BQM184
I'm guessing that it's because Black can push through and cut and get a better result with this than with other pincers, but I'm not sure. That's the question.
Charles If now White a, Black b, White c, Black d, White looks heavy. It seems, in contexts where White does play the press, White has some other way to fight after in mind.
In a couple of pro games, this is played when the marked stone is already in place. Perhaps this helps.
Anonymous: I am confused. Is this the intended diagram?
Bill: No, it is a comparison diagram. When Black has played the stone, instead of the high pincer,
is joseki.