Check out Symmetric Chess, our featured variant for March, 2024.

Enter Your Reply

The Comment You're Replying To
George Duke wrote on Mon, Mar 9, 2009 06:25 PM UTC:
Thanks, Charles, we'll re-look at those. I am assuming Campos means Giraffe for reasons that will become clear. Any board size has it factors, prime and non-prime. If you want a board of 77 squares, you're stuck with 7x11 and 77x1. 7x11 is about right, but ''1-Dim'' (as termed in the field of CVart) 77x1 is high and narrow. Ramayana(2002) is just about the first to solve the problem by innovative outliers. Incidentally, Luiz Carlos Campos and myself are in minority giving rank first then file rather than more conventional x first and y in two axes. Either way, horizontal or vertical first, the context well clarifies the meaning. Now outlier squares after Ramayana warrant board of 8x8 squares and distribution of 13 more symmetrically after some fashion. For 77, try an Omega-Chess-style triple corner at each of the four corners, like Falcon Chess 100 does in wrap-arounds of a1, a8, h1, and h8: we call them there y0, y1, y8, y9, a0, a9, h0, h9, z0, z1, z8, z9. That's (12 squares) + 64 = 76, and now one more as multiple occupancy super-square over, beneath, or through central d4, d5, e4, e5 covering all four of them at once. That does it. 64 + 12 +1 = 77. Symmetry, even for 77, thanks to outliers Ramayana-like. Think of possibilities that any board size whatsoever is attainable and representable. Instead, subverting rotational symmetry that we expect in boards, Ramayana elects outlier squares confined to Yellow's right (to be continued), still exhibiting reflection (bilateral) symmetry rotated pi/2 radians, since the whole board is mirror-symmetric about the line midway between the Untouchables.

Edit Form

Comment on the page Ramayana Chess

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.