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, Sedol 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]
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. [10]
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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[11] |
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[12] |
| 2008 | Team No. 1 Fire Insurance (Captain) | 4th place | 13–3[13] |
| 2010 | Team Shinan Chunil Salt (Captain) | Champions | 16–2[14] |
| 2011 | Team Shinan Chunil Salt (Captain) | TBD | 1–2[15] |
Chinese A League
| Season | Team | Place | Record |
|---|---|---|---|
| 2007 | Team Guizhou (Captain) | 2nd place | 9–3[16] |
| 2008 | Team Guizhou (Captain) | 2nd place | 8–0[17] |
| 2009 | Team Guizhou (Captain) | 8th place | 6–4[18] |
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.
- ^ 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.