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Six Die But Eight Live
Path: GoProverbs   · Prev: LearnTheEyestealingTesuji   · Next: FourDieButSixLive
Path: LifeAndDeath   · Prev: SquareNineInTheCorner   · Next: FourDieButSixLive

   

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 big eye, 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 big eye, 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 big eye. After 5 white is dead.


[Diagram]
Diag.: Six stones die

With six stones, even with sente, white ends up with a straight-three big eye. After 4 white is dead. --MortenPahle



But there is a condition that white will live.

[Diagram]
Diag.: Six stones's condition

Under the condition that white have stones in a and b, if white plays first, white will live. If black plays first, white will live with a Ko fight.


[Diagram]
Diag.: Black first=>white live with a Ko fight.

by ChihChan



Path: GoProverbs   · Prev: LearnTheEyestealingTesuji   · Next: FourDieButSixLive
Path: LifeAndDeath   · Prev: SquareNineInTheCorner   · Next: FourDieButSixLive

This is a copy of the living page "Six Die But Eight Live" at Sensei's Library.
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