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Thu, July 7, 2022 | 17:42
Science
AlphaGo defeats top-ranked Lee Se-dol in historic go match
인류 최강 이세돌, 인공지능 알파고에 충격 패배
Posted : 2016-03-09 16:32
Updated : 2016-03-09 23:37
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Lee threw in the towel after 186 moves

By Lee Han-soo, Park Si-soo

Google's artificial intelligence program, AlphaGo, defeated top-ranked go player Lee Se-dol in the first round of the much-hyped five-game match in Seoul, Wednesday.

The win sent a shock wave through the go world, AI experts and ordinary people, many of whom believed a human would prevail over AI in the extremely complex ancient board game.


The long-awaited match started with Lee Se-dol as black and AlphaGo as white.

Lee was defeated in the end as the initial expectation that he would have the upper hand did not eventuate.

Lee played an aggressive and unconventional game as he tried to look for AlphaGo's weaknesses. But AlphaGo quickly caught up with Lee's advance and seemed unshaken. Appearing surprised by AlphaGo's attack, Lee took time to rethink his next move.

Machine surpasses human intelligence
Machine surpasses human intelligence
2016-03-09 17:11  |  Tech

The game seemed to turn to Lee's favor when AlphaGo made some inexplicable mistakes. Commentators could not explain why AlphaGo made the moves.

Lee, famous for not losing his chance to win, pushed on for victory. But AlphaGo's early moves and Lee's unconventional game play and mistakes led him into Lee throwing in the towel after 186 moves.

AlphaGo's victory was a huge surprise because many expected Lee to win easily.

During the press conference held after the game Demis gave huge respect to Lee and said he was really pleased with how AlphaGo worked.

"Lee pushed AlphaGo's limit to the end throughout the game," added David Silver the leader of the AlphaGo project.


"I never thought I would lose, but I am so surprised that I did. I believe that the reason for my defeat was my mistakes during the beginning. Even then I never thought I would lose, but AlphaGo played so well," Lee said.

Many are even wondering if AlphaGo's mistakes were actual mistakes or a plan to win the end game.

The next match will be held tomorrow at 1 p.m. (KST) and now the tide has turned as people are wondering if Lee can defeat AlphaGo.





인류 최강 이세돌, 인공지능 알파고에 충격 패배

인류 대표로 나선 바둑기사 이세돌 9단이 인공지능 알파고와 벌인 첫 판에서 충격 패배를 당했다.

이세돌 9단은 9일 서울 포시즌스호텔에서 열린 알파고와 한 '구글 딥마인드 챌린지 매치' 5번기 제1국에서 186수 만에 흑으로 불계패했다.

인공지능이 바둑에서 인간 최고수를 이긴 것은 이번이 처음이다. 

구글 자회사인 구글 딥마인드가 개발한 알파고는 지난해 10월 유럽챔피언 판후이 2단을 5대 0으로 누르면서 인간 프로기사를 이긴 최초의 인공지능이 됐고, 이번에는 최초로 세계 바둑 1인자까지 제압했다.

초반까지 둘은 팽팽한 접전을 펼쳤다. 중반에는 이세돌 9단이 좌중앙에 큰 흑집을 지어 다소나마 유리한 형세를 만들었다.

그러나 불리한 판세를 느낀 알파고는 무서운 승부수 '한 방'으로 전세를 뒤집었다.

알파고는 102 수로 우변 흑집에 침투했다. 이에 이세돌 9단이 장고를 거듭했으나 뚜렷한 대응책을 찾지 못했다.

고개를 흔들던 이세돌 9단은 결국 186수 만에 돌을 던져 패배를 인정했다. (연합뉴스)
Emailpss@ktimes.com Article ListMore articles by this reporter
 
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