Author: Ed Schröder
Date: 10:22:39 12/28/02
Go up one level in this thread
On December 28, 2002 at 11:58:15, Tony Werten wrote:
>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.
Also right, you guys are brilliant :)
Ed
>Tony
>
>>
>> José C.
>>
>>
>>>
>>>Ed?
>>>
>>>Alessandro
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