TN wrote on 12/05/11 at 04:29:35:


As I mentioned in the main thread, there might be nothing for Black in the 20.Bd6 line, since it was played by Giri against Smeets in the same tournament, but before the Nakamura game. I think this line is recommended by Schandorff, and Vigorito says Black should avoid it. Still Smeets played it (20.Bd6 Bf8 21.Be7) and was happy to repeat later on when facing Nakamura. Judging by the game against Giri, I guess it is tenable, but I haven't analyzed it in depth.

I have updated the analysis from the other thread, plus done some analysis myself on 9.e5 Nh5. See the PGN.

PS Reminder to self, add Gewgaw's analysis to the file later.

Markovich wrote on 12/02/11 at 01:28:17:


Not according to my definition of 'theory', which is the number of games played.

I have 378611 games with the Spanish (C60-C99) in my reference database, versus 11455 in the Botvinnik Semi-Slav (D44). That's 33 times less theory in the Botvinnik compared to the Spanish.

1.d4 d5 2.c4 (D06-D69) occurs in 730523 games in my reference database. That's nearly twice as much as the Spanish, but like in your Spanish repertoire project (which is superb by the way!), this number decreases substantially when you are only playing one line against everything Black can do. 

Only time will tell if the project gets completed or not, but a number of White repertoire books have been written on 1.d4 d5 2.c4 so it's definitely possible. F22 wrote on 12/02/11 at 04:28:59:


This thread is a sub-thread of the Queen's Gambit Repertoire thread (http://www.chesspub.com/cgi-bin/yabb2/YaBB.pl?num=1322298439/45), so it would be advisable to read at least the OP of that thread. 

I picked 5.Bg5 and no one has disagreed, though BPaulsen did suggest the Meran/Anti-Meran lines as also offering chances of an advantage. 

The Yearbook 100 survey by Van der Tak on 11...Rg8/16.Bg2 would suggest that it's too early to make such a definitive conclusion, but if you are right, there is always 11.ef6.

TN wrote on 11/28/11 at 14:05:50:

Oh, God. Thats about ten times bigger than the mere Spanish, do you know? Do we have the manpower?

gewgaw wrote on 12/01/11 at 21:38:47:


I have entered this survey into my computer, however the theory has since advanced in this line. 

fling wrote on 12/01/11 at 22:46:19:


Would it be possible to give the moves preceding 25.Kg2 as well? Thanks.

fling wrote on 12/01/11 at 22:47:35:


Thanks for asking about the project F22, and I look forward to your contributions! 

fling wrote on 12/01/11 at 13:40:22:


I just looked at this line, and it seems to me that after 25.Kxg2, the position is not as clear as I thought it was. Black can play 25 ...Qe4+ 26.f3 Qe5! 27.Rc4 Qxb2+ 28.Bc2 Qxb7. White should be better, but the exposed kings might mean that it will be hard to play for a win for any side, or can White coordinate the rooks? Houdini suggests 25.Nd6 with a clear advantage, though this is very complicated. Basically, Black will have a hard time not getting mated without giving up more material.

TN wrote on 12/01/11 at 12:03:11:


If I recall correctly 9. Bg3 just transposes to an Anti-Moscow line in which Black should not have any problems after: 9. ... Nd5! 10. Be2 Bb7.

Quote:


TN did post a refutation of this line. The line is rather sharp, though, with plenty of ways for White to go wrong, but I don't think it is considered sound since many years back.