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Subject: Re: Ed, proposal for Rebels analyis

Author: Harald Faber

Date: 00:09:43 08/26/98

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On August 25, 1998 at 04:51:07, Ed Schröder wrote:

>>1) when letting Rebel analyze a game (for example) it is unnecessairy wasting
>>time if the played move is the same as Rebel would play. I don't see the sense
>>in analyzing only this move again, it only wastes time
>
>Rebel analyze a game and its moves in the following way:
>Stage one: Analyze what Rebel would have played (on the given time-level)
>Stage two: Analyze the actual move played (till the ply-depth of stage-one)
>
>Suggestion: after stage-one if "Rebel_move = move played in game"
>skip stage-two and copy analysis results from stage-one into stage-two.
>
>Is that what you want?

Yes.

>In this respect remember that stage-two is much faster than stage-one.
>In stage-one all moves have to be searched. In stage-two only the "move
>played in the game" has to be searched till the given depth from stage-one.
>Stage-two is simply done by an internal "analysis include". As you know
>such a search is usually 3-5 times faster. So the real time gain is not much.
>But I assume that is not a good answer :)

I haven't seen a much different eval yet and I can't remember getting Rebel at
least one ply deeper when only analyzing the played move.

>>2) you are right with your statement that Rebel starts to analyze a game when
>>Rebel comes out of book. But at least my version Rebel analyzing a database
>>Rebel starts thinking at move #1. This is of course not senseful, or am I
>>doing something wrong?
>
>You mix up "Analyze Game(s)" and "Analyze Database".
>
>Analyze Game(s) : Analyze full games (all moves)

Starting where Rebel leaves the book, right.

>Analyze Database : Analyze positions (only the *first* move is analyzed)
>Also the output between "Analyze Game" and "Analyze Database" is quite
>different.
>- Ed -

That is indeed confusing. It should be possible to let Rebel analyze all the
games of a database like he does with the loaded game in "analyze game".



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