: ( 648qa)
Black connects in the upper right.

:
White pushes from above.

:
Black recaptures the ko.

:
White peeps in the left centre.

If she mistakenly played the atari at , instead, she would create an additional ko threat for winning the ko fight (giving atari at after ), but still lose one point overall.

:
White does not have any viable ko threat left. Therefore, she connects her stone in the upper right.

If she mistakenly played the atari at in the lower left corner, instead, she would win the ko fight, but still lose one point overall.

:
Black connects the ko.

We have reached the same position as in the subvariation six moves before ( 648qr).

The final scores of the game will become White + 2 / Black + 2