:: Igo Hatsuyôron 120 (2020)

Variations of Our Solution (IIIa)

No Early Kikashi

VAR (.1) (.2)

: ( 648ab)
White tries another preparation for her further actions below.

:
Black connects above.

:
White pushes from above.

: (124 648ai)
White's central attachment seems to be best here, in order to destroy Black's potential eye in the centre.

Playing Dany's atekomi at , instead, will be one point worse for her.

:
Please note that White's move does not lose a tempo in the Main Semeai, because it creates an approach-move liberty for her left-hand group.

:
Black's push at the top is no absolute sente.

, :
White's kikashi in the lower left corner threaten to kill Black's large group at the left.

:
White will be ahead in the Semeai Variation. Therefore, Black has to play his kikashi in the hanezeki "early".

...

Black plays 4/4 reductions.

Please assume the rejection of Dany's Sacrifice and Black's second kikashi in the hanezeki (, ) played before.

Capture Variation:

Compared to the superordinate variation ...

  • White lost one point of territory at the upper edge.
  • Black did not capture one White stone in the left centre.
  • Black lost one point of territory there.
  • White got two points of territory in the centre.
  • Black gained four points by destroying White territory at the right side of the board.

In total, White lost one point.

White + 2 => White + 1

Semeai Variation:

Compared to the superordinate variation ...

  • White lost one point of territory at the upper edge.
  • Black did not capture one White stone in the left centre.
  • Black lost one point of territory there.
  • White got two points of territory in the centre.
  • White lost an additional stone at the left, so losing two points.
  • White captures an additional three Black stones at the right, so gaining four points.

In total, White gained five points.

Black + 4 => White + 1

Copyright © 2020 Thomas Redecker.

Design by Jan van Rongen, modified by Thomas Redecker.

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