Michael Ayton wrote on 12/06/07 at 12:51:36:
I've been having a bit of a look at the "Scandowitsch" variation, 4 ...Qd6, with 6 g3 Bg4. Complicated! In the line linksspringer gave, I guess the idea is that Black can snaffle on d4 and survive after say 10 a3 Nd4!?. But is this correct? Also, if White plays instead 10 Be3 intending a3/b4 etc., how should Black handle the position? How does he improve, if he needs to, on Lane--Dragicevic below? -- is there a line in which he can meaningfully delay ...Nf6 further?
*****
[Event "Queenstown op"]
[Date "2006.01.15"]
[White "Lane,Gary William"]
[Black "Dragicevic,Domagoj"]
[Eco "B01"]
1.e4 d5 2.exd5 Qxd5 3.Nc3 Qd6 4.d4 Nf6 5.Nf3 a6 6.g3 Bg4 7.Bg2 Nc6 8.Be3 0-0-0 9.h3 Bh5 10.Qe2 e6 11.0-0 Be7 12.a3 Nd5 13.Ne4 Qd7 14.c4 Nxe3 15.fxe3 f5 16.Nc3 Bf6 17.Rfd1 Qf7 18.b4 e5 19.b5 axb5 20.cxb5 Nxd4 21.exd4 exd4 22.Na4 d3 23.Qe3 Bxa1 24.Rxa1 Rhe8 25.Qa7 Qd5 26.Nc5 b6 27.Qa6+ Kb8 28.Ne5 1-0
I am no Qd6 expert, and I am still busy delving into it myself. In the meanwhile:
As background: I'm trying to improve on the following games:
Svidler - Tiviakov 2007:
1. e4 d5 2. exd5 Qxd5 3.Nc3 Qd6 4.d4 Nf6 5.Nf3 a6 6.g3 Bg4 7.h3 Bh5 8.Bg2 Nc6 9.O-O O-O-O 10.Bf4 Qb4 11.g4 Bg6 12.a3! (if 12...Qxb2 then 13.Qe1)
Kotronias-Godena 2002:
1.e4 d5 2.exd5 Qxd5 3.Nc3 Qd6 4.d4 Nf6 5.Nf3 a6 6.g3 Bg4 7.Bg2 Nc6 8.O-O O-O-O 9.d5 Nb4 10.h3 Bh5 11.Bf4 Qc5 12.Be3 Qa5 13.g4 Nbxd5 14.Nxd5 Rxd5 15.Bd2! See also this thread on Qd6:
http://www.chesspub.com/cgi-bin/yabb2/YaBB.pl?num=1175475914 By playing 0-0-0 instead of Nf6 (in the 1.e4 Nc6 move order), I think that at least the Svidler-plan doesn't work for white. And the Kotronias d5-plan could perhaps be met by Ne5 instead of Nb4, I am not sure yet.
In the line with Nb4, you suggest 10.a3 Nxd5 (right?), but I don't see how white plays for an advantage then? 10.Bf4 looks more dangerous to me, and I'm not sure yet if black equalizes.
About the Be3 plan. I played through the game with Rybka, and she thinks Dragicevic didn't lose because of the opening! In the game, 19...exd4 would have led to a black advantage. And in our line without Nf6, perhaps e5!? can be played. So lots of maybees at the moment, hope to come back with more later