:: Igo Hatsuyôron 120 (2021)

Variations of Our Solution (IIIb)

Tricking KataGo (Triple-Ko)

VAR (C) (A) (.2) (.2) (.2)

: ( 222bc)
White connects her single stone at the upper edge.

This move gains profit outside the Main Semeai area, and so will benefit White in the Semeai Variation, compared to the connection at in the previous subvariation.

:
White lost one tempo in the Main Semeai by her previous move, so Black's push at the top is sente.

:
White has to block.

: ( 120 222bn)
Black captures White's two stones in the lower left here.

However, as we now know, pushing with in the upper right would have been one point better overall.

:
White defends her territory in the guzumi area, also continuing with the Main Semeai.

...

Black plays 1/1 reduction.

Capture Variation:

Compared to the superordinate variation ...

  • Black destroyed one point of White's territory in the upper right corner.

White + 3 => White + 2

Semeai Variation:

Compared to the superordinate variation ...

  • White captured an additional Black stone in the upper right, so gaining one point.

Jigo => White + 1

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