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Subject: Re: How many 7-man Pawnless endgames?!

Author: Les Fernandez

Date: 17:03:56 10/18/05

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On October 18, 2005 at 12:37:17, Marc Bourzutschky wrote:

>On October 18, 2005 at 11:12:03, GuyHaworth wrote:
>
>>
>>I question your '736'.
>>
>>I have:
>>
>>  056  6-1 endgames
>>  140  5-2 endgames
>>  200  4-3 endgames
>>  ---
>>  396  endgames
>>
>>... and therefore 792 endgames, if you also count the 3-4, 2-5 and 1-6 endgames.
>>
>>Have I gone wrong somewhere?
>>
>>g
>
>All entries in a 1-N database are trivially either "not-won" or "not-lost", so
>there is no point in generating it.  If you exclude the 56 1-6 endings from your
>count you get Yakov's 736.
>
>-Marc

Hi Marc,

I agree that from the standpoint of playing chess there is no point in
generating the 1-6 endings but from my perspective I have been doing a bunch of
studies on all the end game sets that have been generated so far and it is very
important for me to get the complete data sets.  I have mentioned to Eugene in
the past that I would only hope that when he is done with all the 6 piece EGTB's
if he might consider that 1-5 set and the jury is still out.  I am sure that
those positions like 1-5 or 1-6 should solve pretty quickly and I would do them
if I had the extra equipment to do so.

Thanks,

Les



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