Chessdiag

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.

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

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.

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