Author: Tony Werten
Date: 08:58:15 12/28/02
Go up one level in this thread
On December 28, 2002 at 11:45:37, José Carlos wrote:
>On December 28, 2002 at 11:18:58, Alessandro Damiani wrote:
>
>>On December 28, 2002 at 10:10:53, Ricardo Gibert wrote:
>>
>>>It seems Ed Schröder has added a bit more to his web page:
>>>
>>>http://members.home.nl/matador/chess840.htm#SEARCH
>>>
>>>I have the feeling that ES will be getting a lot of thank yous for quite awhile
>>>for his fine contributions to computer chess.
>>>
>>>Thanks again!
>>
>>It seems to me that there are two typos in the following code:
>>
>>{
>> if (remaining_depth > 2
>> && king_not_in_check
>> && move_is_no_capture
>> && move_is_not_giving_a_check) then
>> { if (ALPHA < SCORE + MARGIN) reduce depth with 1 }
>>}
>>
>>1) king_not_in_check <=> move_is_not_giving_a_check
>
>
> I guess he means both positions (before and after the move) are not in-check
>positiones.
>
>
>>2) instead of
>>
>> ALPHA < SCORE + MARGIN
>>
>> it should be
>>
>> ALPHA > SCORE + MARGIN
>>
>> since this is equivalent to
>>
>> SCORE < ALPHA - MARGIN
>
> I was about to comment on this. I agree with you.
> Also, I find strange the TABLE values, 0x500 = 1280, which is too large. I
>think he means just 500,700,900 etc.
My guess is Rebel uses 0x100 as a pawn value and Ed translated most of the
scores to decimal 100 except here.
Tony
>
> José C.
>
>
>>
>>Ed?
>>
>>Alessandro
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