Angle play after diagonal attachment

    Keywords: Opening, Joseki
[Diagram]

Ugly angle play

The problem is with W5. I (Charles) see this often when White enters Black's sanrensei. Black can get good territory by playing at a; while in a handicap game playing at b for influence is also good.[1]

[Diagram]

Plays for a base

If White really wants to make a base, playing WC is better. The common play is c, but that can mean that White is driven out into the centre.

[Diagram]

Another way

Fhayashi - This is suggested in The Power of the Star Point



Charles W1 is fine, but W3 is a bit heavy: try at a (or even b) instead.

Andy: Doesn't W3 give white the opportunity to make Immediate Life with c?

[Diagram]

Takemiya-Jiang



From Takemiya Masaki-Jiang Zhujiu 1988-08-21. Here W1 takes into account the earlier exchange of WC and BC to the right. White lives quickly (White 11 at d) and claims that Black is a little overconcentrated to the right. In return, Black can claim greater security on the left: to invade at e and get the answer Black f is seemingly a bad idea for White, seriously weakening her side group.

Charles Matthews


[1] Why is W5 bad? Please show an example.

[Diagram]

Double hane continuation

In answer to WC, Black has a choice of playing at W2 in this diagram, or this sequence to give White bad shape.


This is a copy of the living page "Angle play after diagonal attachment" at Sensei's Library.
(OC) 2007 the Authors, published under the OpenContent License V1.0.
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