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Actually Shredder calls it Averbach even if one dont play Bg5. I have played real Averbach (ie. 6.Bg5 Nbd7 7.h4 etc.) and I´m relatively happy with the results but I want to try something "new". Also, I think Averback with c5 + e6 does not give any attacking changes for white

@BladezII



Okay, seriously... 

(Disclaimer:  I no longer play the Averbakh system, but I still believe in it.)

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 0-0 6.Bg5 c5 7.d5 e6is the starting point, not the ending point of the main line of the Averbakh!  7...h6 is mostly just a transpositional tool.  Let's see some well-known lines to illustrate this.

8.de6? really is just equal after either 8...Be6 or fe6.  One interesting game to look up in each variation is:  Evans-Gligorich, 1957 and Bobolvich-Roshal 1957 respectively.  

So now that we have the trash out of the way, let's look at more reasonable play for White.  Remember, this is just a sampling of play, and isn't encylcopaedic.  (BTW, I am using several sources for my information, not least of which is ECO E75 1991 by Polugaevsky.)  

I.  8.Nf3!? h6 (exchanging on d5 is considered to be bad for Black here.  A neat theory that backs this up is that tension (created when either side can make an exchange of material) in chess is good, and whoever breaks it usually loses something in the process.  Moral:  break the tension only when you are sure there's a good reason.) 9. Bh4!? 9.Bf4 is probably not best whether your idea is sound or not, and Polugaevsky analyses 9.Bd2 to what he considers to be equality in ECO, but it's not very clear.

Nunn, in The Main Line King's Indian(1996)gives the following line (with lots of side variations):


9....g5 10.Bg3 Nh5!? 11.h4 (Keres' move.  By the way, we've transposed into the Petrosian System with 8.Nf3.  11.Nd2 is also possible, and Black still has a lot of work to do to prove that is only equal.) 11...g4 12.Nh2!? Ng3 13.fg3 h5 14.0-0 f5 15.ef5 or 15.Rf5! The exclam belongs to Kramnik. 15.ef5 follows Kramnik-Kasparov 1994 which gave White a big plus.  There are lots of segues to discuss, but I doubt we'll solve it all here.  If we do, then frabjous day! 8)

Alumbrado, 

I agree completely that White plays g4 in several important variations of the KID.  I just don't see what White has to gain by playing it so early.  As you pointed out, White usually plays it to stop the "wild" play of ...f5, and only then to look for some sort of king-side play on his own.  I agree that the other moves (especially 5.Nf3) make more sense until Black has committed ...e5.

yep! I agree with Smyslov. W/o Bg5 there is no Averbach.

@Smyslov-fan. Just maybe It was from trying out that 'can opener' thing that Tigran got some ideas for his own System?? Cos after black starts chasing W's dark bishop with h6, g5, & Nh5 white responds with h4!?  Black's f5 break is blunted and  the g5 pawn is somewhat weakened.  So h4 here would be even more potent. What do you think??

I think White has lost a tempo compared to 1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Be2 Bg7 5.g4.