14222 Players currently online!
Man vs. Machine - good luck!
Turn-based games at any time!
Vote for the best move to win!
Do you have what it takes?
Sharpen your tactical vision!
Get advice and game insights!
Learn from top players & pros!
View millions of master games!
Your virtual chess coach!
Perfect your opening moves!
Test your skills vs. computer!
Find the right private coach!
Can you solve it each day?
Bring it all together!
Beginners, start here!
Make friends & play team games!
News from the world of chess!
Search all Chess.com members!
Find local clubs & events!
Who's the best of your friends?
Read what members are saying!
Created on February 27, 2011 |
5753 Votes | 68 Comments
It's not illegitimate or illegal for the Rybka programmers to use Fruit or Crafty in the writing of their program - that is what open source is all about. But it is in violation of the GPL (under which Fruit is released) for them to do so and then turn around and redistribute the software as closed source, proprietary and for-profit software.
Under the GPL, they have to issue their modified program at no charge ( a distribution fee is allowed though) and make available the modified source code also under the terms of the GPL.
Houdini outstrips Rybka, and Fritz, though good enough for anyobdy's purposes (I have it) , really isn't that strong. It loses consistently to programs like Stockfish and Naum.
Also, @herbanmusic Even if that article is true, I don't believe it's not illegal or unligitimate since it says specifically in the article that Fruit 2.1 is public open source code
Its turning Out that Vas( Rybka's authour) Is indeed a serial cloner...
Its coming to light that he had previously COPIED A<D PASTED literally, parts of CRAFTY's code ( Versions between 16.0 and 19.0) into the initial versions of rybka...
How hilarious is that ?!?
I love when justice is done !!
as everyone knows Houdini is the strongest, many have voted Rybka and Fritz because they are already famous.
Its a close call but the TRS-80 comes first place ! I surrender !
Fritz outscoring Houdini.. yeah right
"There is an alternate version around that is supposed to return the real value that the engine is evaluating, as it seems Houdart was tryinng to use ways of hiding its evaluation a bit ( to avoid being "engineered reversed" kinda thing...Fair play to him if that was really the case), though only difference is in the evaluation value returned to the display( not his real evaluation, mind that!), and not in its play. so, its the same engine, still."
Interesting. What is this version of Houdini called and where can I find it?
Mind one thing: though Houdini is wiining all engines around at this moment, Houdart compromised quite a bit positionally (though most top engines have indeed improved a lot with the release of Fuit and subsequent engines disputes).
It was probably the first time that a massive number of programmers joined forces against a commercial machine...and won !
In my work doing an opening book specifically for black, noticed that in several positions where strategy is asked for, engines like Shredder 12, Hiarcs 13.2 ,Fritz 12 and even Junior are much better than Houdini, that returns really strange moves, even scoring them highly when he cant get more than a draw in the end ( Opening book analysis is mainly aimed for engines, though i ended up coming up with a lot of new ideas and perceptions of the positions that arise mainly from the Bronstein Larsen variation of the Caro Kan...i.e. : a lot of nice novelties eh eh ).
So, i take the chance to confirm that the ECO B16's Bronstein Larsen variation / Caro Kan is alive and well, more than ever.100% sound defense as black.
But of course Houdini is much faster than most engines around( only Stockfish gets close to it, in that sense), and now even has Gaviota tablebases direct support.
There is an alternate version around that is supposed to return the real value that the engine is evaluating, as it seems Houdart was tryinng to use ways of hiding its evaluation a bit ( to avoid being "engineered reversed" kinda thing...Fair play to him if that was really the case), though only difference is in the evaluation value returned to the display( not his real evaluation, mind that!), and not in its play. so, its the same engine, still.
at the moment houdini is the strongest.
Rybka voters probably doesnt know that it was already beaten by Houdini.
Wiki : http://en.wikipedia.org/wiki/Chess_engine
Houdini vs Rybka : http://blog.chess.com/qixel/rybka-amp-houdini-go-head-to-head
stockfish 2.0.1 is the strongest engine
@ dajacca... Making excuses allready, in the eventuality of your trs losing? cant he take care of himself?!?!? lol eheh Niceone.
I was actually re-reading T. Harding's book on computer chess(still finishing it) and the TRS chess programs...Never used one though, i think (unless i dont remember) Spectrum was the THING , when i was just a kid, also where i first programmed something ( a diary actually with password and all... though thge tape recording all the time was an hassle h eh eh )
@ dajacca...Not so sure about the TRS-80...My ZX spectrum/timex 2048 will beat your trs-80 eh eh eh
@ yimin123 ... you use elostat for that? consider the fact that the starting rating influences it... for compuert engones ratings one should use an higher starting rating as most are stronger than humans anyway...so take that in consideration... lol
I plung in Houdini engine inside arena and it shows only have elo rating of 2600
uhhh, there have been tons and tons of games between the top chess engines. Houdini is the strongest. Period.
P.S. This survey is pretty dumb b/c anyone who looks at a few rating list knows that Houdini is strongest. It is not a matter of opinion.
@ mwyoung : doesnt look like...It is a "clone" ( though clone is the most used term, it is hard to be concise in this specific case, as Vas used a lot of Fruits code, but in a much more sophisticated way...which makes rybka a sphisticated "clone" ).
The letter i posted here is signed by everyone whos anyone in the computer chess world.
Just proving that lies dont last long !
The only reason why fritz has any votes is because it is famous, in fact there are many extremely strong engines not listed such as, Komodo, Protector, and Hannibal, all of which have an estimated ELO above 2900.
Looks like Rybka is a clone. This could be the end of Rybka playing in any computer chess tournaments, Rybka could now be Banned if this is found to be true. No more Computer Chess World Championships.
And Houdini is listed on most computer chess rating lists. IPON, CCRL, CEGT...
3 days ago
9 days ago
2 weeks ago
4 weeks ago
Why Join | Chess Topics |
Help & Support |
© 2015 Chess.com
• Chess - English
We are working hard to make Chess.com available in over 70 languages. Check back over the year as we develop the technology to add more, and we will try our best to notify you when your language is ready for translating!