Three star points, contact invasion

  Difficulty: Intermediate   Keywords: Question

Q: Jion: Hello, don't know where I should ask this or find this; I tried searching for it but found nothing. Please edit/move this if it makes things easier. Just wondering if it is always possible to live with an invasion at a in this situation? I realize that invading immediately would probably be helping Black, but can anyone give me some ideas for a joseki sequence? Thanks in advance.

[Diagram]

Middle-game joseki invasion?


Note: The three stars (star points, hoshi) formation is the major example of san-ren-sei.


Dieter: (copied the above from QuickQuestions)

[Diagram]

For starters

Notice that this is also a standard method for approaching a hoshi stone with a 4473Enclosure where W7 is a little more cramped by the presence of BS.

[Diagram]

For starters too

[Diagram]

For starters


Charles: There are good reasons why this is 'rare': no joseki.

Probably the most interesting way for White is this. Of course there is a ladder to consider now. This might be played in a high-handicap game.

[Diagram]

A little heavy

If instead W3 and B4, White's group is somewhat heavy. Black can expect to make territory, in the left corner by attacking, and on the right.


This is a copy of the living page "Three star points, contact invasion" at Sensei's Library.
(OC) 2005 the Authors, published under the OpenContent License V1.0.
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