Manual de Deep Fritz 14 2013 | Page 241

Reference

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Here are examples of the parameters you can set in most engines to influence their
playing style. You will often be able to achieve a higher performance in specific
situations (e.g., playing very fast games, solving tactical positions or studies).
Different parameters may be available in different engines, not all of the ones given
below may appear in your default.
Note: The default configuration of the engine has been carefully tested. It is possible
that in some circumstances other settings lead to better results, but for the best
overall performance and strongest play it is recommened that you leave the default
settings unchanged.

Engine Parameters of the Engine
You can modify the parameters of the engine. When you load an engine with the
function key F3 you should select the engine that you want to load.
There is a button entitled "Engine Parameters" which opens a dialog with some
options:
Draw value = 0: Fritz plays as usual.
Draw value > 0: Fritz tries to play for stalemate. This might be useful in a situation
where a drawn game is enough to win a tournament.
Draw value < 0: Fritz tries to avoid stalemate. For instance, with a setting of –100
(centipawns) Fritz would be prepared to sacrifice a pawn to avoid stalemate.
Use Tablebases: Fritz uses the Endgame Tablebases to get immediate evaluation of
known end game positions.
Use Nullmove: The Null Move is a special search mechanism which reduces the size
of the search tree, so that the engine can look deeper. If one side makes two moves
in a row ("null move" for opponent) and does not get a big advantage, the engine
assumes that the first move is bad. This is usually highly efficient. However in certain
endgame positions it can overlook Zugzwang.
Max Endgame Tables: This defines the maximum number of pieces, for instance only
the 4-piece EGTBs.
Save: This saves the engine modifications. This opens a dialog to select the filename
for the stored parameters. The extension of the configuration file is *.param.
Load: This opens a dialog to load previously stored engine parameters. The parameter
files can be found in the folder Engine Parameter.
Defaults: This button restores the engine’s factory settings.
Tip: You can set up engine-engine matches or engine tournaments to test your
modifications against other engines.
Save stores the new parameters for the engine. Restore deletes the changes you

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