Glaurung 2-epsilon

[Tord Romstad]

For those brave enough to test an unfinished and possibly unstable new program, Glaurung 2-epsilon ("two minus epsilon") is now available for download from the Glaurung web site. At the moment, only the source code and binaries for Mac OS X are included. Windows and Linux executable will follow soon.

This is a complete rewrite of Glaurung; the name is almost the only thing that remains of the old program. The new program is still far from complete, and lacks important features like parallel search, multi-PV mode, and configurable engine parameters. The style of play is dull, passive and ugly because of lack of chess knowledge. Don't expect to see any attractive attacking games in the style of Glaurung 1.x.

If this doesn't put you off, give it a try. I think the current version is at least as strong as Glaurung 1.2.1 (assuming that both engines use only a single CPU). The missing features and knowledge will be added gradually, beginning with the parallel search.

Have fun!

Tord

[Volker Pittlik]

For those brave enough to test an unfinished and possibly unstable new program, Glaurung 2-epsilon ("two minus epsilon") is now available for download......

Thank you very much Tord! I have downloaded it. It compiles without any problem here on Linux and played well against version 1.2.1 under xboard with polyglot.

I'll do some more tests (normal and FRC) looking for bugs and post the results here.

Thank you very much again

Volker

[Tord Romstad]

Thank you very much Tord! I have downloaded it. It compiles without any problem here on Linux and played well against version 1.2.1 under xboard with polyglot.

Thanks, good to hear!

It looks a bit stronger than 1.2.1 in my tests, but I don't have enough data to be 100% sure yet.

I'll do some more tests (normal and FRC) looking for bugs and post the results here.

Great! FRC probably won't work, though. I haven't played a single FRC test game, and it would surprise me if everything is OK.

Thank you very much again

Thanks to you, too!

Tord

[Tord Romstad]

There turned out to be some portability problems with my first attempt; I have now replaced the Glaurung 2-epsilon package on my home page with an updated version which attempt to fix these problems. All non-Mac users are strongly recommended to download again. See a recent post over on the CCC for details.

The download now also contains a 32-bit Linux executable contributed by Volker Pittlik.

Tord

[Volker Pittlik]

... I have now replaced the Glaurung 2-epsilon package on my home page with an updated version which attempt to fix these problems...

I tested both versions. As already reported by email Glaurung2 seems to be stronger than 1.2.1. Some results:

First version:

Code: Select all

1: Glaurung-g2-epsilon  22.5 / 30
2: Crafty-20.14         21.5 / 60   
3: Glaurung 1.2.1       16.0 / 30


Second version:

Code: Select all

1: Spike 1.2 Turin      31.5 / 60
2: Glaurung-g2-epsilon  15.5 / 30   
3: Glaurung 1.2.1       13.0 / 30

G2 defeated Spike.

Next I'll try some FRC...

Volker