Ltpgn

This module that provides a content type for viewing chess games in
PGN (Portable Game Notation) format. It is a convenience wrapper for the Ltpgn viewer by Lutz Tautenhahn ( http://www.lutanho.net/ ). The aim is to provide administrators a way of letting users upload their own chess games without having to do any programming. Users with appropriate permissions can upload a pgn format file, creating a PGN Node so that the game can be played through on the screen using the viewer.

Installation Instructions

Download Ltpgn viewer from http://www.lutanho.net/ and unpack into sites/all/libraries/ltpgnviewer. Install the libaries api module ( http://drupal.org/project/libraries ), and this module. Activate the module as normal.

Usage

Users with "chess pgn game" permission can create "Chess PGN Game" nodes. Any user can view these nodes. Users with "chess pgn admin" can modify settings, such as the IFrame size.

Similar Modules

• http://drupal.org/project/pgn_diagram_filter - which wraps the chess tempo viewer, providing a new input filter. Its a different approach with pros and cons. Possibly less user friendly from the end user point of view, and it does not show annotations. Also some of my pgn files didn't work in it where as they do in ltpgn. Advantages are greater flexibility, for example chess games could be inserted into a forum post.
• http://drupal.org/node/699044 - this isn't a module, but it describes a way of using the pgn4web viewer.
• http://drupal.org/node/458416 - other discussions of pgn