Reference
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different on analysis than of games. On analysis " White " and " Black " are taken literally, so that when you analyze from the other side you get the same evaluation. On games White means " Me " and black means " The opponent ", so by setting the values you are really setting how Rybka should evaluate her pieces and the opponent ' s, regardless of what side she ' s playing on.
Rook Endgame Scaling: If you see Rybka playing too much into dead drawn endgames with a rook and an extra pawn, try lowering this value. Useful for analysis of such positions, as well.
xLog- Write stuff to a HTML file( seems to only work for Opera Browser...)
Main Process Priority / Child Process Priority: Changes the engine priority without needing to visit the Task Manager. For instance:
Inherit should be to start the main process at the same priority of the GUI.
NalimovUsage- affects how much she is slowed by tablebases, default should be best.
Use Large Pages- After you set " lock pages in memory " in the OS, expect some 15 % speed up if you give her 1GB Hash( or more, less hash should also give benefits but not as dramatic- only lasts until you unload the engine, then you ' ll probably have to reboot the computer for this to take effect again).
Always Score Main Move- With this OFF Rybka would move into looking for alternative moves in fail lows, with ON she will first give the move a score. Recommended to set it ON for analysis, OFF for games.
Display Upperbounds- With this OFF Rybka would not tell the user when a fail move happened, so if you were away from the computer you wouldn ' t have a way to know. Recommended to set it ON for interactive analysis, OFF for games.
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 have just made. Defaults switches back to the normal parameters.
Please note: The default parameters are the one the programmers consider the strongest for general play.
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