(Referenced by 648qk)

: ( 648qe)
Black connects the ko.

:
White connects in the upper left corner, securing an eye for her group.

:
Black reduces the size of White's eye.

KataGo favours a move at , instead, but which results in a loss of two points. Please refer to the other line of White's play in the upper left corner for details ( 648qk).

:
White connects her corner stones, turning the upper left corner into a seki.

:
Black starts reducing White's territory in the upper right.

:
The Main Semeai continues.

In order to keep the seki in the upper left corner, White will choose the Capture Variation with a move at later.

In the upper left corner, Black and White might capture one opponent's stone each, with and , but not affecting the result of the game.

Capture Variation:

Compared to the superordinate variation ...

• Black's cumulated gain in the left centre is two points.
• Black's cumulated gain in the lower left corner is one point.
• White's cumulated gain in the upper left corner is 16 points.
• White destroyed one point of Black's territory in the right centre.
• White did not capture Black's stone in the lower right, so losing two points.

In total, Black lost twelve points.

White + 2 => White + 14