Side pattern - K versus pT

  Difficulty: Expert   Keywords: Opening

This is a pattern mentioned at Shin fuseki, as representing one of the classical ideas.

[Diagram]
Game start  

These plays could be B1 and W2, starting a whole game.



The motivation for W2 in the old days would have been to make Black's task harder.

Black now can't claim an obvious plan for this side. Black at a is an enclosure for playing on the large scale. Black at b will be met by some joseki of White's choice.

[Diagram]
For example ...  

If for example Black does approach immediately at b, and we assume this joseki result, Black will emerge with sente.



A black play to make an enclosure at one of the marked points seems to some extent already negated by White's influence.

[Diagram]
Black encloses  

Assuming black+circle first, White's enclosure at the square-marked point is a big point.



It doesn't however feel very urgent. A black play there doesn't co-ordinate well with black+circle.


[Diagram]
Against the Shusaku?  

In classical games W1 might well have been W4 in a Shusaku fuseki.



Black's answer at B2 is in the traditional style, placing high value on the corners.

[Diagram]
White negates the pincer  

White can effectively force this joseki result.



Now it is a black pincer at one of the circle-marked points that seems poorly co-ordinated. That's because Black is low to the right. Possession of the square-marked point now seems very important. The two marked areas are like miai.


Summary

[Diagram]
Ideal for Black  

Black can get a good result on this side, given both black+circle and black+square.



White's idea in playing white+square is to keep an eye on the black+square point. This indirectly makes it easier for White in relation to the area of the circled points.


Side pattern - K versus pT last edited by Dieter on November 20, 2007 - 00:42
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