10. ... Bxc3+ is known in opening theory to not be a very good move. 10 ... Ne5 would be better.
http://www.chess.com/echess/game.html?id=3521821
22. ... e6 looks like a mistake. At this stage you need to activate your bishop and rook and bring your knight back to the center.
26. ... dxe4 may also be a mistake. You have a chance to play 26. ... Bb7.
Well, convinced by Yelana (at least her book title) I played the Grunfeld...
It did not go to plan. Any comments would be appreciated
Thanks