Question : How to use a java engine as an uci engine

[wolfman]

I have downloaded Carballo 1.7. This is a java engine. Is there an adapter as WB2UCI for java. If not , is it possible to use a java engine as an uci one ?
Thanks for your help.
Eran.

[hgm]

Being a 'Java engine' does not mean much. Only that you need a different command for starting it, invoking the Java iterpreter. Java engines can be UCI or WB like any other, and this and the GUI used determine whether you need an adapter, or which one.

[Colin-G]

I have downloaded Carballo 1.7. This is a java engine. Is there an adapter as WB2UCI for java. If not , is it possible to use a java engine as an uci one ?
Thanks for your help.
Eran.

I just downloaded it to try it.
It works ok in linux Mint 17.
It uses the bash script "carballo.sh" to run the java program as a UCI engine.



I made a polyglot file, carballo.ini, in the polyglot folder.

Code: Select all

[PolyGlot]
EngineName Carballo 1.7
EngineDir = /home/colin/carballo
EngineCommand = ./carballo.sh
Book = false
Log = false
Resign = true
ResignScore = 900

[Engine]
Hash = 64
Threads = 1
OwnBook = true
Ponder = false

and it works ok as a UCI engine in xboard with

Code: Select all

xboard -fd /home/colin/mychess/polyglot -fcp ./"polyglot carballo.ini"

I assume in Windows, you use the "carballo.bat" file to run it as a UCI engine, assuming you have java installed.

[hgm]

I made a polyglot file, carballo.ini, in the polyglot folder.

Code: Select all

[PolyGlot]
EngineName Carballo 1.7
EngineDir = /home/colin/carballo
EngineCommand = ./carballo.sh
Book = false
Log = false
Resign = true
ResignScore = 900

[Engine]
Hash = 64
Threads = 1
OwnBook = true
Ponder = false

and it works ok as a UCI engine in xboard with

Code: Select all

xboard -fd /home/colin/mychess/polyglot -fcp ./"polyglot carballo.ini"

I assume in Windows, you use the "carballo.bat" file to run it as a UCI engine, assuming you have java installed.

Note that the command

xboard -fcp ./carballo.sh -fd /home/colin/carballo -fUCI

should then also work, without making a polyglot.ini file. If you have Polyglot compliatly installed (i.e. in /usr/bin, /usr/games or /usr/local/bin),as it would be when you install it from the distro repositories or from the source code by "sudo make install".

[Norbert Raimund Leisner]

Hello wolfman,

http://www.oracle.com/technetwork/java/ ... 33155.html

https://www.excelsior-usa.com/articles/ ... rcial.html

http://jsmooth.sourceforge.net/

http://www.jar2exe.com/downloads

Carballo (= oak) is a UCI-compatible engine

cf. http://computer-chess.org/doku.php?id=c ... wiki:links
"Java applications"

Best wishes,
Norbert

http://www.comicmonsters.com/features/D ... 01_low.jpg (Wolfman logo)

[Colin-G]

I made a polyglot file, carballo.ini, in the polyglot folder.

Code: Select all

[PolyGlot]
EngineName Carballo 1.7
EngineDir = /home/colin/carballo
EngineCommand = ./carballo.sh
Book = false
Log = false
Resign = true
ResignScore = 900

[Engine]
Hash = 64
Threads = 1
OwnBook = true
Ponder = false

and it works ok as a UCI engine in xboard with

Code: Select all

xboard -fd /home/colin/mychess/polyglot -fcp ./"polyglot carballo.ini"

I assume in Windows, you use the "carballo.bat" file to run it as a UCI engine, assuming you have java installed.

Note that the command

xboard -fcp ./carballo.sh -fd /home/colin/carballo -fUCI

should then also work, without making a polyglot.ini file. If you have Polyglot compliatly installed (i.e. in /usr/bin, /usr/games or /usr/local/bin),as it would be when you install it from the distro repositories or from the source code by "sudo make install".

What you say is true, but the reason I use a separate linux polyglot executable and not have one installed from the repositories is that I have been using xboard since 2001, before the days of UCI engines. When UCI engines first came into being, the polyglot adapter had to be compiled manually and was not available to install from repositories. The xboard of those days also had no fUCI parameter.
Although I now use the latest xboard, I never use the fUCI functions because I had already generated some tcl/tk and bash control scripts, using a separate polyglot adapter where necessary, to easily select which engines play each other and settings, and have kept with them.

[hgm]

OK, fair enough. But for the benefit of others who are not burdened with such a legacy, it should be pointed out that messing with ini files is a needlessly cumbersome way to run UCI engines in XBoard.

[styx]

Anyone knows how to use CockooChess 1.12 in xboard under linux?

I tried the following line

Code: Select all

"CuckooChess" -fcp "java -Xmx2048m -jar /home/andreas/Dokumente/Chess/Engines/CuckooChess/cuckoo112.jar uci" -fd "." -fUCI

but it doesn't work.

Loading the engine causes a JVM process to start, using all the CPU power and 2,3 GB of RAM. I can load the engine's setting dialog without any problems, but it will never start to calculate moves.

I tried another Java Engine in xboard (Carballo) with the following line:

Code: Select all

"Carballo" -cp -fcp "java -jar /home/andreas/Dokumente/Chess/Engines/Carballo/carballo-1.7.jar" -fd "." -fUCI

and it works flawlessly.

[Guenther]

Anyone knows how to use CockooChess 1.12 in xboard under linux?

I tried the following line

Code: Select all

"CuckooChess" -fcp "java -Xmx2048m -jar /home/andreas/Dokumente/Chess/Engines/CuckooChess/cuckoo112.jar uci" -fd "." -fUCI

but it doesn't work.

Loading the engine causes a JVM process to start, using all the CPU power and 2,3 GB of RAM. I can load the engine's setting dialog without any problems, but it will never start to calculate moves.

...

I don't have Linux here, but your commandline looks right. I will try if
I can start it under Windows today, as it is not yet integrated in my WB setup.
(probably testing both ways - polyglot + uci2wb)

[styx]

I tried UCI2WB adapter too. But either the syntax is different (or some special parameters are needed) or UCI2WB is not ready to communicate with a JVM.