Hello.

Here is a summary of Marshall analysis done so far in the thread (se attached PGN). Character limitations prevent posting the PGN in a PGN window.

Have a nice day.

Hi.

Earlier today I put together analysis of (6...Bc5) and (6...d6) Jaenisch into the same PGN and added some analysis of reasonable replies against black sidelines between move 4 and 7. The result is a PGN to large to post in a PGN window due to character limitations. It is possible to attach the PGN-file though and this has been done below.

Anyone checking this PGN can see it as a Jaenisch repertoire suggestion. This repertoire suggestion is not carved in stone and can very much be modified and amended. If however, at some point a consensus is reached that the repertoire suggestion has reached a sufficient degree of maturity I move that it should be adopted as part of the so called Chesspub Spanish repertoire.

To start some discussion I can say that I'm not sure about what is best after:
(1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.d3 fxe4 5.dxe4 Nf6 6.0-0 d6 7.Nc3 Be7 8.Qd3 Bd7)
As it is I'm not even convinced the main line given in the PGN is actually advantageous for white. Anyone have any nice ideas here?

Have a nice day.

The Jaenisch ideas look very nice, I'm keen to try them out in my next game! I'm not sure we covered an answer to the Marshall yet, but I think the following game would be a fairly practical recommendation where we can still challenge the opponent:

10. Na4 looks good, White has some edge there.

Here is some analysis on 6... d6 (8. Qd3) I refined it a bit since the last time I posted it.

Hi.

Confused_by_Theory wrote on 04/01/16 at 11:28:20:
(Line from post #514)
Confused_by_Theory wrote on 04/01/16 at 11:28:20:

Here is some analysis on this:
To sum up. It seems like white gets little in the line. At best some very mild pressure.


About NR's 4.d3 Jaenisch lines. I have not taken a deeper look yet. An immediate observation though was that in the line with (6...d6) and (8...Bd7) maybe (14...Rd8) is more natural than (14...Qg6).

Have a nice day.

Hi,

I wasn't able to find much of an edge for White after 4. Nc3 and 8... Bg7. But maybe there is something that I just can't see.

Anyway, 4. d3 is in my opinion the best move and lately, it has been played the most and it seems like there is a slight advantage there for White. 6... Bc5 is the main move but it looks like White is easily better there. After 6... d6, I have 8. Qd3 here and if anyone can refute that, then I will post analysis on 8. Be3. Of course, there are sidelines also like 4... Nf6, but those aren't really serious and if no one has a problem with the analysis on the main lines, then I can post the sidelines also.

Hello.

Well. 12.Nxe5 looks like it should not lead to advantage. Good find (of 11...c6) Mr. Bücker.


This is sort of problematic because it leaves the continuation mentioned in the post before last one

(11.Bf4 c6 12.Bd3 Nxd3+ 13.Qxd3)
or
not (11.Bf4)

As the ways forward in search of the advantage after 8.d4. I will probably check these a bit more, though I doubt there will be much of any advantage to be seen.

Edit: Actually have looked a bit at 8.d4 Bg7 9.c4!? as well which may be the next line to try and find advantage in.

Have a nice day.

Confused_by_Theory wrote on 03/08/16 at 10:30:45:

Black can play 10...Ne5 11.Bf4 c6 (instead of your 11...Qd6), e.g. 12.Bd3 Nxd3+ 13.Qxd3 c5 14.b4 b6. After regaining the pawn e6, Black continues Rfe8, Qd7, maybe Bf8 (if necessary). Looks = to me.