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Subject: Re: THIS IS worlds toughest mate in 4

Author: leonid

Date: 07:36:10 10/18/03

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On October 18, 2003 at 10:29:44, leonid wrote:

>On October 17, 2003 at 22:28:50, William Kerr wrote:
>
>>Hi leonid
>>
>>Here are some times for your modified position.
>>
>>[D] 1R2NnqN/3pPpQ1/b3nPpp/K2R2bk/4pPrr/6Pp/4B2P/3N4 w - -
>>
>>
>>YacePdb AMD 1.7Gh  1:07  mate in 7
>>Ruffian 1.0.5 AMD 1.7Ghz mate in 7 1 sec.
>
>Good! Now I only need to put this position for 6 brute search. This will be not
>very long even for my program.
>
>Ruffian mate in 7, in one second is impressive. I do not remember what was mine
>but it was for sure more than this and for 8 moves.

Sorry, my mistake! Only after leaving this position that I found that I thought
about one position when looking into the other one. I just found that this
modified position I have just on my desk but without indication at what depth it
was solved. I can only see that time of selective solution was 0.33 sec. Still
it is, probably, result for 8 moves and not for 7.

Leonid.

>Leonid.
>
>
>
>>Bill



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