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chris21 35 ( +1 | -1 )
Queens Gambit accepted. When playing the Queens Gambit after 1.d4 d5 2. c4 dxc4 3. Nf3... I have problems when my opponent plays b5! It must be an inferior move as I've never come accross it in my books but it certainly causes a mediocre player like myself problems. I find myself cramped for space on the queenside and I feel a bit naked over there. Any suggestions?
thegreatchampino 25 ( +1 | -1 )
QGA I'm pretty sure 3... b5 is an inferior move. Its better for black to just leave that pawn alone than to protect it. I think 4. a4 gets rid of it and if black further protects it, I think certain traps can arise from that position.
caldazar 35 ( +1 | -1 )
After 1. d4 d5 2. c4 dxc4 3. Nf3, 3... b5 is not really an inferior move since White can no longer exploit the open long diagonal with Qf3. It basically invites a transposition into a Slav setup with 4. a4 c6 5. e3. Black can keep the extra pawn in some cases but White usually gets enough piece activity and control of the center in return.
caldazar 19 ( +1 | -1 )
Addendum And to address the cramped nature of the queenside for White in some of these lines, one of the usual ways to remove the cramping effect of Black's pawns is to play a timely axb5 and then b3.
atrifix 27 ( +1 | -1 )
After e3, axb5 and b3 White regains the pawn with a slight positional advantage. If Black wants to break with dxc4 and b5 he should prepare it first (by c6 and a6 or e6). That said, the line is playable (the idea being ...a5 and ...b5-b4), but white will have a positional advantage.
chris21 23 ( +1 | -1 )
Thanks for the replys everyone!

Does dxc4 have to be played on the second move for the opening to be the queens gambit? Or, could it transpose from the queens gambit declined?

e.g 1.d4 d5 2. c4 e6 3. Nf3 dxc4 Would this be the queens gambit or QGD?
atrifix 12 ( +1 | -1 )
1. d4 d5 2. c4 e6 3. Nf3 dxc4 is considered the QGA. It certainly is not the QGD, because it was not declined, but it could transpose to several other things: for example, 4. Nc3 c6 is the semi-slav.
triangulator 6 ( +1 | -1 )
to avoid that try playing d4,d5 c4, cd, and e3, gets the pawn back and then play nf3
atrifix 13 ( +1 | -1 )
QGA 1. d4 d5 2. c4 dxc4 3. e3, of course, allows 3... e5, considered the best equalizing try for Black. By playing 3. Nf3 white probably wants to avoid the 3... e5 lines.
triangulator 7 ( +1 | -1 )
I thought e5 came after 3.e4, I have played e3 before nf3 and never seen e5
maykx 22 ( +1 | -1 )
Just a question I have the same feeling with chris21 thus, everytime I encounter 1. d4 d5 2. c4 dxc4 I immediately resort to 3. a4 to prevent b5. Is this a sound move?
maykx 7 ( +1 | -1 )
OR... 1. d4 d5 2. c4 dxc4 3. Nc3.....c6 or a6 then my next move is oftenly a4! Any comment on this?
caldazar 98 ( +1 | -1 )
Well, 1. d4 d5 2. c4 dxc4 3. a4 doesn't look so promising for White due to 3... c5 when White's center is crumbling.

After 1. d4 d5 2. c4 dxc4 3. Nc3 a6 or 3... c6, my feeling is that if Black wants to go to all that trouble just for a pawn, let him keep the darn thing and get on with matters of development with moves like Nf3 and e3/e4 (the opening has 'gambit' in the name for a reason, after all). If Black's queenside pawn mass starts to prove bothersome, White always has a4 and b3 at his disposal which usually recovers the pawn with a better position anyway. White then just has to be sure that he can live with a possible ...b4 by Black. Otherwise, if White insists on a guarantee to recover the pawn with 4. a4, Black can quickly counter in the center with ...c5, ...e5, or ...Nc6 as appropriate, which usually gives Black an easy game.

If you absolutely insist on maintaining material equality, then 3. Qa4+ is probably the best way to ensure that you'll recover the pawn, but then White holds no advantage at all in the resulting position.
atrifix 46 ( +1 | -1 )
First: 3... e5 can be played after almost any move other than 3. Nf3. That's why 3. Nf3 is played in the first place :)

I agree that 1. d4 d5 2. c4 dxc4 3. a4 is bad, but I think 3... e5 is even stronger. In fact, Black may even be able to hold the pawn with an eventual ...Be6.

However, I disagree with the assessment of 1. d4 d5 2. c4 dxc4 3. Nc3 c6. In this case 4. a4 is a perfectly acceptable try for advantage, similar to the Slav. This variation is fairly common in GM practice, although 4. e4!? is probably more common.
maykx 31 ( +1 | -1 )
I encountered... ...both 3. ..c6 and ..e5 and resulted to exchange of Qs.

Anyway, you gave very interesting comments. Tnx caldazar and atrifix! I will try to play them next time.

Just a short note, though. How do you respond to Black's b4? I had encoutered it few months ago and I think I lost in that game. I think I replied by moving my Knight at a2.