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Subject: Re: question about hash tables

Author: martin fierz

Date: 16:26:43 05/07/02

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>A single always-replace table will not be anywhere near as good as the two-table
>approach most of us use (one is always replace, the other is replace with deeper
>draft only).

i used to use a two-table approach in my checkers program, with one table being
used for all nodes which were <N plies from the root, the other for >=N. in the
first table, i replaced with deeper draft only, in the second, i always
replaced. i changed it to a single table after finding no significant
difference; in the single table i have a hash bucket size of 2, and replace the
entry in the bucket with the lower draft. this works better for me than the
double table - what did i do wrong with the double table?

aloha
  martin



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