Do you play the same opening lines in on-line chess

as in OTB chess ? Or do you go for variety to hide your precious pet lines ?

Yep.

Yes, always the same, scholars mate:)

Maybe.

almost the same but i play more agressive openings ( and also systems) in blitz ( EX grand prix vs open sicilian)

I play the same opening lines online / versus local engine / club / otb.
And my repertoire is one that is constantly evolving.

I think that there is nothing to hide, as chess is too complex.

I try to but my memory is such that what I actually end up playing varies with how much I recall and how much I need to improvise.

I never play otb. Maybe i start when I am good enough.

@achja said in #1:
> as in OTB chess ? Or do you go for variety to hide your precious pet lines ?
Mostly. It depends on strength of opponent if I know. And I only go for try outs (try for different openings) when opponent is quite weak.
Like in online chess I am used to Scandinavian as is evident from my games but at OTB against a strong player I wouldn't take risk as I have not mastered the Scandinavian Defense. It happened me once that I went for Sicilian instead and I knew quite much of Sicilian and that very game ended winning for me.
In online chess I may try different things other than my usual Queens Gambit, like Bird Opening (fairly successful) when rating of my opponent is somewhat 200 rated less than me.