:: Igo Hatsuyôron 120 (2022)

New Story Line 2022

Yamada Shinji's Tsuke

VAR

: ( 2037)
Once the lower border of Black's upper left corner has been settled (), KataGo's Immediate Crosscut does not work any longer, as we will see below.

:
Black is able to give atari from the outside.

:
White gives counter-atari.

:
Black connects.

:
A second atari in the corner, but which will not help.

:
Now, Black captures White's pivotal tsuke stone.

:
White starts a semeai between her stones in the corner and Black's stones at the upper edge, but which she will lose.

:
KataGo descends to the upper edge here, choosing a simple line of play.

A White hane at , instead, would be more aggressive, but not lead to success either, due to Black's solid wall below.

:
Finally, Black captures White's intruders.

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

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

:
Cheng's Bump in the left centre.

:
White takes the last valuable point on the board.

Capture Variation:

Compared to the superordinate variation, ...

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

In total, White lost five points.

White + 3 => Black + 2

2037

Copyright © 2022 Thomas Redecker.

Design by Jan van Rongen, modified by Thomas Redecker.

L e g a l   n o t i c e