4-5 point 4-3 approach keima, tenuki

  Difficulty: Advanced   Keywords: Joseki
[Diagram]
White's tenuki  

One of the most complex and interesting of tenuki joseki is met when White ignores black+circle here.

[Diagram]
Black's plays  

Black's main line here is to play a, to close off the top side. Other plays known in pro games inlcude Black at b, c or d. c will not be discussed below, because its sequences are similar or equal to those of the main line at a.

[Diagram]
Black's move at a  

This is the common line in pro practice. After W2 the white+circle stone retains aji. White will extend in the direction of W4 after B3: there is a question of whether to hold back at p, and whether or not to play the White q - Black r exchange first. That in turn depends on the use White intends to make of the play at s, aiming at white+circle from the other direction. All these possibilities come up in pro games.

[Diagram]
Variation  

Instead of B3 in the previous diagram, black can play B3 here: but is certainly too thin to kill White: consider White's plays at the x points. This way of playing was tried recently by Yamashita Keigo.



[Diagram]
Black's move at b  

B1 here (b in the diagram) can set off a joseki-like sequence. With W6, a hard-to-find tesuji, White can escape confinement. This particular line has been played a couple of times by the colourful Seo Neung-uk.

[Diagram]
Continuation  

Black can turn the corner into a ko by playing at a BQM531, Black b sacrifices the three stones but gets a part of the corner.

[Diagram]
Taking the corner  

If white wants more security in the corner and doesn't mind getting locked into it, she can play W1 here instead. After W7, black can play a or tenuki.


[Diagram]
White's tenuki  

After B1, the usual line is for white to approach the corner from the left side, for example at a, but W2 is a nice light way of escaping to the upper side.


Written by: Charles Matthews with additions by tderz and Andre Engels


4-5 point 4-3 approach keima, tenuki last edited by AndreEngels on February 24, 2016 - 20:13
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