Check out Grant Acedrex, our featured variant for April, 2024.

Enter Your Reply

The Comment You're Replying To
David Paulowich wrote on Fri, Jun 29, 2007 01:13 AM UTC:

Checkmate on 5x5x5: Starting with King and 3 Rooks versus a lone King, the White King can make its way onto the central cell (Cc3) without much difficulty. The Black King is now restricted to the 98 cells on the six faces of the playing area. It should be possible to then force a position with the lone King trapped on one face, for example level 'A'. The following (Zillions tested) checkmate in 14 moves looks fairly convincing.

	*	*	*
(Black King Ab2)
(White King Cc3)
(White Rook Ba5)
(White Rook Be5)
(White Rook Be1)
1. Rook Be1 - Ba1
1. King Ab2 - Ac2
2. Rook Be5 - Ae5
2. King Ac2 - Ad3
3. Rook Ba5 - Be5
3. King Ad3 - Ac2
4. Rook Ae5 - Ab5
4. King Ac2 - Ac3
5. Rook Ba1 - Be1
5. King Ac3 - Ac4
6. Rook Ab5 - Ab1
6. King Ac4 - Ac3
7. Rook Be1 - Ae1
7. King Ac3 - Ac4
8. Rook Ae1 - Ad1
8. King Ac4 - Ac5
9. Rook Ad1 - Ad3
9. King Ac5 - Ac4
10. Rook Ab1 - Ab3
10. King Ac4 - Ac5
11. King Cc3 - Cc4
11. King Ac5 - Ac4
12. Rook Be5 - Be2
12. King Ac4 - Ac5
13. Rook Be2 - Ae2
13. King Ac5 - Ac4
14. Rook Ae2 - Ac2
	*	*	*

Checkmate on 6x6x6: If we somehow reached the position given above, can White still force a similar checkmate? Note that the Black King is trapped inside a 5x5 area on level 'A' and should not be allowed to escape.

Edit Form

Comment on the page 3D-chess FAQ file

Conduct Guidelines
This is a Chess variants website, not a general forum.
Please limit your comments to Chess variants or the operation of this site.
Keep this website a safe space for Chess variant hobbyists of all stripes.
Because we want people to feel comfortable here no matter what their political or religious beliefs might be, we ask you to avoid discussing politics, religion, or other controversial subjects here. No matter how passionately you feel about any of these subjects, just take it someplace else.
Quick Markdown Guide

By default, new comments may be entered as Markdown, simple markup syntax designed to be readable and not look like markup. Comments stored as Markdown will be converted to HTML by Parsedown before displaying them. This follows the Github Flavored Markdown Spec with support for Markdown Extra. For a good overview of Markdown in general, check out the Markdown Guide. Here is a quick comparison of some commonly used Markdown with the rendered result:

Top level header: <H1>

Block quote

Second paragraph in block quote

First Paragraph of response. Italics, bold, and bold italics.

Second Paragraph after blank line. Here is some HTML code mixed in with the Markdown, and here is the same <U>HTML code</U> enclosed by backticks.

Secondary Header: <H2>

  • Unordered list item
  • Second unordered list item
  • New unordered list
    • Nested list item

Third Level header <H3>

  1. An ordered list item.
  2. A second ordered list item with the same number.
  3. A third ordered list item.
Here is some preformatted text.
  This line begins with some indentation.
    This begins with even more indentation.
And this line has no indentation.

Alt text for a graphic image

A definition list
A list of terms, each with one or more definitions following it.
An HTML construct using the tags <DL>, <DT> and <DD>.
A term
Its definition after a colon.
A second definition.
A third definition.
Another term following a blank line
The definition of that term.