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Subject: Re: Interesting comp vs comp position

Author: Matthew White

Date: 13:43:52 07/15/03

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On July 15, 2003 at 16:37:18, Michael P. Nance Sr. wrote:

>On July 15, 2003 at 16:07:44, George Tsavdaris wrote:
>
>>On July 15, 2003 at 15:21:17, Robert Hyatt wrote:
>>
>>>Here is a position reached in a game on ICC between Crafty and an
>>>unnamed opponent:
>>>
>>>[D]8/2k2p2/7p/ppPK4/6P1/P6P/8/8 w 0 1
>>>
>>>This seems like a simple "distant passed pawn" idea where black's king isss
>>>closer to the remaining pawns after the queen-side pawns are all gone.  I'd
>>>hope not many would play c6 and lost instantly, but at least one commercial
>>>engine does.  Goes to show that _anything_ can happen in a comp vs comp
>>>game of chess.  :)
>>>
>>Deep Junior 8 makes ~4 minutes in a PIV 1500MHz to see c6 is losing and
>>it's the first choice, until it sees Ke5 or Ke4. So in time control of
>>120'/40+120'/40, in my computer, it would PROBABLY play the wrong move,
>>but in a fast Dual/Quad it wouldn't.
> So the same Program played on a singal Processor would come up with a totally
>different move than the move It would choose if It was on a multi-processor?
Definitely. I have seen some downright bizarre blunders played on multiprocessor
versions of programs that wouldn't even consider the move under normal
conditions.

Matt



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