@CheapShotFail All Indian games, including the Gruenfeld, are based on hypermodernism, that is, the control of the center using pieces on flanks over pawns in the center. White's aim with Bg5 is to undermine the knight's control, which is of vital importance in the Gruenfeld

Its easy to learn.

If I was playing the gruenfeld, I would have just gone book with 4.cxd5, and I can't really understand the quality of this move. Just seems like "pin-pimping" to me lol.

A somewhat common variation of the Grunfeld.

Interesting..never met this opening...