You are on the main site for The Chess Variant Pages. There were some technical difficulties for a while, but things should be working now.

The Chess Variant Pages

Enter Your Reply

The Comment You're Replying To
George Duke wrote on 2007-09-25 UTCGood ★★★★
9x9 being unusual size, Mexican Carlos Cetina in this 1997 invention Coherent Chess probably emulated Puerto Rican(USA) Gabriel Maura's Modern Chess. Posted in CVPage in 1996, 9x9 Modern Chess was played internationally to some extent around the Caribbean in 1970's. There were only hundreds of CVPage posts then, and Cetina must have noticed Maura's. In turn, Maura himself likely was aware of North American Ben Foster's Chancellor Chess 9x9 also, as the main difference is switching from Marshall(RN) to Cardinal(BN) and going to same-coloured Bishop pair from Foster's off-center array. They are 'normalized' in Coherent Chess array with Bishops standing back to back centrally. The real novelty is first use of Sissa, later featured in Sissa Chess. Interesting Sissa is multi-path, two-path to Nightrider squares, and four-path to Rook squares. None of the pathways follow the typical Nightrider or Rook pathways. 'The [Sissas] gain more power when the board gets empty'. That remark precedes full game score taking up most of the essay. In 1990's and 2000, even when an article was not completely polished (including RBetza's usual one a week), there were always a newly-invented piece or clearly unique mechanism. None of today's perpetual 'new combination of elements' only and then the more vociferous the more attention.

Edit Form

Comment on the page Coherent 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.

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.