: ( 648nf)
Black pushes from the right.

:
White's move in the corner is atari at Black's stones at the top, so he has to capture with .

: (180 648nh; A 648ni)
Black plays hane at the upper edge.

He must neither play at the other 1-2-point in the corner nor hane at .

(A 648nj)
White descends to the left edge.

She might also play one point below, achieving the same result as here.

:
Black connects at the left edge occupying the vital point.
The upper left corner is a seki now.

He will not give atari with above, because he will be unable to win the subsequent ko fight.

White will win the game by over 10 points