Top Go grandmaster Shin Jin-seo defeats KataGo 2-1 in three-game series

GG Brief Editorial Desk · AI-assisted, source attributed

Top-ranked Go player Shin Jin-seo beat the AI engine KataGo 2-1 in a three-game series that concluded July 21. Shin lost the opening game then won the next two, including a three-hour final match, while playing with a two-stone handicap. This is the first official series victory by a human over KataGo and shows elite players can still prevail against advanced Go AI after a decade of rapid progress since AlphaGo.

• Shin Jin-seo is 26 and entered the series as a top-ranked professional Go grandmaster.
• Shin lost game one but rallied to win games two and three, clinching the series 2-1; the final game lasted about three hours.
• Shin played the series with a two-stone handicap and said he wants to face AI under more disadvantageous conditions in future matches.
• The result is the first official three-game series win by a human against KataGo, occurring roughly a decade after AlphaGo defeated Lee Sedol.