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Subject: Re: when to store nullmove failure in hashtable?

Author: Dan Honeycutt

Date: 13:36:33 09/27/04

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On September 27, 2004 at 15:32:05, martin fierz wrote:

>aloha!
>
>i just tried the following in my program:
>
>if a nullmove was tried and it failed, i saved a "nonull"-flag in my hashtable.
>when i got a hash hit, i checked whether nonull was set or not, if it was not
>set i did not attempt a nullmove.
>

I don't think you want to do that.  Just because the null move failed at the
current depth doesn't mean it will fail later at a different depth.

Dan H.

• Re: when to store nullmove failure in hashtable? martin fierz 13:41:01 09/27/04
  • Re: when to store nullmove failure in hashtable? Robert Hyatt 13:54:03 09/27/04
    • Re: when to store nullmove failure in hashtable? Steve Maughan 10:59:58 09/28/04
      • Re: when to store nullmove failure in hashtable? Robert Hyatt 11:59:37 09/28/04
        • Re: when to store nullmove failure in hashtable? martin fierz 13:33:40 09/28/04
          • Re: when to store nullmove failure in hashtable? Robert Hyatt 15:28:59 09/28/04
    • Re: when to store nullmove failure in hashtable? martin fierz 14:26:01 09/27/04

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