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2007-06-18
Problem diagram.
Black plays.
Source:
American Go Journal , Vol. 17, No. 3, Sept 1982, cover problem
Solution follows
(or click here to download SGF)
Best
Black 1 creates an ideal double wing formation off of the
strong upper right corner. At the same time, Black 1 aims
at invading White's upper left formation at A or B.
For similar reasons, White would have liked to have played
at C before Black 1. The difference between Black 1 and
White C is enormous.
Second best
Black 1 solidifies the lower right corner, and aims at attacking
White's right side group or extending along the bottom. Black 1
is also big, but the Black play at the top is even bigger.
Third best
Although large, Black 1 does not have the territory making and
follow up potential as Black's other two moves. Any other Black
moves rank even lower.
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