Author: Thomas Mayer
Date: 09:15:41 12/20/03
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Hi Kurt, > Size of hash tables seem to have much less influence > than I have imagined. This showed a test over 50 games > between Fritz 8 [96 MB hash] against Junior 8 [8 MB hash] > and a second 50 games match Fritz 8 [8 MB hash] vs Junior 8 > [96 MB hash]. The final result was in both matches almost > identical [25m+10s]. when I remember correctly there was a difference between the results and the elo difference was very near what I would expect when I take the Théron rule for doubling hash size... (I call it Théron rule because he was the first one I saw who made the statement that he guess that doubling hash size is around 7 Elo) - afaik the difference was even slightly bigger then what we would expect according to the above rule... but of course in the given margin of error of EloStat... A more relevant difference is to have hashtables or not to have them, especially in endgame - e.g. against engines without any hashtables I have some chances to win when I survive until the endgame - against engines WITH hashtables I usually have no chance at all... Greets, Thomas
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