toughest mate in one puzzle
toughest mate in one puzzle
Does anyone know a trickier mate in one than this?
https://www.chess.com/blog/Giorno/crazy ... -in-1-nr17
https://www.chess.com/blog/Giorno/crazy ... -in-1-nr17
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Re: toughest mate in one puzzle
Nice, it was the last move I considered.
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Re: toughest mate in one puzzle
(Referring to the first puzzle in this thread.)
There are quite a few red herrings! The total number of checks that seem possible (i.e. including the ones by pieces that you only realise later are pinned) is 19 if I am counting right. Strangely, none of them seem to be checkmate...
Oh, I see it now. Managed to see all the checks except the one that delivers mate.
Re: the second puzzle (above), is that not just mate in two? (Admittedly I have now found three different ways to mate in two.)
There are quite a few red herrings! The total number of checks that seem possible (i.e. including the ones by pieces that you only realise later are pinned) is 19 if I am counting right. Strangely, none of them seem to be checkmate...
Oh, I see it now. Managed to see all the checks except the one that delivers mate.
Re: the second puzzle (above), is that not just mate in two? (Admittedly I have now found three different ways to mate in two.)
Re: toughest mate in one puzzle
no its mate in oneChristopher Kreuzer wrote:(Referring to the first puzzle in this thread.)
There are quite a few red herrings! The total number of checks that seem possible (i.e. including the ones by pieces that you only realise later are pinned) is 19 if I am counting right. Strangely, none of them seem to be checkmate...
Oh, I see it now. Managed to see all the checks except the one that delivers mate.
Re: the second puzzle (above), is that not just mate in two? (Admittedly I have now found three different ways to mate in two.)
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Re: toughest mate in one puzzle
Don't get it.Joshua Gibbs wrote: is another favourite, white to play
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Re: toughest mate in one puzzle
Oh, doh! Yeah, it could be mate in one, but it depends what Black's last move was. (Sorry, that probably gives it away! The puzzle is presumably presented as "mate in one - say what Black's last move was".)
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Re: toughest mate in one puzzle
Problems of this type (White has mate in 1 if Black's move was "something") have a requirement that Black's last move could only have been "something", so the solver's task is to prove that Black's last move was "something". For this problem, there is an obvious last Black move that would give White mate in 1, but it doesn't appear to be the only possible move Black could have just made.Christopher Kreuzer wrote:Oh, doh! Yeah, it could be mate in one, but it depends what Black's last move was.
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Re: toughest mate in one puzzle
Yeah, retrograde chess problems. I have read a few books of those.Ian Thompson wrote:Problems of this type (White has mate in 1 if Black's move was "something") have a requirement that Black's last move could only have been "something", so the solver's task is to prove that Black's last move was "something". For this problem, there is an obvious last Black move that would give White mate in 1, but it doesn't appear to be the only possible move Black could have just made.Christopher Kreuzer wrote:Oh, doh! Yeah, it could be mate in one, but it depends what Black's last move was.
That was kind of my point, that the problem can't be presented as "prove what Black's last move was", so it has to be presented another way.
Re: toughest mate in one puzzle
NickFaulks wrote:Don't get it.Joshua Gibbs wrote: is another favourite, white to play
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Re: toughest mate in one puzzle
I think the second problem would have had to be worded: What was Black's last move for White to have mate in 1?
I devised a problem for the ECF Cerificate of Merit. 'What is White's WORST move. All but one option was chackmate and the solution was stalemate.
I devised a problem for the ECF Cerificate of Merit. 'What is White's WORST move. All but one option was chackmate and the solution was stalemate.
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Re: toughest mate in one puzzle
I think the first puzzle was the easiest mate in one in the world - half a second. 1st move I considered.
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Re: toughest mate in one puzzle
I agree with Stewart & Ian & Chris on second puzzle as very inaccurately worded. If last move was e6-e5 there is no mate in one.
Re: toughest mate in one puzzle
post a harder one thenNick Grey wrote:I think the first puzzle was the easiest mate in one in the world - half a second. 1st move I considered.
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Re: toughest mate in one puzzle
First problem, admittedly tricky in improbable position, 30-40 seconds to solve. Second, 5-10 seconds.