:: Igo Hatsuyôron 120 (2021)

Variations of Our Solution (IIIb)

Tricking KataGo (Triple-Ko)

VAR (C) (A)

: ( 222nb)
White connects her two stones in the lower left.

: (A 222no)
Black captures White's single stone in the upper right.

He would lose two points overall, if he occupied the large endgame point of , instead.

:
White secures two eyes for her central group.

: (124 222np)
Black continues with the Main Semeai.

Even now, he would lose one point overall, if he occupied the large endgame point of , instead.

:
White takes profit outside the Main Semeai area, which will benefit her in the Semeai Variation.

Black plays 2/2 reductions.

Before the end of the game, Black will have to connect at .

Capture Variation:

Compared to the superordinate variation ...

  • Black did not capture White's two stones in the lower left, so losing four points.
  • Black captured White's single stone in the upper right, so gaining two points.
  • White lost one point of territory in the centre.
  • White did not capture Black's stone in the lower right, so losing two points.

In total, White lost one point.

White + 2 => White + 1

Semeai Variation:

Compared to the superordinate variation ...

  • Black captured an additional White stone at the left, so gaining two points.
  • White captured an additional two White stones at the right, so gaining four points.
  • White lost one point of territory in the upper right corner.

In total, White gained one point.

Jigo => White + 1

Copyright © 2021 Thomas Redecker.

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