ^ An Younggil. "Biography of Lee Sedol". Retrieved 2013-02-11.
- ^ An Younggil. "Interview with Lee Sedol". Retrieved 2013-02-11.
- ^ [1] gosensations.com, accessed 19 February 2012
- ^ "Google to Livestream 'Go' Battle Between World Champ, AI Tech". PCMAG. Retrieved 2016-02-08.
- ^ Elizabeth Gibney (27 January 2016). "Go players react to computer defeat".
- ^ "Computer Says Go". The Economist. 30 January 2016. Retrieved 4 February 2016.
{{cite web}}: Italic or bold markup not allowed in:|publisher=(help) - ^ "YouTube will livestream Google's AI playing Go superstar Lee Sedol in March". VentureBeat. Retrieved 2016-02-08.
- ^ "[인터뷰] 이세돌 "5대 0으로 이기지 않으면 의미 없다고 생각해"". news.jtbc.joins.com (in Korean). Retrieved 2016-02-25.
- ^ Sensei's Library: Lee Se-dol - Hong Chang Sik - ladder game
- ^ Lee Sedol 9p gogameworld.com, accessed 22 June 2010
- ^ "2007 Korean Baduk League". igokisen.web.fc2.com. Retrieved 13 June 2011.
- ^ "2008 Korean Baduk League". igokisen.web.fc2.com. Retrieved 13 June 2011.
- ^ "2010 Korean Baduk League". igokisen.web.fc2.com. Retrieved 13 June 2011.
- ^ "2011 Korean Baduk League". igokisen.web.fc2.com. Retrieved 13 June 2011.
- ^ "2007 Chinese A League". igokisen.web.fc2.com. Retrieved 13 June 2011.
- ^ "2008 Chinese A League". igokisen.web.fc2.com. Retrieved 13 June 2011.
- ^ "2009 Chinese A League". igokisen.web.fc2.com. Retrieved 13 June 2011.