A community project CCMT

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Dann Corbit
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Re: A community project CCMT

Post by Dann Corbit » Sat Sep 26, 2020 4:02 am

MOBMAT wrote:
Fri Sep 25, 2020 7:04 pm
I didn't notice if this...

...one was solved, but I had it as a M43 and Crystal 080420 found M29!
I guess that half of the positions with a mate deeper than 30 will actually have a shorter solution if you let the engines think long enough.
Probably 1% will even have a different key move.
When one of those turn up, you have to add an alterante solution to the test or replace the problem.
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But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.

Dann Corbit
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Re: A community project CCMT

Post by Dann Corbit » Sat Sep 26, 2020 4:05 am

The Arves site (where the problem was taken from) just had the position as won, but not driven clear to mate.



http://www.arves.org/arves/index.php/en ... -1907-1944
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.

MOBMAT
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Location: USA

Re: A community project CCMT

Post by MOBMAT » Sun Sep 27, 2020 2:23 pm

Dann Corbit wrote:
Sat Sep 26, 2020 4:02 am
MOBMAT wrote:
Fri Sep 25, 2020 7:04 pm
I didn't notice if this...

...one was solved, but I had it as a M43 and Crystal 080420 found M29!
I guess that half of the positions with a mate deeper than 30 will actually have a shorter solution if you let the engines think long enough.
Probably 1% will even have a different key move.
When one of those turn up, you have to add an alterante solution to the test or replace the problem.
So does that mean you are or are not interested in faster mate solutions? or only if there is a shorter and different key move?
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Dann Corbit
Posts: 11978
Joined: Wed Mar 08, 2006 7:57 pm
Location: Redmond, WA USA
Contact:

Re: A community project CCMT

Post by Dann Corbit » Sun Sep 27, 2020 5:35 pm

MOBMAT wrote:
Sun Sep 27, 2020 2:23 pm
Dann Corbit wrote:
Sat Sep 26, 2020 4:02 am
MOBMAT wrote:
Fri Sep 25, 2020 7:04 pm
I didn't notice if this...

...one was solved, but I had it as a M43 and Crystal 080420 found M29!
I guess that half of the positions with a mate deeper than 30 will actually have a shorter solution if you let the engines think long enough.
Probably 1% will even have a different key move.
When one of those turn up, you have to add an alterante solution to the test or replace the problem.
So does that mean you are or are not interested in faster mate solutions? or only if there is a shorter and different key move?
I am always interested in confirmations, improvments, alternates or whatever else you can provide,
My comment was intended to describe that my data set is not as solid as I would like it to be
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.

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