<p>Your King is in check from your opponent's Queen.</p>

CC BY-SA 3.0
2012-02-24T13:32:32.040Z
While I can't put together a visual representation to check this at the moment, this does sound about right now that I think about it.  It probably never occurred to me before, because I'm so accustomed to the King & Queen being in the center of their row.
Iszi
CC BY-SA 3.0
2012-02-24T14:22:09.977Z
@Iszi, I am considering putting a visual together myself. I had to look back and forth at the Tournament Rules with the board visual and your move list to try to see the board in my mind.
user1873
CC BY-SA 3.0
2012-02-25T04:22:12.237Z
Well, drat.  I was going to attempt reproducing this in Parmen tonight, but now the program's going all crashy on me.
Iszi
CC BY-SA 3.0
2012-02-24T06:00:35.233Z
2012-02-24T06:00:35.233Z
user1873
<p>I'm trying to learn 3-D chess by playing <a href="http://www.parmen.com/" rel="nofollow">Parmen</a> against the computer.  I've read the <a href="http://home.arcor.de/jens.meder/3dschach/chess3d.htm" rel="nofollow">tournament rules</a> and am fairly confident I've got a good, basic understanding of the game.  However, in my first game, I've quickly encountered a situation where the program is telling me I'm trying to make an illegal move which I think would be legal.</p>

<p>The moves so far (I'm playing white):</p>

<blockquote>
  <ol>
  <li>a4N, Nc6N  </li>
  <li>c4N, Nb6N  </li>
  <li>Nb3N, Nxc4N  </li>
  <li>d3N, N4a5B</li>
  </ol>
</blockquote>

<p>The move I'd like to make now is <code>Nxa5B</code>, but I'm alerted that it is an illegal move.  Can someone explain to me why this is?</p>

CC BY-SA 3.0
2012-02-24T05:09:05.297Z
@Iszi, would you mind using the full notation, and perhaps showing an image of the board (with the rank and files) showing the board position just before the illegal move?
user1873
CC BY-SA 3.0
2012-02-24T05:16:01.273Z
@user1873 The notation above is the same notation that is output by Parmen and, according to my understanding, is in alignment with the notation used in tournament rules.  Getting a solid screenshot that effectively shows the position of all the pieces on all levels of the board is a bit tricky.
Iszi
CC BY-SA 3.0
2012-02-24T05:23:40.513Z
Also, I've quit the game in question and am not sure if I can reliably reproduce it with this particular software.
Iszi
CC BY-SA 3.0
2012-02-25T22:17:57.613Z
Just a display of the screen?
CapelliC
CC BY-SA 3.0
2012-02-26T04:04:27.867Z
@chac Firstly, I'm not currently familiar with how or if I could reproduce the game progression since I've closed the game without saving it.  Even if I could, I'm currently experiencing some crashes in the game.  See this thread on [gaming.se] for more details:  http://gaming.stackexchange.com/q/52333/6274  Also, as I've already said, getting a good screenshot that effectively shows all the pieces on the board is very difficult due to the three-dimensional nature of the game and two-dimensional nature of screen captures.
Iszi
<3d-chess>
Why is this move illegal?
Iszi
# Why is this move illegal?

(Asked by: username_0 on 2012-02-23)

I'm trying to learn 3-D chess by playing [Parmen](http://www.parmen.com/) against the computer. I've read the [tournament rules](http://home.arcor.de/jens.meder/3dschach/chess3d.htm) and am fairly confident I've got a good, basic understanding of the game. However, in my first game, I've quickly encountered a situation where the program is telling me I'm trying to make an illegal move which I think would be legal.

The moves so far (I'm playing white):

> 1. a4N, Nc6N
> 2. c4N, Nb6N
> 3. Nb3N, Nxc4N
> 4. d3N, N4a5B

The move I'd like to make now is `Nxa5B`, but I'm alerted that it is an illegal move. Can someone explain to me why this is?

**Tags:** 3d-chess

> **Comments:**
> **username_1**: @username_0, would you mind using the full notation, and perhaps showing an image of the board (with the rank and files) showing the board position just before the illegal move?  
> **username_0**: @username_1 The notation above is the same notation that is output by Parmen and, according to my understanding, is in alignment with the notation used in tournament rules.  Getting a solid screenshot that effectively shows the position of all the pieces on all levels of the board is a bit tricky.  
> **username_0**: Also, I've quit the game in question and am not sure if I can reliably reproduce it with this particular software.  
> **username_2**: Just a display of the screen?  
> **username_0**: @chac Firstly, I'm not currently familiar with how or if I could reproduce the game progression since I've closed the game without saving it.  Even if I could, I'm currently experiencing some crashes in the game.  See this thread on [gaming.se] for more details:  http://gaming.stackexchange.com/q/52333/6274  Also, as I've already said, getting a good screenshot that effectively shows all the pieces on the board is very difficult due to the three-dimensional nature of the game and two-dimensional nature of screen captures.  

---

## 1 answers

### Answer by username_1 on 2012-02-24. Score: 3

Your King is in check from your opponent's Queen.

> **Comments:**
> **username_0**: While I can't put together a visual representation to check this at the moment, this does sound about right now that I think about it.  It probably never occurred to me before, because I'm so accustomed to the King & Queen being in the center of their row.  
> **username_1**: @username_0, I am considering putting a visual together myself. I had to look back and forth at the Tournament Rules with the board visual and your move list to try to see the board in my mind.  
> **username_0**: Well, drat.  I was going to attempt reproducing this in Parmen tonight, but now the program's going all crashy on me.  

---

