:: Igo Hatsuyôron 120 (2021)

Variations of Our Solution (IIIb)

Tricking KataGo (Triple-Ko)

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

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

: ( 222ch)
Black cuts through at the top.

:
White gives atari at Black's two stones.

:
Black has to connect.

It is fruitless to give counter-atari, e.g. at , as Black will be unable to win the Central Semeai.

:
Black captures White's two stones at the top, securing some territory there.

:
White connects in the upper left corner, so capturing Black's cut-off stones without any ko fight.

:
The position in the upper left corner is settled, so Black starts the ensuing endgame with capturing White's single stone in the right centre.

We display one example out of a wide range of possibilities for the succeeding sequence.

:
White has to capture the nakade, in order to erase her potential shortage of liberties in the upper left.

If she did without, she would be unable to give atari at Black' cut-off stones with .

:
Again, White has to erase her potential shortage of liberties, related to an atari at .

:
It does not make sense for Black to fight the final endgame ko in the upper left corner, so White will connect there with .

White wins the game by 22 points.

Copyright © 2021 Thomas Redecker.

Design by Jan van Rongen, modified by Thomas Redecker.

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