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17-471: Ke Jie started to learn how to play Go in 2003 when he was 5 years old and won his first national championship in 2007. He became a professional Go player in 2008 when he was 10 years old and was promoted to 9 dan in 2015. In January 2015, Ke won his first world title when he won the 2nd Bailing Cup , defeating Qiu Jun 3-2 in the finals. In December 2015, he defeated Shi Yue in the 20th Samsung Cup finals to win another world title. In January 2016, Ke won

34-634: A 22-game winning streak against human opponents. Ranks #5 in total number of titles in China and ranks #4 in total number of international titles . (W) Winner; (RU) Runner-up; (SF) Semifinalist; (QF) Quarterfinalist; (R16) Round of 16; (R32) Round of 32; (R64) Round of 64. Players who have won international Go titles in bold. In 2019, Ke enrolled as a student at Tsinghua University majoring in Business Administration. Bailing Cup The Bailing Cup ( Chinese : 百灵杯 )

51-476: Is no significant weakness in Ke's game. However, he occasionally plays carelessly with a positional advantage without deep reading. After his defeat to AlphaGo, Ke Jie studied the program's games to find inspiration for new strategies, and adopted a territory-oriented style of play. Ke's opening arsenal is deeply influenced by the new generation of Go programs, namely AlphaGo, FineArt, Zen and CGI. He subsequently went on

68-460: The 2nd MLily Cup , defeating world renowned Go player Lee Sedol in the fifth round. According to South Korean 9 dan professionals commenting on the final game, the result hinged on a half-point ko and the peculiarities of Chinese scoring rules; however, others have pointed out that this argument is misleading as differences in komi between the Chinese and Japanese scoring systems would have made up

85-453: The 3rd Bailing Cup, Ke defeated Xu Jiayang to advance to the best-of-three semifinal match where he faced Won Seong-jin . In the first game, Won defeated Ke with a comeback victory after Ke had made crucial mistakes when analyzing territory turnover; however, he was able to recover in the second game by playing a very close endgame in which he maintained a territorial lead. In the decisive third game, he continued to make advantageous moves during

102-460: The Chinese Go rule requires a Black victory of at least 4 over the 180.5 (i.e., 184.5 is the minimum for a Black victory). Ke Jie resigned in the second game after 156 moves and the third game after 209 moves. Ke Jie's style of play is characterized by accurate positional judgment and reading. Ke's reading is both reliable and fast. He regularly uses less time in a game than his opponents. There

119-501: The extra point, leading to the same result. On 11 February 2016, he defeated Lee once more in the finals of the 2016 HeSui Cup. On 5 March 2016, Ke defeated Lee yet again in the finals of the 2016 Nongshim Cup to win the tournament for the Chinese squad, making it China's third consecutive win of the tournament. Ke became highest ranked player in the official Chinese Weiqi Association ranking in September 2015. In August 2016, at

136-424: The first game, Chen displayed his tenacity in chasing and eventually leading in territory with very few opportunities for Ke to win in the endgame. The second game was similar to the first, but during the middle game, Ke deviated and began to chase and attack Chen's dragon, forcing Chen to maneuver around the middle of Ke's territory; however, Ke's made a mistake on the 105th move that allowed Chen to retaliate and take

153-404: The initiative, causing the match to eventually end on move 178. From 31 October 2016 to 2 November 2016, Ke played against rival Lee Sedol once more during the semifinals of the 21st Samsung Cup. In the first game of the best-of-three match, Ke was reported to have won a very complete game in which Lee had very few opportunities in the endgame; however, going into the second game with no breaks, Ke

170-486: The match and then won the deciding game with black to successfully defend his Samsung Cup title. Ke reached the finals of 1st ENN Cup , defeating Ahn Kuk-hyun, Tang Weixing , Ida Atsushi , Lian Xiao and Li Zhe , from November 2016 to May 2017. Ke won the title by defeating Peng Liyao 3-2 in the finals in December 2017. On 4 June 2016, at a news conference during the 37th World Amateur Go Championship , Yang Jun'an,

187-452: The middle-game and maintained a comfortable territorial lead. Ke was able to forced a successful ko fight at the top of Won's territory, resulting in the Won's resignation due to a lack of ko threats. Ke then faced Chen Yaoye in the final best-of-five match, which was the third straight Bailing Cup finals to have been contested between Chinese players. The first two games were both won by Chen. In

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204-841: The party chief of the Zhongguo Qiyuan and executive of the International Go Federation , revealed that the Google program AlphaGo would possibly have a match against Ke in the future. However, Google DeepMind CEO Demis Hassabis responded that it had not yet been decided what to do next with AlphaGo. In early January 2017, Ke Jie played three unofficial online games against " Master ", an updated version of AlphaGo , losing all three. Ke stated he still had "one last move" to defeat AlphaGo. Regarding AlphaGo, Ke Jie stated that "One can only learn from its strategic philosophy and not only tactics." A three-game match

221-478: The second game with a stunning comeback victory. With black winning both games by resignation, the third game had both players coin-toss for the choice of stones. Ke had the white stones in the third game and was able to secure all four corners to gain a territorial lead from the beginning. The remainder of the game displayed his ability to invade and scrape away Lee's territorial potential. As Lee began to find it difficult to gain any territorial advantage, he pressed on

238-480: The weaknesses of white's territory hoping to reverse the game, but Ke responded accurately and did not allow any opportunities for Lee. Lee resigned the final game, and Ke advanced to the finals of the Samsung Cup for the second year straight. From 6 December 2016 to 8 December 2016, Ke played the finals against compatriot Tuo Jiaxi . After losing the first game with black, Ke won the second game with white to even

255-523: Was an international Go competition . The tournament was held every two years between 2012 and 2019, for a total of four times. It was sponsored by the Bailing Group of China. 16 seeded players were invited and 48 players qualified from preliminaries. Seeded players were chosen as follows: The winner's purse was ¥1,800,000. In the 4th Bailing Cup, it became a tournament with 16 players competing. Players were chosen as follows: The winner's purse

272-413: Was not able to maintain his advantage with the white stones and Lee produced one of his trademark comeback victories. The game began very evenly until Ke acquired positional advantage, and a huge lead in territory, but Ke made several mistakes when fighting Lee's dragon in the center of the board. Lee responded accurately and reversed the game, saving his stones and gaining a lead in territory. Lee closed out

289-538: Was played by Ke Jie against AlphaGo at the Future of Go Summit in Wuzhen from 23 to 27 May 2017. Google DeepMind offered 1.5 million dollars winner prizes for this match while the losing side took 300,000 dollars for participating in the three games. AlphaGo beat Ke Jie in the first game by half a point on 23 May 2017. The official scoring for the first match was 184 out of the 361 possible points in favor of Ke Jie, but

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