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Subject: Re: which 6 man tablebases are the most important?

Author: Uri Blass

Date: 15:17:23 04/02/04

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On April 02, 2004 at 17:56:58, Robert Hyatt wrote:

>On April 02, 2004 at 16:22:19, Jonas Bylund wrote:
>
>>Thank you very much for your detailed answers!
>>
>>When you say Diep already runs in windows mode, does that mean that it runs DOS
>>or "real" windows mode? (sorry about not being clear on that in my original
>>post)
>>
>>10GB for all the 3+4+5+6 tb's would be a HUGE success as would 20GB of course!
>
>It is also "vaporware".  3-4-5-6 tables will _not_ fit into 10 gigabytes.

Yes but it is possible that tables that are enough to play 3-4-5-6 perfectly may
fit 10 gigabytes.

Suppose that you have tables that have only 1/32 of the information in the
original 6-piece tables(it has information about exact distance to mate only if
the index of the position is divisible by 32).

You can still use them in 1/32 of the positions in case that the index of the
position is in the table.

In case that the index of the position is not divisible by 32 you can search
forward and in order to check if the index of the position is divisble by 32 you
do not need to look at the table.

Now the question is if programs who use the smaller tables can practically play
6-piece positions perfectly or cannot do it.

Uri



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