=== Chessdiag ===
Contributors: wouf
Tags: chess, diagram, chessboard, fen, pgn, chess diagram
Requires at least: 5.0
Tested up to: 6.9
Stable tag: 4.1
License: GPLv2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html

Generate chess diagrams easily in your posts and pages using a simple shortcode.

== Description ==

Chessdiag allows you to display clean and customizable chess diagrams directly in your WordPress content.

Use the shortcode with a Chessdiag position code between the opening and closing tags.

Example:

[diag]mrmnmbmqmkmbmnmr8mp32s8prnbqkbnr[/diag]

Features:

- Display chess diagrams from Chessdiag position codes
- Custom board size
- Highlight squares
- Draw arrows
- Optional coordinates
- Clickable board (optional)

The diagrams are generated via an external service.

== External Services ==

This plugin loads images from:

https://chessdiag.org/

When a diagram is displayed, the visitor’s browser requests an image from this service.
The request includes the encoded chess position (FEN) and display parameters.

No personal data is intentionally collected by the plugin itself. However, standard web requests may include technical information such as IP address or browser details, depending on the server configuration.

== Installation ==

1. Upload the plugin zip file via the WordPress admin panel
2. Activate the plugin
3. Use the shortcode in your content

== Frequently Asked Questions ==

= How do I display a diagram? =

Use the shortcode:

[diag]your-chessdiag-code[/diag]

= Can I customize the size? =

Yes:

[diag size="400"]your-chessdiag-code[/diag]

= Can I add arrows or highlights? =

Yes:

[diag arrows="e2e4g" squares="e4y"]your-chessdiag-code[/diag]

== Screenshots ==

1. A chess diagram displayed in a WordPress post — the image is served by chessdiag.org via the [diag] shortcode.
2. A chess diagram rendered inside a WordPress comment using the same [diag] shortcode.
3. The chessdiag.org editor showing how to export a position code ready to paste into WordPress.

== Changelog ==

= 4.1 =
* Added `flip` attribute to display the board from Black's perspective
* Added `nocoords` attribute to hide coordinates and border
* Added `arrows` attribute to draw colored arrows on the board
* Added `squares` attribute to highlight specific squares
* Added `cl` and `cd` attributes for custom light/dark square colors
* Added `size` attribute to control diagram width in pixels
* Added `[diag]all[/diag]` shortcut for the standard starting position
* Added shortcode support inside comments
* Added `[diag?]...[/diag?]` escape tag to display the shortcode as literal text

= 1.0 =
* Initial release
