Compressing the database

 

When a database has a lot of games and/or positions that are marked as deleted, it's recommended to run a compression phase to decrease the size of the database. This results in less disk space taken by the files. If you have a game on the board that needs saving, do so BEFORE compressing the database. Afterwards you will not be able to REPLACE the game, saving it as another game is possible of course.

 

Do not confuse this compression function with the compressed format in which games can be saved within the database. That format simply takes less space for the list of moves and time tracking is also not present. It is recommended to use the compressed format where possible to save ever so scarce disk space. See also Normal format, and Extended format.