i like to play d5 in response to d4 hoping for a queens gambit game so i can get into the cambridge springs defence. i like this one as it gives you a good offensive reply to d4. its got the advantage of a trap after move 4 Bg5 Nbd7 for the unwary. if white makes a grab for your pawn you can pull off a queen sacrifice and come out a piece ahead.
d4 d5
c4 e6
Nc3 Nf6
Bg5 Nbd7 (cambridge springs)
if white gets greedy
cxd5 exd5
Nxd5 Nxd5!
Bxd8 Bb4+
Qd2 Bxd2+
Kxd2 Kxd8
and you come out a piece ahead. if they don't go for the pawn you can just carry on developing your pieces for an attack on the queens side. i really like this one, however it comes with the caveat that i'm just learning to play and white might have some answer to it that i'm unfamiliar with. but imho, worth a look. all the best, phil webb.
I was wondering what people thought was the best defense against 1. d4. Obviously, it is a matter of preferance, but I would like to have a defense against it that is fairly secure and can allow me to have the possibility of taking the offensive. Right now, I primarily play 1...e6, hoping to transition to French positions in which my theory is secure and I can play without giving much thought to the opening. However, I would also like any comments and opinions about any systems that might be beneficial to counter d4.
Thanks, Zredfire