Release date: 
Tuesday, 16 September, 2014



ChessX is an open source chess database. With ChessX you can operate on your collection of chess games in many ways: browse, edit, add, organize, analyze, etc.

ChessX is cross-platform. It works on Windows, Linux and Mac OS X. Application developed using Qt.

This software is distributed in two modes:
  • as compressed package that you have to download and manually install; if prerequisites are required, you will have to manually install them too;
  • as RPM package; you can install it using your favorite rpm package manager, that will take care to download and install both the software and its prerequisites.
Choose the installation mode that you prefer. Please note that not all the versions are available in both the installation modes.

Installation with rpm

This program is installable using the rpm package manager. See below for the install string. Required prerequisites are automatically processed by the package manager and, if needed, downloaded and installed.

chessx-1.5.6-1.oc00 (17/10/2021)
Repository: Netlabs stable
December 2020: Version 1.5.6 - New Feature: Implement read support for Scid binary database (*.si4) - New feature: Spray fields in pen mode by pressing alt+Left Mouse - New feature: Add option to hide special annotations in view - New feature: Show variation arrows - New feature: Engine draws an arrow for its best move - New feature: Support online / lichess data access - New feature: Scroll through game with ChartWidget - New feature: Display eval annotations in the chart (%eval) - New feature: Open file from scratchpad / Drag file names to scratchpad - New feature: Visualization training - New feature: Indicate Draw percentage in OpeningTree - Bugfix: Opening tree - switching between Database and Filter did not trigger tree update - Bugfix: Display of symbolic pieces in OpeningTreeWidget and variation list - Bugfix: Hotkeys are not serialized properly - Bugfix: Duplicate hotkeys for menus with same name - Bugfix: Do not ask to save clipboard - Bugfix: Dark theme handling - Changed: Raise scratchpad when New or Open is invoked - Changed: Resize text fonts with Ctrl+ Ctrl- or Ctrl+Alt+Wheel - Changed: Increase max size for writable databases - Changed: Disable Raise of game list after filtering

Manual installation

Program is distributed as ZIP package: download to temporary directory and unpack to destination folder. See below for download link(s).

You can install the prerequisites with rpm running the following string in a command line:

yum install libc libcx libgcc1 libssp libstdc++6 libstdc++ libsupc++6 libsupc++ libgcc-fwd libqt4 libqt4-gui libqt4-webkit libqt4-sql-mysql libqt4-sql-psql zlib qt5-qtbase*

Following ones are the download links for manual installation:

ChessX v. 1.3.2 (5/7/2015) Readme/What's new
May 2015: Version 1.3.2 - New feature: Variation indicator in toolbox - New feature: FICS - Toggle board at beginning of puzzle - New feature: Toolbox for adding Nags (e.g. on WhiteBoards) - New feature: FICS - Filter computers and unrated users - New feature: Show date of last access to a database - New feature: Pin Opening Tree at a position - New feature: Clear filter before starting search from opening tree - New feature: Select board for searching position from open boards - New feature: Show threat after making move - Bugfix: Index file usage broken - Bugfix: Missing newline copying games into a closed file - Bugfix: Better status message when copying multiple games - Bugfix: Gamelist header configuration does not persist - Bugfix: Windows Installation does not show Pin Icon
ChessX v. 1.3.0 (21/4/2015) Readme/What's new
April 2015: Version 1.3.0 - New Feature: Play games on FICS with telnet or timeseal - New Feature: Boards now 1:1 with open databases - New Feature: Remove found items from filter - New feature: Flip board to side to move while loading game in training - New feature: Setup Board Dialog with Coordinates - New feature: #137 Extend Opening tree (Back button) - New feature: Undo last move in Opening Tree - New feature: Player Info filters games also for specific color - New feature: Player Info shows regularly played openings - New feature: Automatic analysis backward from end of game - New feature: Refactoring from context menu of game text - New feature: PlayerInfo with performance per eco code - New feature: Hide selected game from game list - New feature: Allow editing arbitrary tags - New feature: Draw annotations whith Shit+Left-Click with last color used - New feature: Saving w/o dialog - New feature: Material profile - New feature: New board "lanta" - New feature: Allow filtering of non-active DB from OpeningTree - New feature: Send PGN by mail - New feature: load project databases from Help menu - Bugfix: Autoanalysis runs over remaining game after adding variation - Bugfix: Annotation menu seems to contain duplicate entry - Bugfix: Do not limit num pv in analysis - Bugfix: Pressing Shift while dragging piece creates illegal baord view - Bugfix: Guess generation crashes when given an illegal position - Bugfix: In auto responder mode, arrows where painted too late - Bugfix: Dialogs non-modal - Bugfix: Loading translations failed - Bugfix: Open file with relative path from commandline
ChessX v. 1.2.2 (17/10/2014) Readme/What's new
October 2014: Version 1.2.2 - Bugfix: Entering a rook move or 0-0 did not work via keyboard - Bugfix: Plycount wrong saving a game from the non-current database - Bugfix: Crash saving a database upon closing chessx if database was not current DB - Bugfix: Enter-Key did not terminate entering a nag - Bugfix: Occasionally random move would get highlighted - Bugfix: Searching for Rounds and Moves did not work - Bugfix: Searching for ranges did not include limits - Bugfix: UCI Options containing a '.' were parsed incorrectly - Bugfix: Entering half-ply count was limited to 99 moves (thx to Niklas) - Bugfix: Retracing a game would fail at move one - Bugfix: Retracing a game beyond a move with variations would leave invisible variations - Bugfix: Pasting PGN into new game did not set modified flag - Bugfix: Pasting FEN into new game did not create new game - Bugfix: Changes to square and arrow annotations in annotation dialog are not painted immediately - New feature: CR#141 Edit game details - New feature: CR#140 Remember maximize state (and full-screen state) - New feature: Arrow as current move hint - New feature: Menu entry to clear clipboard database - New feature: Sorting of game list by clicking header (for databases<=4K) - New feature: Multi-Selection in the game list - Enhanced: Speed up polyglot book building - Changed: F3/F4 now load previous / next game
ChessX v. 1.2.0 (16/9/2014) Readme/What's new
July 2014: Version 1.2.0 - New Feature: Use polyglot books in Opening Tree - New Feature: Build polyglot books from Databaselist - New Feature: Enter games via keyboard - New Feature: Undo and Redo of game editing actions - New Feature: Support for external tools - New Feature: Paste variation from clipboard into game - New Feature: Danish Translation (thanks to Byrial Jensen) - New Feature: Allow removing found items from filter - New feature: Show title of game in Copy Game Dialog - New feature: Opening names in ECO Widget - New feature: Make position searches more comfortable - New feature: CR#206 Remember settings for more windows. - New feature: CR#203 Center the board inside its container - New feature: CR#118 Gameview: Make tags clickable - New feature: Auto analysis writes engine's name into final annotation - New feature: Asynchronous Searching - New feature: Allow several unsaved games at the same time (one per db) - New feature: Allow disabling menu icons - New feature: Allow constant move indicator - New feature: #117 Export screenshot to file - New feature: Filter in ECO widgets support regular expression - New feature: Checkbox in opening tree to add moves to game too - Changed: Pinned games have infinite analysis depth - Changed: Dialogs remember sizes and screen positions - Changed: CR#127 New navigation buttons order. - Changed: board tabs carry name of db instead of numbers - Changed: Auto analysis won't add move at end of game - Changed: Assignment of CTRL+C key to direct pasting of PGN - Changed: #121 Thicker, more visible arrows and colored squares - Changed: Show game title now in three lines - Changed: Copy of a game via context menu copies selected game - Changed: ECO Widget shows names of openings - Bugfix: Nags with bishops now exclusive - Bugfix: CR#205 line does not resume from the same indentation. - Bugfix: CR#204 Database is not released from memory upon closing - Bugfix: Annotations were not handled correctly when compacting database - Bugfix: Analysis/"Mate in" has inconsistent color - Bugfix: EGT Time annotation broken - Bugfix: Do not send ucinewgame after making a move
Record updated last time on: 16/12/2021 - 20:01

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