Answers.Body: <p>You can take the idea from your example and add one more pin by putting the pieces closer together and shifting them down so that it becomes possible to pin the last pinning rook:</p>
  <p><a href="https://i.sstatic.net/Y8iOI.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/Y8iOI.png" alt="enter image description here" /></a></p>
  <p>Then you have four pinned pieces, using a diagonal and a rank/file per king. Intuitively, I don't expect it will be possible to have a longer chain, but I'd love to see a counterexample!</p>
  <p>Regarding the second part of the question, yes, it is possible for all the non-king pieces to be pinned. Not a very exciting example, but imagine the two kings and a rook of each color all on a single file, so that the rooks pin each other:</p>
  <p><a href="https://i.sstatic.net/i8xPw.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/i8xPw.png" alt="enter image description here" /></a></p>
  <p>I can't think of a way of doing this with more than two pieces.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2022-09-01T14:57:40.257Z
Answers.LastActivityDate: 2022-09-01T14:57:40.257Z
Answers.UserDisplayName: itub
Body: <p>How long a &quot;Pinned piece chain&quot; can you make?
  Here a &quot;Pinned piece chain&quot; is a chain of pieces where each is pinned by the last.</p>
  <p><a href="https://i.sstatic.net/MPspU.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/MPspU.png" alt="Here fore eample" /></a></p>
  <p>Here for example is a chain of length 3.
  The knight is pinned by the queen, which is pinned by the rook which is pinned by a another rook.</p>
  <p>Also, is it possible for ALL the non king pieces to be pinned?</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2022-09-01T19:35:53.087Z
Comments.Text: Does it count only if pieces are pinned to the King?
Comments.UserDisplayName: Andrew Chin
Tags: <problems><pins>
Title: Pinned piece chain
ThreadText: # Pinned piece chain
  
  (Asked by: username_0 on 2022-09-01)
  
  How long a "Pinned piece chain" can you make?
  Here a "Pinned piece chain" is a chain of pieces where each is pinned by the last.
  
  [![Here fore eample](https://i.sstatic.net/MPspU.png)](https://i.sstatic.net/MPspU.png)
  
  Here for example is a chain of length 3.
  The knight is pinned by the queen, which is pinned by the rook which is pinned by a another rook.
  
  Also, is it possible for ALL the non king pieces to be pinned?
  
  **Tags:** problems, pins
  
  > **Comments:**
  > **username_1**: Does it count only if pieces are pinned to the King?  
  
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  ## 1 answers
  
  ### Answer by username_2 on 2022-09-01. Score: 3
  
  You can take the idea from your example and add one more pin by putting the pieces closer together and shifting them down so that it becomes possible to pin the last pinning rook:
  
  [![enter image description here](https://i.sstatic.net/Y8iOI.png)](https://i.sstatic.net/Y8iOI.png)
  
  Then you have four pinned pieces, using a diagonal and a rank/file per king. Intuitively, I don't expect it will be possible to have a longer chain, but I'd love to see a counterexample!
  
  Regarding the second part of the question, yes, it is possible for all the non-king pieces to be pinned. Not a very exciting example, but imagine the two kings and a rook of each color all on a single file, so that the rooks pin each other:
  
  [![enter image description here](https://i.sstatic.net/i8xPw.png)](https://i.sstatic.net/i8xPw.png)
  
  I can't think of a way of doing this with more than two pieces.
  
  
  ---
  
  