:: Igo Hatsuyôron 120 (2021)

Variations of Our Solution (IIIb)

Tricking KataGo (Triple-Ko)

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

(.2)

: ( 222ea)
Black gives atari at the upper edge.

:
White stops Black from cutting through at the top.

If she mistakenly connected at immediately, Black would cut through with , reverting to the superordinate variation.

:
Black has to secure an eye for his large group at the right, in order to avoid me-ari-me-nashi in the Central Semeai.

:
Now, White can securely connect.

:
White recaptures.

:
Black forces for another time at the right.

Immediately recapturing the ko with , instead, will not help either.


Ko: ; ; ; ;

:
The ko fight continues.

:
Black connects.

It will not benefit him to continue with the ko fight, instead.

:
White continues with the Central Semeai.

...

:
Black has to connect the hanezeki's tail now.

:
White occupies Black's last outside liberty.

Black is unable to give atari at , as White would capture the ko at the top with , and thereafter Black's large group at the right.
Black's connected group at the bottom is dead as well.

White will win the game by a very large margin

Copyright © 2021 Thomas Redecker.

Design by Jan van Rongen, modified by Thomas Redecker.

L e g a l   n o t i c e