GabrielGale wrote on 11/08/08 at 03:26:52:
Thanks Stigma for the references. Much appreciated. Looking at Tiger's more closely, he also discussed diff bet Nc3 and Nf3 in Ch 7 — Bc4 Mad Dog at p 141ff. He says after obligatory 1 e4 g6 2 d4 Bg7, 3 Nf3 is "more positional and is favoured by players who like to avoid deep theoretical lines. 3 Nc3 is popular among players who prefer a theoretical duel with high stakes. I recommend that you meet both these lines with d6, Nf6 and 0-0." Just wondering whether his remarks here are only applicable to the lines where W intends Bc4?
I think Tiger is talking specifically about Bc4 lines here, but to a large extent this applies to the entire Modern. Nc3 without Nf3 is generally more aggressive and theoretical (4.f4, 4.Bg5, 4.Bc4; though 4.g3 is calmer but still critical); Nf3 without Nc3 is the calmest line of all, while Nc3 with Nf3 is somewhere in-between.
Tiger page references:
4.Be2!? p.125, 4.h3!? p. 129. 4.Be2 thus avoids a system with a6-b5 that he spends a few pages on. I think I have seen some analysis by Nigel Davies on playing ...a6 even when white has/gets c4 in (I don't have his Starting Out book yet). So far all I have found is Levitt-Davies, Redbus KO 1999, in the Chesspub archives (inexplicably classified as "B06"). It's a nice overview of the main points of the "mysterious" ...a6.
Tiger's h3 coverage btw is sloppy and doesn't really cover the attacking lines analysed by Dzindzichashvili and Davies, Black players should definitely look at Vigus (and maybe other sources).
1) Not sure what you mean here. 1...d6 forces white to play e4 if he wants to play with both e4 and c4 AND avoid 2.c4 f5, so in a "Leningrad-related" sense 1.d4 d6! 2.e4! g6 3.c4 is the most accurate move order to reach the Modern with c4.
2) In my own experience 2.c4 and 2.Nf3 are the most common replies to 1.d4 d6 (oppoistion ranging from 1500 to 2300) but some people will transpose to an e4 Pirc/Modern. Actually I think this is particularly common for Trompowsky players, searching for attacking chances.
1.d4 d6 2.Bg5 can be met by 2...h6 3.Bh4 g5!? which was analysed in "An Explosive Opening Repertoire for Black", last time I looked at it black was OK. I have never seen
1.d4 g6 2.Bg5, though maybe it's playable. There is also the Torre, Colle and London systems, though happily the Leningrad is very effective against these "Anti-Indians".
Thanks for the Grivas reference. It is true that against his specific, early Nf3 move order Black can reach the Leningrad, but 1.d4 g6 2.e4 Bg7 3.c4 d6 4.Nf3 would reach the same Modern lines without allowing the Leningrad.