:: Igo Hatsuyôron 120 (2021)

Variations of Our Solution (Ib)

KataGo's 2021 Solution

VAR (.3) (.3)

: ( 58by)
Black captures White's two stones in the lower left.

:
White connects in the upper left corner.

:
Black captures White's single stone in the right centre.

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

:
Black answers with the solid connection.

:
The Main Semeai continues.

Black plays 1/4 reductions.

If Black played 4/4 reductions, the final scores would become Black + 1/ White + 5.

Capture Variation:

Compared to the superordinate variation, ...

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

In total, Black lost one point.

White + 1 => White + 2

Semeai Variation:

At the moment of White's decision point, Black's large group at the right will have ten liberties (), making it impossible for White to capture this group.

Black will win the game by a large margin.

Copyright © 2021 Thomas Redecker.

Design by Jan van Rongen, modified by Thomas Redecker.

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