:: Igo Hatsuyôron 120 (2021)

Variations of Our Solution (IIIb)

Tricking KataGo (Triple-Ko)

VAR (C) (A) (.4)

: ( 222jd)
Black plays Michael Redmond's kikashi 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 .

:
Black has to defend in the upper right corner first.

If he played atari at , for example, White would connect her five stones in sente, and thereafter push at herself. Black would have lost two points unnecessarily.,

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


Black gives atari at White's two stones in the lower left, so continuing with the Main Semeai.

:
White continues with the Main Semeai.

She is unable to connect at , as Black would capture her five stones in the upper right immediately thereafter.

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

:
Black reinforces his upper left corner.

Alternatively, he could have also connected at .

In principle, 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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