Check out Janggi (Korean Chess), our featured variant for December, 2024.

Enter Your Reply

The Comment You're Replying To
H. G. Muller wrote on Sun, Dec 8 07:38 AM UTC in reply to HaruN Y from 03:19 AM:

That would be a possibility. But not all variants that do allow turn pass associate this turn pass with a piece. And when different pieces can do a null move, you would have different notations for the same move. Of course you coould always associate a null move with the King, which should always be there.

But the conventional solution used by interfaces for orthodox Chess is to write them as 'pass' or '--'. Although in Chess these are of course illegal, many interfaces allow them during interactive analysis. Where it can be important to answer the question "what is the threat I am facing in this position".

Th problem here is not how to write the turn pass, but that the I.D. currently is not aware at all that when two moves of the same player are done in a row a turn pass should be inserted between them. Hence the notation gets 'out of phase'. Which is fatal for reading it back, as SAN does not explicitly encode the color of the moving piece. Nf6 could mean either a white or black Knight. For two Knights of the same color being able to make that move it would add disambiguation, like Ngf6, but not if a Knight of the opponent can make the same move. When it encounters Nf6, it only looks for Knights of the color that it expects to be on move, which only follows from the sequence number of the move in the game record to be even or odd.

So I guess that before adding a move to the game it should first check whether the color of the moved piece corresponds to the even/oddness of its sequence number, and if not insert the turn pass before adding the move.


Edit Form

Comment on the page Betza notation (extended)

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.