What's this Sicilian line called?

I'm not the greatest with the names of variations and subvariations, but I've been doing some analysis on this and would like to know how I should name my file :)

P.S. If the answer is just "Four Knights Sicilian" then yeah I know, and that's not a great name

According to the opening explorer it's just the Four Knights Variation: Exchange Variation.

Don't know what to call it, but why Nxc6? I do believe theory says it's not as good a Nb5, but why move the knight on that move anyway? It's the third move it's making in the opening.

So my question is, are you having success with this version of the Sicilian? (whatever it's called)

@killF7 It's true that the opening principle of not moving the same piece too many times is disrespected by this line, but that's modern openings for ya - whatever objectively works, works. The line is very respectable even at top level and very well known . In fact, by my 3-4 hours of analysis using Stockfish 11 and Leela together with a Database it seems that Black doesn't really equalize, so yeah, it's a good line.

The reason why White can take the liberty of breaking the opening principle of moving the knight multiple times is that Black has also broken some positional rules, since he has all of these pawns on light squares (c6,d7,e6) with the bishop stuck behind them. After the inevitable 7.e5, the d6 square will be forever weak and Black will suffer a lack of space. Your suggestion of 6.Ndb5 is also good but that transposes into a Sveshnikov which is a completely different line.

Well, Chess 365 labels it as "B40: Sicilian, Anderssen Variation"... Whether you play the Knight to b5 or capture on c6... I hope this helps?

I played this variation with my old rival a long time ago. That d6 is a pain in the neck. If you're black, you have to quickly destroy that e5 pain otherwise you'll be doomed to lose.

So whats the idea behind e6?

This looks like a weird Taimanov. It could be theory, but I think the move is a6 or Qc7 for black instead of Nf6

Probably Qc7 actually, to stop e5

#7 basically it gives you a lot of options for where to put the dark-squared bishop and the king's knight, which in a lot of lines seems to offer adequate compensation if white goes all-out to punish black's temporary weakening of the central dark squares.

4 knights sicilian using one basic idea (hole weaknesses) of black by putting the knight on e4. It's not an opening bcs it's already a middlegame idea.