:: Igo Hatsuyôron 120 (2021)

Variations of Our Solution (IIIb)

Tricking KataGo (Triple-Ko)

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

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

: ( 222cr)
Black connects in the centre, creating a three-point eye.

:
White prepares for an additional ko threat in the hanezeki.

:
White arms the ko fight in the upper left corner.

:
White captures the nakade, in order to weaken Black's prospects for viable ko threats at the left side of the board.

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White recaptures.

:
Black captures in the corner, so starting the final ko fight there.

:
This is White's aforementioned ko threat in the hanezeki.


:
Black aims at creating a White shortage of liberties, making it impossble for her to occupy the point of above.

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White ignores Black's ko threat at the bottom, in order to occupy a liberty of Black's large group at the right.

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Black reduces White's bottom group to only one eye, so initiating the Bottom Semeai.

:
In between, White forces in the upper right corner.

:
Black captures the ko.

:
Black connects the ko, so turning the upper left corner into a seki.

:
White plays this protective move at the left edge, pre-empting a Black oki at , which would result in a seki at the left edge.

:
Black connects the hanezeki's tail, so starting the Semeai Variation.

Please note that White's bottom group is much smaller than her group at the left edge, so she will gain here.

:
Black's connection terminates the endgame.

Eventually, he will capture White's bottom group, while White will take Black's large group at the right off the board.

White wins the game by ten points.

Copyright © 2021 Thomas Redecker.

Design by Jan van Rongen, modified by Thomas Redecker.

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