Octochess r4741 released

[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/

[Graham Banks]

Thanks Tim.

[kinderchocolate]

Thanks

[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

[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

[Codesquid]

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

[Elorejano]

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