Octochess r4741 released

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Codesquid
Posts: 138
Joined: Tue Aug 23, 2011 10:25 pm
Location: Germany

Octochess r4741 released

Post by Codesquid »

A new version of Octochess has been released.

The changes:
  • Shiny new logo
  • Fix endgame evaluation of KvNBK with black being the strong side
  • Two problems with null move heuristic fixed
  • Increase max search depth from 40 to 60 plies
  • Additional sanity checks on positions entered through FEN strings, this fixes crashes on some invalid positions.
  • Fix incorrect wait times on Linux. This was causing calculation to stop up to one second too early, in particular affecting games with fixed move times
  • UCI: Take internal overhead into account when calculating the movetime deadline
  • CECP: Use proper move notation
  • CECP: Support the deprecated edit mode entered through the edit command
  • UCI: Mark opening positions for further processing if not in book
  • Code cleanup, move generic utility code into own subdirectory
  • Improve diagnostic output
  • Bookgen: Improve pgn parser
  • Bookgen: Fix stale transaction
You can download the new version from http://octochess.org/
nanos gigantium humeris insidentes
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Graham Banks
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Joined: Sun Feb 26, 2006 10:52 am
Location: Auckland, NZ

Re: Octochess r4741 released

Post by Graham Banks »

Thanks Tim. 8-)
gbanksnz at gmail.com
kinderchocolate
Posts: 454
Joined: Mon Nov 01, 2010 6:55 am
Full name: Ted Wong

Re: Octochess r4741 released

Post by kinderchocolate »

Thanks
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Werner
Posts: 2871
Joined: Wed Mar 08, 2006 10:09 pm
Location: Germany
Full name: Werner Schüle

Re: Octochess r4741 released

Post by Werner »

Thanks Tim,
I have had no crashes in the last 50 games with older version. I will now test the new one.

All the best
Werner,
CEGT team
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jshriver
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Joined: Wed Mar 08, 2006 9:41 pm
Location: Morgantown, WV, USA

Re: Octochess r4741 released

Post by jshriver »

Anxious to try this engine out but sadly it crashed on every machine I've tried. All linux machines. Do you have a more generic build besides the one that's listed as generic? Something geared toward 686, or even 64bit without popcount?

The error is always a segfault on unknown instrunction.

-Josh
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Codesquid
Posts: 138
Joined: Tue Aug 23, 2011 10:25 pm
Location: Germany

Re: Octochess r4741 released

Post by Codesquid »

jshriver wrote:Anxious to try this engine out but sadly it crashed on every machine I've tried. All linux machines. Do you have a more generic build besides the one that's listed as generic? Something geared toward 686, or even 64bit without popcount?

The error is always a segfault on unknown instrunction.

-Josh
You could easily compile such a build yourself. All you need is an SVN client and a recent GCC version. GCC 4.6 or newer should be fine.

Code: Select all

svn co https://svn.filezilla-project.org/svn/chess/ octochess
cd octochess
Open Makefile in your favorite text editor and replace corei7 with your CPU architecture, see GCC documentation for a list of supported architectures.

Last but not least:

Code: Select all

make
nanos gigantium humeris insidentes
Elorejano
Posts: 101
Joined: Sat Mar 20, 2010 3:31 am

Re: Octochess r4741 released

Post by Elorejano »

Sorry, Tim:
Are there Jim´s compiles of the latest version?
Or win 32 bits compiles..
Thanks for your engine