ChessX

ChessX is a free Open Source Chess Database for Linux, Windows, and Mac OS X. It uses Qt library to create modern, portable graphical interface. Current development is aimed at providing full featured PGN database, as well as a flexible native format.

Pas vraiment testé, cependant vous pouvez consulter cet article pour apprendre les ouvertures aux échecs

 Multi-platform. Supports Linux, Microsoft Windows and Mac OS
 Read-only support for PGN Files
 Work with multiple databases simultaneously
 Browse games
 Navigate through game, including variations
 Copy/Paste FEN/PGN
 Enter moves, setup board position
 Basic header search (click on columns in GameList header)
 Player database with picture support