Manual de Fritz 15 2015 | Page 274

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Fritz 15 Help

Enter the path of the folder where the Syzygy tablebases are stored in the "GUI" and "
Engine " tabs. Clicking on the button with the three dots activates the standard
Windows dialog to select the folder. Click OK to confirm the settings, and the program
will now use the information in the tablebases.
You can check whether the access is working by looking at the output of a chess
engine.

In this example you can see entries "tb= xxx", which show how often the Houdini
chess engine is accessing the endgame tablebases. A big advantage of the Syzygy
Endgame Tablebases is that they are much smaller. The 6-man Syzygy tablebases
need 150 GB disc space, whereas the Nalimov tablebases need more than 1 TB.
The Syzygy Endgame Tablebases pay attention to the 50 move stalemate rule. If
there are 50 moves without a piece being taken or a pawn being moved, the game is
drawn. Since the data can be accessed in RAM very fast and effectively the Syzygy
Endgame Tablebases are now used exclusively by many modern chess engines.
For instance, the chess engine only uses the Syzygy tablebases during the search,
but it also uses the Nalimov tablebases when a position is on the board. It is to be
expected that the Syzygy tablebases will become increasingly popular with engine
developers.
The best way to get the complete Syzygy Endgame Tablebases is to buy the
Endga m e T urbo 4 from our online shop.
Because of the size of the tablebases it is best to install them outside of the
Documents folder, for instance in C:/Tablebases/.
There are two different types of Syzygy tablebases.
WDL (Win-Draw-Loss).

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