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2008-03-31
Problem diagram.
Black plays.
Source:
Tesuji Dictionary, Vol. 1, Hasami-tsuke #4,
Segoe Kensaku & Go Seigen, Ishi Press
Solution follows
(or click here to download SGF)
Correct.
Black 1 is the only move! Black 3 is another good move.
White 4 appears to connect to the 3 corner stones.
Black 5 is at 7.
But after a couple throw-ins,
Black has a snapback to form the 2nd eye.
Black variation.
Black 3 is a mistake. After White 4,
Black has a dead shape in the corner.
Failure.
Black 1 looks good ... right up until White plays at 2.
Black can make an eye by capturing either the 3-stone group
on the left or the 2-stone group on the right, but not both!
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