Manual de Fritz 15 2015 | Page 256

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Fritz 15 Help

First game: If you use an openings database, you can specify which position the
match should start from. and one with black. If both programs are using the same
openings book, or if you are using an openings database like the Nunn match, each
engine will play the same opening with white, and then with black.

Information during the match
While an engine match is running there is a lot of information available to keep you
briefed on its progress. These are to be found at the top of the screen.
On the top left you see the names of the two engines.
The "X" button allows you to stop the match.
Click the middle button when you want to "adjudicate" a game. This is useful when
one side is clearly winning but the game will drag on for many hours before it is
decided.
The third button will generate a tournament table, giving you an overview of the
engine match so far.
On the top of the screen there is more information: You can see names of the
programs, the current score, number of draws, and the result in percentage. You can
also see the tournament performance in Elo, with the standard deviation in square
brackets, and the certainty (in percent) that the performance lies within this margin of
error.
Where the games are stored
A special engine-engine database is used to store all games from engine matches. It is
by default, the database c:\My Documents\[User]\ChessBase\CompBase (unless you
have specified otherwise during the installation).
The engine-engine database is called "EngMatch" and is always present in the history
list at the top of the database window.

3.8.10 The Nunn Match
The use of an opening database in an engine vs engine match has some interesting
applications. For instance, you can start a theme tournament to test the quality of
your favourite openings system, store various lines in the database and then have the
program play them out against itself. Or, you can store a series of games or positions
you want to analyse in a database and start the program working on them. It can also
be used to conduct the well-known “Nunn test”.
GM John Nunn has selected a series of ten openings to test engine strength. The
opening database required to conduct the match is to be found on your program CD,
and is automatically installed on your hard disk (in the directory \testsets). If you
start a match between two engines using this “Opening DB” and “Alternate colours”,
you will get 20 games which give you a very good idea of the pure playing strength of
the engines.
There are a number of reasons for this kind of experimental match, which eliminates
the use of traditional openings books:

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