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Subject: Re: a question about speed difference that I do not understand

Author: Uri Blass

Date: 06:43:25 12/05/01

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On December 05, 2001 at 08:48:21, Sune Fischer wrote:

>On December 05, 2001 at 08:13:38, Uri Blass wrote:
>
>>My guess was correct
>>
>>Time of my programs to calculate perft from the initial position are now on
>>p800:
>>perft 6 18.597 seconds
>>perft 7 450.117 seconds
>>
>>
>>I believe that there is no free program that is faster but correct me if I am
>>wrong.
>>
>>Uri
>
>Hehe, congrats :)
>
>I haven't tested mine, but what kind of information are you updating in the move
>rutines?
>My initial "skeleton"-program was doing about 8-12 Mnps without bitboards and
>eval and hash and all that (on an Athlon 1gig).
>
>How many nodes is there in perft 6 and 7, I'll try and beat ;D
>
>-S.
if nodes means only makemove
there are perft 1+perft 2+perft 3+perft 4+perft 5 nodes in perft 6 that means
5072212 because I do not need to make the last ply to calculate the number of
the moves.

if you ask for the value of perft 6 and perft 7 then my program got the correct
numbers:
perft 6=119060324
perft 7=3195901860

Uri



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