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  2007-12-31

Problem diagram.
White plays.

Source:
Go World #38, Winter 1984-85, p. 42
Basic Fighting Techniques

Solution follows    (or click here to download SGF)






























Misses a famous tesuji.
At first glance, White 1 seems to easily kill Black. But Black 2 gives White a nasty surprise. This well-known, but surprising, tesuji occurs in numerous situations. White, who is in a shortage of liberties, has to make 2 moves to capture Black's single stone throw-in. Black can use that extra move to win the semeai through 6.


Correct.
But White 1 is a resource that Black has no answer for. Black cannot stop White's throw in at 3 to force a ko.


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