Author: Peter Karrer
Date: 12:53:23 09/24/99
Go up one level in this thread
There's a little problem with your tbindex.cpp (from tbgen_new.zip) code in this
regard.
FRegistered(tb, x_colorBlack) will fail for symmetric tables e.g. KQQKQQ.
My workaround was
if (rgtbdDesc[tb].m_fSymmetric && side == x_colorBlack) {
psqW = blackPieces;
psqB = whitePieces;
side = x_colorWhite;
}
On September 24, 1999 at 12:24:23, Eugene Nalimov wrote:
>Pawnless files withe equal material ("symmetric") are absolutely identical. I
>ignored that fact when the only such files were KNKN, KBKB, KRKR, and KQKQ, as
>total saving were ~6Mb, and I decided not to complicate the program. But with 6
>man TBs saving is much more, so I modified the code. Now for pawnless symmetric
>TB only WTM file is necessary.
>
>For TB with pawns situation is more complicated: it's necessary to "flip" the
>board for BTM. I had not done it yet, and I think that we have more than enough
>time before that issue will become actual.
>
>Eugene
>
>On September 24, 1999 at 11:23:43, Dave Gomboc wrote:
>
>>On September 24, 1999 at 02:48:21, Dann Corbit wrote:
>>
>>>On September 24, 1999 at 02:43:55, Dave Gomboc wrote:
>>>
>>>>On September 24, 1999 at 02:39:34, Dann Corbit wrote:
>>>>
>>>>>And another thing:
>>>>>I notice that we have only:
>>>>>ftp://ftp.cis.uab.edu/pub/hyatt/TB/kqqkqq.nbw.emd
>>>>>and
>>>>>ftp://ftp.cis.uab.edu/pub/hyatt/TB/krrkrr.nbw.emd
>>>>>
>>>>>Is there a plan to create the .nbb files, or is this strictly for the Kasparov
>>>>>match?
>>>>
>>>>Well, the data would be exactly the same, so why would you want to waste the
>>>>space? (Both sides have the same material.)
>>>Does not seem to make any difference. For some reason (unknown to me) it does
>>>not seem to be symmetrical. For example:
>>>ftp://ftp.cis.uab.edu/pub/hyatt/TB/kbkb.nbb.emd
>>>ftp://ftp.cis.uab.edu/pub/hyatt/TB/kbkb.nbw.emd
>>>or:
>>>ftp://ftp.cis.uab.edu/pub/hyatt/TB/kpkp.nbb.emd
>>>ftp://ftp.cis.uab.edu/pub/hyatt/TB/kpkp.nbw.emd
>>>
>>>Strangly (to me at least because I don't understand why) they are not always
>>>even the same size.
>>>
>>>
>>>Same material, but two different files.
>>
>>In that case, I probably misunderstood the composition of the files. Sorry! :)
>>
>>Dave
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