3-3 point distant low approach
Difficulty: Advanced Keywords: Joseki
This play is a little heavier than more popular 3-3 point distant low approach (self-link?) [1]; there can certainly be reasons to play on the third line here in relation with the rest of the board.
[1] unkx80: I think maybe 3-3 point distant high approach?
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.