:: Igo Hatsuyôron 120 (2021)

Variations of Our Solution (IIIb)

Tricking KataGo (Triple-Ko)

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

: ( 222gi)
Black closes the border of his upper left corner to the right.

:
White attacks by jumping to the second line inside Black's corner.

: ( 105 222gk)
Black immediately defends his cutting point to the right with the diagonal move at .

Pushing with at the left, instead, will gain one point overall, but cannot prevent the forthcoming disaster.

:
White is forced to connect.

:
Black's push at the left intends to increase Black's eye space in the corner, while reducing White's.

; :
These two moves are miai.

:
Black secures an eye at the right.

:
White's descent is sente.

:
White's corner group has an eye, too.

:
Black's hane is forced.

:
White's throw-in will cause Black problems with approaching White's group from the left.

:
White's push at the left edge stops Black from creating a second eye for his corner group.

:
The Main Semeai continues.

Black must not play any reduction.

:
After her decision point, White will occupy the last but one outside liberty of Black's group in the upper left, turning the position into a seki. Neither side should play at .
Please note that Black has occupied White's liberties at the left in the meantime.

:
Black takes the large endgame point at the lower edge.

:
White defends her territory at the top eventually.

White will win the game by 13 points.

Copyright © 2021 Thomas Redecker.

Design by Jan van Rongen, modified by Thomas Redecker.

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