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Subject: Re: Transposition table replacement.

Author: Volker Böhm

Date: 08:55:44 07/31/04

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On July 31, 2004 at 10:45:29, Stuart Cracraft wrote:

>On July 30, 2004 at 01:17:49, Volker Böhm wrote:
>
>>Hi,
>>
>>I use an idea I got from crafty or gnu-chess. Use two consecutive hash entries
>>for one index. The first entry is a replace if deeper, the second entry is a
>>replace allways.
>>
>>Thus when adding an entry I calculate Index &= (~1); Then I check if the entry
>>at this index has been calculated with less depth. If yes put the new Entry at
>>the Index and the old entry at Index + 1. If not just replace the Entry at Index
>>+ 1.
>>
>>This works pretty well!
>>
>>Greetings Volker
>
>What are your results for %-of-nodes reduction?

Sorry, I don´t know any more. But it is not very high.

Greetings Volker



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