1. e4 Nc6 is the Nimzovich Defense.
1:e2-e4 Nb8-c6. d2-d4

if you play d5 here it is the Nimzowitsch Defence, if you play e5 here it is the Kevitz, Dark Knight System and can transpose into the Scotch and some lines of the 2 Knights Defence

You can also play d6 and transpose into a weird form of Pirc Defense (perfectly playable, probably a white advantage but nothing huge).

You can also play d6 and transpose into a weird form of Pirc Defense (perfectly playable, probably a white advantage but nothing huge). Well yes indeed, as is recommended in The Dark Knight System, well, recommended as the lazy side of the "system" it is perfectly sound the Dark Knight Pirc but I personally prefer the positions after e5 or d5
I'm not new to chess but I don't know opening or gambit names. I want to know what is this opening name and what is the best defense for black
thanks a lot