3-4 point, high approach, one-space low pincer, 3-3 attachment

    Keywords: Joseki
#hane #jump #cut
[Diagram]

Joseki

The attachment at W1 is a common reply to the one space low pincer. Black will usually either cut at a or play hane at b. The immediate jump to c is a new pattern that is still being explored.

Table of contents Table of diagrams
Joseki
Cut
Main line
Atari
Not joseki
Kosumi
Kosumi continuation
Black plays on both sides
Modern style
Black jumps
inferior for white
white gets bad shape


Cut on the inside

#atari #crawl
[Diagram]

Cut

Black cuts at B2 and W3 is forced. Next there are the old continuation at a, which can be considered the main line, and a rather new one at b.


Crawl

[Diagram]

Main line

When Black crawls, W2 wedge is tesuji. Without this move, the attachment in the corner would not be playable for white.

Next, black can atari from above at a, or from below at b, these moves are further explored at 3-4 point, high approach, one-space low pincer, 3-3 attachment, cut and crawl


Atari

[Diagram]

Atari

Against B1 and B3, W4 is tesuji. An exchange takes place with Black taking corner territory and sente and White influence towards side and center. The result is considered slightly better for White locally but playable for Black in many circumstances.

[Diagram]

Not joseki

W4 here is not so good. The marked stone is under little pressure and Black will find it easy to dispose of the situation.


Trick play diagonal

[Diagram]

Kosumi

An interesting move (but hamete) that has potential use in some situations

[Diagram]

Kosumi continuation

Black trades the corner and some stones to get development on both sides.


Hane on the outside

[Diagram]

Black plays on both sides

This is a well-established line too. Next White plays a (simple), or b, c which are both complex. See 34 Point ,High Approach, One Space Low Pincer, 33-Attachment, Outside Hane, Large Scale Fight.

Recently there have been experiments with B4, also.

[Diagram]

Modern style

Kogo's joseki dictionary says that this is the modern way, and gives some variations which look rather complicated. Game search have found 121 pro games with this position, mostly played since 1997; a is by far the most common continuation (70/121), but all of b through e appear also. More SL analysis needed, a.o. about white forcing at 'f' then attacking at 'g'.


Two point jump

14 professional games in 2007-2008 have featured the following pattern:

[Diagram]

Black jumps

a and b both appeared as followups for white to strengthen his group, but it seems a variety of moves are being experimented with.


[100]

[Diagram]

inferior for white

Black simply extends down the left in response to W2.

[Diagram]

white gets bad shape

white+circle becomes overconcentrated when white captures B4. If W1 at a instead, black extends across the top to the right to b



This is a copy of the living page "3-4 point, high approach, one-space low pincer, 3-3 attachment" at Sensei's Library.
(OC) 2009 the Authors, published under the OpenContent License V1.0.
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