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Subject: Re: Deep Blue versus Deep Thought - a missing position

Author: Uri Blass

Date: 08:11:29 08/31/01

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On August 31, 2001 at 10:56:24, John Merlino wrote:

>On August 30, 2001 at 09:36:26, Uri Blass wrote:
>
>>On August 30, 2001 at 07:45:34, Kim Roper Jensen wrote:
>>
>>>Hi
>>>
>>>If my memory(heavily fragmented) serves me well there was some games, where the
>>>DB played against DT, and in one of them DB "announced" mate in 18, a very
>>>complicated position where the mate consisted of quiet moves and some
>>>counterchecks.
>>>
>>>Are there anyone that have this position ?? Or is my memory corrupted  ??? :)
>>>
>>>With regards
>>
>>I know of no public games between DB and DT.
>>
>>I had a mate in 18 against abir har aven
>>when no commercial program can see the mate and I found the mate only
>>by going forward and backward with chessmaster
>>that is the best in finding mates.
>>
>>chessmaster6000(ss=10)could not find the mate in a few hours
>>on PIII850 and it means that probably no program can do it
>>in a reasonable time.
>>
>>I posted the position some weeks ago and yace also could see the mate
>>after going forward and backward but not from the root position.
>>
>>Uri
>
>This is very strange, because Chessmaster 8000 (default personality) on my
>PIII-733, has no problem and finds the mate in 18 in 2 seconds (although, for
>some reason, it only reports the first 16 of the moves....hmmm.... I think I
>remember Johan saying something about a PV having a maximum number of plies and
>now I believe it is 31):


We talk about different positions
I talk about the position that I posted some weeks ago.

Uri



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