:: Igo Hatsuyôron 120 (2021)

Variations of Our Solution (IIIb)

Tricking KataGo (Triple-Ko)

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

(.1)

: ( 222bv)
Black connects his troops in a somewhat indirect manner, while simulateously threatening White's territory at the top.

:
White pushes once at the top, in sente, reducing Black's group to only one eye.

:
Thereafter, she gives atari at the left edge.

:
White's peep at the first line prepares for an eye in the corner.

:
Black is able to play his push at the top as a kikashi.

:
White is forced to connect.

:
Both sides have one eye each in the upper left corner.

:
White settles the shape at the upper edge in sente.

:
Black gives atari at the top.

:
White is forced to connect, so losing one point of territory.

:
Black closes his upper left corner.

:
White protects her weakness in the guzumi area.

:
White must start the endgame on the left side of the board "early".

Black plays 1/1 reduction.

The exchange in the upper left corner is necessary to settle the shape for seki.

Capture Variation:

Compared to the super²ordinate variation ...

  • White's cumulated gain in the upper left corner is 21 points.
  • Black's cumulated gain at the top is nine points.
  • Black destroyed one point of White's territory in the upper right corner.

In total, White gained eleven points.

Jigo => White + 11

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