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Subject: Re: What's wrong? Fritz or TB's?!

Author: Robert Hyatt

Date: 06:42:24 03/22/01

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On March 21, 2001 at 22:14:25, Christophe Theron wrote:

>On March 21, 2001 at 21:32:09, Robert Hyatt wrote:
>
>>On March 21, 2001 at 19:03:55, Christophe Theron wrote:
>>
>>>On March 21, 2001 at 18:14:46, Robert Hyatt wrote:
>>>
>>>>On March 21, 2001 at 17:30:44, Andrew Dados wrote:
>>>>
>>>>>On March 21, 2001 at 17:00:29, Robert Hyatt wrote:
>>>>>
>>>>>>On March 21, 2001 at 16:21:59, Peter Berger wrote:
>>>>>>
>>>>>>>On March 21, 2001 at 15:58:38, Slater Wold wrote:
>>>>>>>>Now.  Something has gone wrong, either with Fritz reading the TB's, or the TB's
>>>>>>>>themselves.  Had Fritz just simply advanced the pawn, promoting it, then it was
>>>>>>>>a simple win most 1500 player could handle.  But for some reason, it wanted to
>>>>>>>>chase the king around!  The first thing I did, was do a scandisk and check for
>>>>>>>>any corrupted TB files.  There are none.  Then I compared my 5 piece TB size to
>>>>>>>>Hyatts on his server.  They are both the same.  So I would venture to say,
>>>>>>>>either Fritz had a problem reading it, or the KRPKR file is corrupt.  (However I
>>>>>>>>think Hyatt would have caught it by now.)  I have had several positions, where I
>>>>>>>>look @ the board, and say, "I COULD MATE THIS!"  and Fritz draws.  WHY?  I was
>>>>>>>>just curious if anyone else had the problem, and if anyone knew what the problem
>>>>>>>>was.
>>>>>>>>
>>>>>>>>Thanks,
>>>>>>>>Slate
>>>>>>>>
>>>>>>>>Also, if you look from #43 to #17 (the second one) the depth is always 1.
>>>>>>>>However, then it starts seeing depth 5!  With TB's (usually) it documents 1 ply
>>>>>>>>only!!
>>>>>>>
>>>>>>>This definitely would be a good one for a CCC FAQ . This happens if you have
>>>>>>>KRPKR on your harddisk ( which comes with the Fritz CD ) but not the subsets
>>>>>>>KRQKR , KRBKR et al .
>>>>>>>
>>>>>>>The problem is program knows KRPKR with the pawn on b7 is mate in 17 or so ; it
>>>>>>>also knows promoting the pawn it will be worse than that ( as it can't find this
>>>>>>>in a TB anymore ) . So this can be healed if you download the missing ones ( if
>>>>>>>you have enough space on your harddisk ) .
>>>>>>
>>>>>>
>>>>>>Or if Frans would just fix the program.  :)
>>>>>
>>>>>He, he... I remember when you resisted to do so for quite a while.. :)
>>>>
>>>>
>>>>Yep... Users are generally an unreasonable lot.  :)  They complain when the
>>>>screwdriver handle breaks when it is being used as a hammer.  They complain
>>>>when the hammer rips the head off of a screw when it is being used as a
>>>>screwdriver.
>>>>
>>>>With today's disk prices, I can not think of a single reason not to simply use
>>>>all the 3-4-5 piece files.  But some insist. :)
>>>
>>>
>>>Try to install these TB files on a handheld. :)
>>>
>>>
>>>    Christophe
>>
>>
>>I don't see why it can't be done.  My 20 gig drive in my notebook is not much
>>larger than a usual PCMCIA card.  That would fit into a hand-held quite easily
>>if the demand was there...
>
>
>Useability is the key for handheld computers. It could be possible to stuff a
>20Gb drive in it, but then with the current battery technology you could not use
>it for more than an hour.
>
>Then the handheld would be heavier, and after carrying it in your pocket for one
>month you would probably reconsider the idea.
>
>Anyway most handheld applications do not need that amount of storage.
>
>Even 128Mb of storage space, which is possible with today components (DRAM or
>Flash), would be far more than enough.
>
>I guess that users would prefer having wireless access to the Internet, phone
>capability, more battery life and a color screen rather than a hard disk.
>
>The philosophy of developpement for handhelds is very different than for PC,
>because resources are a real issue. If I had to develop a chess program for
>handheld computers, I would simply forget about bitboards, big hash tables, big
>opening books and TBs.
>
>
>
>    Christophe


Based on history, I'll make a wager with you.  Within 5 years the _typical_
hand-held will have 20 gigs of disk space.  We aren't far away from such disks
the size of a quarter (IBM has them working in the lab already).  With current
drains in the single-digit milliamp range.

IE my current Sony notebook is smaller than a sheet of paper, about 1" thick,
weighs under 4 pounds, and yet has a 750mhz processor with 256mb of RAM and a
20 gig drive.  That is probably the hand-held of 5 years from now...



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