Rhetoric 1.4.1 available

[asanjuan]

Hello,
I have an improved version of Rhetoric. The tunning algorithm has been changed and corrected, and now the evaluation is quite different.

In fact, the similarity test between the different versions of rhetoric shows something very curious:

Code: Select all

sim version 3
------ Rhetoric 1.4.1 (time: 50 ms  scale: 1.0) ------
 95.33  Rhetoric 1.4.1 (bis) (time: 50 ms  scale: 1.0)
 53.87  Rhetoric 1.2 x64 (time: 50 ms  scale: 1.0)
 47.27  Rhetoric 1.4 x64 (time: 50 ms  scale: 1.0)
 44.63  Fruit 2.1 (time: 50 ms  scale: 1.0)
 43.41  RobboLito 0.21Q x64 (time: 50 ms  scale: 1.0)

It looks as if it were a completely different program. I ran the similarity test twice for the new version for verification.

Changes:
- Tunning/learning changed. Using self play with time odds.
- Added UCI_LimitStrength and UCI_Elo options. Very simple, adding a delay in eval.
- Added an option to change the material weigth. You can change the style to make it more positional or more materialistic. Changing the material value from 50% to 200%. The very first game that I played using 50% of the material, was a crushing Tal-style game. Really entertaining, believe me.
- Added an evaluation cache.

http://www.chessrhetoric.com

Well, I would like to see a lot of downloads.
Click on "Descarga ya!"

Regards.
Alberto.

[asanjuan]

Hi Alberto,

It looks very interesting, thanks for the update. I am certainly going to be one of the downloaders. When I will test it is another thing. I have just finished testing v1.4 and there are so many engines on schedule...

Thanks Gabor.
There are so many engines been updated out there that it is impossible test them whenever we want.
The improvement is somehow, modest. Around 40 elo in my own tests, but better in general against foreign opponents. Could be 30 elo, or coud be more, don't know for sure. It is far stronger than version 1.2, and stronger than 1.4, but depending on the time control or the opening book that it's been used by the testers, the result may change.

I focused mainly in user experience and the playing style.

[fern]

Gracias Alberto.
Estoy en este momento jugando una partida contra R. Ya te contaré qué pasó....

Fern

[MagnersCarlsbergsen]

Great update. Love the option to change material value. Tested 50% and you're right, it made some real Tal-like sacrifices.

It's refreshing that this engine isn't made purely for strength. I have Stockfish, Komodo and Houdini for that, but they play like cyborgs compared to Rhetoric.

Thanks!

[asanjuan]

Gracias Alberto.
Estoy en este momento jugando una partida contra R. Ya te contaré qué pasó....

Fern

Espero que esta vez haya más sangre...
Suerte, ¡y al toro!

[asanjuan]

Great update. Love the option to change material value. Tested 50% and you're right, it made some real Tal-like sacrifices.

It's refreshing that this engine isn't made purely for strength. I have Stockfish, Komodo and Houdini for that, but they play like cyborgs compared to Rhetoric.

Thanks!

You're wellcome!

[fern]

Juan, tu engine me descuartizo en un dos por tres....jugue un poco a la rapida para tomarle la mano y el monstruo me sacó los dos ojos. Ahora jugare mas pensadito....ahi veremos.....

grrrrrrrç

Fern

[Charly]

Hi,

The updated version, Rhetoric 1.4.1 will play in my Leagues, in the "League Tal" in few days.

ACCC (Arnaud's Computer Chess Corner)
http://aloheac.perso.neuf.fr/

Arnaud Loheac

[Graham Banks]

Thanks Alberto.

[Dayffd]

Thank you. It may be a while beforeI enter this version in a tournament, but it will happen, maybe sooner rather than later.