: ( 353)
Black gives atari on the first line here, hoping to establish another valid ko-threat on the left edge, at .

:
Black gives atari on the left side for the second time. But so late in the sequence, there are no valid ko-threats for Black on the left side of the board.

:
White ignores Black's last move, and connects the ko.

:
Black captures the entire left side.

Black is unable to capture at , instead, because White would connect at , and rescue her stones.

:
However, capturing the entire right side is bigger. White wins the game with ease.