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Unsettled
  Difficulty: Beginner   Keywords: Life & Death

An unsettled shape is a shape whose life or death depends on sente.

[Diagram]
Diag.: Unsettled shape

Here is a pretty simple case of an unsettled shape. Whoever plays a first will win here (in a certain sense). If Black plays there, he'll live; if White plays there she'll kill Black.


[Diagram]
Diag.: Another unsettled shape

This is another simple shape which is unsettled.


[Diagram]
Diag.: White plays and wins

If White plays first, she plays 1, and her group is alive since a and b are miai.


[Diagram]
Diag.: White dies

If Black plays first, then White is killed by Black 3.



See also: unsettled three, status.



This is a copy of the living page "Unsettled" at Sensei's Library.
(OC) 2003 the Authors, published under the OpenContent License V1.0.