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Subject: Questions:Extension,Pruning

Author: TEERAPONG TOVIRAT

Date: 15:41:52 03/25/02

Hi,

I've a few questions.

1. When we extend searching depth,which one should be
stored as hashtable->depth  depth or depth+extension?


Search(alpha,beta,depth)
{

Probehash()
if(check) extension+=...

-Search(-beta,-alpha,depth+extension-1)

Storehash() => here with depth or depth+extension ???

}


2.After I add Extended Futility Pruning,cutting off at prefrontier
nodes, to my program,it miss mate in 1.
How to fix this?

3.Recapture extension makes my program much slower.
How much benefit do we gain from it?


Thanks for any comment,
Teerapong

• Re: Questions:Extension,Pruning Vincent Diepeveen 04:53:45 03/26/02
• Re: Questions:Extension,Pruning Robert Hyatt 18:21:41 03/25/02
• Re: Questions:Extension,Pruning Gian-Carlo Pascutto 15:56:22 03/25/02
  • Re: Questions:Extension,Pruning TEERAPONG TOVIRAT 16:09:30 03/25/02
    • Re: Questions:Extension,Pruning Gian-Carlo Pascutto 23:06:42 03/25/02
    • Re: Questions:Extension,Pruning Antonio Dieguez 17:42:51 03/25/02
    • Re: Questions:Extension,Pruning Will Singleton 16:22:51 03/25/02
      • Re: Questions:Extension,Pruning Gian-Carlo Pascutto 22:59:40 03/25/02
        • Re: Questions:Extension,Pruning Will Singleton 05:29:51 03/26/02
          • Re: Questions:Extension,Pruning Vincent Diepeveen 08:36:32 03/26/02
            • Re: Questions:Extension,Pruning Will Singleton 13:04:23 03/26/02

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