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Subject: Re: Why do you add 2^depth?

Author: Larry Griffiths

Date: 13:51:12 08/29/00

Go up one level in this thread

On August 29, 2000 at 16:13:31, Severi Salminen wrote:

>Hi!
>
>>I plan on implementing it to see what happens.  This heuristic is related to
>>killer moves and uses the from and to squares in a 64 x 64 array to maintain
>>history information when moves are bestmoves or cutoffs.  Each entry has 2 to
>>the depth power added to it when a bestmove or cutoff is found.
>
>
>Why do you add a value depending on depth (2^depth)? Why not just increment by
>1? Just asking because I'm new to chess programming techniques and I'm starting
>to program my own creature...
>
>Severi

I believe the idea was to give higher weights to nodes near the root since they
are not updated as often.

Larry.

• Re: Why do you add 2^depth? Bo Persson 14:17:55 08/29/00
  • Re: Why do you add 2^depth? Severi Salminen 02:41:01 08/30/00
    • Re: Why do you add 2^depth? Bruce Moreland 10:36:54 08/31/00
      • Re: Why do you add 2^depth? Larry Griffiths 16:31:02 09/01/00
      • Re: Why do you add 2^depth? Dave Gomboc 07:21:13 09/01/00
        • Re: Why do you add 2^depth? Bruce Moreland 02:09:50 09/03/00
        • Re: Why do you add 2^depth? Robert Hyatt 06:05:25 09/02/00
    • Re: Why do you add 2^depth? Bo Persson 11:12:49 08/30/00
      • Re: Why do you add 2^depth? Severi Salminen 11:59:52 08/30/00
        • Re: Why do you add 2^depth? Robert Hyatt 07:47:21 08/31/00
        • Re: Why do you add 2^depth? Carlos del Cacho 14:03:05 08/30/00

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