:: Igo Hatsuyôron 120 (2021)

Variations of Our Solution (IIIb)

Tricking KataGo (Triple-Ko)

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

: ( 222ob)
White occupies the guzumi point.

: (A 222od)
Michael Redmond's kikashi in the bamboo joint comes too late now.

Black will also end in a disaster, if he enters the path to Joachim's Ko-Semeai, instead.

: (B 222oh)
White answers with the solid connection.

Choosing the atari at , instead, might be considered being a technical mistake - in principle. White will be much better than in the solution, but Black will gain a countable result, at least.

:
Black continues with the Main Semeai, giving atari at White's too stones in the lower left.

:
White does not connect her stones, in order to keep Black below the Punishment Semeai Liberty Level.

:
Sooner or later, Black will play this descent to the left edge.

:
This enables White to connect her five stones in sente, threatening to throw-in at .

:
Black has to reinforce his corner.

:
White continues with occupying Black's liberties.

At the moment of White's decision point, Black's large group will have only six direct liberties ().
White will choose the Capture Variation, and win the Punishment Semeai.

White will win the game by a large margin.

Copyright © 2021 Thomas Redecker.

Design by Jan van Rongen, modified by Thomas Redecker.

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