Basically, a chess opening book is a file with opening lines.
V. Wikipedia or Wikispaces for more information.
A book can be read by a chess engine. This means your chess engine can use it as its opening book.
SCID databases are for your own use, or for the engine of your mind ;-) You can analyze them, annotate them, compile stats, etc.
All possible moves contained in the book from [TheActivePosition], and their relative weights in percent. The weights represent frequencies a chess engine will play a move. If a move shows 43%, it means that a chess engine will play this move a bit less than half of its games when reaching this position and using this opening book.
Clicking on a move in the book window will play that move in [TheActivePosition]. When a move is entered, the book window is updated.
If you click on it, it displays the moves that are not present in the book but excluded from the engine's repertoire. This allows an engine to replies against moves moves that are not in the book.
Yes. See the [ScidProject] for more details.
A list of all book files in SCID's books directory is presented in the drop down list on top of the window. The book in use can be selected from the drop down list in the book window.
Yes. Select Books directory in [TheOptionsMenu], then change the directory.
NB. Do not forget to save your options with Options / Save Options !
Yes. See [BookTuning] for more information on this.
No. Currently, you need to get the Polyglot binary; see [ComputerChess].
Refer to its documentation for more information.
Wiki: FileFormats
Wiki: ScidProject
Wiki: TheActivePosition
Wiki: TheOptionsMenu
The book directory is now set in "Options->Resources..."