: ( 730e)
White continues with the endgame in the lower left corner.

: (A 730g)
Black plays tenuki, in order to occupy the guzumi-point at the top right.

Black must not continue with the "usual" course of the endgame at the left side by continuing with a move at at the top left.

:
Black connects.

Black must not try living in the upper right, instead.
in response seems to be too large and might result in a White win by a small margin.

It results a change in the order of moves with the course of Our Solution ( 39).

Black will win the game by three points.