Game 4 Rybka vs Zappa

[PauloSoare]

Yup its good for computer chess, I thought that Rybka will win with a lopsided score. I thought we can just look at CEGT or SSDF to see who is stronger but matches like these gives more excitement especially if they are using hardware that ordinary people dont have.

This will be a better match than if its Rybka vs Junior

I do not know about the current Junior strong, therefore it´s difficult
to evaluate a match against Rybka.
Junior is always well prepared to play tournaments, it´s one of the
reasons to be the current world champion.

What excites me is to see that Rybka and Zappa are playing a difficult match,
therefore I did not wait that Rybka would have difficulties.
Game 4 deserves to enter for the history of computer chess for the complexity.
Rybka had possibilities to win, after to drawn, and in the end she lost.
It is difficult to believe that this happened with the best program in
all lists of ranking.

In the last days I am trying Zappamexico, that I buyed in Shredder site on Playchess,
but I think that Rybka is better, altougth I think that Zappa is the better program
that I tryed against Rybka on Playchess.

Paulo Soares

[Tony Thomas]

Yup its good for computer chess, I thought that Rybka will win with a lopsided score. I thought we can just look at CEGT or SSDF to see who is stronger but matches like these gives more excitement especially if they are using hardware that ordinary people dont have.

This will be a better match than if its Rybka vs Junior

I do not know about the current Junior strong, therefore it´s difficult
to evaluate a match against Rybka.
Junior is always well prepared to play tournaments, it´s one of the
reasons to be the current world champion.

Rybka is the current Champion, and Zap is the vice world champion. So the match between them is better than a match between Rybka and an engine that won a championship solely based on luck, the version that was released right after the tournament didnt even manage to get the top 5 spot.

[Tony Thomas]

Looks like Erdo probably did a wonderful job with the books. It is possible that Anthony used some tricks to get perfect scaling on 8 cores. After all with double the speed (considering that rybka doesnt have perfect scaling) Zappa is only a few elo points weaker than Rybka.






Everything I said above should be considered as the blabberings of an insane Zappa fan , person . So the score is Zappa 2.5- Rybka 1.5. Wow, not an expected result. I am about to go order my Zappa.

Nothing wrong with ordering Zappa Mexico. I already have it. But if you think the version you are buying is the same one being used in this match, have some vaseline when you bend over

I do not know if it is the same but zappa Mexico could also beat rybka2.3.2a in the CCRL

Of course Zappa used 4 processors when rybka used only 1 processor but usually one processor of rybka2.3.2a 64 bits beat 4 processors of other programs.


http://www.computerchess.org.uk/ccrl/40 ... 4-bit_4CPU

Nothing surprising here, Zappa was the first engine that managed to come ahead of Rybka using 4 cores. Do you remember that before Rybka was SMP capable Zappa lead the CCRL list for a short period of time? Then Anthony said he was going away and came back with Zanzibar, which claimed a clear 2nd spot for multi-cpu engines, and the current version is even more improved.

[PauloSoare]

Rybka is the current Champion, and Zap is the vice world champion. So the match between them is better than a match between Rybka and an engine that won a championship solely based on luck, the version that was released right after the tournament didnt even manage to get the top 5 spot.

You are rigth, Rybka is the current Champion.
About Junior, we can just speculate, because we don´t have informations
about it´s developement.
I am waiting for new versions of Shredder, Hiarcs, Fritz, Junior, Rybka and
Loop to see what hapens. Naum and Zappa have recent versions.

Paulo Soares