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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.
Even if black has sente, white will end up with a straight-four nakade, which is alive. (the two 'x's are miai.)
With seven stones and sente, white also ends up with a straight-four nakade, which is alive. (the two 'x's are miai.)
With seven stones and gote, white ends up with a straight-three nakade, which is dead. After 5 white is dead.
With six stones, even with sente, white ends up with a straight-three nakade, which is dead. After 4 white is dead. This is a copy of the living page "Six Die But Eight Live" at Sensei's Library. (C) the Authors, published under the OpenContent License V1.0. |