Live data from Hacker News

The Hardest chess problem in the world?

hebdenbridgechessclub.blogspot.com

11–20 of 137 posts

Re: The Hardest chess problem in the world?

#11
From FIDE rules:

> When a player, having the move, plays a pawn to the rank furthest from its starting position, he must exchange that pawn as part of the same move for a new queen, rook, bishop or knight of the same colour on the intended square of arrival.

> promotion: 3.7e. Where a pawn reaches the eighth rank and is replaced by a new queen, rook, bishop or knight of the same colour.

https://www.fide.com/fide/handbook.html?id=171&view=article

Re: The Hardest chess problem in the world?

#12

From FIDE rules: > When a player, having the move, plays a pawn to the rank furthest from its starting position, he must exchange that pawn as part of the same move for a new queen, rook, bishop or knight of the same colour on the intended square of arrival. > promotion: 3.7e. Where a pawn reaches the eighth rank and is replaced by a new queen, rook, bishop or knight of the same colour. https://www.fide.com/fide/hand…

Thank you for the reference - appreciate that.

I wonder when that explicit rule was introduced. It says in the article:

  "But in fact, at the time this game was played
   there was no specific rule stating that a pawn
   had to be promoted to a piece of the same colour!

Re: The Hardest chess problem in the world?

#13

From FIDE rules: > When a player, having the move, plays a pawn to the rank furthest from its starting position, he must exchange that pawn as part of the same move for a new queen, rook, bishop or knight of the same colour on the intended square of arrival. > promotion: 3.7e. Where a pawn reaches the eighth rank and is replaced by a new queen, rook, bishop or knight of the same colour. https://www.fide.com/fide/hand…

The article states clearly, more than once, that the move is not legal by current FIDE rules.

Re: The Hardest chess problem in the world?

#14
post #8

> "I first encountered this position in June 1937 [...]" OT remark: Jesus. I work with the elderly, mostly. I would love to have her clarity of thought if and when I reach her age. I've heard before that playing chess retains hair loss and mental deterioration, especially in the elderly.

I, too, was curious about Lady Cynthia Blunderboro. It seems she's a fictional persona prone to hoaxes.

https://www.google.com/search?q=lady+cynthia+blunderboro

Re: The Hardest chess problem in the world?

#15
"no longer strictly within the bounds of the rules of the game" I take exception to _strictly_... it's just flat out illegal now, no "strictly" about it. I would have been less ticked off if the article had simply written "no longer within the bounds of the rules of the game."

It is fascinating that the move was formerly legal though.

Re: The Hardest chess problem in the world?

#16
post #8

> "I first encountered this position in June 1937 [...]" OT remark: Jesus. I work with the elderly, mostly. I would love to have her clarity of thought if and when I reach her age. I've heard before that playing chess retains hair loss and mental deterioration, especially in the elderly.

I, too, was curious about Lady Cynthia Blunderboro. It seems she's a fictional persona prone to hoaxes. https://www.google.com/search?q=lady+cynthia+blunderboro

The fact that she by chance happened to have the very same position during normal play gave it away. The probability would be astronomically low.

Re: The Hardest chess problem in the world?

#18

From FIDE rules: > When a player, having the move, plays a pawn to the rank furthest from its starting position, he must exchange that pawn as part of the same move for a new queen, rook, bishop or knight of the same colour on the intended square of arrival. > promotion: 3.7e. Where a pawn reaches the eighth rank and is replaced by a new queen, rook, bishop or knight of the same colour. https://www.fide.com/fide/hand…

Thank you for the reference - appreciate that. I wonder when that explicit rule was introduced. It says in the article: "But in fact, at the time this game was played there was no specific rule stating that a pawn had to be promoted to a piece of the same colour!

Sarratt in his Treatise on the Game of Chess (1808) says:

"When a player has pushed a Pawn to Queen, he is at liberty to make a second Queen, a third Rook, or any other piece which he may deem more useful for his attack or defense".

While this doesn't explicitly say that he must promote to a piece of the same color, it implies it. After all if the piece could be promoted to either color it would make sense to say a third queen or a fifth rook rather than a second or third.

Re: The Hardest chess problem in the world?

#20
post #15

"no longer strictly within the bounds of the rules of the game" I take exception to _strictly_... it's just flat out illegal now, no "strictly" about it. I would have been less ticked off if the article had simply written "no longer within the bounds of the rules of the game." It is fascinating that the move was formerly legal though.

Yeah, but putting "strictly" there does not change the meaning of the sentence, it's just a superfluous word.
Post reply on HN