3-5 Point High Approach Pincer

Tricky  

If White plays , keeps up the pressure.

Transpose  

Ishida's joseki dictionary advocates this , transposing to 35 point low approach two-space low pincer. This is a common response.

Corner  

The press with has been played a few times for influence.

Trick play?  

Kogo's joseki dictionary contains extensive analysis of the position after and (and either white a or b next); however, in pro games black never seems to respond to at .