:: Igo Hatsuyôron 120 (2022)

Timing of the Guzumi (2022)

VAR

: ( 1813)
Black plays my Guzumi.

We inserted this move manually.

:
KataGo favours immediately blocking the path of the hanezeki's tail.

:
Black is forced to capture White's single stone in the upper right, securing independent life for his large group.

:
White makes sure that her stones at the left cannot be captured easily.

:
Black starts saving his nakade stones.

:
Here, KataGo prefers the enhancement of Black's position in the upper left centre over the atari at in the Nakade Area.

:
White continues at the upper edge, capturing Black's single stone there.

:
Black starts a series of forcing moves at the left edge ...

:
... and at the top, ...

:
... before blocking his upper left corner.

:
White attacks Black's potential territory in the lower left corner.

:
Here, Black cuts in the corner, capturing White's single stone there.

It seems that White's earlier block at made the bottom area a bit less attractive.

:
Now, Black saves his single stone in atari.

:
White starts the settling of the border around Black's upper left corner.

:
White's hane at the left edge aims at creating a ko-shape there, while reducing Black's territory a bit.

:
White closes her territory at the top.

:
Black starts the rescue of his single stone in the left centre, which will become kind of no-mans land.

:
White's atari in the Guzumi Area could be played at any time, in principle.


Ko:

:
Black's wedge aims at the reduction of White's potential territory at the top.

:
Black connects, preventing White from playing a throw-in at the same point, which would start a ko-fight.

; :
Black utilises the sacrifice of his earlier played wedge at well.

:
Black erases another potential ko-fight, starting the mutual reduction of opponent's territory in the lower left centre.

:
Black starts a short ko-fight at the left edge.

:
The small endgame continues with Black's connection in the upper left.

Territory:

Black:

  • 18 points in the upper left corner.
  • Three points in the upper right.
  • One point in the left centre.
  • 15 points in the lower left corner.

= 37 points in total.

White:

  • Two points in the hanezeki.
  • Three points at the left side.
  • Ten points at the lower edge.
  • 13 points at the top.
  • Eleven points in the upper right corner.

= 39 points in total on the board.

White wins the game by three points.

Copyright © 2022 Thomas Redecker.

Design by Jan van Rongen, modified by Thomas Redecker.

L e g a l   n o t i c e