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LifeAndDeath

Referenced by
OldMetaDiscussion
KanazawaSolution32
Aug18Failure
KanazawaSolution42

 

Six Die But Eight Live
   

Six stones in a row on the second row die, but eight stones on a row live. Seven stones in a row depends on sente.

This applies to the life of a group which has no eyes and which has a solid row of connected stones on the second line. As long as the group is enclosed, the number of external liberties are irrelevant.

[Diagram]
Diag.: Eight stones live

Even if black has sente, white will end up with a straight-four nakade, which is alive. (the two 'x's are miai.)


[Diagram]
Diag.: Seven stones live with sente

With seven stones and sente, white also ends up with a straight-four nakade, which is alive. (the two 'x's are miai.)


[Diagram]
Diag.: Seven stones die with gote

With seven stones and gote, white ends up with a straight-three nakade, which is dead. After 5 white is dead.


[Diagram]
Diag.: Six stones die

With six stones, even with sente, white ends up with a straight-three nakade, which is dead. After 4 white is dead.

--MortenPahle



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