: ( 58ce)
Black connects below.

:
It is best for Black to destroy White's potential territory in the centre.

:
White plays KataGo's bad-shape move in the left centre, destroying Black's potential territory there.

:
The Main Semeai continues.

Black plays 3/3 reductions.

Capture Variation:

Compared to the superordinate variation, ...

• White destroyed two points of Black's territory in the left centre.
• Black's cumulated gain in the lower left corner is one point.
• Black destroyed one point of White's territory in the upper right corner.

In total, gains and losses compensate for each other.

White + 2 => White + 2

Semeai Variation:

Compared to the superordinate variation, ...

• White destroyed two points of Black's territory in the left centre.
• Black's cumulated gain in the lower left corner is one point.
• Black captured one White stone more in the left centre, so gaining two points.
• White captured one Black stone more in the upper right corner, so gaining one point.

In total, gains and losses compensate for each other.

White + 2 => White + 2