15...Rfd8 and not Rfc8, Teyko, read me better, where, in the same spirit of your last post, "Black is completely winning, a solid pawn up" 

I am not at home these days and I cannot use my ADSL connection neither am I in the mood of analysing the BDG.
We shall resume this interesting discussion in september.

This is the moves in 9. Be3

GM Prie,Tommy - -1.d4 d5 2.e4 dxe4 3.Nc3 e5 4.Qh5 Nc6 5.dxe5 Bb4 6.Bd2 g6 7.Qe2 Nd4 8.Qd1 Bf5 9.Be3 9...Nc6 10.Bb5 Nge7 11.Nge2 0–0 12.a3 Bxc3+ 13.Nxc3 Nxe5 14.Bh6 14...Qxd1+ 15.Rxd1 Rfc8 16.Bf4 

The Blackmar Diemar lives in light of the Lemberger Countergambit. Now if I can only solve the Hubsch.

Dear BDG-ers, dear Eric,
    sorry for delay in our discussion, analysis take some time to be correct and sound. Finally, have a look on this lines, which seems o.k. White has an advantage here. 

(1) BDG - Lemberger with 4..Nc6 [B01]
home, 09.09.2003
[Analysis by Rajmund Emanuel ]

/ B01 or D00 1.d4 d5 2.e4 / - 1.e4 d5 2.d4! dxe4 3.Nc3 e5 4.Nge2! Nc6 It has been mentioned almost like the refutation of BDG on the www.chesspublishing.com web site... 5.d5 Nce7 6.Ng3 Nf6 7.Bc4 c6 8.Bg5! Nfxd5 as recommended by GM Eric Prie 9.Ngxe4 [9.Qh5!? is an interesting try, but black has strong continuation with Qb6! 10.Ngxe4 Be6! 11.Nd6+ Kd7 12.Nde4 and now, he/she is able to hold the position by Rd8, Kc8 manouvre and the position remains rougly equal then.] 

9...f5 

A) 9...Bf5 10.Qf3 f6 
(10...Nxc3 11.Nxc3 Qd4 (11...f6 12.Be3 Bxc2?! as far as I remember this move has never been good for black in BDG (12...Qc8 13.0–0 with more than good compensation) 13.Qe2 Bg6 14.0–0 (or even 14.Rd1!? Qa5 15.h4! Nf5 16.h5 Nxe3 17.fxe3 Bf5 18.0–0 e4 following two spectacular moves by ChessTiger2.0 19.Nb5!! Bc8 20.b4! Qb6 21.h6 g6 22.Rxf6+-) 14...Qa5 15.Rfd1 Nf5 16.Qg4 Bb4 17.Nd5! Kf8 18.Nxb4 Nxe3 19.fxe3 Qxb4 20.Rd7 Re8 21.Rc7±) 12.Be2!? f6 13.Be3 Qd6 14.0–0 with initiative) 
11.0–0–0 Bxe4 (11...fxg5 12.Nxd5! cxd5 13.Rxd5 Nxd5 14.Qxf5 Qe7 15.Rd1!+-) 12.Nxe4 fxg5 13.Nxg5 Qa5 14.Qf7+ Kd7 15.Bb3 Kc7 16.Ne6+ Kb6 17.c4 Nb4 18.c5+ Ka6 19.a3 (19.Rd7 Rc8 20.Kb1±) 19...Nbd5 20.Bc4+ b5 21.Bxd5+-; 

B) 9...f6?! 10.Qh5+! (spectacular, but not the best  is 10.Bxf6?! gxf6 11.Nxf6+ Nxf6! now, white is winning queen with a well-known motif, but the position remains very unclear to me (but certainly not 11...Kf7? 12.Qf3‚ which gives white strong attack) 12.Bf7+ Kxf7 13.Qxd8 Rg8 unclear) 10...Ng6 11.0–0–0‚ with strong attack e.g. 11...Be6 (11...fxg5 12.Nxd5 cxd5 13.Rxd5 Qc7 14.Bb5+ Kf7 15.Nxg5++-) 12.Bxf6 gxf6 13.Bxd5 cxd5 14.Nxd5 Bxd5 15.Rxd5 Qe7 16.Rhd1±] 

10.Ng3 Qa5 [10...Nxc3?? 11.Bf7+! Kxf7 12.Qxd8+-; 10...f4?! 11.Nge4 Bf5 12.0–0± black is tied up]

11.0–0 Nxc3 12.bxc3 Nd5 [12...Qxc3 13.Bb3 (13.Qh5+?! g6 14.Qh4 h6! 15.Bf6 Rh7 16.Rfe1 Qd4 17.Qxd4 exd4 18.Bxd4=) 13...Qd4 14.Qe2!‚ with attack e.g. 14...Qg4? 15.Qxe5!! spectacular move, bishop is forbidden 15...Qxg5 16.Ne4!+-] 13.Re1 Bd6 14.Bb3±


However, I´ve found one line where there is only = for white. It is on move 10, though black has to make two strong moves in a row to hold position and even after them the position is o.k. for practical game purposes, from the theoretical point of view, it is not enough. For those who want to win even in correspondence play, enjoy improvement over the line at:

http://www.mujweb.cz/www/rajmunde/horizon.htm

For great Bogoljubow analysis click here:

http://www.mujweb.cz/www/rajmunde/ec_ena_bo.htm

Enjoy it and have a good time.
And Eric, I´m looking forward to your answer and I hope you have a good time at Mitropa Cup.

Patrik

Quote:


As you know, GM Prie I am having trouble making the 9. Rc1 line work, but I believe I have found a tenable continuation for white. 

11. Bg5 f6! 12. exf6!?

Quote:

In the 9.Be3 line I play 14. Bh6

In the 9. Rc1 line I play 12. Qxd4

Bonjour Eric!

    in my game you suggest after 4.Nge2 Nc6 5.d5 Nce7 6.Ng3 f5 7.Bc4 c6 (instead of a6) and after 8.Bg5 Nfxd5, but in this position, there is no knight on f6 yet. Do you mean 6.Ng3 Nf6!? 7.Bc4 c6 8.Bg5 Nfxd5 line or 6.Ng3 f5 7.Bc4 Nf6 line? We can choose line and then I can share my analysis with you, it looks white has an upper hand in these positions.

Sincerely yours

7 violets

Hmm ... This one move at a time drip-feed is getting a bit wearing ... any chance you guys can string more than a couple of moves of this together?! 

I had the wrong position set up on the board. it should be 11. Bg5 in the 9. Rc1 line. I don't want to get into Nf3+.