Final counting

Please explane me the final counting for the state on the picture. why the all blacks stones was declared as “deth”?

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Hi Alex,

Any fully surrounded group that does not have two eyes (or the ability to make two eyes) is a dead group. Neither of the black groups can make two eyes and they were therefore correctly marked dead.

On the left black can capture 2 white stones but is left with 2 points and no way to form two eyes. On the right white can first capture two black stones, the remaining black group then forms a squared four, which is a dead shape.

Two Eyes at Sensei’s Library (xmp.net)
Squared four at Sensei’s Library (xmp.net)

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Thank You!!!

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