Is there a name for 1.d4 Nf6 2.c4 a6? it came to me one as i was searching for d4 alternatives....{so i didn't copy it from sb else} do you think its good?it can lead to benoni lines and it can surely take your opponent by surprise....
Benko. Sorry...no name for you.
There is a Greek Attack, however, and championed by Larsen.
And the Greek Defense is a Black version of the same game.
Thing is, the big boys that use those games probably eat a dozen players like us before lunch. Or, in plainer language...be alert.
Plus, when you move something like a6 early on? (h6, same thing) then your opponent will merely trim down his attacking to systems that don't call for the push in the first place. Most often you will see that in The Nimzo-Indian: 1. d4 Nf6 2. e3 e6 3. a3? .... Black will now merely describe events without the usual ....Bb4, and trust me on this. It is an almost perfect example of why doubled Pawns on the Queen side are better than pushing that a3. Besides being avoidable, it was also the move White gave away (imagine giving away a move as Black) and now, White will have a craped quarters Q Side with little or no resolution. And that is because Black won't play to the forward a3 Pawn.
But, then, what the heck. If it works for you, I would say use the dickens out of it!
d=^))
(I know I would!)
I think it is "original" of about a dozen people, including me.
But your original QUESTION is different.
I think that c5 is called for, but does not deserve the three exclaimation points given. White will now either prop up the QP with c3 or Nf3, and at that point, you make your decision to play the Sicilian or the French.
I prefer the Sicilian, so ....cxd4
If you prefer the French, e6 is your move.
The first variation can be found under Alapin's opening in the Sicilian ( I believe he came up with his system during the late 1800s)
I think it was Korchnoi that occasionally broke into White's center Pawns with c5 (after the KP advance) as well as Spassky, and some of us were interested in seeing THAT game between the two during the games leading up to finding a challenger to Fischer. (Karpov)
But, as for inventing it...
I wouldn't be so quick to brag about moving a pawn twice in the opening. You have transposed a Karo into a Karo with a half move loss. The Pawn should have gone to ....c5 to begin with, and your move following the e5 push would center around you fianchettoing the King Bishop, and after ....0-0, ....f6
For what it's worth, not many of those games were named by their originators. They got named because the originators had worked for years on them, used them often with success, and, in all probability, were really a form of cursing.
"Oh dang! I have to play Alekhine, again this tournament. That darned Alekhine's Defense!" Like that...
d=^))