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Subject: Re: KRRNKRR win in 290: a new record

Author: Yakov Konoval

Date: 22:49:08 10/17/05

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On October 17, 2005 at 14:56:19, Uri Blass wrote:

>On October 17, 2005 at 14:39:55, Joachim Rang wrote:
>
>>fascinating. :-) I wonder where the limit is. I can't imagine a win in 500 moves
>>even with 12-men. Do you have any basis for speculation regarding this?
>>
>>Joachim
>
>I guess that there is a win in 500 moves even with the 8 piece tablebases and
>maybe even with the 7 piece tablebases.
>
>I am not sure what is the maximal distance to conversion in 3,4,5 piece
>tablebases but it seems that usually the maximal distace to conversion is more
>than multiplied by 2 with every piece that we add.
>

>Uri

Just 1 funny example:

1*2*3 = 3!
2*3*4 = 4!
4*5*6 = 5!
8*9*10= 6!
but 16*17*18 <> 7!


For 64-piece tablebases MaxDTC = 1. I think, that 290-move record may be
improved, but there are no position with MaxDTC >= 243*2.
By the way, how long is MaxDTM for chess problems ?

Yakov




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