:: Igo Hatsuyôron 120 (2021)

Variations of Our Solution (IIIb)

Tricking KataGo (Triple-Ko)

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

: ( 222ku)
Black protects his territory in the left centre.

: (131 222kx)
White erases her weakness in the upper right corner.

She would like to stop Black from getting some additional points of territory at the top by occupying the point of herself. However, this alternative approach would cost her one point overall.

:
Black's descent to the upper edge is quite large.

Black must not play any reduction.

After her decision point White will block at at the upper edge.
In the Capture Variation, Black will occupy the point of in the right centre.

Capture Variation:

Compared to the superordinate variation ...

  • Black got an additional two points of territory in the upper left corner.
  • White captured Black's stone in the lower left corner, so gaining two points.

In total, gains and losses compensate for each other.

White + 6 => White + 6

Semeai Variation:

Compared to the superordinate variation ...

  • Black got an additional two points of territory in the upper left corner.
  • White captured Black's stone in the lower left corner, so gaining two points.

In total, gains and losses compensate for each other.

Jigo => Jigo

Copyright © 2021 Thomas Redecker.

Design by Jan van Rongen, modified by Thomas Redecker.

L e g a l   n o t i c e