3-4 point, distant low approach, tenuki
It is possible for Black to ignore here. This position may also occur as a 6-3 point joseki.
In practice this sequence appears, in pro games, which is the same as if there were a black pincer stone at a (3-4 point distant low approach) and the usual variation. At this point some deviation should occur.
These are pro plays: to control , to kill off is then thick.
See also 3-6 point pincers for some ideas that are rarer, in pro games anyway.
It is also possible to hane at . The resultant position is somewhat low for Black.
The hanging connection of is good for eye shape. may also be played lightly at a or b, with a possibility for entering the corner at c later. It is not advisable for to enter the corner at c without additional support.
may also play higher at d, which may lead to a gote variation or a fighting variation.