Do you have a twin and does he/she play chess as good as you?

I have a twin sister- she knows the rules but doesn't play.

no

I wish I had one

I have an evil twin that will use my login, make horrible moves in my games; and then log out. He hangs pieces, ignores opponents passed pawns, and doesn't defend well.

 I know. I think I've played him!

NO

I have a twin brother.  He finds chess boring as hell but I love it.  I'm always trying to get him to play a game with me but he's sick of me beating him :)