: ( 58do)
Black pushed into White's potential territory in the upper right corner.

:
White blocks, as a matter of course.

:
Now, being par with the Punishment Semeai Liberty Level, Black is forced to strictly follow the Main Semeai.

:
White also continues with occupying liberties, patiently waiting for the optimal moment to counter Black's reduction of her territory.

:
White erases her last weakness in the upper right.

:
Black is unable to cover both open weaknesses in his lower left corner in only one move.

:
White destroys one point of Black's potential corner territory at the latest possible moment, so compensating for the effect of Black's initial move in this subvariation.

Black plays 0/1 reduction.

Capture Variation:

Compared to the superordinate variation, ...

• White destroyed one point of Black's territory in the lower left corner.
• 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, ...

• Black captured one White stone more in the lower left corner, so gaining one point.
• White captured one Black stone more in the upper right corner, so gaining one point.

In total, gains and losses compensate for each other.

Jigo => Jigo