Nice and as black?
What are your chess openings?

I play Giuoco pianissimo as white and Petrov's defense as black and for Sicilian defense I play Grand Prix Attack

oh boy. Everything. that would be a BIG list for some of us.
my experience is that the stronger players have extensive and well thought out openings.

and here's a bit of a mystery.
I play plenty of people as black- and its easily 2:1 (e4 to d4)
and yet on this list so many people say the play d4?....
weird.

99.9% of the time as white: 1.d4 (in fact, on this site I think I have played nothing else)
As black, I answer 1.d4 with KID (move order varies); I answer 1.e4 with Sicilian (Najdorf if allowed)

there is still ALOT of d4 players in this forum.
could it be that d4 players are statistically more intelligent and social ? ha!
just a joke guys.
I wouldn't want to take a poke at a person IQ. for reasons not explained that is the ultimate insult around HERE...

White: King's Indian Attack mostly but I also know e4 openings pretty well.
My repertoire as Black is more varied.
Black: Sicilian Kan, French Defense, English Defense, Dutch Defense, King's Indian Defense.
I like to play dynamic positions so I try to avoid symmetrical pawn structures.

thumbs up to a french defense/ sicilian defense reportoire.
thats going to be me! when I learn some sicilian....
@sai. Curious, what kind of sicilian do you play as black?

I once used the Flying Tomato Attack in a 960 game---If I encounter the same set-up I will use it again...

I figure the chances of me ever becoming a famous player are about 0.00000000000000000000000000000000001%, so it can't hurt to share my repotoire.
As white:
1.d4 (Queen's Gambit, London System)
1.c4
1.e4 (Four Knights, Ruy Lopez)
As black:
against e4: Caro-Kann, or e5, with a Marshall attack if they'll let me
against d4: Slav Defense
against c4: symmetrical variation

1. Nh3, followed by inhaling some ammonia and a thirty minute walk to the bathroom.
"Knock, knock."
"Who's there?"
"Ammonia."
"Ammonia who?"
"Ammonia kidding, peephole, relax..."

Scotch Gambit, thought I'm learning, in depth, the Queen's Gambit. I've won pretty handily the last two times I've pulled out the Blackmar-Diemer Gambit, so I'm going to keep working on that. Unfortunately, I think, the easiest way to play the BDG is to turn it into a French, so I have to keep up with the French as white. I've been working on the Budapest Gambit against 1. d4 and the Sicilian Taimanov against 1. e4.
What's your opening as white and as black,and what's you opening against other openings?Tell everything here!