:: Igo Hatsuyôron 120 (2020)

Variations of Our Solution (IIIa)

No Early Kikashi

VAR (.1) (.3) (.2)

: ( 648fq)
White connects in the lower left, denying playing Dany's Sacrifice.
Please note that this move loses two moves in the Main Semeai.

:
Black plays KataGo's solid connection.

:
White connects her single stone at the upper edge.

:
The Main Semeai continues.

Black plays 2/4 reductions.

With 4/4 reductions, the final scores would be Black + 1 / White + 4.

White will start the Semeai Variation by he kikashi of , , but which does not really matter here.

Capture Variation:

Compared to the superordinate variation ...

  • Black got one point of territory in the left centre.
  • White did not get any territory there, so losing two points.
  • White did not capture Black's stone in the lower right, so losing two points.
  • Black did not capture White's two stones in the lower right, so losing four points.

In total, White lost one point.

White + 2 => White + 1

Semeai Variation:

At White's decision point, Black's large group in the upper right will have nine liberties, eight direct ones (), and one approach-move liberty ().
White on her side will suffer from the final ko in the upper right centre - found by Joachim ( 648ag) - that depends on the existence of two White cutting points in the centre (), and Black's large ko threat at at the top.
Black's large group in the upper right will not survive the semeai, but Black will capture White's wC-stones in the upper left, and win by about 15 points.

Black will win the game by a large margin.

Copyright © 2020 Thomas Redecker.

Design by Jan van Rongen, modified by Thomas Redecker.

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