ChessX is a free Open Source Chess Database for Mac OS X, Linux, Windows, and uses Qt library to create modern, portable graphical interface.

Current development is aimed at providing full featured PGN database. Afterwards we will add more flexible native format.

Here are some key features of "ChessX":

· Multi-platform. Supports Mac OS, Linux, Microsoft Windows
· 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

What's New in This Release: [ read full changelog ]

· feature: warn when quitting with unsaved databases
· feature: improve Engine tab of Preferences dialog, add reordering
· feature: remember current engine
· bugfix: show correct score for Crafty
· bugfix: correctly display variations leading to mate in UCI engines
· bugfix: update ECO database for opening detection and move guesser
· bugfix: improve focus handling in game list and game text
· feature: timer-delayed game loading when pressing Ctrl+Down/Up
· bugfix: remove bold column names in TableView
· bugfix: support NAGs not preceeded with space in PGN parser
· bugfix: make PGN parser more robust
· bugfix: optimize PGN output
· bugfix: enable leading comment in mainline and variations
· bugfix: slightly improve PGN export formatting
· feature: allow creating new PGN databases
· change: drop CXD databases support
· bugfix: guess move only with mouse over the board
· feature: truncate from the beginning
· bugfix: correct tag order for QuickSearch
· feature: search games by number or number range
· bugfix: do not read a game beyong the end of file
· feature: allow editing pre-move comments
· bugfix: PGN standard compliant ep square in FEN
· bugfix: reparent some dialogs
· bugfix: remove flickering at startup
· feature: make comments editable
· feature: correctly read PGNs with FEN
· feature: new Leipzig theme
· feature: allow removing variations * feature: enable HTML export
· feature: allow setting small fonts in chess text widgets (useful for laptops).
· bugfix: save all PGN tags
· bugfix: display correct move number in starting position
· feature: allow copying games between databases
· feature: allow copying pieces in BoardSetup by using Ctrl
· change: add Advanced setting to BoardSetup
· feature: PlayerInfo dialog with player statistics
· feature: display FEN in BoardSetup
· feature: copy/paste position in BoardSetup
· bugfix: correctly recognize promotions in UCI engines
· bugfix: correctly handle promotion in tablebases
· bugfix: support 1/2 as a draw symbol