: ( 222im)
Black extends at the left, denying White access to the left edge.

:
White cuts at the right, hoping to spoil Black's shape.

:
Black's second extension at the left destroys White's hopes for an eye in the corner.

:
White's block at the upper edge is sente now.

:
White connects her single stone in the right centre.

:
Blacks starts a tiny reduction of White's territory at the top.

Black plays 3/3 reductions.

Capture Variation:

Compared to the superordinate variation ...

• The cumulated effect of White's action in the upper left corner is zero points.
• At the top, one point of White's territory changed place, so the net effect is zero.

In total, gains and losses compensate for each other.

White + 2 => White + 2

Semeai Variation:

Compared to the superordinate variation ...

• The cumulated effect of White's action in the upper left corner is zero points.
• At the top, one point of White's territory changed place, so the net effect is zero.

In total, gains and losses compensate for each other.

Black + 3 => Black + 3