How to play the Grunfeld

Hi all,

I'm studying an opening called the Grunfeld Defence.  Can someone help me out with what to do after these following moves?

In this variation you don't exchange the knights like in the classical exchange variation. It turns out white has some say in what moves are played as well. One recommended line is: 4. ... dxc4 5. Qxc4 Bg7.

If white plays e4 at some point you can still undermine the center by playing c6, b5, and b4 driving away the defender of e4. Be6 and Qa5 are also often played by black.

oh ok, so the idea of the Grunfeld is not just about exchanging the knights and creating a weaker pawn structure, but to attack at a large pawn center...

Yes, in fact that's the main idea.

Sounds risky...just the type of opening that suits me hehe.