: ( 548kk)
Connecting White's single stone at the upper edge comes too early.

, :
Black will gain in the Capture Variation by collecting an additional prisoner.

:
The Main Semeai continues.

:
Black is able to destroy an additional point of White territory.

Capture Variation:

Compared to the superordinate variation, ...

• White gained two points at the upper edge.
• Black destroyed one point of White territory in the upper right corner.
• Black gained two points by capturing White's single stone in the top right.
• White did not get one point of territory in the centre.

In total, White lost two points.

White + 2 => Jigo

Semeai Variation:

Compared to the superordinate variation, ...

• White gained two points at the upper edge.
• White captured an additional Black stone in the upper right corner.
• White gained two points by capturing Black's additional stone in the centre.
• White did not get one point of territory in the upper right corner.

In total, White gained four points.

Black + 4 => Jigo