:: Igo Hatsuyôron 120 (2021)

Variations of Our Solution (IIIb)

Tricking KataGo (Triple-Ko)

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

(.1) (.2)

: ( 222dd)
Black plays the push at the top, intending to fight the Central Semeai.

:
White bumps at the upper edge.

:
Black pushes for a second time, also giving atar at White's three stones below.

:
White is forced to connect.

:
As usual, Black creastes a false eye for White, in sente.

:
Black's wedge at the top aims at spoiling White's shape in that area.

:
The mutual occupation of opponent's liberties starts.

:
Please note that this move inside the hanezeki increases the Punishment Semeai Liberty Level by one.

:
After this move, Black's group has only seven liberties left. The time has come when Black would be forced to connect the hanezeki's tail, in order to avoid the Punishment Semeai.

However, Black's large group at the right has only two external liberties (), while five liberties () are shared with White's centre group.

The position between these two groups is a seki.
But White will be able to take Black's connected bottom group off the board, starting with .

White will win the game by a very large margin.

Copyright © 2021 Thomas Redecker.

Design by Jan van Rongen, modified by Thomas Redecker.

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