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Date: 10 Apr 2006 09:09:45
From: Jim King
Subject: Question on Shredder
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Hello,
In its Analysis, Shredder evaluates lines with a strange (to me) notation
for example M150+, or M267--
Can anyone tell me what that means, I know it sees a mate, but its unclear
to me what its saying.
Thanx
Jim
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Date: 11 Apr 2006 09:29:37
From: CeeBee
Subject: Re: Question on Shredder
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"Jim King" <[email protected] > wrote in rec.games.chess.computer:
> for example M150+, or M267--
M stands for "Mate in". The numbers indicate that there is a mate "at least
within 150 moves" but I don't know how absolute those figures are.
IIRC the + and - indicate a fail high and a fail low, either indicated that
the engine found an even better situation in its PV than previously thought
or even worse than thought before. In this case the engine indicates that it
either has found a shorter or a longer mate, but isn't sure what that
shorter/longer route exactly is.
--
CeeBee
*** The Cookie Has Spoken ***
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Date: 11 Apr 2006 13:43:26
From: Jim King
Subject: Re: Question on Shredder
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Thank you
"CeeBee" <[email protected] > wrote in message
news:[email protected]...
> "Jim King" <[email protected]> wrote in rec.games.chess.computer:
>
>> for example M150+, or M267--
>
> M stands for "Mate in". The numbers indicate that there is a mate "at
> least
> within 150 moves" but I don't know how absolute those figures are.
>
> IIRC the + and - indicate a fail high and a fail low, either indicated
> that
> the engine found an even better situation in its PV than previously
> thought
> or even worse than thought before. In this case the engine indicates that
> it
> either has found a shorter or a longer mate, but isn't sure what that
> shorter/longer route exactly is.
>
> --
> CeeBee
>
> *** The Cookie Has Spoken ***
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Date: 11 Apr 2006 08:31:49
From: Gian-Carlo Pascutto
Subject: Re: Question on Shredder
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Jim King wrote:
> Hello,
>
> In its Analysis, Shredder evaluates lines with a strange (to me) notation
>
> for example M150+,
Mate in (at least) 150, and a fail-high (score will increase soon, i.e.
we will probably find a shorter mate soon).
> or M267--
"I thought I saw a mate, but dammit, where did it go?"
--
GCP
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Date: 11 Apr 2006 13:43:08
From: Jim King
Subject: Re: Question on Shredder
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Thank you
"Gian-Carlo Pascutto" <[email protected] > wrote in message
news:[email protected]...
> Jim King wrote:
>> Hello,
>>
>> In its Analysis, Shredder evaluates lines with a strange (to me) notation
>>
>> for example M150+,
>
> Mate in (at least) 150, and a fail-high (score will increase soon, i.e.
> we will probably find a shorter mate soon).
>
>> or M267--
>
> "I thought I saw a mate, but dammit, where did it go?"
>
> --
> GCP
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Date: 10 Apr 2006 11:49:47
From:
Subject: Re: Question on Shredder
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I was wondering what that was about too. Someone told me it means the
computer sees the possibility of checkmate but it isn't sure in how
many moves that will occur so it gives the strange numbers you used as
an example. Of course if it is an obvious mating situation then it
gives you the exact moves to checkmate.
Jim King wrote:
> Hello,
>
> In its Analysis, Shredder evaluates lines with a strange (to me) notation
>
> for example M150+, or M267--
>
> Can anyone tell me what that means, I know it sees a mate, but its unclear
> to me what its saying.
> Thanx
>
> Jim
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Date: 10 Apr 2006 20:18:17
From: Jim King
Subject: Re: Question on Shredder
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very strange I cant get info on what those numbers mean
<[email protected] > wrote in message
news:[email protected]...
>I was wondering what that was about too. Someone told me it means the
> computer sees the possibility of checkmate but it isn't sure in how
> many moves that will occur so it gives the strange numbers you used as
> an example. Of course if it is an obvious mating situation then it
> gives you the exact moves to checkmate.
>
>
> Jim King wrote:
>> Hello,
>>
>> In its Analysis, Shredder evaluates lines with a strange (to me) notation
>>
>> for example M150+, or M267--
>>
>> Can anyone tell me what that means, I know it sees a mate, but its
>> unclear
>> to me what its saying.
>> Thanx
>>
>> Jim
>
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