Best Chess Engine?

I currently have Deep Rybka 3. Im wondering if there are any better chess engines out there, best overall playing ability, basically the best overall chess engine for sale?

Thanks

-Sean

The best ones are free :)

http://www.chess.com/forum/view/general/the-strongest-engine-on-the-planet-made-by-a-chesscom-member

The best engine at the moment is free and written by a Chess.com member, Houdini 1.5:

http://www.chess.com/download/view/houdini-15

 Thank you. I downloaded it, but im not sure what to do next, apparently i have to put the engine into my own program (deep rybka) how do i do that?

Don't put one engine (Houdini) inside another engine (Rybka).

You put Houdini in the "Engines" folder of a Graphical User Interface (GUI).

Here's a good, free one:

http://www.playwitharena.com/?Download:Arena_3.0

Doesn't Deep Rybka come with a GUI? Aquarium, or something?

Yes it does. Thanks for the help guys :)

Are you all sorted now?

p.s. Don't forget to associate Houdini with a good opening book and tablebases, for maximum effect.

 yes thank you very much :)

I'll download it for sure ! 

This is the transcript to a game I participated in between Deep Rybka 4 and a new engine that shall remain nameless (not Houdini 1.5). The new engine still needs some work; it missed a mate in 5 calculated by DR4's inbuilt kibitzer several times, but it's still a mighty achievement to beat DR4 so easily. Soon I shall be trying it against Houdini 1.5. Will keep you all up to date on the results :)

DR4 vs XXX 0-1

I just simply will not believe it. haha JK

Each move gets a rating which can be +ive or -ive.

What does it mean when the analysis tips into the negative?

If you want to give your engine a good workout, I suggest join this group:

http://www.chess.com/groups/home/advanced-chess

and ask for a few games there.

Thank you rooperi, I will surely join that group. As an update on my last post, I have since beaten Houdini 1.5a with my engine, both running on identical hardware

That means that the engine's kibitzer analyses the position as favourable to back. In a nutshell, positive = white is better, negative = black is better.

Except for a few programs which still give the evaluation for the next side to move, so it changes after every half move. But thankfully this seems on its way out.

How do these engines compare to the computers programs like fritz 12 or Chessmaster programs? They have analysis programs built in them as well how do these compare?

Fritz and chessmaster are stronger than almost any human, but they have no chance against the top engines.