:: Igo Hatsuyôron 120 (2021)

Variations of Our Solution (IIIb)

Tricking KataGo (Triple-Ko)

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

: ( 222fo)
Black jumps to the first line.

:
White pushes at the second line, creating some cutting points for Black at the edge.

:
Black's push at the top is a nice try, but ...

:
... White simply blocks.

:
Thereafter, Black gives atari at White's stones in his corner.

:
White captures the ko in the corner.

Black has already fallen below the Punishment Semeai Liberty Level, so she could continue with immediately.

:
Black has to connect, he must not let White capture a second stone in the corner.

:
White continues with occupying Black's liberties at the right.

Her manoeuvre in the corner created another approach-move liberties for her left-hand group.

White's group has two approach-move liberties now ().
Black must take White's group in his corner really off the board, before he can safely occupy White's liberties in the upper left.

Therefore, at the moment of White's decision point, Black's large group at the right will have five direct liberties () only. White will win the Punishment Semeai with ease.

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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