Answers.Body: <p>It is still possible to castle if the <strong>rook</strong> passes through squares that are attacked(under control by opponent's rook e.g. as you say), it's only in the case of the <strong>king</strong> that such scenario prohibits you from castling.</p>
  
  <p>Have a look at the post Cleveland has suggested in the comments.</p>
  
  <p>Here's an example anyway: </p>
  
  <pre><code>[Title "O-O-O"]
  [StartFlipped "0"]
  [fen "2bk2nr/p1p2ppp/2p5/2p5/2P1P3/2N5/Pr3PPP/R3KB1R w KQkq - 0 1"]
  
  1.O-O-O+
  </code></pre>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2014-09-12T17:15:15.867Z
Answers.LastActivityDate: 2014-09-12T17:15:15.867Z
Answers.UserDisplayName: Ellie
Body: <p>I was playing a game of chess and I was playing black. I had a rook on b2. I had control of the b1 square. My opponent white did not have any pawns in the second  rank. My opponent; white castled queenside. Is it illegal for his rook to pass the b1 square considering his rook passed the b1 square I had control of. Wouldn't it make this castle move illegal on white's part?</p>
  
Tags: <rules><castling>
Title: Is castling legal regarding rooks passing over attacked squares?
ThreadText: # Is castling legal regarding rooks passing over attacked squares?
  
  (Asked by: username_0 on 2014-09-12)
  
  I was playing a game of chess and I was playing black. I had a rook on b2. I had control of the b1 square. My opponent white did not have any pawns in the second rank. My opponent; white castled queenside. Is it illegal for his rook to pass the b1 square considering his rook passed the b1 square I had control of. Wouldn't it make this castle move illegal on white's part?
  
  **Tags:** rules, castling
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2014-09-12. Score: 8
  
  It is still possible to castle if the **rook** passes through squares that are attacked(under control by opponent's rook e.g. as you say), it's only in the case of the **king** that such scenario prohibits you from castling.
  
  Have a look at the post Cleveland has suggested in the comments.
  
  Here's an example anyway:
  
  ```
  [Title "O-O-O"]
  [StartFlipped "0"]
  [fen "2bk2nr/p1p2ppp/2p5/2p5/2P1P3/2N5/Pr3PPP/R3KB1R w KQkq - 0 1"]
  
  1.O-O-O+
  
  ```
  
  
  ---
  
  