:: Igo Hatsuyôron 120 (2021)

Variations of Our Solution (IIIb)

Tricking KataGo (Triple-Ko)

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

: ( 222ar)
White plays the wedge in the left centre.

Please note that this move is possible, even after Black captured her two stones in the lower left.

:
Black has to give atari from the outside.

:
White stops Black from getting any territory below.

:
Black must capture.

:
White gives atari for another time.

:
Black has to connect.

:
This is KataGo's bad-shape move.

:
Black has to defend this cutting point - sooner or later.

;
The Main Semeai continues.

Black must not play any reduction.

After her decision point, White will block at at the top.

Capture Variation:

Compared to the superordinate variation ...

  • White destroyed two points of Black's territory in the left centre.
  • Black captured a White stone there, so gaining one point.

In total, White gained one point.

Black + 1 => Jigo

Semeai Variation:

Compared to the superordinate variation ...

  • White destroyed two points of Black's territory in the left centre.
  • Black captured a White stone there, so gaining one point.
  • Black captured an additional White stone in the upper left, so gaining two points.

In total, White lost one point.

Black + 4 => Black + 5

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