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Subject: Re: perft and underpromotions

Author: Uri Blass

Date: 12:04:26 04/24/03

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On April 24, 2003 at 14:17:06, Uri Blass wrote:

>On April 24, 2003 at 13:58:10, Will Singleton wrote:
>
>>On April 24, 2003 at 13:37:52, Uri Blass wrote:
>>
>>>On April 24, 2003 at 13:33:16, Will Singleton wrote:
>>>
>>>>Hi,
>>>>
>>>>I'm looking for a program that does perft without underpromotions.  Thanks.
>>>>
>>>>Will
>>>
>>>modifying movei to do perft without under promotions is easy only changing one
>>>line in the source code.
>>>
>>>Why do you need it?
>>>
>>>Uri
>>
>>I don't do underpromotions.  I'd appreciate if you could send me the modified
>>movei, thanks very much!
>>
>>Will
>
>I will send you it in the next few hours.
>
>I am now busy in writing my evaluation in a more convenient way to change and
>testing for bugs by asking the program to compare new evaluation with old
>evaluation and when they do not agree I know that I have bug in one of my
>evaluation because they are supposed to be the same.
>
>Uri

I sent it few minutes ago.

I still did not finish finding bugs in the evaluation(I know that there are
cases when the new evaluation is still not exactly like the old one but the case
that I found was not a case that I expected) but I decided to change the
program because the result of perft is not dependent on the bugs and I sent only
a faster version that calculates perft and skip the parts that I change.

Uri



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