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Subject: Re: And here's another problem for you (Knightshead4mate Revisited)!

Author: leonid

Date: 16:38:53 01/21/01

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On January 21, 2001 at 18:02:44, Paul wrote:

>On January 21, 2001 at 17:25:53, leonid wrote:
>
>>If you program found mate in 12 moves ahead, in this situation, it is rock
>>solid!
>
>Unfortunately it isn't :) The movegenerator & search parts are ok I think.
>However, I have problems with mates from EndGameTables ... but I will find
>the bug soon I hope!


If this is not the author secret, please say what it is "EndGameTables"?


>>This was surprise for me! Only when Heiner found that there is no mate in 10
>>that I understood that this position is very deep. My program will never see all
>>those 12 moves completely. Too much time. I create all my positions by using my
>>selective search. I try to find what is the minimum number of moves that lead to
>>the mate but not beyond 6. For this I should have, at least, better computer and
>>hash in my program.
>
>It was pretty deep! And the solution is pretty also! I have a nice GUI ...
>hmmm ... Graphical User Interface :), so when my program finds the first
>move it immediately plays out the entire mate from hash, and with all those
>Queens sliding across the board ... it was a pretty sight!!
>
>Here's a problem for you in return my friend, it's not mine however:
>
>[D]5n2/B3K3/2p2Np1/4k3/7P/3bN1P1/2Prn1P1/1q6 w - - 0 1
>
>The solution is also very funny, but be warned! it's verrrry deep :)
>Mine solves this instantly ;)
>
>Groetjes,
>Paul

Thanks! Will try your.

Leonid.



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