:: Igo Hatsuyôron 120 (2020)

Variations of Our Solution (IIIa)

No Early Kikashi

VAR (.4)

: ( 648hq)
White blocks at the top.

:
Black captures White's single stone in the upper right in return, which is larger.

In principle, Black loses two Main Semeai Liberties by this move. But becomes an approach-move liberty of his group, so the net effect of this move is a loss of one Main Semeai Liberty.

:
White blocks at the upper edge.

:
Black connects.

Black plays 2/3 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 got an additional point of territory at the upper edge.
  • White got an additional point of territory at the top.
  • Black captured White's stone in the upper right, so gaining two points.
  • White did not get one point of territory in the right centre.

In total, White lost one point.

White + 1 => Jigo

Semeai Variation:

Compared to the superordinate variation ...

  • White got an additional point of territory at the upper edge.
  • White got an additional point of territory at the top.
  • White captured an additional Black stone in the upper right, so gaining two points.
  • White did not get one point of territory in the upper right corner.

In total, Black lost three points.

Black + 1=> Jigo

Copyright © 2020 Thomas Redecker.

Design by Jan van Rongen, modified by Thomas Redecker.

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