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Up Topic Rybka Support & Discussion / Rybka Discussion / IDeA question...sorry if this has been answered already
- - By shuvro08 (*) Date 2008-08-10 01:48
With all the new analysis features that are apparently present in the new Rybka, I am a little confused regarding which GUI supports which ones. I guess the most important is IDeA for me. Are both of these supported by Aquarium AND the CB (Fritz 11) interface?

P.S. I googled reviews of Fritz 11 and CB 11 and didn't see any articles talking about IDeA. I believe Fritz 11 has shared this another term for IDeA.

It would be great if you guys can straighten this out for me :)
Parent - - By likesforests (**) Date 2008-08-10 02:11 Edited 2008-08-10 02:13
Chessbase describes shared analysis as:

"Another interesting function is the shared analysis. If you use this function a number of things happen. First of all the currently working Rybka locks itself onto the current position, then releases half of the processor or processors that it is using. Then a second Rybka engine is started, using the free processor capacity. Both engines run in analysis mode. If you are playing through a game or analysing a position the B-engine will follow the moves on the board, while the base engine continues to work on the original position.

Now comes the most important part: both engines use the same hash tables. Engine B is entering values in the hash tables that the base engine will encounter and use, allowing it to profit from deep interactive analysis performed by the B-engine together with its human operator. What you are doing is to feed interesting ideas to the base engine, which uses them in its own full-width search."

Aquarium's "IDeA" and Fritz's "Shared Analysis" sound similar in some ways but also quite different. Both features let the human guide the engine's analysis. But IDeA has some distinct differences. For example, it creates a human-readable tree that lets you see all of the variations it's considered. Seeing the tree helps you understand the variations better, and tells you where you might want to guide the engine. Also, the 'iterative process' by which it moves down the tree enables it to see positional moves that an infinite analysis might miss (albeit at the cost of maybe missing an 18-ply tactic). You guide all the Rybka processes rather than just one and mark variations red or green to tell them to ignore them or really focus on them. At least, this is my feel for it after a few days of usage.  :)
Parent - - By likesforests (**) Date 2008-08-10 02:18
One other difference: In IDeA when a human adds a position to be analyzed, it's added to the queue and will be analyzed in 5-10 seconds. With Shared Analysis it sounds like the human idea is analyzed immediately. I imagine there are pros/cons to both approaches: the first would utilize your processor cycles more efficiently while the second would feel more responsive.
Parent - By shuvro08 (*) Date 2008-08-10 02:37
Thanks :)
Parent - - By Zruty (*****) Date 2008-08-10 03:36
While there is a possibility that Aquarium willfeature shared analysis later, there's almost no chance CB will implement IDeA.
In my opinion, IDeA's advantage is that it stores all its analysis in the Aquarium's tree. It can be used later at any time, to review analysis, to extend opening books etc.
Parent - By Arkansaw (***) Date 2008-08-10 04:23
It can be better if the evals can be updated instead of having to make a whole new tree to search at a different depth
Parent - - By Vasik Rajlich (Silver) Date 2008-08-10 07:57
The interfaces are different - made by different developers, with different features and points of emphasis. Comparing them is going to be a non-trivial operation :)

Parent - - By shuvro08 (*) Date 2008-08-10 19:54
I guess I am really trying to figure out which would be the best analysis tool when I want to really go in depth in a certain position but also want the program to evaluate other alternatives. Its like the Deep position analysis from Fritz 6 GUI - wondering if either shared analysis and/or IDeA would cut my time down or provide me with better analysis in this situation...
Parent - By lgbarn (**) Date 2008-08-11 01:54
I am extremely happy with Aquarium for analyzing my games. I have put several positions in IDeA and it really makes preparation easy. Once you get a position in your tree, you can always comeback and start where you left off. Just be prepared to see some of you favorite lines refuted almost automatically.
Up Topic Rybka Support & Discussion / Rybka Discussion / IDeA question...sorry if this has been answered already

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