Corner co-ordination 2
Chikun's plan
This is one of the less common side formations. If Black plays next at a the corner co-ordination of the resulting 'sub-orthodox formation' is reasonable (not great, perhaps, compared to the orthodox fuseki).
Assuming White enters at
here, the co-ordination isn't brilliant if Black plays, for example, the pincer b. Black's chances of a framework on the upper side are limited by what White might do with the shoulder hit at c next. Black at b looks like the right type of idea with a 4-4 point in the right-hand corner.
Cho Chikun's play, in a number of his games, is to press with
. This then assumes that the right-hand corner can take care of itself. In playing the press one has to bear in mind some large-scale variations leading to a pushing battle. See pushing battles in joseki 5.
The other formation
Thinking of the other arrangement, we get a formation rare in pro games (tried out a few times by Sakata).
![[Diagram]](../../diagrams/3/33b2fd05c50ed858ed309bc7402c621c.png)
Easy shoulder hit reduction
The reason is that
keeps the side territory down, even if Black uses
and
to build up a framework.
![[Diagram]](../../diagrams/40/f2dbc52aea97d57fc6de5cd59d62cf38.png)
![[Diagram]](../../diagrams/33/935c5c0c342d79a5b7b3c94663fe3477.png)
![[Diagram]](../../diagrams/14/3aa6bc281b330600ed8e4f0781e94b45.png)
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