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Subject: Re: Book vs. Engine

Author: Dann Corbit

Date: 15:36:04 08/26/02

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On August 26, 2002 at 17:24:10, José Carlos wrote:

>On August 26, 2002 at 15:08:43, William H Rogers wrote:
>
>>On August 26, 2002 at 09:50:47, José Carlos wrote:
>>>  If you're only interested in analytical capabilities, a match with same book
>>>won't work, because pondering scheme, time management, asymetrical eval, etc
>>>will make the test worthless. If you only want to test analytical capabilities
>>>you'd better use a big test suite, IMO.
>>>
>>>  José C.
>>
>>Your statement is not correct, because as long as a program is using its books
>>the rest of the program is in an idle state with no pondering ect.
>
>  I'm sorry but I don't understand how this makes my statement incorrect. I'll
>repeat and you point where your statement refutes mine: a) you might want to
>test a whole program, with book, tablebases, pondering, configuration files,
>time management, hash tables, anti-human mode, ... Then you must use the _whole_
>thing. b) you might want to test the analyzing capabilities of the program, so
>you forget about book, tablebases, pondering etc. and just try some positions.
>  What does this have to do with the program being idle or not? If my program
>moves right after a fail high and have no move to ponder, it stays idle until
>the opponent moves. So what?
>
>>It only goes
>>into those modes when it is out of book moves. If it finds a book move then the
>>move is made immediately, not after it has thought about it first.
>>Bill
>
>  Wrong again. My program _thinks_ carefully what to do: choose one of the book
>moves (determining it under some criteria) or searching in the hope to find a
>better move. That is done by the engine!
>  The moral is that there's a lot of thinking and programming time after a book.
>Let alone the learning schemes!
>  This said, I respect people interested only in analyzing capabilities. That's
>another choice. A different than mine, but totally respectable. I only want to
>note that matching programs without book or with the same book does _not_ show
>the analyzing capabilities.

Many programs analyze every book move played, just less deeply than a non-book
move.  Keeps them from making absurd moves.  Typically, it's ten percent of the
normal time slice.




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