:: Igo Hatsuyôron 120 (2021)

Variations of Our Solution (IIIb)

Tricking KataGo (Triple-Ko)

VAR (C) (A) (.1)

: ( 222ns)
Black plays the kikashi of Michael Redmond in the bamboo joint.

:
White must choose the solid connection.

White is handicapped by the fact that her five -stones in the upper left corner are in atari. This implies that she must not lose any tempo in the Main Semeai.
Therefore, answering with the atari of is out of the question, because Black would capture at .

: (113 222nu)
Black must defend his territory in the upper left corner first; he descends to .

If he mistakenly played the atari at White's two stones in the lower left, instead, he would lose one point overall.

:
White defends her weakness in the upper right corner, also continuing with the Main Semeai.

:
Now, Black can give atari in the lower left.

: ( B 222nv)
White connects her single stone in the upper right.

She is unable to connect at , as Black would capture her five stones in the upper right immediately thereafter.
However, she would gain in the Semeai Variation, if she connected her five stones in the upper left first.

:
Saving her five stones in the upper left is sente for White, as Black has to defend against her throw-in at .

We have reached a change in the order of moves with an earlier subvariation ( 222my).


White will continue with the endgame in the lower left corner, and later play the wedge in the left centre.

The final scores of the game will become White + 4 / Black + 1.

Copyright © 2021 Thomas Redecker.

Design by Jan van Rongen, modified by Thomas Redecker.

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