IGS 10d Duel: KataGo Breaks Down the B8 Collapse

Two 10-dan players face off on IGS in a game that drew 21 live spectators—an unusually high audience for amateur play. Black surged to 92% after move 36, but a single slack move at B7 (move 37) opened the door. White's response at B8 (move 38) looked punishing but KataGo's postmortem reveals it was the losing move—dropping White from 37% to 13% in one stroke. By move 176, Black had forced resignation. This is the kind of game where both players felt the pressure of every stone, and KataGo's analysis shows why: the margin between winning and losing was a single reading mistake in a sharp tactical sequence. If you were sitting at that board with 20 people watching, you'd probably play the same way.