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2007-02-19
Problem diagram.
Black's response to White's marked move?
Source:
Go World #37, Autumn 1984, p. 47
Nieh Wei-p'ing vs. Cho Chikun
Solution follows
(or click here to download SGF)
Inferior.
Playing at 1 makes the Black stones heavy.
After White 6, Black's 3 stones on the
left side will come under attack because
White's formation in the lower
left lies in wait. Also, White's
stones keep Black's moyo at
the top in check.
Conventional.
To avoid the above continuation, usually
Black would follow this sequence. Black
presses from the outside, leaving the
lone Black stone with aji.
Quite strange.
The game line.
Normally a pro would never think
of playing such a yielding move as 1.
Splitting Black up through 6 seems
too painful. But on the other hand,
surrounding the top with 7 might
be OK. If Black had played as in the
previous variation, White might have
been able to invade Black's upper
side more easily.
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