3-3 point distant low approach
This play is a little heavier than more popular 3-3 point distant high approach; there can certainly be reasons to play on the third line here in relation with the rest of the board.
There are here the expected kinds of variations where Black extends to one of a, b and c (decreasing order of popularity); leaving White able to extend back on the upper side.
There is in this case a pincer that is actually played. Variations for this 3-3 point distant low approach, one-space low pincer have actually been developed over the past dozen years of professional games.