: ( 648ms)
White blocks at the top.

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Black captures White's single stone at the upper edge.

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White plays her kikashi in the lower left corner, before ...

:
... blocking at the top.

; :
To simplify the presentation, we let each side connect one ko here.

Black plays 3/3 reductions.

Please assume Black's second kikashi in the hanezeki (, ) played before.

Later, White will play her kikashi , in the lower left corner, so that Black must capture at before the end of the game.

Capture Variation:

Compared to the superordinate variation ...

• Black's cumulated gain at the upper edge is two points.
• White got an additional point of territory at the top.
• Black's cumulated loss in the lower left corner is two points.
• Black did not destroy two points of White's territory at the top.
• White did not destroy one point of Black's territory in the upper left corner.
• White did not capture Black's stone in the lower right, so losing two points.

In total, gains and losses compensate for each other.

White + 1 => White + 1

Semeai Variation:

Compared to the superordinate variation ...

• Black's cumulated gain at the upper edge is two points.
• White got an additional point of territory at the top.
• Black's cumulated loss in the lower left corner is two points.
• White captured two Black stones less in the upper right, so losing two points.
• Black captured one White stone less in the upper left, but one additional stone in the lower left corner, for a cumulated gain of one point.
• White captured an additional Black stone in the lower right, gaining two points.

In total, gains and losses compensate for each other.

White + 1 => White + 1