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2008-05-26
Problem diagram.
White's response to Black's marked play?
Source:
Special Game Commentary
Hashimoto vs. Tono
Go World #1, May-June 1977, pp. 39-40
Solution follows
(or click here to download SGF)
Wrong direction.
White 1 ignores the most important left side.
Black 2, ignoring White's approach play, simultaneously
takes advantage of his thickness below, and supports
his upper left stone. Black has an ideal shape.
Correct direction, wrong point.
Taking the point that your opponent wants is often good.
White 1 does that, but Black can now make the perfect 2
point extension, after which White's 3 point extension
looks too thin.
Wrong point again.
White 1 is just a little too far from the White stone in the lower left.
With this standard sequence through 4, Black takes the good
pincer point that perfectly balances the needs of the top
and bottom positions.
Correct.
White 1 is the Goldilocks Move, i.e., just the right balance
between the top and bottom positions.
Now a Black pincer at 4 is too narrow to make efficient use
of the wall below.
For example, if later White cuts at 5,
Black builds good thickness through 9, but Black's pincer
doesn't make the maximum efficiency with the lower wall.
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