A pretty uncommon one, 1. Nc6.
It's worked for me wonderfully compared to other openings I've tried.
I play Nc6, and score not bad with it (otb too). But objectively, it's not so good.
Ok, stockfish doesn't like it, but so what?
It usually get great positions and good winning chances against 2500 and 2600 rated players. I think that's good enough for the 1400 rated OP
Who said anything about stockfish? It's just less sound. And I've seen 2800 player play d4 and follow it up with h4 h5 and a4 a5 and win against another 2800 online.
OP asking for best openings for black against e4. "Best" doesn't consider psychological stuff or possible no-prep issues.
A pretty uncommon one, 1. Nc6.
It's worked for me wonderfully compared to other openings I've tried.
I play Nc6, and score not bad with it (otb too). But objectively, it's not so good.
Ok, stockfish doesn't like it, but so what?
It usually get great positions and good winning chances against 2500 and 2600 rated players. I think that's good enough for the 2100 rated OP