:: Igo Hatsuyôron 120 (2021)

Variations of Our Solution (IIIb)

Tricking KataGo (Triple-Ko)

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

: ( 222ik)
White attacks Black's upper left corner by jumping to the second line.

: (119 222in ; 120 222io)
Black's diagonal move protects his cutting point to the right.

Alternatively, Black might consider pushing to immediately, or attaching in the corner with the jump to . The final scores of the game will remain unaffected.

:
Black has established a sure eye at the left edge.

: (A 222ip)
White connects her single stone in the upper right.

Throwing-in with in the upper left corner would not affect the overall result of the game, but benefit Black by one point in the Semeai Variation.

:
Black starts the reduction of White's territory at the top.

:
Black has to play a protective move inside his territory, after he lost his last outside liberty.

Black plays 3/3 reductions.

Capture Variation:

Compared to the superordinate variation ...

  • White's cumulated gain in the upper left corner is one point.
  • White got an additional point of territory in the upper right corner.

In total, White gained two points.

Jigo => White + 2

Semeai Variation:

Compared to the superordinate variation ...

  • White's cumulated gain in the upper left corner is one point.
  • White captured one Black stone less in the upper right corner, so losing one point.

In total, gains and losses compensate for each other.

Black + 3 => Black + 3

Copyright © 2021 Thomas Redecker.

Design by Jan van Rongen, modified by Thomas Redecker.

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