Variations of Our Solution (I)
VAR
(.1)
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(Referenced by
We have adjusted the course of sub-variations here according to our latest insights into this position, so that the main line includes the "correct" sequence now. |
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In principle, this will enable her (but only in the case of an "early" ko-semeai that is shown hereafter) to successfully make a protective move on the left side later, depriving Black of most of his ko-threats there. This will help White to shorten the sequence. Please note that White needs two moves - not only one - to erase all of Black's potential ko-threats in the nakade. Therefore, in the case of a "late" ko-semeai, White must not waste her just won liberty for a move on the left side of the board. As with the main line of Joachim's Ko-Semeai, blocking directly from above with a move at |
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(102 (A |
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Ko: |
(104 Black might do without the cut at |
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Ko: |
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826
133
(= 
: (A
142
.
:
,
,
,
). White has four outside liberties, but there is the cutting point of
, which allows Black to take an internal liberty in sente. This means that there are three effective outside liberties for White, so
,
,
, in following the main line of Joachim's idea of a new semeai (
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: (A
into the corner with the restrained move at
and
now, instead of
before.
, instead, does not work for Black. There are also further sub-variations on this topic (
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-group has been reduced to only five liberties before.
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: (A
, instead, will become even worse. White will be forced to answer at
. The result will not become worse for him.
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;
;
; 
: (A
, in the hanezeki, achieving a similar result.
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