Glaurung 0.1.4 (off-topic)

[Tord Romstad]

Glaurung 0.1.4 is now ready for download. The main difference compared to the previous version is that several search and eval bugs have been fixed, some of the quite serious. As a result, the new version is tactically stronger, and has a better branching factor at high search depths.

My initial test results for the new version are quite promising. I've played three Noomen matches against Glaurung 0.1.3, Fruit 1.5 and Gothmog 1.0 beta 10. The results:

Glaurung 0.1.4-Glaurung 0.1.3: 57-43
Glaurung 0.1.4-Fruit 1.5: 55.5-44.5
Glaurung 0.1.4-Gothmog 1.0 beta 10: 47.5-52.5

The first match was played on an iMac G5 1.8 GHz, while the others were played on a PIV 2.4 GHz. All matches was played at a time control of 4 2.

Unfortunately, the games are not as pretty as the results. Glaurung plays the most passive, anti-positional and ugly chess you have ever seen, but is somehow still able to win a lot of games.

Glaurung is, of course, not a Winboard engine. That's why I put "off-topic" in the subject line. If announcements for non-Winboard engines are not wanted here, I apologize for posting this message, and will use other forums when announcing future versions.

Tord

[Volker Pittlik]

...If announcements for non-Winboard engines are not wanted here, I apologize for posting this message, and will use other forums when announcing future versions.

Tord

The description of this forum says:

This forum is also the place to discuss other chess GUIs, databases, tools, chess in general and other topics.

Shouldn't be a problem as long as you:

Keep it nice

I doubt you are going to violate the last point.

Regards

Volker

[Pallav Nawani]

I cannot download the Linux version of Glaurung. I get access denied. Windows version downloads OK.

Pallav

[Tord Romstad]

Shouldn't be a problem as long as you:

Keep it nice

I doubt you are going to violate the last point.

Thanks, Volker!

I'll do my best.

Tord

[Tord Romstad]

I cannot download the Linux version of Glaurung. I get access denied. Windows version downloads OK.

Thanks, Pallav!

My mistake. I forgot to set read permission for the Linux and Mac OS X files. It should work now.

I have now also added a 64-bit Macintosh executable. This executable is about 10% faster than the 32-bit binary on my iMac G5. Quite surprising, because Glaurung does not use bitboards. The only 64-bit integers are the hash keys and the node counter. Of course, the 64-bit executable will only work on G5 Macs.

Tord