Check out Modern Chess, our featured variant for January, 2025.

Enter Your Reply

The Comment You're Replying To
Charles Gilman wrote on Thu, Dec 11, 2003 04:17 PM UTC:
Apologies to Mark Thompson and Tony Paletta, I meant Tetrahedral Chess. I
had no idea that there was a Tetragonal Chess. Tetragonal was my coinage
for the direction whose minimum distance is twice the Orthogonal's, and
was evidently playing on my mind. If it is the consensus that Triagonal
should go, so will that term.
Returning to the question of what is what -gonal, I interpret Orthogonal
as mean passing through 1st-degree boundaries (between two cells) at
right
angles to them, not (necessarily) to each other. This extends easily to
boards which are 3d, Hex, or both. Diagonal moves go through 2nd-degree
boundaries (boundaries between 4 1st-degree ones), at 45º to the
1st-degree ones. On a Cubic board, Triagonal moves go through 3rd-degree
boundaries (between 8 2nd-degree ones). The non-orthogonal Hex radial
actually goes ALONG 1st-degree boundaries, and so is not exactly the same
as Square/Cubic Diagonal OR Cubic Triagonal. On that basis there could be
a case for calling the direction Parallel! However it can appear on the
same board as the S/C Diagonal and so should surely have a different name
from that.

Edit Form

Comment on the page Constitutional Characters

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.
Avoid Inflammatory Comments
If you are feeling anger, keep it to yourself until you calm down. Avoid insulting, blaming, or attacking someone you are angry with. Focus criticisms on ideas rather than people, and understand that criticisms of your ideas are not personal attacks and do not justify an inflammatory response.
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.