mate in 3?

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Dann Corbit
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mate in 3?

Post by Dann Corbit » Tue Apr 30, 2019 10:56 pm

Yacpdb says this position is mate in 3 with best move Qb5.
Kn5N/p1p1R3/r3b3/3p1k1p/1N1PrP2/3Qp1nP/2B5/6q1 w - - bm Qb5;

Chest does not find it.
Is it a mate in 3?

Yacpdb reference:
http://www.yacpdb.org/#search/S241TnAxc ... MS8xLzA=/1
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acase
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Full name: Andrew R Case

Re: mate in 3?

Post by acase » Wed May 01, 2019 12:26 am

Hi Dann,

I don't think there is a mate in 3 that chest cannot solve, so I don't think there is a mate in 3, perhaps they have the position wrong on the website, or the position is cooked.

Spill_The_Tea
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Full name: Jase de Lace

Re: mate in 3?

Post by Spill_The_Tea » Wed May 01, 2019 1:13 am

The fen you posted is wrong. You are missing the bishop on g5. It should instead be:

Kn5N/p1p1R3/r3b3/3p1kBp/1N1PrP2/3Qp1nP/2B5/6q1 w - -

For some reason, there are two boards on the website you posted, and one has the bishop on g5, and the other doesn't. That is likely the problem.

Dann Corbit
Posts: 11511
Joined: Wed Mar 08, 2006 7:57 pm
Location: Redmond, WA USA
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Re: mate in 3?

Post by Dann Corbit » Wed May 01, 2019 5:13 am

Thanks, that makes sense
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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