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GiveMeLiberties

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TwoStoneEdgeSqueeze
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Race To Capture In The Corner
Path: GiveMeLiberties   · Prev: OldSemeai   · Next: BellyAttachment
    Keywords: Tactics

[Diagram]
Diag.: Corner problem

[Diagram]
Diag.: Race to capture

White 1 and 3 initiate a race to capture or semeai which she will win due to the special properties of the corner.


[Diagram]
Diag.: Continuation 1

[Diagram]
Diag.: Continuation 1

If Black now connects at a, we have a fight between a group with an eye and a group without eye (RichardHunter calls it a Type 3 fight in his work on CountingLiberties). There are no internal liberties. White has three outside (exclusive) liberties, Black too, but White is to play.


[Diagram]
Diag.: Continuation 2 (not good)

It is tempting to play shibori but it is wrong, again due to the special properties of the corner.


[Diagram]
Diag.: Continuation 2 (not good)

[Diagram]
Diag.: Continuation 2 (not good)

This is one possible continuation. It is a Type 3 fight again. Black has one exclusive liberty in the eye (marked stone captured) and counts the internal liberty at a as well as the approach liberties b and c. That's four liberties. White counts the circled liberties: he has three. So even if White starts now (at c for example) she loses the semeai, but Black has to answer.



Path: GiveMeLiberties   · Prev: OldSemeai   · Next: BellyAttachment
This is a copy of the living page "Race To Capture In The Corner" at Sensei's Library.
(OC) 2003 the Authors, published under the OpenContent License V1.0.