:: Igo Hatsuyôron 120 (2021)

Variations of Our Solution (Ib)

KataGo's 2021 Solution

VAR (.3) (.3)

: ( 58by)
White connects her two stones in the lower left.

:
Black captures White's stone in the upper right.

:
White plays KataGo's bad-shape move in the left centre.

Please note that the central attachment of does not work here, as Black would answer with from above.

:
Black answers with KataGo's solid connection.

:
The Main Semeai continues.

Black plays 3/3 reductions.

Capture Variation:

Compared to the superordinate variation, ...

  • Black got an additional point of territory in the lower left corner.
  • Black did not capture White's two stones in the lower left, so losing four points.
  • Black captured White's stone in the upper right, so gaining two points.
  • Black destroyed one point of White's territory in the upper right corner.

In total, gains and losses compensate for each other.

White + 1 => White + 1

Semeai Variation:

Compared to the superordinate variation, ...

  • Black captured one White stone less in the lower left corner, so losing one point.
  • White captured one Black stone more in the upper right corner, so gaining one point.
  • Black destroyed one point of White's territory in the upper right corner.

In total, White gained one point.

Jigo => White + 1

Copyright © 2021 Thomas Redecker.

Design by Jan van Rongen, modified by Thomas Redecker.

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