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Lee Changho lost the Korean Guksu title to challenger and newcomer Yun Junsang (19 years old, 4 dan). Lenius corrected me: Yun Junsang is not a newcomer to the top professional Go: in 2002 when he was only 1p (and 14-15 years old!) he only lost 2-1 to Cho Hunhyun in a playoff to decide the challenger to Kiseong title (equivalent to the Japanese Kisei). I wrote my thoughts on the 4th and last game. It was interesting how kosumi-tsuke appeared in the opening, how White sacrificed a group, and how Black played 3 moves in a row on the second line, in the middle game.