Answers.Body: <p>After giving the issue some thought I think White has better prospects with:</p>
  
  <pre><code>[fen ""]
  1. d4 d5 2. c4 dxc4 3. e3 b5 4. a4 Bd7 5. axb5 Bxb5 6. Nc3 *
  </code></pre>
  
  <p>At the very least a tempo is won. If Black is not very careful as to where he retreats his Bishop he may very well lose material in addition to the c4 pawn which is doomed by all accounts.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2014-09-28T17:26:57.223Z
Answers.Text: And after 6... Ba6, `7.Qf3 c6 {The only reply that doesn't instantly lose the rook.} 8.Rxa6 Nxa6 9.Qxc6+ Qd7 10.Qxa8+ Qd8 11.Qc6+ Qd7 12.Qxa6`
Answers.UserDisplayName: BOY
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-09-24T00:09:37.160Z
Answers.Text: I didn't see an immediate refutation to ...c6 but b3! will allow Nxb5 and rounding up the c-pawn(s) soon enough. Fritz gives White a huge advantage here because White can get a lot of pressure before Black castles due to the huge development lead. It isn't just that the a-pawn is doomed. The two bishops are big, too, and no matter where the black king bishop develops, White can threaten e4-e5 on Bd6 or Nf3-e5 on Be7.
  
  So the move is not just positionally suspect. The boomerang isn't immediate, but it's pretty clear.
Answers.UserDisplayName: aschultz
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2014-02-04T22:24:34.873Z
Answers.Text: You are correct, `Nc3` is better option. When I wrote my answer I focused to show you **that you can always return the pawn** and `Bxc4` demonstrated it better than `Nc3`. It is a **standard motif in QGA for White** so I thought it would be more useful to you if you know it, than not. +1 from me. Best regards.
Answers.UserDisplayName: AlwaysLearningNewStuff
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2014-02-05T04:30:10.747Z
Answers.Text: BTW, if you wish to unaccept my answer and accept yours know that I will **not be offended.** My main purpose was to show you a standard tactical motif that is use in many variations to return the pawn. Best regards.
Answers.UserDisplayName: AlwaysLearningNewStuff
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2014-02-04T19:30:15.560Z
Answers.LastActivityDate: 2014-02-04T19:30:15.560Z
Answers.UserDisplayName: Marcus Junius Brutus
Answers.Body: <pre><code>[fen ""]
  
  1.d4 d5 2.c4 dxc4 3.e3 b5? 4. a4! Bd7? 5.axb5! Bxb5 6.Bxc4! Bxc4 7.Qxa4+ 
  </code></pre>
  
  <p>and White gets back the bishop with the advantage ( no matter what Black plays <code>Qxc4</code> is White's next move ).</p>
  
  <p>Hopefully this answer helped.</p>
  
  <p>Best regards.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2014-01-25T16:43:25.097Z
Answers.Text: @bof: Both your suggestions are good. I just like the fact that my queen is active and I also exchange the only active piece Black has. Queen can also have decisive role in pressuring weak queen side pawns. I guess that with my move White wishes to start developing initiative immediately, while your suggestions tend to positionally strengthen White first, postponing the active moves for a while. Best regards.
Answers.UserDisplayName: AlwaysLearningNewStuff
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2014-01-27T18:02:43.520Z
Answers.Text: @BlueMoon: If you wish to nitpick... :)
Answers.UserDisplayName: AlwaysLearningNewStuff
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2014-01-25T14:49:41.373Z
Answers.LastActivityDate: 2014-01-25T14:49:41.373Z
Answers.UserDisplayName: AlwaysLearningNewStuff
Body: <p>In the following opening:</p>
  
  <pre><code>[FEN ""]
  1. d4 d5 2. c4 dxc4 3. e3 b5 4. a4
  </code></pre>
  
  <p>There is a well-known trap if Black tries to defend the c file pawn with:</p>
  
  <pre><code>[FEN ""]
  1. d4 d5 2. c4 dxc4 3. e3 b5 4. a4 c6
  </code></pre>
  
  <p>However I got the following played against me:</p>
  
  <pre><code>[FEN ""]
  1. d4 d5 2. c4 dxc4 3. e3 b5 4. a4 Bd7
  </code></pre>
  
  <p>How should White respond?</p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2014-01-25T15:10:04.557Z
Comments.Text: What did you find when checking the variation with an engine?
Comments.UserDisplayName: Rafiek
Tags: <opening><queens-gambit-accepted>
Title: Queen's Gambit Accepted with black trying to defend the c file pawn with 4. ... Bd7
ThreadText: # Queen's Gambit Accepted with black trying to defend the c file pawn with 4. ... Bd7
  
  (Asked by: username_0 on 2014-01-25)
  
  In the following opening:
  
  ```
  [FEN ""]
  1. d4 d5 2. c4 dxc4 3. e3 b5 4. a4
  
  ```
  
  There is a well-known trap if Black tries to defend the c file pawn with:
  
  ```
  [FEN ""]
  1. d4 d5 2. c4 dxc4 3. e3 b5 4. a4 c6
  
  ```
  
  However I got the following played against me:
  
  ```
  [FEN ""]
  1. d4 d5 2. c4 dxc4 3. e3 b5 4. a4 Bd7
  
  ```
  
  How should White respond?
  
  **Tags:** opening, queens-gambit-accepted
  
  > **Comments:**
  > **username_1**: What did you find when checking the variation with an engine?  
  
  ---
  
  ## 2 answers
  
  ### Answer by username_0 on 2014-02-04. Score: 3 | Accepted answer
  
  After giving the issue some thought I think White has better prospects with:
  
  ```
  [fen ""]
  1. d4 d5 2. c4 dxc4 3. e3 b5 4. a4 Bd7 5. axb5 Bxb5 6. Nc3 *
  
  ```
  
  At the very least a tempo is won. If Black is not very careful as to where he retreats his Bishop he may very well lose material in addition to the c4 pawn which is doomed by all accounts.
  
  > **Comments:**
  > **username_4**: You are correct, `Nc3` is better option. When I wrote my answer I focused to show you **that you can always return the pawn** and `Bxc4` demonstrated it better than `Nc3`. It is a **standard motif in QGA for White** so I thought it would be more useful to you if you know it, than not. +1 from me. Best regards.  
  > **username_4**: BTW, if you wish to unaccept my answer and accept yours know that I will **not be offended.** My main purpose was to show you a standard tactical motif that is use in many variations to return the pawn. Best regards.  
  > **username_2**: And after 6... Ba6, `7.Qf3 c6 {The only reply that doesn't instantly lose the rook.} 8.Rxa6 Nxa6 9.Qxc6+ Qd7 10.Qxa8+ Qd8 11.Qc6+ Qd7 12.Qxa6`  
  > **username_3**: I didn't see an immediate refutation to ...c6 but b3! will allow Nxb5 and rounding up the c-pawn(s) soon enough. Fritz gives White a huge advantage here because White can get a lot of pressure before Black castles due to the huge development lead. It isn't just that the a-pawn is doomed. The two bishops are big, too, and no matter where the black king bishop develops, White can threaten e4-e5 on Bd6 or Nf3-e5 on Be7.  So the move is not just positionally suspect. The boomerang isn't immediate, but it's pretty clear.  
  
  ---
  
  ### Answer by username_4 on 2014-01-25. Score: 4
  
  ```
  [fen ""]
  
  1.d4 d5 2.c4 dxc4 3.e3 b5? 4. a4! Bd7? 5.axb5! Bxb5 6.Bxc4! Bxc4 7.Qxa4+ 
  
  ```
  
  and White gets back the bishop with the advantage ( no matter what Black plays `Qxc4` is White's next move ).
  
  Hopefully this answer helped.
  
  Best regards.
  
  > **Comments:**
  > **username_4**: @bof: Both your suggestions are good. I just like the fact that my queen is active and I also exchange the only active piece Black has. Queen can also have decisive role in pressuring weak queen side pawns. I guess that with my move White wishes to start developing initiative immediately, while your suggestions tend to positionally strengthen White first, postponing the active moves for a while. Best regards.  
  > **username_4**: @BlueMoon: If you wish to nitpick... :)  
  
  ---
  
  