Author: Heiner Marxen
Date: 20:22:25 11/03/01
Go up one level in this thread
On November 03, 2001 at 21:06:32, leonid wrote:
>
>>You can give it option "-s" at the command line, i.e. instead of
>> chest319 -b inputfile
>>you say
>> chest319 -b -s inputfile
>
>Thanks! I need exactly this.
Glad that I could help! :-)
>>Fortunately, there will be a version 4.1 to come, which will also include
>>Nalimov EGTBs and will work as a winboard engine. I hope to be ready
>>around Christmas.
>
>Do I understand well? Your program will come as compatible engin that could be
>used from programs like Fritz, Hiarcs and so like?
Yes, you do. It shall be used like any other winboard engine.
I already mentioned a few times that I will try that.
Since then I have had a deeper look into the xboard protocol,
and it is quite doable.
There are however many nasty technical points, like input polling, which
heve to be solved, first. I have looked in several xboard/winboard
engines, so I will be able to some similar input polling and timing.
Unfortunately, there appears to be no truely portable way to do these,
so I will have to give up absolute portability... sigh.
But in practice good portability can be achieved for many platforms.
Then I will need a logging file, and an ini-file, may be an environment
variable or two... etc, lots of details.
But I will definitely do it, no matter how long it will take. Happy? :-))
Being an xboard/winboard engine is the best way to avoid writing my own GUI,
which I will not do.
Unfortunately, I'm not very disciplined, and always play around with
options and so on. Today I completed some EGTB probing driver, which now
tells me thing like this:
CHEST version 3.23, 04-Nov-2001
Options = --egtb-test=1
Input file: 'i.ccc247'
Reading job:
# Posted by Jim Monaghan (Profile) on November 03, 2001 at 10:45:44:
# Subject: Re: Endgame Analysis
# http://www.icdchess.com/forums/1/message.shtml?195440
# Famous endgame of Reti
# White draw, first move is Kg7
% EGTB found tables for max 4 pieces
% EGTB uses 1542.1K memory internally
FEN: 7K/8/k1P5/7p/8/8/8/8 w - -
Probing EGTBs for legal tree, 1 plies deep...
EGTB value = 1 = draw
c7 --> [ 31] #14
Kg8 --> [ 29] #13
Kh7 --> [ 29] #13
Kg7 ! --> [ 1] draw
EGTB inited, maxcnt=4, allo=4.0M (+1.5M)
EGTB: 5 calls, 0 broken, 0 nopair, 0 notab, 5 done
EGTB: 0 ep, 2 draw, 3 wins, 0 loss
Now I can really see that the EGTB probing does work,
so now I'm satisfied with it. :-))
>If it is this, it is what I consider the most important before your solver will
>be in every big chess programs. Until now, I found only one mate solver engin in
>one professional program, between those that I have. As good as this engin
>inclusion looked to me (and I expect it will be in the next version of that
>chess program) your is well beyond seeing mate solving engin performance. No
>doubt in this! I verified some positions to see this.
That way Chest will be a real contribution :-)
>>>I hope that now Windows will become something of half way between previous
>>>Windows and actual Linux. Would like to see this. I am very fond of Microsoft
>>>Assembler.
>>
>>Hmmm, somehow I doubt it. But those doubts may well be wrong.
>>Let's hope and see...
>
>Probably what you say have much bigger chance to be realized that my hopes.
>Already IBM royally screw its good expectation to be first system by not
>providing open access to its OS/2 system. There IBM had its own SDK like package
>with the same heavy tag price and almost the same big company oriented policy.
>Why Microsoft will be wiser?
Oh, I suspect IBM thought to be very clever to do so.
And Microsoft also will continue to try to get as much money as they can.
That is the name of the game, isn't it?
> I just must stop dreaming and go to my Linux
>retraining. Probably, when I will have next computer for Linux, I will do just
>right this.
Just do it! Well, since I work with flavours of UNIX for over 20 years now,
my opinion may be biased. I definitely like Linux. I like open source.
The box I just use to write this is a pure Linux box, and I like it that way.
>Cheers,
>Leonid.
Cheers,
Heiner
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