Manual de Fritz 15 2015 | Page 102
102
3.3.2
Fritz 15 Help
The book window
In the initial phase of a game the program plays out of an “openings book”. This can
consist of millions of openings positions, and for each of these the program has full
information on which moves were played, how often, and with what results. The
program stores its own experience with openings variations it has played. It learns
from success and defeat.
See also LiveBook ...
You can consult the openings book by clicking on the Ope nings book tab at the top
of the notation window (if an openings book is not loaded, click the button and select
one from your hard disk).
Extended Book Display ....
This is what you see in the openings book tree:
Moves: (Tree icon) Sometimes a move will appear in grey, which means that it
was never played, but leads to a position that results from some other line.
N: (N) The header displays the total number of games which led to the current
board position. The N column displays the number of games in which each move was
executed.
%: Percentage score achieved by the move, always from the point of view of the
colour to play. If the number of games is low, the percentage is given in grey because
it does not have great statistical significance.
© ChessBase 2015