[quote author=Michael Ayton link=1138105012/0#5 date=1138449696]Thanks for this, kylemeister. I'll take a look at the Yearbook. I'm not quite sure which line(s) with ...Nge7 and d4--d5 he's covering in Part I. Are these ...g6 lines? -- maybe you could let me know the move order?
Portisch, in the book you mention, recommends the ...Be7 system I mention in question (3) of my post. He does also recommend the ...g6 line, but with ...Qe7. Davies, however (on ChessPub), suggests ...Qe7 is inaccurate before/unless White plays Nb1--d2, because of the plan d5, Bxd7, c4 and Nc3; instead he suggests 5 0-0 Bd7 6 c3 Nf6 7 d4 g6 8 Re1 b5 9 Bb3 Bg7. The implication is that the line Emms gives as slightly better for White in NCO (p. 334, note 12), namely 10 de Ne5 11 Ne5 fe 12 Bg5, isn't a serious danger for Black -- see e.g. Schekachev--Malaniuk -- and that Keres, who played this system quite a bit, knew this.
In the 5 Bc6 bc 6 d4 variation (C73), Davies also suggests 6 ...ed!? and 6 ...Bg4!? for Black, ascribing both lines to Keres. After 6 ...ed he gives 7 Nd4 (7 Qd4 c5! 8 Qd3 Ne7!) c5 8 Nf3! (Portisch gives this move as best, but without any analysis) Nf6 9 0-0 Be7 10 Nc3 0-0, but here he doesn't mention Emms's 12 Bg5.
As a general remark, I often get the feeling that quite a few people on here neglect the stuff on ChessPub. There's some very interesting material there -- I have the ChessPub shortcut permanently on my desktop!
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Wow, you're quite up on this. Interesting stuff. Karolyi's point of departure is 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. 0-0 Bd7 6. c3 Nge7 7. d4 Ng6 8. d5. I was thinking that ...Nge7 implies ...Ng6; it seems to me that combining ...Nge7 with ...g6 is "just not done," but I'm not sure why (though some vague possibilites come to mind). Yes, maybe I should actually look it up ...
It seems unclear to me whether there is a "main line" in this stuff now, regardless of Karolyi's remark that I quoted. I remember that in the old days (say 1970s-80s) when White played the 5. c3 (rather than 5. 0-0) move order and Black played ...Nge7, the main line seemed to be 5. c3 Bd7 6. d4 Nge7 7. Bb3, forcing Black to spend a tempo on ...h6; then Black tried to make use of that by means of ...Be7-g5 while delaying castling himself (for reasons pertaining to the possible opening of the h-file) ...
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