: ( 648db)
White connects the ko in the left centre.

:
Black captures White's single stone at the upper edge.

:
White must play her kikashi in the hanezeki; otherwise, Black will gain by playing his gote atari at .

:
White is able to block.

:
Black connects.

:
The Main Semeai continues.

Black plays 0/1 reduction.

Capture Variation:

Compared to the superordinate variation ...

• Black's cumulated gain at the upper edge is two points.
• Black did not capture one White stone in the left centre, so losing one point.
• Black did not get any territory there, so losing one point.

In total, gains and losses compensate for each other.

Black + 4 => Black + 4

Semeai Variation:

Compared to the superordinate variation ...

• Black's cumulated gain at the upper edge is two points.
• Black did not capture one White stone in the left centre, so losing one point.
• Black did not get any territory there, so losing one point.

In total, gains and losses compensate for each other.

White + 2 => White + 2