Answers.Body: <p><a href="https://i.sstatic.net/jb3tU.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/jb3tU.png" alt="Qa3, Rb1, Rc4, Bd2, Nd5, Ne2, Be5" /></a></p>
  <p>Qa3, Rb1, Rc4, Bd2, Nd5, Ne2, Be5</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2022-03-15T19:42:41.407Z
Answers.LastActivityDate: 2022-03-16T15:37:50.150Z
Answers.LastEditDate: 2022-03-16T15:37:50.150Z
Answers.UserDisplayName: Glorfindel
Answers.Body: <p>Another solution (not clearly equivalent to Glorfindel's)</p>
  <p><a href="https://i.sstatic.net/uO6ji.png" rel="noreferrer"><img src="https://i.sstatic.net/uO6ji.png" alt="enter image description here" /></a></p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2022-03-16T09:56:32.787Z
Answers.LastActivityDate: 2022-03-16T15:38:09.623Z
Answers.LastEditDate: 2022-03-16T15:38:09.623Z
Answers.UserDisplayName: gdelab
Answers.Body: <p>Generated 12 positions using python-chess. Here are the links from lichess.</p>
  <ul>
  <li><a href="https://lichess.org/editor/8/8/8/2Q5/R7/3R4/1B2N3/1N2B3_w_-_-" rel="nofollow noreferrer">https://lichess.org/editor/8/8/8/2Q5/R7/3R4/1B2N3/1N2B3_w_-_-</a></li>
  <li><a href="https://lichess.org/editor/8/8/8/1BN5/3R4/R7/1NB5/4Q3_w_-_-" rel="nofollow noreferrer">https://lichess.org/editor/8/8/8/1BN5/3R4/R7/1NB5/4Q3_w_-_-</a></li>
  <li><a href="https://lichess.org/editor/8/8/8/2R5/Q7/3R4/1B2N3/1N2B3_w_-_-" rel="nofollow noreferrer">https://lichess.org/editor/8/8/8/2R5/Q7/3R4/1B2N3/1N2B3_w_-_-</a></li>
  <li><a href="https://lichess.org/editor/8/8/8/2R5/1N2B3/1B2N3/3R4/Q7_w_-_-" rel="nofollow noreferrer">https://lichess.org/editor/8/8/8/2R5/1N2B3/1B2N3/3R4/Q7_w_-_-</a></li>
  <li><a href="https://lichess.org/editor/8/8/8/Q7/2BN4/4R3/1R6/2NB4_w_-_-" rel="nofollow noreferrer">https://lichess.org/editor/8/8/8/Q7/2BN4/4R3/1R6/2NB4_w_-_-</a></li>
  <li><a href="https://lichess.org/editor/8/8/8/4Q3/1NB5/R7/3R4/1BN5_w_-_-" rel="nofollow noreferrer">https://lichess.org/editor/8/8/8/4Q3/1NB5/R7/3R4/1BN5_w_-_-</a></li>
  <li><a href="https://lichess.org/editor/8/8/8/4Q3/1R6/N2B4/B2N4/2R5_w_-_-" rel="nofollow noreferrer">https://lichess.org/editor/8/8/8/4Q3/1R6/N2B4/B2N4/2R5_w_-_-</a></li>
  <li><a href="https://lichess.org/editor/8/8/8/1Q6/3BN3/R7/2R5/3NB3_w_-_-" rel="nofollow noreferrer">https://lichess.org/editor/8/8/8/1Q6/3BN3/R7/2R5/3NB3_w_-_-</a></li>
  <li><a href="https://lichess.org/editor/8/8/8/2Q5/4R3/1R6/N2B4/B2N4_w_-_-" rel="nofollow noreferrer">https://lichess.org/editor/8/8/8/2Q5/4R3/1R6/N2B4/B2N4_w_-_-</a></li>
  <li><a href="https://lichess.org/editor/8/8/8/3NB3/2R5/R7/3BN3/1Q6_w_-_-" rel="nofollow noreferrer">https://lichess.org/editor/8/8/8/3NB3/2R5/R7/3BN3/1Q6_w_-_-</a></li>
  <li><a href="https://lichess.org/editor/8/8/8/3R4/NB6/4Q3/2R5/BN6_w_-_-" rel="nofollow noreferrer">https://lichess.org/editor/8/8/8/3R4/NB6/4Q3/2R5/BN6_w_-_-</a></li>
  <li><a href="https://lichess.org/editor/8/8/8/2NB4/1R6/4R3/2BN4/Q7_w_-_-" rel="nofollow noreferrer">https://lichess.org/editor/8/8/8/2NB4/1R6/4R3/2BN4/Q7_w_-_-</a></li>
  </ul>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2022-03-17T09:39:50.867Z
Answers.LastActivityDate: 2022-03-17T11:48:26.573Z
Answers.LastEditDate: 2022-03-17T11:48:26.573Z
Answers.UserDisplayName: ferdy
Answers.Body: <p>For the sake of completeness, I used <a href="https://github.com/kdeldycke/chessboard" rel="nofollow noreferrer"><code>chessboard</code></a>, a Python &quot;CLI to solve combinatoric chess puzzles&quot;.</p>
  <p><code>chessboard solve --length=5 --height=5 --queen=1 --bishop=2 --rook=2 --knight=2</code></p>
  <p>outputs 24 boards, corresponding to 3 unique solutions, rotated or mirrored.</p>
  <p>The queen must be on the edge of the board, but it can be anywhere along those edges (16 squares). There are 2 possible solutions if the queen is in the corner or in the middle square along the edge, for a total of 24 solutions.</p>
  <p>Here's the output:</p>
  <pre><code>┌───┬───┬───┬───┬───┐
  │ ♛ │   │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♜ │   │
  ├───┼───┼───┼───┼───┤
  │   │ ♝ │   │   │ ♞ │
  ├───┼───┼───┼───┼───┤
  │   │ ♞ │   │   │ ♝ │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♜ │   │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │ ♛ │   │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♝ │ ♞ │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │   │ ♜ │
  ├───┼───┼───┼───┼───┤
  │   │ ♜ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♞ │ ♝ │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │ ♛ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♝ │ ♞ │
  ├───┼───┼───┼───┼───┤
  │ ♜ │   │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♜ │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♞ │ ♝ │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │   │ ♛ │   │   │
  ├───┼───┼───┼───┼───┤
  │ ♜ │   │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♜ │   │
  ├───┼───┼───┼───┼───┤
  │   │ ♝ │   │   │ ♞ │
  ├───┼───┼───┼───┼───┤
  │   │ ♞ │   │   │ ♝ │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │   │ ♛ │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │   │ ♜ │
  ├───┼───┼───┼───┼───┤
  │   │ ♜ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │ ♞ │   │   │ ♝ │   │
  ├───┼───┼───┼───┼───┤
  │ ♝ │   │   │ ♞ │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │   │   │ ♛ │   │
  ├───┼───┼───┼───┼───┤
  │ ♞ │ ♝ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │   │ ♜ │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♜ │   │   │
  ├───┼───┼───┼───┼───┤
  │ ♝ │ ♞ │   │   │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │   │   │   │ ♛ │
  ├───┼───┼───┼───┼───┤
  │   │ ♜ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │ ♞ │   │   │ ♝ │   │
  ├───┼───┼───┼───┼───┤
  │ ♝ │   │   │ ♞ │   │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♜ │   │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │   │   │   │ ♛ │
  ├───┼───┼───┼───┼───┤
  │   │ ♞ │ ♝ │   │   │
  ├───┼───┼───┼───┼───┤
  │ ♜ │   │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♜ │   │
  ├───┼───┼───┼───┼───┤
  │   │ ♝ │ ♞ │   │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │   │ ♜ │   │   │
  ├───┼───┼───┼───┼───┤
  │ ♛ │   │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♜ │   │
  ├───┼───┼───┼───┼───┤
  │   │ ♝ │   │   │ ♞ │
  ├───┼───┼───┼───┼───┤
  │   │ ♞ │   │   │ ♝ │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │   │ ♜ │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │   │ ♛ │
  ├───┼───┼───┼───┼───┤
  │   │ ♜ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │ ♞ │   │   │ ♝ │   │
  ├───┼───┼───┼───┼───┤
  │ ♝ │   │   │ ♞ │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │ ♜ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♝ │ ♞ │
  ├───┼───┼───┼───┼───┤
  │ ♛ │   │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♜ │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♞ │ ♝ │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │   │   │ ♞ │ ♝ │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♜ │   │   │
  ├───┼───┼───┼───┼───┤
  │ ♛ │   │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♝ │ ♞ │
  ├───┼───┼───┼───┼───┤
  │   │ ♜ │   │   │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │   │   │ ♜ │   │
  ├───┼───┼───┼───┼───┤
  │ ♞ │ ♝ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │   │ ♛ │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♜ │   │   │
  ├───┼───┼───┼───┼───┤
  │ ♝ │ ♞ │   │   │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │ ♝ │ ♞ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♜ │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │   │ ♛ │
  ├───┼───┼───┼───┼───┤
  │ ♞ │ ♝ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♜ │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │ ♞ │   │   │ ♝ │
  ├───┼───┼───┼───┼───┤
  │   │ ♝ │   │   │ ♞ │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♜ │   │
  ├───┼───┼───┼───┼───┤
  │ ♛ │   │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♜ │   │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │ ♝ │   │   │ ♞ │   │
  ├───┼───┼───┼───┼───┤
  │ ♞ │   │   │ ♝ │   │
  ├───┼───┼───┼───┼───┤
  │   │ ♜ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │   │ ♛ │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♜ │   │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │   │ ♜ │   │   │
  ├───┼───┼───┼───┼───┤
  │   │ ♞ │   │   │ ♝ │
  ├───┼───┼───┼───┼───┤
  │   │ ♝ │   │   │ ♞ │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♜ │   │
  ├───┼───┼───┼───┼───┤
  │ ♛ │   │   │   │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │   │ ♞ │ ♝ │   │
  ├───┼───┼───┼───┼───┤
  │   │ ♜ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │   │ ♜ │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♝ │ ♞ │   │
  ├───┼───┼───┼───┼───┤
  │ ♛ │   │   │   │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │   │   │ ♞ │ ♝ │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♜ │   │   │
  ├───┼───┼───┼───┼───┤
  │ ♜ │   │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♝ │ ♞ │
  ├───┼───┼───┼───┼───┤
  │   │ ♛ │   │   │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │ ♝ │   │   │ ♞ │   │
  ├───┼───┼───┼───┼───┤
  │ ♞ │   │   │ ♝ │   │
  ├───┼───┼───┼───┼───┤
  │   │ ♜ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │   │ ♜ │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♛ │   │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │ ♞ │   │   │ ♝ │
  ├───┼───┼───┼───┼───┤
  │   │ ♝ │   │   │ ♞ │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♜ │   │
  ├───┼───┼───┼───┼───┤
  │ ♜ │   │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♛ │   │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │ ♝ │ ♞ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♜ │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │   │ ♜ │
  ├───┼───┼───┼───┼───┤
  │ ♞ │ ♝ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♛ │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │   │ ♜ │   │   │
  ├───┼───┼───┼───┼───┤
  │ ♝ │   │   │ ♞ │   │
  ├───┼───┼───┼───┼───┤
  │ ♞ │   │   │ ♝ │   │
  ├───┼───┼───┼───┼───┤
  │   │ ♜ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │   │ ♛ │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │ ♝ │ ♞ │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♜ │   │
  ├───┼───┼───┼───┼───┤
  │ ♜ │   │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │ ♞ │ ♝ │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │   │ ♛ │
  └───┴───┴───┴───┴───┘
  </code></pre>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2022-03-17T14:52:27.997Z
Answers.Text: So the different unique solutions (if we count symmetries) are only 3. Interesting
Answers.UserDisplayName: ypercubeᵀᴹ
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2022-03-18T03:18:15.040Z
Answers.Text: Unicode for the win!
Answers.UserDisplayName: Joshua
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2022-03-18T16:06:38.460Z
Answers.Text: I rolled back the last edit; it seems to depend on OS / browser / other settings [which version](https://chess.stackexchange.com/posts/39476/revisions) works better. For me (macOS, Safari/Firefox), revision 1 is correct.
Answers.UserDisplayName: Glorfindel
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2022-03-17T14:12:52.253Z
Answers.LastActivityDate: 2022-03-18T16:05:05.423Z
Answers.LastEditDate: 2022-03-18T16:05:05.423Z
Answers.UserDisplayName: Eric Duminil
Body: <p>How can I place one queen, two bishops, two knights, and two rooks, on a 5×5 chessboard without any of them attacking other pieces?</p>
  <p>After placing just queen and rooks, I can't make room for the other four pieces.</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2022-03-16T09:22:51.837Z
Comments.Text: It would be nice to include a reference to the source of this problem.
Comments.UserDisplayName: Stef
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2022-03-16T11:33:28.700Z
Comments.Text: I suppose the key is to realize the bishops can be placed on the same color as each other, since the puzzle doesn't specify otherwise.
Comments.UserDisplayName: L. Scott Johnson
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2022-03-16T14:17:09.553Z
Comments.Text: @Stef It was a task at my college for practice.
Comments.UserDisplayName: Josip Maričević
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2022-03-16T14:17:14.110Z
Comments.Text: @L.ScottJohnson There are no restrictions, except they can't attack other pieces.
Comments.UserDisplayName: Josip Maričević
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2022-03-16T14:39:22.763Z
Comments.Text: @JosipMaričević So you should try to do it - **for practice**.  You won't learn anything by giving your difficult work to other people to solve for you.
Comments.UserDisplayName: J...
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2022-03-16T14:50:51.333Z
Comments.Text: @J... I actually did it by myself, before I got an answer here.
  I think the **practice** is the wrong word for it.
Comments.UserDisplayName: Josip Maričević
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2022-03-17T22:50:59.897Z
Comments.Text: The constraints applicable to this problem are rather interesting. The queen and each rook control one rank and one file, meaning that three ranks and three files are totally controlled by those three pieces alone. This leaves only two ranks and two files for the other four pieces to inhabit - which is exactly enough space!
Comments.UserDisplayName: Kevin
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2022-03-18T10:57:04.313Z
Comments.Text: @Kevin: True. In every solution, bishops and knights are placed on a rectangle, on opposite corners.
Comments.UserDisplayName: Eric Duminil
Tags: <puzzles>
Title: How can I place certain pieces on a 5x5 chess board without any of them attacking each other?
ThreadText: # How can I place certain pieces on a 5x5 chess board without any of them attacking each other?
  
  (Asked by: username_0 on 2022-03-15)
  
  How can I place one queen, two bishops, two knights, and two rooks, on a 5×5 chessboard without any of them attacking other pieces?
  
  After placing just queen and rooks, I can't make room for the other four pieces.
  
  **Tags:** puzzles
  
  > **Comments:**
  > **username_1**: It would be nice to include a reference to the source of this problem.  
  > **username_2**: I suppose the key is to realize the bishops can be placed on the same color as each other, since the puzzle doesn't specify otherwise.  
  > **username_0**: @username_1 It was a task at my college for practice.  
  > **username_0**: @username_2 There are no restrictions, except they can't attack other pieces.  
  > **username_3**: @username_0 So you should try to do it - **for practice**.  You won't learn anything by giving your difficult work to other people to solve for you.  
  > **username_0**: @J... I actually did it by myself, before I got an answer here. I think the **practice** is the wrong word for it.  
  > **username_4**: The constraints applicable to this problem are rather interesting. The queen and each rook control one rank and one file, meaning that three ranks and three files are totally controlled by those three pieces alone. This leaves only two ranks and two files for the other four pieces to inhabit - which is exactly enough space!  
  > **username_5**: @username_4: True. In every solution, bishops and knights are placed on a rectangle, on opposite corners.  
  
  ---
  
  ## 4 answers
  
  ### Answer by username_5 on 2022-03-17. Score: 13 | Accepted answer
  
  For the sake of completeness, I used [`chessboard`](https://github.com/kdeldycke/chessboard), a Python "CLI to solve combinatoric chess puzzles".
  
  `chessboard solve --length=5 --height=5 --queen=1 --bishop=2 --rook=2 --knight=2`
  
  outputs 24 boards, corresponding to 3 unique solutions, rotated or mirrored.
  
  The queen must be on the edge of the board, but it can be anywhere along those edges (16 squares). There are 2 possible solutions if the queen is in the corner or in the middle square along the edge, for a total of 24 solutions.
  
  Here's the output:
  
  ```
  ┌───┬───┬───┬───┬───┐
  │ ♛ │   │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♜ │   │
  ├───┼───┼───┼───┼───┤
  │   │ ♝ │   │   │ ♞ │
  ├───┼───┼───┼───┼───┤
  │   │ ♞ │   │   │ ♝ │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♜ │   │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │ ♛ │   │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♝ │ ♞ │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │   │ ♜ │
  ├───┼───┼───┼───┼───┤
  │   │ ♜ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♞ │ ♝ │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │ ♛ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♝ │ ♞ │
  ├───┼───┼───┼───┼───┤
  │ ♜ │   │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♜ │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♞ │ ♝ │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │   │ ♛ │   │   │
  ├───┼───┼───┼───┼───┤
  │ ♜ │   │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♜ │   │
  ├───┼───┼───┼───┼───┤
  │   │ ♝ │   │   │ ♞ │
  ├───┼───┼───┼───┼───┤
  │   │ ♞ │   │   │ ♝ │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │   │ ♛ │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │   │ ♜ │
  ├───┼───┼───┼───┼───┤
  │   │ ♜ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │ ♞ │   │   │ ♝ │   │
  ├───┼───┼───┼───┼───┤
  │ ♝ │   │   │ ♞ │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │   │   │ ♛ │   │
  ├───┼───┼───┼───┼───┤
  │ ♞ │ ♝ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │   │ ♜ │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♜ │   │   │
  ├───┼───┼───┼───┼───┤
  │ ♝ │ ♞ │   │   │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │   │   │   │ ♛ │
  ├───┼───┼───┼───┼───┤
  │   │ ♜ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │ ♞ │   │   │ ♝ │   │
  ├───┼───┼───┼───┼───┤
  │ ♝ │   │   │ ♞ │   │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♜ │   │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │   │   │   │ ♛ │
  ├───┼───┼───┼───┼───┤
  │   │ ♞ │ ♝ │   │   │
  ├───┼───┼───┼───┼───┤
  │ ♜ │   │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♜ │   │
  ├───┼───┼───┼───┼───┤
  │   │ ♝ │ ♞ │   │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │   │ ♜ │   │   │
  ├───┼───┼───┼───┼───┤
  │ ♛ │   │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♜ │   │
  ├───┼───┼───┼───┼───┤
  │   │ ♝ │   │   │ ♞ │
  ├───┼───┼───┼───┼───┤
  │   │ ♞ │   │   │ ♝ │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │   │ ♜ │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │   │ ♛ │
  ├───┼───┼───┼───┼───┤
  │   │ ♜ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │ ♞ │   │   │ ♝ │   │
  ├───┼───┼───┼───┼───┤
  │ ♝ │   │   │ ♞ │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │ ♜ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♝ │ ♞ │
  ├───┼───┼───┼───┼───┤
  │ ♛ │   │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♜ │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♞ │ ♝ │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │   │   │ ♞ │ ♝ │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♜ │   │   │
  ├───┼───┼───┼───┼───┤
  │ ♛ │   │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♝ │ ♞ │
  ├───┼───┼───┼───┼───┤
  │   │ ♜ │   │   │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │   │   │ ♜ │   │
  ├───┼───┼───┼───┼───┤
  │ ♞ │ ♝ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │   │ ♛ │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♜ │   │   │
  ├───┼───┼───┼───┼───┤
  │ ♝ │ ♞ │   │   │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │ ♝ │ ♞ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♜ │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │   │ ♛ │
  ├───┼───┼───┼───┼───┤
  │ ♞ │ ♝ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♜ │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │ ♞ │   │   │ ♝ │
  ├───┼───┼───┼───┼───┤
  │   │ ♝ │   │   │ ♞ │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♜ │   │
  ├───┼───┼───┼───┼───┤
  │ ♛ │   │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♜ │   │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │ ♝ │   │   │ ♞ │   │
  ├───┼───┼───┼───┼───┤
  │ ♞ │   │   │ ♝ │   │
  ├───┼───┼───┼───┼───┤
  │   │ ♜ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │   │ ♛ │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♜ │   │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │   │ ♜ │   │   │
  ├───┼───┼───┼───┼───┤
  │   │ ♞ │   │   │ ♝ │
  ├───┼───┼───┼───┼───┤
  │   │ ♝ │   │   │ ♞ │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♜ │   │
  ├───┼───┼───┼───┼───┤
  │ ♛ │   │   │   │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │   │ ♞ │ ♝ │   │
  ├───┼───┼───┼───┼───┤
  │   │ ♜ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │   │ ♜ │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♝ │ ♞ │   │
  ├───┼───┼───┼───┼───┤
  │ ♛ │   │   │   │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │   │   │ ♞ │ ♝ │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♜ │   │   │
  ├───┼───┼───┼───┼───┤
  │ ♜ │   │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♝ │ ♞ │
  ├───┼───┼───┼───┼───┤
  │   │ ♛ │   │   │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │ ♝ │   │   │ ♞ │   │
  ├───┼───┼───┼───┼───┤
  │ ♞ │   │   │ ♝ │   │
  ├───┼───┼───┼───┼───┤
  │   │ ♜ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │   │ ♜ │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♛ │   │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │ ♞ │   │   │ ♝ │
  ├───┼───┼───┼───┼───┤
  │   │ ♝ │   │   │ ♞ │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♜ │   │
  ├───┼───┼───┼───┼───┤
  │ ♜ │   │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♛ │   │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │ ♝ │ ♞ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │ ♜ │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │   │ ♜ │
  ├───┼───┼───┼───┼───┤
  │ ♞ │ ♝ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♛ │   │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │   │ ♜ │   │   │
  ├───┼───┼───┼───┼───┤
  │ ♝ │   │   │ ♞ │   │
  ├───┼───┼───┼───┼───┤
  │ ♞ │   │   │ ♝ │   │
  ├───┼───┼───┼───┼───┤
  │   │ ♜ │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │   │ ♛ │
  └───┴───┴───┴───┴───┘
  ┌───┬───┬───┬───┬───┐
  │   │ ♝ │ ♞ │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │ ♜ │   │
  ├───┼───┼───┼───┼───┤
  │ ♜ │   │   │   │   │
  ├───┼───┼───┼───┼───┤
  │   │ ♞ │ ♝ │   │   │
  ├───┼───┼───┼───┼───┤
  │   │   │   │   │ ♛ │
  └───┴───┴───┴───┴───┘
  
  ```
  
  > **Comments:**
  > **username_9**: So the different unique solutions (if we count symmetries) are only 3. Interesting  
  > **username_10**: Unicode for the win!  
  > **username_6**: I rolled back the last edit; it seems to depend on OS / browser / other settings [which version](https://chess.stackexchange.com/posts/39476/revisions) works better. For me (macOS, Safari/Firefox), revision 1 is correct.  
  
  ---
  
  ### Answer by username_6 on 2022-03-15. Score: 15
  
  [![Qa3, Rb1, Rc4, Bd2, Nd5, Ne2, Be5](https://i.sstatic.net/jb3tU.png)](https://i.sstatic.net/jb3tU.png)
  
  Qa3, Rb1, Rc4, Bd2, Nd5, Ne2, Be5
  
  
  ---
  
  ### Answer by username_7 on 2022-03-16. Score: 9
  
  Another solution (not clearly equivalent to username_6's)
  
  [![enter image description here](https://i.sstatic.net/uO6ji.png)](https://i.sstatic.net/uO6ji.png)
  
  
  ---
  
  ### Answer by username_8 on 2022-03-17. Score: 4
  
  Generated 12 positions using python-chess. Here are the links from lichess.
  
  * <https://lichess.org/editor/8/8/8/2Q5/R7/3R4/1B2N3/1N2B3_w_-_->
  * <https://lichess.org/editor/8/8/8/1BN5/3R4/R7/1NB5/4Q3_w_-_->
  * <https://lichess.org/editor/8/8/8/2R5/Q7/3R4/1B2N3/1N2B3_w_-_->
  * <https://lichess.org/editor/8/8/8/2R5/1N2B3/1B2N3/3R4/Q7_w_-_->
  * <https://lichess.org/editor/8/8/8/Q7/2BN4/4R3/1R6/2NB4_w_-_->
  * <https://lichess.org/editor/8/8/8/4Q3/1NB5/R7/3R4/1BN5_w_-_->
  * <https://lichess.org/editor/8/8/8/4Q3/1R6/N2B4/B2N4/2R5_w_-_->
  * <https://lichess.org/editor/8/8/8/1Q6/3BN3/R7/2R5/3NB3_w_-_->
  * <https://lichess.org/editor/8/8/8/2Q5/4R3/1R6/N2B4/B2N4_w_-_->
  * <https://lichess.org/editor/8/8/8/3NB3/2R5/R7/3BN3/1Q6_w_-_->
  * <https://lichess.org/editor/8/8/8/3R4/NB6/4Q3/2R5/BN6_w_-_->
  * <https://lichess.org/editor/8/8/8/2NB4/1R6/4R3/2BN4/Q7_w_-_->
  
  
  ---
  
  