Dorpsgek Cosmopolitan

[ZirconiumX]

In this version:

- King Safety (somewhat primitive)
- Pawn structure eval based on bitboards - thanks @Mk-Chan!
- Ply - 2 killer moves
- History Heuristic quiet move sorting
- Fixed a major repetition draw bug that resulted in a lot of thrown games.
- Fixed a move parsing bug that prevented it from recognising promotions after "usermove" - thanks @kz04px!
- Fixed a time control bug that caused crashes and time losses on repeating time controls
- Optimised the move generators somewhat.
- Various code cleanups.

Strength? It can beat Jumbo 0.1.5, Vice 1.0 and Faile, and put up a fight to Isa 1.9.51.

The 64-bit compile is 20% faster, so I suggest you use that if you can.

Download here.

[Daniel Anulliero]

Thanks for the release Matthew!
Hope we'll see you this evening at the HGM' tourney
bests
Dany

[ZirconiumX]

Thanks for the release Matthew!
Hope we'll see you this evening at the HGM' tourney
bests
Dany

Indeed you will - I'm already logged in. I'm making some tweaks to it though.

[Sylwy]

Thank you, man ! The 32-bit version is already in tests !

[ZirconiumX]

It seems Arena chokes on the specification compliant thinking output. I'll add in a workaround for it.

Thank you, Ruxy!

[MikeB]

nice tournament today Matthew

here's a link to macOS exe and source

https://www.dropbox.com/s/e2ccao68ezdch ... n.zip?dl=1

[hgm]

It seems Arena chokes on the specification compliant thinking output. I'll add in a workaround for it.

Thank you, Ruxy!

What exactly did it not like?

[ZirconiumX]

It seems Arena chokes on the specification compliant thinking output. I'll add in a workaround for it.

Thank you, Ruxy!

What exactly did it not like?

From the XBoard Spec:

*selective depth Maximium length of any branch in the current search.
*speed Nodes per second in last measured time interval.
* Reserved for future extensions.
*tbhits Number of tablebase probes made in the current search.
pv Freeform text giving current "best" line. You can continue the pv onto another line if you start each continuation line with at least four space characters.

Should it not understand the lines beginning with *, it should interpret them as freeform text, no? But no, it chops that text off completely and ignores the PV.

I'll post new builds shortly, Gabor, but don't let me stop you. I'd like to know which tournament it is, though.

EDIT: Builds are up, suffixed with "-arenafix".

[ZirconiumX]

Feel free to run it, Gabor. Though I suspect you already have.

[hgm]

From the XBoard Spec:

*selective depth Maximium length of any branch in the current search.
*speed Nodes per second in last measured time interval.
* Reserved for future extensions.
*tbhits Number of tablebase probes made in the current search.
pv Freeform text giving current "best" line. You can continue the pv onto another line if you start each continuation line with at least four space characters.

Should it not understand the lines beginning with *, it should interpret them as freeform text, no? But no, it chops that text off completely and ignores the PV.

Indeed, this is why the extended format is still compliant with the old specs. Everything on the line that has no defined meaning is part of the free-form PV field, and should be printed as such. So Arena apparetly is not even compliant with the old specs. I guess it tries to parse the PV, and gets upset when encountering plain numbers.