:: Igo Hatsuyôron 120 (2021)

Variations of Our Solution (IIIb)

Tricking KataGo (Triple-Ko)

VAR (C) (A)

: ( 222aa)
White captures the hanezeki's tail.

:
Black recaptures, as usual.

:
The dissolving of the hanezeki follows.

:
White uses her sente to reduce Black's territory in the upper left.

:
The endgame continues in the lower left corner.

; :
Both sides connect one ko each.

:
Black does not fight the ko in the upper right corner.
White has several ko threats in the upper left corner, starting with , and so would win that ko fight anyway.

:
Black has to defend in the upper left.

:
White connects the final ko.

Capture Variation:

Compared to the super²ordinate variation ...

  • White's cumulated gain in the upper left corner is ten points.
  • Black's cumulated gain at the top and at the right is thirteen points.
  • White destroyed two points of Black's territory in the left centre.
  • White did not capture Black's stone in the lower left, so losing two points.
  • White's cumulated gain in the lower left is seven points.
  • White's cumulated loss in the hanezeki is six points.

In total, White lost two points.

White + 2 => Jigo

Copyright © 2021 Thomas Redecker.

Design by Jan van Rongen, modified by Thomas Redecker.

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