New Winboard & UCI Engine, Jabba 1.0

[Richard Allbert]

Hi!

Jabba 1.0 goes public today

The short version.... a weak engine for Winboard and UCI isavailable, with source, here

http://www.filehosting.org/file/details ... ba_1.0.zip

Updates and news on this blog... (which is a bit bare at the moment)

http://jabbachess.blogspot.com/

The slightly longer version...

I started over a year ago to "redo" a chess engine using the c++ knowledge I had gained since starting Lime four years ago. When you look at the source for Lime, it's clearly strongly influenced by other OS engines, and I wanted to start from scratch.

The result is "Jabba" - which is pretty much OO in c++, and possibly the weakest engine in terms of elo per line of code.

However, I'ver really enjoyed writing it, and at there is room for improvement!

It has quite a bit of functionality.... self EPD testing, bookmaking, search tests (all writting to make testing easier). Those who read the code should be able to see how this is done.

It is has 0x88 Board Rep, with bitboards for pawns (maybe the only engine that does this?? )

I've tried hard to avoid globals.... the main game structure is local... but it's far from perfect.

I would really appreciate feedback, as this isn't my job / academic field... it's a hobby.

I really want to say a BIG thank you to Olivier, Leo, Dann Corbit, Swami (for STS), Graham, HG, Richard P (for CPT) and all the other testers and contributors to this excellent community.

Hopefully, there'll be a 64 bit version along soon.


I apologise in advance for errors.....

And Rybka, you don't need to worry.... YET!!

[Graham Banks]

Thanks Richard. Best wishes with your efforts.

[pgeorges]

I would like to try it but I find the download process a bit unfriendly : would it be possible to get it without giving one's email ?

Pascal Georges

[Richard Allbert]

Oops... I didn't know that was a requirement

I need somewhere to host the file, I wanted to extend my Yahoo one, but they don't accept my address.

I'll try to find another

Richard

[Richard Allbert]

Ok, new link

http://jabbachess.fileave.com/Jabba%201.0.zip

Any problems, let me know

[Richard Allbert]

Hi Graham,

Thanks!!

Richard

[Guenther]

Hi Richard,

You are welcome as always :) How did you arrive at that name
and what is its meaning?
Guenther

[Richard Allbert]

Your welcome!

Nickname from school... mainly for talking too much!!

[pgeorges]

I tried ... to try it but there is no makefile (for gcc under Linux). So I created this one :

Code: Select all

MAKE = make
CXX = g++
RM = rm
EXE = jabba
FLAGS = -O3 -msse -Wall -fno-exceptions -fno-rtti
LDFLAGS =
OBJS = attack.o book.o evalbalance.o evalqueens.o hashtab.o interrupt.o make.o movegen.o \
perft.o searcher.o uci.o bits.o clock.o eval.o evalrooks.o history.o jabba.o material.o movelist.o \
piece.o squares.o utils.o board.o driver.o evalpawn.o fen.o ini.o log.o move.o pawntab.o psqt.o testers.o xboard.o

all: $(EXE) .depend

clean:
	$(RM) *.o .depend *~ $(EXE)

$(EXE): $(OBJS)
	$(CXX) $(LDFLAGS) -o $@ $(OBJS)

.depend:
	$(CXX) -msse -MM $(OBJS:.o=.o) > $@

include .depend

but gets plenty of error ( given up after a few "corrections") given that I guess the code was written for other compilers (MS ?).
Maybe this example of Makefile may help others if they want to try it with gcc ...

Pascal Georges

[Richard Allbert]

It compiles for me with msvc++ ... there were a couple of errors with gcc.

Should work now.

Regards

Richard