A Shocking New Queen Sac in the Bf4 Grunfeld

The Grunfeld is probably the only 'fianchetto' opening for black left standing these days in terms of theoretical soundness (although I think the Dragon is severely underrated). There are countless lines where white comes within a fraction of a tempo to refuting the opening, such as Caruana's new Lc0 line against Nepo in the Candidates, and yet black always finds a way to keep kicking.

I wanted to share what seems to be a simple antidote (refutation?) to the old Bf4 mainline for black. It involves a spectacular queen sacrifice that made my day when I first saw it, and so I hope you enjoy it too.

So there you have it. Not a good way to go for the white player. Hope you all enjoyed the idea and stay safe. The silver lining to quarantine is that it's great for finding opening bombs  .