:: Igo Hatsuyôron 120 (2021)

Variations of Our Solution (IIIb)

Tricking KataGo (Triple-Ko)

VAR (C) (A) (.2) (.2) (.1)

(.1) (.1) (.1)

(Referenced by 222cw)


: ( 222cg)
Black captures White's stone in the right centre, so providing his group with an eye.


Ko:

:
White recaptures the ko.

:
Black gives atari at White's upper string of her left-hand group.

:
It is best for White to capture the nakade.

:
Here, Black inserts a kikashi first.

He might even play at immediately, not affecting the final score of the game.

:
Black gives atari at the left for another time.

:
White is forced to capture the hanezeki's tail.

:
Black recaptures, as usual.

:
White's atari terminates the ko fight in the upper left corner.

:
Black's descent to the lower edge starts the succeeding endgame.

:
White captures in the upper left.

She will win the final endgame ko, and connect at .

Capture Variation:

Compared to the superordinate variation ...

  • White captures Black's cut-off stones in the upper left corner, so gaining 16 points.
  • Black's cumulated gain in the lower left corner is four points.
  • Black's cumulated gain in the nakade area is six points.
  • Black destroyed five points of White's territory in the upper right corner.
  • Black's cumulated gain in the right centre is four points.
  • White did not capture Black's stone in the lower right, so losing two points.

In total, White lost one point.

White + 7 => White + 6

Copyright © 2021 Thomas Redecker.

Design by Jan van Rongen, modified by Thomas Redecker.

L e g a l   n o t i c e