Reference 211
Similar spellings will be considered as being identical.
Moves exact / similar / ignore Once again you can determine how exact a match must be for ChessBase to consider the games identical. If you want to be radical and mark anything that smells like a double, use Ignore. ChessBase will then compare games not by moves but by ECO classification only. It will probably find quite a few games which look similar but aren’ t really doubles at all.
Always delete first / second game Normally ChessBase will remove the first game when it finds doubles, on the assumption that the second will be more recent and the more correct of the two. If you have a very good database and add games to it you may want to switch to deleting the second game instead. It also keeps the tournaments intact( i. e. they will remain together in the database).
Keep ' better ' game The better game is the game with more header details like Elo ratings, publisher source, first names, etc.
Delete annotated games Annotated games are treated specially. Normally the program does not want to delete double games which contain annotations, since information could be lost in the process. If you click on Delete annotated games, they will be deleted just like any other double.
Merge annotated games If you choose this option the game with the lower game number in the database will be loaded and merged with the other one. The contributors of the annotations will be get be noted in the game. Then the lower number game will then be replaced by the merged version.
Replace annotated game If you import a batch of annotated games, removing the original entries with a doubles search will ruin the tournaments. Replace annotated game causes ChessBase to replace the original game with the new annotated version. Remove doubles does not physically remove the games from the database, it marks them for deletion. If you want them removed you must click the database and use M aint e nanc e Re m ov e de le t e d gam e s( see database tools). This operation is irreversible.
3.4.33 PGN format
The PGN or Portable Game Notation format is an internationally recognized standard for recording games in ASCII notation. It is especially popular on the Internet because the games are stored as plain textfiles and can be edited – or theoretically even typed in completely – with a simple text editor. On the other hand, the use of storage space is much less efficient than in the ChessBase format – you need about seven times as much space to store the same games in PGN.
ChessBase can read and write PGN games files. As a user you do not need to worry about conversions. You simply address the PGN database directly, like any other database file. In order for ChessBase to read a PGN file it must have the extension“. PGN”. You may have to rename a textfile first if it doesn ' t have the correct extension.
ChessBase 2014