I can put my hand on my heart and say I do not know any
theory at all about the Grunfeld.
I know the spirit of the opening (attack and undermine d4)
and that is all.
I can recall one note from Euwe saying the white fianchetto is harmless
against the Grunfeld.
So after 5.g3 I played 5...d5 and laid into the d-pawn.
I then went for traps and I think if White does not play 17.Ka4 then
all I have is a good position, nothing more.
Once I found the Rook lift 19...Rd6 I knew I was going to pick up
a piece. (I love Rook lifts).
I then skittled through the game and towards the end I missed a mate
(22...Be6+) seeing only winning the unprotected piece.
No excuse for that.
[Event "July 2008 Fast Play 1/0"]
[Site "http://www.redhotpawn.com"]
[Date "2008.07.27"]
[EndDate "2008.08.03"]
[Round "1"]
[White "hijbenkobe"]
[Black "greenpawn34"]
[WhiteRating "1922"]
[BlackRating "1754"]
[WhiteELO "1922"]
[BlackELO "1754"]
[Result "0-1"]
[GameId "5260971"]
1. d4 Ng8f6 2. c4 g6 3. Ng1f3 Bf8g7 4. Nb1c3 O-O 5. g3 d5 6. cxd5 Nf6xd5 7. Bf1g2 c5 8. e4 Nd5xc3 9. bxc3 cxd4 10. cxd4 Nb8c6 11. Bc1e3 Qd8a5 12. Qd1d2 Qa5xd2 13. Ke1xd2 Rf8d8 14. Kd2c3 Bc8g4 15. Ra1d1 Ra8c8 16. Kc3b3 Nc6a5 17. Kb3a4 Na5c4 18. Ka4b4 a5 19. Kb4b3 Rd8d6 20. a3 Rd6b6 21. Kb3a2 Nc4xe3 22. fxe3 Rc8c2 23. Ka2a1 Rc2xg2
If I was a 1.d4 player i would play an anti-Grunfeld line. It's easy
for Black to find the moves once you know the theme of the opening.
I'd play the Grunfeld more often but I love the KID & Benoni/Benko.
You will have fun with the Budpest, if you get to play it.
"1.d4 2.Nf3 is the antidote to all gambits." - Kasparov.
The good news is you can then enter a KID without worrying about
any of the f3 or f4 variations.