Answers.Body: <p>In the Rossolimo proper,</p>
  
  <pre><code>[FEN ""]
  [Title "Rossolimo variation"]
  [Startply "5"]
  
  1. e4 c5 2. Nf3 Nc6 3. Bb5 g6
  </code></pre>
  
  <p>white usually holds back pawn to <code>d4</code> and doubles black pawns with <code>Bxc6</code>, or later builds a center with an eventual <code>c3</code> followed by <code>d4</code>.</p>
  
  <p>In the Open Sicilian,</p>
  
  <pre><code>[FEN ""]
  [Title "Open Sicilian"]
  [Startply "9"]
  
  1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nc6 5. Bb5?!
  </code></pre>
  
  <p>none of these plans are available, and <code>5. Bb5</code> doesn't make much sense. Besides, the bishop on <code>b5</code> is tactically vulnerable to a later black <code>Qa5+</code> or <code>Qb6</code>.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-10-24T14:53:16.320Z
Answers.Text: I would just like to add, in response to the phrasing of the original question, that it is not "impossible" to transpose to the Rossolimo by playing 5.Bb5 (it's as if you started the Rossolimo and then played 4.d4 cxd4 5.Nxd4), and it's not even terrible; it's just not very good.
Answers.UserDisplayName: dfan
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-10-24T14:49:07.117Z
Answers.LastActivityDate: 2015-10-24T14:49:07.117Z
Answers.UserDisplayName: Dag Oskar Madsen
Body: <p>After
  1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nc6</p>
  
  <p>Why is the Rossolimo line impossible for white?</p>
  
  <pre><code>[fen ""]
  1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nc6
  </code></pre>
  
Tags: <opening><sicilian-defense>
Title: Why does the Hyper Accelerated Dragon avoid the Rossolimo?
ThreadText: # Why does the Hyper Accelerated Dragon avoid the Rossolimo?
  
  (Asked by: username_0 on 2015-10-24)
  
  After
  1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nc6
  Why is the Rossolimo line impossible for white?
  [fen ""]
  1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nc6
  
  **Tags:** opening, sicilian-defense
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2015-10-24. Score: 4 | Accepted answer
  
  In the Rossolimo proper,
  [FEN ""]
  [Title "Rossolimo variation"]
  [Startply "5"]
  
  1. e4 c5 2. Nf3 Nc6 3. Bb5 g6
  
  white usually holds back pawn to d4 and doubles black pawns with Bxc6, or later builds a center with an eventual c3 followed by d4.
  In the Open Sicilian,
  [FEN ""]
  [Title "Open Sicilian"]
  [Startply "9"]
  
  1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nc6 5. Bb5?!
  
  none of these plans are available, and 5. Bb5 doesn't make much sense. Besides, the bishop on b5 is tactically vulnerable to a later black Qa5+ or Qb6.
  
  > **Comments:**
  > **username_2**: I would just like to add, in response to the phrasing of the original question, that it is not "impossible" to transpose to the Rossolimo by playing 5.Bb5 (it's as if you started the Rossolimo and then played 4.d4 cxd4 5.Nxd4), and it's not even terrible; it's just not very good.  
  
  ---
  
  