4-4 point 3-3 invasion joseki, hane and inside hane

    Keywords: Joseki
[Diagram]
Inside hane  

The inside hane at B1 is indeed a third possibility to consider in the 4-4 point 3-3 invasion joseki (after B7 and B3). The order of W4 and W6 is moot, although the order given here gives slightly more room for variation: Black can exchange black a for white b before blocking at B5, and white can play W6 at W8, giving up prospects in the center in exchange for more aji on the upper side.

[Diagram]
The result  

With this result White has sente but Black has been able to shut off both sides.

Summing up on this idea: White has lived quickly, and left some outside aji by playing white+circle. Black's influence is going to work well with a stone at any of a, b, c and Black has successfully avoided the variation in which White makes a ponnuki on the upper side. Black has become quite thick.

Temporary Note?: Is Black thick, or does White have aji? The presentation is a little awkward, if not contradictory.

tapir: Can't it be a bit of both? White has a cutting stone she can put into motion later -> some funny business, Black is quite strong on both sides even then. In professional games it is mostly seen with a black extension already in place on both sides.

[Diagram]
Resistance  

White can resist black's plans by playing the atari at W2 here, then continuing with W4 here or at a. However, B5 is a big move in either variation, denying white's group eyeshape in the corner and thus keeping it weak.



4-4 point 3-3 invasion joseki, hane and inside hane last edited by Dieter on October 21, 2015 - 14:01
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