4-4 point low approach low extension, contact
Keywords: Joseki
![[Diagram]](../../diagrams/14/b3e8107c751e21c3129437c9a04eee12.png) | Contact |
White plays in order to strengthen the lone stone. Of course Black will expect to become stronger here too: Black at a is probably automatic unless is played as a ko threat.
![[Diagram]](../../diagrams/23/81ec33020072717e38a49e4584ede5a9.png) | Main variation |
This variation is normal in contemporary pro games. Next White plays a or b, depending on the position on the upper side and the need to protect her shape.
Black can also play at to trade the corner for a position on the upper side.
![[Diagram]](../../diagrams/37/9de9b3abcda48516c8156803982c3881.png) | Trading |
There can be a number of ways to play this variant, but this is a representative sequence, with White alive in the corner.
In recent years White has tried the immediate cross-cut at , raher than the staircase, presumably to avoid this development.
![[Diagram]](../../diagrams/36/d02e346ef55be5a87477023e614c5777.png) | Solid connection |
It is also possible for Black to connect solidly with (according to the advice about the staircase). Both groups then have good shape, and Black may want to make a flanking extension immediately on the left side.
![[Diagram]](../../diagrams/18/de8b4cf6cb74c8603a650e1bdbc7ecce.png) | Double hane is rare |
With the knight's move extension, the double hane (osae) is a rare play in pro games (differing from the case of at a). There is probably more than one reason for that: White at b can be helpful if White is looking for sabaki here; there is feeling that Black is being forced into over-concentration, too.
![[Diagram]](../../diagrams/12/5abbc6bf43584a86d002a2adafe88ec7.png) | Bulge play for ko |
White's other idea is to play here for a bulge formation. Black probably takes up the challenge of a ko after and . The steady play of at a is also seen: White can still provoke a ko with White at b, , , but this ko is a little better for Black.
Charles Matthews
This is a copy of the living page
"4-4 point low approach low extension, contact" at
Sensei's Library.
2004 the Authors, published under the OpenContent License V1.0.
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