:: Igo Hatsuyôron 120 (2022)

Timing of the Guzumi Without

Harry's Hasami-Tsuke Sequence (2022)

VAR

: ( 1868)
White connects her two stones in the lower left.

: (A 1872)
Black defends indirectly against White's potential cut at .

With a higher reverse komi, KataGo favoured a direct protection with a move at .

:
White captures the nakade.

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

:
White's jump at the second line starts the reduction of Black's upper left corner.

:
Black connects his single stone at the upper edge.

:
The reduction of Black's corner territory continues.

:
White's hasami-tsuke starts the usual reduction of Black's lower left corner.

:
Black sacrifices a second stone for gaining a bit in the upper right corner.

:
White connects her single stone in the right centre.

:
KataGo's Bad-Shape Move in the left centre.

:
Black captures White's single stone in the upper left corner in return.

:
The mutual reduction of opponent's territories continues with this kikashi.

:
Black chooses KataGo's Solid Connection in the left centre.

///:

After Black filled White's five-point eye at the left edge with a third stone (), White will have to capture the hanezeki's tail with .

Otherwise, Black would connect at this point, and win the semeai with White's left-hand group.

After Black's move in the bamboo joint, White will capture with .

Capture Variation:

Compared to the superordinate variation, ...

  • Black's cumulated gain in the upper left corner is nine points.
  • White got an additional three points of territory at the top.
  • White's cumulated gain in the upper right corner is two points.
  • White did not capture one Black stone at the lower edge, so losing one point.
  • White's cumulated gain in the lower left corner is seven points.
  • White's cumulated gain in the nakade area is three points.

In total, White gained five points.

White + 1 => White + 6

Copyright © 2022 Thomas Redecker.

Design by Jan van Rongen, modified by Thomas Redecker.

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