It's a possoble way for W get the london sistem formation. B can conter this plan in several different ways. Can you describe your opening repertoire? This might help deciding the most suitable line for you.
d4, d5, bf4?
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Zenrat, the setup you show is very playable but works better against the move order 1.d4 2.Nf3 3.Bf4.
The move order 1.d4 2.Bf4 is designed to improve W chances against the same setup. The reason is a tactical detail:
-After 1.d4 d5 2.Nf3 Nf6 3.Bf4 c5 4.e3 Nc6 5.c3 Qb6 6.Qb3 c4 7.Qc2 Bf5! is bloody strong. W scores well under 50% here
-After 1.d4 d5 2.Bf4(the move order under examination) Nf6 3.e3 c5 4.c3 Nc6 5.Nd2 Qb6 6.Qb3 c4 7.Qc2 Bf5?? blunders a piece and W scores well against B alternatives.
That said deviations are possible; for example B might consider 5...cxd4!? in the second line when 6.exd4 is an exchange caro-kann and 6.cxd4 a bizarre exchange slav. B should be equal against both without much trouble, but the positions are not so exciting to play.
That setup is virtually winning against the Nf3 move order. Against 2.Bf4, it's still essentially the mainline, and critical test.
The fact that white fares better doesn't mean white fares well. Unless, as you suggest, black is foolish enough to drop a piece. (Which I do frequently, but nonetheless.)
I'm not suggesting that black has to drop a piece, it was only pointed out to illustate the difference between the variations.
I frankly disagree with your evaluation. W does quite well(not "better but still bad", but well)) if B plays Qb6 in the second line in my opinion. In my database he has a nice plus score. The entire point of my post above was to show how the setup with Qb6 in is not great at all in this move order, so i do not recommend it against 2.Bf4.
Frankly i also think that "B is virtually winning" in the first line is a brutal overstatement. If anything it might be that B has a slight edge.
hey ths is 10 moves game i played other(i,m playing black), 1d4, d5, 2 bf4, nf6 3 nf3, e6 4 c3, c5, 5 e3, nc6, 6 nd2 qb6, 7qb3 qxq, 8 axq, pxp, 9 exp, be7 10 b4 o-o
move 3 e6, here i thought about playng bf5 or c5, i played e5 out because i wanted to get my black bishop to b4 n q till b6 or a5 and then bring my knight to e4, this can work well sometimes if there king is,nt castled
I agree with both opinions above.
The language Zenrat uses is way too strong to describe black's advantage in both lines (if indeed black has an advantage).
But I also agree that the setup with c5, d5, Nc6, and Qb6 is black's best, even against the white move order that delays or omits Nf3. After 6...c4 7.Qc2, ...Bg4 is a tough nut for white to crack. Bf5 is out of play, but things aren't a lot rosier here.
It's just a long, equal, tough, slow positional slog for white after he moves that queenside bishop out without gaining any obvious positional plusses for it...if black decides to press the issue with Qb6.
But then, a long, equal, tough, slow positional slog may very well be what white is after if he's a Londoner. ;)
Possibly helpful:
Grandmaster Repertoire 11: Beating 1 d4 Sidelines by Boris Avrukh (2012)
https://web.archive.org/web/20140627001415/http://www.chesscafe.com/text/hansen164.pdf
http://www.qualitychess.co.uk/ebooks/GM11-1d4Sidelines-excerpt.pdf
Dealing with d4 Deviations by John Cox (2005)
https://web.archive.org/web/20140627032909/http://www.chesscafe.com/text/hansen89.pdf
Fighting the London System
http://www.chess-stars.com/resources/London_Contents.pdf
Playing 1.d4 d5
https://www.chess.com/blog/pfren/playing-1-d5-d5-a-classical-repertoire
https://www.qualitychess.co.uk/ebooks/Playing1d4d5-excerpt.pdf
A Practical Black Repertoire With d5, c6
http://www.chess-stars.com/resources/contents_black_rep_d5c61.pdf
hey guys need help on how to play against d4, d5, bf4? i belive it is the london sytem? i can,t find any games on chess games.com
cheers