Chess.com ai loses to Rybka Arena Why

Why does the chess.com ai at the top level lose to a freely downloadable programme??? Hands down...

You got me.  I had it run analysis on a game I played, and I made a move I knew was tactically a good one.  It told me it was a blunder!  I put it on Houdini and within a few seconds it told me I was easily winning.  There computer that analyzes is not very strong apparently.  Also engine matches of Rybka vs Houdini don't do so hot for Rybka.  Houdini is fast and strong.  Those are the only two I know about though.  Dunno how it holds up against shredder and some of the others.

Which brings up a another question:  What is the chess.com engine?  Homebrewed?  Commercial?

Amy

I dunno, but it could use an upgrade...especially since Houdini is free online right now, it wouldn't cost money for the engine itself, only possibly the implementation of it to the programming.  That sounds unlikely though, because if someone programmed something without the ability to change or upgrade engines...that would just be poor on the programmers part.

I think chess.com wants computer 4 impossible to not truly be impossible because it would be no fun to play it.

Now that certainly makes sense, but why would they be forced to use that same computer engine to do the analyzation.  With 3300 elo engines out there that can hit depths in the 20's in under a minute, why analyze it with a 2500 level one that is not even close to that.

Thanks for all your comments they are interesting.

I have recently bought rybka 4 on amazon and am just waiting for it to arrive, it cost me £32.

I will try and download houdini and pitch it up against rybka, I have heard in a few places that houdini is stronger than rybka but I am not sure if people meant the free to download program is stronger than the original rybka 4???

Anyway if it is I will be a bit gutted and would have waisted some cash but to a player at my rating these things don't matter all that much.

The user friendly interface is just as important for me

DimebagDereck thanks for letting me know about houdini ive installed it with no troubles

Chess.com can't just take an off the shelf engine and plug it into their commercial website without paying a large license fee to the authors.  For instance, the license for open source software like Crafty or Stockfish specifically forbids this.

What software are they running now?  I suspect it is an intern with Turing's paper chess machine and a Commodore 64.

Haha I can't believe people still know about this thing-- I think it had a depth-search of 1 move. Turing played as the computer, doing the calculations for it. It took him half an hour per move, and he lost to a colleague.

Yes.  It was very close, but as I recall, even the free version of Houdini, version 1.5a, was generally considered stronger than the last, commercial version of Rybka, Rybka 4.1.

http://www.husvankempen.de/nunn/40_40%20Rating%20List/40_40%20All%20Versions/rangliste.html

Of course, different rating lists rated the engines differently, so it really depends upon who you want to believe.

So it looks like what we have here is a cheap program from a commodore 64 , maybe I shouldn't take the computer analysis all that seriously lol.

Innaccuracy??? Are you serious,,, you cant be serious lol

I like how it presents its analyzation (Not just a score but also lines).  If it were stronger, so It could provide you with better lines, that would be more helpful.  As it is since you have Houdini now, it is probably better to analyze the games on your own.  You could annotate the games with your findings and save it so it isn't just dust in the wind.

can you please post the link to download the free version of Houdini, i wish this is not in zip format

What is wrong with it being zipped?  Either search more for one that is not in zip format or download a free unzipping program.

yeah i did it, got 1.5 is this the up-to-date free version? guess this is the strongest free engine till today?

Yes, i believe Houdini Pro 2.0c is the most advanced one.  If 1.5 is even close to the 2.0c Pro version then you have an amazing engine to analyze your games.  It takes a little time, but it is certainly worth it!  You will learn all kinds of things that you miss during the games.

how can i take maximum benifit from an engine? i mean can i use it as my coach?

The engines have so many features now, it is hard to tell you what all you can get from it.  I wouldn't exactly call it a coach, but it can be used to help you with opening prep and game analyzation.  You can download opening books and merge databases into your engine and opening books.  You can have it do really deep thinks on certain critical positions, and then you can save your data to a hash file for later use or even deeper study.  You can weight the opening book to favor certain lines, then you can select the difficulty of the engine and almost force it into certain lines you enjoy or are trying to learn.  And I am sure this just barely scratches the surface of what all can be done with it.

wow that was really brilliant, thanks for you time to make me clear of my doubt, you are among the few , i appreciate your work