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The keima joseki in fuseki
    Keywords: Opening, Joseki

Charles Since it is played rather frequently by my fellow-countrymen at my level[1], I'm quite interested in pro use of the keima joseki. That is, it is quite hard to show that this way of playing is bad in typical positions, since both sides make reasonable shape; I want to approach the question of its proper employment from the side of ideal deployment.

[Diagram]
Keima is orthodox

When Black plays BC as a one-point pincer, an anti-minichinese measure, this is a common result. Black ends the joseki in the left-hand corner in sente, so B1 next is quite natural. Then W2 in answer is a standard play.


[Diagram]
Keima is orthodox

The main line joseki to W4 is expected. Next Black in pro games has played a, b and c. Besides shape, Black must consider the aji of WC.


[Diagram]
Tsukehiki gives Black good shape

In contrast W2 here allows Black an efficient side formation after B5 (and presumably sente, too).



[Diagram]
Rather different

On the other hand this B1 is (according to pro game statistics) more likely to be met with a than with b, by a factor of about 50.


[Diagram]
Black content

Black hasn't any reason to be dissatisfied with the plays to B7: Black has textbook development.

Charles Matthews


[1] There are five examples in the 21 games from the British Championship just posted at [ext] http://www.britgo.org/results/2003/chall.html.



This is a copy of the living page "The keima joseki in fuseki" at Sensei's Library.
(OC) 2003 the Authors, published under the OpenContent License V1.0.