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Subject: Re: what are the most important Six man tablebases?

Author: Mark Rawlings

Date: 05:04:10 09/09/02

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Any new record for longest mate in these?

Thanks,

Mark


On September 08, 2002 at 01:21:08, Eugene Nalimov wrote:

>Total size of all 3+3 and 4+2 pawnless TBs is ~235Gb. Part of them are already
>on your site; look into "TB/six" and "TB/upload" directories.
>
>Thanks,
>Eugene
>
>On September 06, 2002 at 21:22:53, Robert Hyatt wrote:
>
>>On September 06, 2002 at 18:48:01, Eugene Nalimov wrote:
>>
>>>Actually, I generated all 3+3 and 4+2 pawnless tables but two; twose last two
>>>are being generated right now.
>>>
>>>After that I'll start 6-men with pawns.
>>>
>>>I just cannot transfer those tables to your site. Probably I should just send
>>>you disk drive by mail... Can you find XP computer with 1394 connector for the
>>>external disk?
>>>
>>>Thanks,
>>>Eugene
>>
>>You are talking about IEEE 1394 firewire?  Yes, we have such a box.  We
>>use a firewire disk to store "images" of our windows 2000 stuff so that
>>if something goes wrong, we can push the whole kit and kaboodle back out
>>to the machine...
>>
>>But I must ask...  how big a firewire drive are you going to send?  IE how
>>big is my ftp machine going to have to be?  :)
>>
>>
>>
>>
>>
>>>
>>>On September 06, 2002 at 18:38:48, Robert Hyatt wrote:
>>>
>>>>On September 06, 2002 at 16:27:22, Dieter Buerssner wrote:
>>>>
>>>>>On September 06, 2002 at 16:14:19, Robert Hyatt wrote:
>>>>>
>>>>>>>What is the estimated size [of kppkpp]?
>>>>>
>>>>>>at least 1000 gigabytes (a terabyte)
>>>>>
>>>>>How do you estimate this?
>>>>>
>>>>>My simple estimation (ignoring the ep problem, but it should not make a bigger
>>>>>factor) would be:
>>>>>
>>>>>3612 * 48 *47 / 2 * 46 * 45 / 2
>>>>>
>>>>>which would make 4 Gb positions, compressed obviously less. Even 64^6 (taking no
>>>>>symmetry into account) is "only" 64 gigabytes.
>>>>>
>>>>>Regards,
>>>>>Dieter
>>>>
>>>>
>>>>The threes/fours/fives are 7.5 gigs already.  But even more importantly,
>>>>the 6's are going to blow a byte for scores...  So they are going to be
>>>>twice the size to boot.
>>>>
>>>>I already have some compressed 6 piece tables that are > 2.0 gigabytes.  We
>>>>have almost 100 gigs with no pawns done yet, and not all of 3 vs 3 are
>>>>done yet...  much less 4 vs 2, 1 vs 5 and then those pawns...
>>>>
>>>>IMHO a terabyte is a lower bound...  not upper.



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