TD wrote on 02/18/16 at 17:07:41:

Thank you!

Recently I came across the following:

1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 d5 5.cxd5 Nxd5 6.Bg2 Nb6 7.Nc3 Nc6 8.e3 O-O 9.O-O Re8 (a main line), and now 10.Nh4!? (with the idea 11.f4, it seems).

10.Nh4!? is a relatively new continuation, first played in 2013. Meanwhile, ChessBase's Mega Database 2016 lists some 46 games with this move, with White scoring an amazing 81%! And while the computer is not really impressed, even an experienced Grünfeld player such as David Navara lost a game in this variation, as Black, against Sandro Mareco (Gibraltar 2014) (http://www.chessgames.com/perl/chessgame?gid=1745300).

I wonder if there's more to 10.Nh4 than just the surprise value. And as I have found not a single commented game with this line, I'd like Glenn Flear to have a look at it in one of his forthcoming updates for the Daring Defences section ...