3-6 point pincers
A comment of Alexandre Dinerchtein: what is wrong with here?
Below are the two examples of this pincer from GoGoD CD. In both cases the player being pincered rejected the tight play at a and played the shoulder hit at 2. The original pincer at 1 is an unusual move (two cases found in 17000+ games). In both cases it is played from a white position of strength. It is reasonable to assume that the professional players here rejected a as too passive. Imagine both positions if Black plays a and White follows with a play around b, loosely enclosing the small black corner. DaveSigaty