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

Author: Yakov Konoval

Date: 21:43:50 10/19/05

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On October 19, 2005 at 14:19:39, Joshua Shriver wrote:

>Is the tbgenerator available for home use? Open source? Run on Linux?
>
>I have a couple boxes I'd be willing to donate tbgen time to.
>
>Joshua Shriver
>jshriver <at> gmail.com
>
>
>
>>
>>There are 736 7-man pawnless EGTs in our (with Marc) metric. About 40 of them
>>are already done. Many of remaining EGTs are not interesting. But calculation
>>of all 7-man EGTs really may take a few years (or a few hundred computers + a
>>few weeks). And from these 40 EGTs we already have 5 EGTs with MaxDTC >= 200.
>>
>>Yakov

I think, that my tbgenerator will be available soon. But it is useless without
data mining programms.
It is written in Assembler-586 (so the source code isn't interesting) and can be
run only on Windows. The technical article should be much more interesting, than
the source code.

Now I have some statistics (for Dann Corbit's question):

The total number of 3+4+5-man pawnless EGTs in yk-format = 130.
The total size of 130 EGTs = 1,473,493,622 bytes.
The total time of generation - less than 5 hours for my Celeron-1300
computer.

There are 100 3+4+5-man EGTs with pawns. For DTZ-metric compression is
much better in comparison with DTM-metric.
I already have written beta-version of pawn-generator. For knnkp the size of
EGT is about 2 times less than in Nalimov's format.

I expect, that the total size off all 230 EGTs will be about 4 GB.

And 2 important features are:
1. Now we are using zlib-library for compressing. Datacomp.exe gives better
compression.
2. For a data-mining program with 2-ply search only the smallest of wtm/btm
EGTs is needed.

Yakov




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