mate in 3?

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Dann Corbit
Posts: 12541
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

mate in 3?

Post by Dann Corbit »

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
Posts: 983
Joined: Wed Mar 15, 2006 1:14 am
Location: Columbus, Ohio USA
Full name: Andrew R Case

Re: mate in 3?

Post by acase »

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
Posts: 24
Joined: Mon Dec 17, 2018 3:33 am
Full name: Jase de Lace

Re: mate in 3?

Post by Spill_The_Tea »

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: 12541
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Re: mate in 3?

Post by Dann Corbit »

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.