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 choices here are at a, to close off the top side, or at b, which can turn into a play for the left side.

Other plays known in pro games are Black at c or d.

[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. There is another way to play B3.

[Diagram]

Variation

Black can play B1 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

Black's other main move can set off a joseki-like sequence. With W6, a hard-to-find tesuji, White can escape confinement.

[Diagram]

Continuation

Black's other main move can set off a joseki-like sequence. With W6 White can escape confinement. This particular line has been played a couple of times by the colourful Seo Neung-uk.

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]

White's tenuki

tderz After B1, this is a light W2-option too.


Written by: Charles Matthews


This is a copy of the living page "4-5 point 4-3 approach keima, tenuki" at Sensei's Library.
(OC) 2014 the Authors, published under the OpenContent License V1.0.
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