120 ( +1 | -1 ) 6.g4 in NajdorfI've played 6.g4 very successfully in the Najdorf: 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.g4?!?
Usually Black plays 6...Bxg4 7.f3 Bd7 but I think that 7...Bh5 is the best when White may be struggling.
This has been informally called the "Dekker Gambit", which you can search for on Google. I don't say its a good opening in an objective sense, but it is good in a pragmatic sense, and I've had some really excellent games with it, and even the ones I've lost afterwards I've found improvements.
Most people give lines like: 6.Bg5 e6 7.g4?? calling it "silly and pointless" (in this position, yes), but it doesn't help being completely closed/dogmatic to this wierd idea or new ideas in general - White gains compensation in the form of the half-open g-file, the f3 pawn supporting the centre and a clear plan - ATTACK! Against best play, though, the Dekker gambit should lose, I admit.
What do you think?
I'd be happy to email a collection of DG games to whoever asks (see email below).
If you ever play the DG, please let me know by emailing me at [email protected] I'm going to write a book on this opening in the next year or so, and I'd like to include games in this opening not played by myself!!