Author: leonid
Date: 13:02:04 10/05/01
Go up one level in this thread
On October 05, 2001 at 15:25:39, Paul wrote: >On October 05, 2001 at 10:08:44, leonid wrote: > >>On October 04, 2001 at 20:49:59, Paul wrote: >> >>>On October 04, 2001 at 19:01:32, leonid wrote: >>> >>>>Paul and Heiner! It will be nice if somebody between you, from time to time (at >>>>least once in a two months) will come here and give some concrete example of how >>>>Chest must be put into work. For Windows and Linux. At least, as long as not >>>>graphics oriented version will be on the Web. >>> >>>The simple way (what I've done up until now) is this: >>> >>>1. create a new text file in the folder where you've got your chest319.exe >>>2. double click on it (this should open notepad) >>>3. copy the following line into the file: >>> for %%i in (3 4 5 6 7 8 9 10 11 12 13) do chest319 -Z%%i -b t.txt >>>4. save the file as 'b.bat' and close notepad >>> >>>5. create a new text file in the folder where you've got your chest319.exe >>>6. double click on it (this should open notepad) >>>7. copy the epd of your problem into the text file, for example: >>> r4rk1/ppRn1p2/6pb/1P2pq1p/3N4/P1QPn1Pb/1B1NPP1P/4R1KB b - - >>>8. save the file as 't.txt' and close notepad >>> >>>After this you can double click on the 'b.bat' file. You'll see a DOS window >>>appear, and in it Chest will first try to find a mate in 3, then 4, then 5, etc. >>>In this case it will find a mate in 7 in a minute or so. >>> >>>Chest presents the solution in an EPD string. The most important parts are: >>> >>>dm 7; (it's a mate in 7) >>>bm Qxf2+; (best move is Qxf2+) >>>pv Qxf2+ Kxf2 Ng4+ Kf3 e4+ Kxe4 Ngf6+ Kf3 Ne5+ Kf2 Nfg4+ Kg1 Be3#; (a solution) >>> >>>Sometimes there is more than one best move, you'll see that in the 'bm' section. >>> >>>If your Chest exe file is called differently, you'll have to edit that in the >>>batch file above. And if you want to use Chest on another problem later, just >>>edit the t.txt file in notepad, replace the problem-string, save it, and run >>>b.bat again. >>> >>>Oh, and if you don't want to wait for the batch file to finish, you can stop it >>>by opening the system menu of the DOS window (top left icon), chosing 'Close' >>>and clicking 'Yes'. >> >> >>Paul, you are Great! Your explanation was what it should to be and worked >>instantly for me. I tried on the spot one position that I created yesterday. >>Response was wonderful. Now few positions that are just too slow without hash, >>or good branching factor, now have their second chance to know their minimal >>solution. Thanks very much!!!!!!!!!!!!!!! > >Glad I made you happy! > >>Paul, if you know how to ask for indication for the time during the solution, it >>will be good. But this is only if you know this by heart. > >The number that follows 'acs' in the output line is the time taken for finding >the solution, and the number after 'acn' is the number of nodes visited during >the search. Heiner will correct me if I'm wrong. > >There is also a way to output the solution to a file instead of to the screen. >Just make another batch file like in steps 1 to 4 above, only copy this line >into it: > >for %%i in (3 4 5 6 7 8 9 10 11 12 13) do chest319 -Z%%i -b t.txt >> output.txt > >and save it to 'bo.bat' for example. > >When you double click on this 'bo.bat' however, you'll only see Chest iterating >on screen in the DOS box, but no solution. For the solution you will have to >periodically check the file 'output.txt' in the same folder, for example every >time after you see a line being added on screen. Only when Chest finds the >solution, a string will be printed into the output file. > >You can get even more statistical information by making yet another batch file >with this line in it: > >for %%i in (3 4 5 6 7 8 9 10 11 12 13) do chest319 -Z%%i -s -b t.txt >> >output.txt > >Here also, you will have to periodically check the file 'output.txt'. > >Every output of Chest will be added to this output file, so you will have to >empty, delete or rename it (if you want to keep the analysis) yourself before >you start a new analysis. > >This last batch file really gives a wealth of information, you will have a ball >reading that! It also gives the time for each iteration, not just the time to >the solution. And also a lot of other info for each iteration. > >Hope this is clear ... but if not, just ask! Its a great thing to have a friend on Web! Will print all your explanation and will try it immediately. Big thanks! Leonid. >Groetjes, >Paul
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