: ( 222nn)
Black secures profit at the upper edge.

:
White continues with the Main Semeai.

:
White plays KataGo's bad shape move in the upper left.

:
Black answers with KataGo's solid connection.

:
White could do without this push that costs her one tempo in the Main Semeai.

:
In principle, Black plays 1/1 reductions.

Taking profit outside the Main Semeai area will benefit him in the Semeai Variation.

Capture Variation:

Compared to the superordinate variation ...

• Black's cumulated gain at the upper edge is three points.
• White destroys two points of Black's territory in the left centre.
• White captured Black's stone in the lower right, so gaining two points.

In total, Black lost one point.

White + 1 => White + 2

Semeai Variation:

Compared to the superordinate variation ...

• Black's cumulated gain at the upper edge is three points.
• Black captured an additional two White stones in the left centre, so gaining two points.
• White captured one Black stone less in the lower right, so losing two points.

In total, Black gained seven points.

White + 1 => Black + 6