apply the current settings and exit the dialog back to the main display.
Engine Preferences
The Engines tab of the Preferences dialog handles adding, configuring and removal of chess engines.
As part of the HIARCS Chess Explorer package you will have the HIARCS 14 World Chess Software
Champion engine(s) available automatically installed and added. You can also add any other UCI compatible
engine.
Clicking the Apply button will apply the current settings but keeps the dialog open. Clicking the Cancel
button will cancel any changes since the last apply and exit the dialog. Finally click the OK button to
apply the current settings and exit the dialog back to the main display.
At the bottom of the dialog are the common settings applied to each engine for:
· Hash table size - this is a search table chess engines use to cache positions. The value is set in
Megabytes (MB), for general use 256Mb is a good size to use. In general do not use more than 50% of
the physical RAM on your machine. The up/down arrows allow the adjustment of the Hash table size in
values which are powers of 2 (e.g. 64Mb, 128Mb, 256Mb). Alternatively, you can click on the value to
enter an exact Hash table size.
· Nalimov tablebase path - this is the path to local tablebases for the engines to use, you can set
multiple paths by clicking the Add.. button.
· Nalimov cache size - this is the size of an endgame cache of Nalimov tablebase positions. If you have
all 4,5 & 6 piece tablebases then use 512MB or more. For 5 piece tablebases you can use less,
e.g.128MB. For just 4 piece tablebases 32MB is enough. The up/down arrows allow the adjustment of
the Nalimov cache size in values which are powers of 2 (e.g. 64Mb, 128Mb, 256Mb). Alternatively, you
can click on the value to enter an exact Nalimov cache size.
The Nalimov tablebase path can be set by clicking on the ... button when you will be given a Choose
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