: ( 58ar)
Black plays KataGo's solid connection, but this move comes too early here.

:
White takes the opportunity to connect her single stone in the right centre.

:
Black plays the descent to the upper edge, taking profit outside the Main Semeai area.

:
The Main Semeai continues.

Black must not play any reduction.

After her decision point, White will block at at the upper edge.

Capture Variation:

Compared to the superordinate variation, ...

• Black's cumulated gain in the left centre is three points.
• White got an additional point of territory at the upper edge.
• Black did not capture White's single stone in the right centre, so losing two points.
• White got an additional point of territory in the right centre.

In total, Black lost one point.

White + 1 => White + 2

Semeai Variation:

Compared to the superordinate variation, ...

• Black's cumulated gain in the left centre is three points.
• White got an additional point of territory at the upper edge.
• White captured one Black stone less in the upper right, so losing two points.
• White got an additional point of territory in the upper right corner.

In total, Black gained three points.

Black + 5 => Black + 8