GokyoShumyoSection4Problem20/Attempts

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After , White's group has four liberties to Black's five.

After , Black cannot play at a due to a shortage of liberties. After , White is ahead by one liberty.

Black and White have the same number of libetrys now. But Black cannot play the atari in the end, because a shortage of libertys.

The technique of is used in a variation of the large avalanche joseki, demonstrating why white shouldn't play this way because of the remaining aji:

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GokyoShumyoSection4Problem20/Attempts last edited by Endo on February 7, 2011 - 11:34