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Subject: Re: killers and history

Author: Peter McKenzie

Date: 09:27:28 01/23/03

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On January 23, 2003 at 05:36:12, Uri Blass wrote:

>On January 23, 2003 at 03:57:45, Peter McKenzie wrote:
>
>>Sounds like you are doing history heuristic.  A couple of points (which you
>>might know already):
>>
>>1) Make sure you have a separate history table for each colour.
>
>I have only one history table.
>Is it important to have seperate history table for each color?

Only if you want it to work well :-)

>
>Usually when from->to is often legal for white it is not often legal for black.
>
>I may also get rid of the history table in the future and I guess that there are
>better alternatives for order of moves.
>
>I read that some programmers (like Tony Worten) found that getting rid of
>history tables made their program stronger so I guess that they have other rules
>to decide about order of moves that are simply better.
>
>I have only one 64*64 array like tscp.
>
>Uri



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