3-4 point, high approach, ogeima

    Keywords: Joseki

The ogeima answer to the 3-4 point, high approach is rare.

[Diagram]
Ogeima  

Database search (gobase) in a 10x10 quadrant reveals two games with a, one game with c and three games with tenuki.

[Diagram]
a: Corner contact  

The other contact play reverts to a 5-4 point joseki. The database search gives W5 at a or b.

According to All About Joseki, the downside to white+circle instead of the usual play at circle is that now an invasion by white at y is less severe because a black play at z is sente, which would not be the case with white+circle at circle.

[Diagram]
Tenuki  

Professional play tells that if black plays tenuki, white's aim is to attack at b.

[Diagram]
Cutting contact  

Cutting through the ogeima is not seen in pro play. The cross-cut W2-B3 is inevitable. Then White has many options.

[Diagram]
Simplest  

The simplest idea is to strengthen the weakest stone in the crosscut. Even though white+circle is blighted, the corner is big and Black has no eyes.

[Diagram]
Atari  

The atari doesn't look too good. Black gets a big corner and White's shape is troubled by a.

[Diagram]
Descend  

The descent is not as sharp. Black is easier here than in the "simplest" diagram.


3-4 point, high approach, ogeima last edited by Dieter on September 23, 2011 - 18:43
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