:: Igo Hatsuyôron 120 (2022)

New Story Line 2022

Yamada Shinji's Tsuke

VAR

: ( 2037)
Black is unable to resist; intending to capture White's just played stone is a grave mistake.

:
White prevents her pivotal tsuke stone from becoming captured.

We follow the sequence that has been shown to us by Yamada Shinji.

: (A 2037b)
Black secures the connection of his stones.

KataGo recommends defending territory in the corner, instead, starting with the attachment at .

:
White intends to enlarge her eye space at the top.

:
White's throw-in makes use of the special properties of the corner, creating a shortage of liberties for Black at the left edge.

:
Black's group has a sure eye now.

:
Black cannot rob White's group her eye at the upper edge.

:
Black ends in gote.

:
White continues with the endgame in the lower left corner.

:
Black plays Jérôme Hubert's Solid Connection here, as there is no profitable alternative available.

:
Cheng's Bump in the left centre.

:
White creates one point of territory in the right centre.

:
Black simply connects.

Trying to start an approach-move ko by playing the hane of , instead, is love's labour lost. Black would still be unable to capture White's stones in the upper left corner.

:
The upper left corner is seki.

White will later capture at to gain an additional prisoner.

Capture Variation:

Compared to the superordinate variation, ...

  • White's cumulated gain in the upper left corner is 18 points.
  • Black's cumulated gain at the top is one point.
  • White did not capture Black's stone in the lower left corner, so losing two points.

In total, Black lost 15 points.

White + 3 => White + 18

2037

Copyright © 2022 Thomas Redecker.

Design by Jan van Rongen, modified by Thomas Redecker.

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