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Subject: Re: Junior5's search depth reporting

Author: Dave Gomboc

Date: 09:37:53 12/19/98

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On December 19, 1998 at 12:35:32, Dave Gomboc wrote:

>On December 19, 1998 at 12:16:28, Matthew Herman wrote:
>
>>On December 19, 1998 at 11:32:03, James T. Walker wrote:
>>
>>>On December 19, 1998 at 10:58:38, Matthew Herman wrote:
>>>
>>>>Although amir ban didn't consider this important enough to include in Junior5
>>>>(nothing against him or his program .. its VERY strong), it is useful is certain
>>>>positions, albeit very few, but still important.. for instance the famous
>>>>endgame study w/ saaevedra .. W: Kc7, pc7 B: ka1 Rd4 .. white mates in 8 with
>>>>c8=R!! but junior5 cannot see this because of that limitiation.. obviously
>>>>promotion to a R is the ONLY way to win.. as c8=q is met by Rc4+!! and draws..
>>>>
>>>>Matt Herman
>>>>
>>>>I was wondering maybe if Amir could build a small patch that allows junior to
>>>>see this?
>>>>>>>>>>>>>>>>>>>
>>>Hello Matt,
>>>Did you see my post on December 17 about the game Junior lost to Nimzo99a?
>>>Re:
>>>Junior 5.0 vs Nimzo 99a (Two under promotions) posted by James T. Walker on
>>>December 17, 1998 at 11:35:21:
>>>Jim Walker
>>>>>>>>>>>>>>>>>>>>>
>>
>>Yes I did.. this was basically kind of in response to that.
>>Secondly I AM NOT trying to find faults in junior5 or amir ban's style of
>>programming.
>>
>>I didn't do this to assault or criticize him.. and yes Junior is an EXTREMELY
>>fast searcher.. frequently getting up to "21 ply" although I heard to get the
>>correct approximate of that you have to multiply by 2/3rds .. still 7 moves deep
>>is extremely deep as fritz only gets do about 11 ply or 12 in the same amount of
>>time..
>>
>>Matt
>
>Does a manual that came with the software say 2/3 then?  I had thought it was
>counting half-plies.
>
>Dave Gomboc

I should rephrase: I had thought that whatever it is counting is roughly
equivalent to a half-ply of search.  I am under the impression that it is not
exactly counting half-plies.

But what's a ply here or there anyway? :-)

Dave Gomboc



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