cheng3 1.07 released

[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

[Graham Banks]

Thanks Martin.

[Sylwy]

Thank you Martin !

Just testing the new virtual creature !

SilvianR

[Adam Hair]

Thank you also, Martin.

[Werner]

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

best wishes
Werner

[mar]

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

[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.

[mar]

yes that sounds like a bug. it only looks in the default path
Will fix that ASAP, thanks Werner!

[geots]

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?

george

[mar]

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