cheng3 1.07 released

Discussion of anything and everything relating to chess playing software and machines.

Moderators: hgm, Rebel, chrisw

mar
Posts: 2596
Joined: Fri Nov 26, 2010 2:00 pm
Location: Czech Republic
Full name: Martin Sedlak

cheng3 1.07 released

Post by mar »

Hi all,

the new version of cheng is available here as usual: http://www.vlasak.biz/cheng/
Thanks go to Jim Ablett who was kind enough to build the Windows PGO versions for me and of course Emil Vlasak for hosting.

Changes: some minor eval tweaking, futility pruning at higher depths, removed old ugly zobrist table. It's still ugly but 400kB worth of source code smaller. Estimated elo gain: +20 to +30 but I was wrong many times before anyway.

Note that this version supports personality files, see readme. There should be a plenty of parameters to play with.

There are also experimental Linux and OSX builds (both x64 only, no tablebases because I'm too lazy). Should work fine under XBoard + polyglot (tested in Ubuntu) and under SigmaChess (OSX).

have fun!

Martin
User avatar
Graham Banks
Posts: 42611
Joined: Sun Feb 26, 2006 10:52 am
Location: Auckland, NZ

Re: cheng3 1.07 released

Post by Graham Banks »

Thanks Martin. 8-)
gbanksnz at gmail.com
User avatar
Sylwy
Posts: 4622
Joined: Fri Apr 21, 2006 4:19 pm
Location: IASI - the historical capital of MOLDOVA
Full name: SilvianR

Re: cheng3 1.07 released

Post by Sylwy »

Thank you Martin !

Just testing the new virtual creature ! :lol:

SilvianR :wink:
Adam Hair
Posts: 3226
Joined: Wed May 06, 2009 10:31 pm
Location: Fuquay-Varina, North Carolina

Re: cheng3 1.07 released

Post by Adam Hair »

Thank you also, Martin.
User avatar
Werner
Posts: 2912
Joined: Wed Mar 08, 2006 10:09 pm
Location: Germany
Full name: Werner Schüle

Re: cheng3 1.07 released

Post by Werner »

Thanks Martin,
I have one question?
What has happened with gtb support?

best wishes
Werner
Werner
mar
Posts: 2596
Joined: Fri Nov 26, 2010 2:00 pm
Location: Czech Republic
Full name: Martin Sedlak

Re: cheng3 1.07 released

Post by mar »

Werner wrote:Thanks Martin,
I have one question?
What has happened with gtb support?

best wishes
Werner
Well it should be there... I added a test for not reporting gtb-related parameters when no gtb is found (needed that for Linux and OSX builds as I have no gtb support there)
It's safe because it doesn't report gtb parameter only if gtb wouldn't be used anyway. Have you had any tbhits in the previous version?

Martin
User avatar
Werner
Posts: 2912
Joined: Wed Mar 08, 2006 10:09 pm
Location: Germany
Full name: Werner Schüle

Re: cheng3 1.07 released

Post by Werner »

Hi,
I miss the uci parameters for gtb:
opening book not found
uci
id name cheng3 1.07 JA
id author Martin Sedlak
option name Hash type spin min 1 max 1024 default 4
option name Clear Hash type button
option name Ponder type check default true
option name Skill type spin min 0 max 100 default 100
option name MultiPV type spin min 1 max 256 default 1
option name OwnBook type check default true
option name PersonalityFile type string default
uciok

yes- I have had tbhits with 1.06 - but no with new version?
The engine should know where the gtbs are stored.
Last edited by Werner on Sun Jan 22, 2012 11:14 am, edited 1 time in total.
Werner
mar
Posts: 2596
Joined: Fri Nov 26, 2010 2:00 pm
Location: Czech Republic
Full name: Martin Sedlak

Re: cheng3 1.07 released

Post by mar »

yes that sounds like a bug. it only looks in the default path :oops:
Will fix that ASAP, thanks Werner!
User avatar
geots
Posts: 4790
Joined: Sat Mar 11, 2006 12:42 am

Re: cheng3 1.07 released

Post by geots »

mar wrote:Hi all,

the new version of cheng is available here as usual: http://www.vlasak.biz/cheng/
Thanks go to Jim Ablett who was kind enough to build the Windows PGO versions for me and of course Emil Vlasak for hosting.

Changes: some minor eval tweaking, futility pruning at higher depths, removed old ugly zobrist table. It's still ugly but 400kB worth of source code smaller. Estimated elo gain: +20 to +30 but I was wrong many times before anyway.

Note that this version supports personality files, see readme. There should be a plenty of parameters to play with.

There are also experimental Linux and OSX builds (both x64 only, no tablebases because I'm too lazy). Should work fine under XBoard + polyglot (tested in Ubuntu) and under SigmaChess (OSX).

have fun!

Martin


Thanks also from me. Would it be possible for you to get me the address of the girl/woman/lady, whatever, in the picture on your site where she is removing something from her purse? :roll:

george
mar
Posts: 2596
Joined: Fri Nov 26, 2010 2:00 pm
Location: Czech Republic
Full name: Martin Sedlak

Re: cheng3 1.07 released

Post by mar »

Werner wrote:Hi,
I miss the uci parameters for gtb:
opening book not found
uci
id name cheng3 1.07 JA
id author Martin Sedlak
option name Hash type spin min 1 max 1024 default 4
option name Clear Hash type button
option name Ponder type check default true
option name Skill type spin min 0 max 100 default 100
option name MultiPV type spin min 1 max 256 default 1
option name OwnBook type check default true
option name PersonalityFile type string default
uciok

yes- I have had tbhits with 1.06 - but no with new version?
The engine should know where the gtbs are stored.
A fast workaround until i get a new compile:
create gtb directory in the root (on the disk from which you run the engine) and copy in the 3-man files only. It should enable you to change the path.

Martin