: ( 435)
Black plays in the centre first.

:
In return, White can take the point on the upper edge.

, :
These two moves are miai.

:
Black is able to eliminate one of White's potential ko-threats.

:
Black starts the final ko.

White gained three additional ko-threats on the upper edge, but this is not enough. Both sides have seven ko-threats each (, ), so again, Black will win the final ko.

Black wins by five points.

Black gained two points in the centre (), but lost two points on the upper edge (, ). The result remains the same.