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Subject: Re: Hash and first Fail High

Author: Gian-Carlo Pascutto

Date: 13:18:50 08/14/03

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On August 14, 2003 at 15:27:06, Peter Fendrich wrote:

>1FH = The ratio where the first generated move in the node is a Fail High.
>
>I experimented with removing the the hash table and became a bit surprised.
>Normally I have about 1FH = 95-96%. When I removed the hash table that figure
>raised to more like 1FH = 96-97% while the search depth, as expected, was
>decreased.
>
>Increased 1FH when removing the hash table. Is this normal?

In my program, move ordering worses when I disable hashing.

Do you handle the case where there is no reliable move in the hash?

--
GCP

• Re: Hash and first Fail High Peter Fendrich 15:02:16 08/14/03
  • Re: Hash and first Fail High Uri Blass 15:32:01 08/14/03
    • Re: Hash and first Fail High Peter Fendrich 16:20:10 08/14/03
    • Re: Hash and first Fail High Gian-Carlo Pascutto 15:37:16 08/14/03
      • Re: Hash and first Fail High Uri Blass 15:51:58 08/14/03
        • Re: Hash and first Fail High Gian-Carlo Pascutto 15:58:30 08/14/03
  • Re: Hash and first Fail High Gian-Carlo Pascutto 15:31:25 08/14/03
    • Re: Hash and first Fail High Peter Fendrich 16:34:16 08/14/03

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