I would call this a skewer as the piece in front is still able to move
Is this a Pin? or a Skewer? What is this called really?
Sort:
Maybe it's a (flawed/ineffective/pseudo-) pin/skewer combo. A skin. Or a pewer.
[COMMENT DELETED]
Bishops are worth more than knights IMO (I know knight can be better in closed positions, but a knight is better than a queen if the king and queen can be forked). So it's a skewer gone wrong 
Okay, taking all irrelevant tactical manoeuvres and relative piece values out of it, what's this then?
Genuine question -- I really don't know.
Thanks, but I don't think I can really accept that as even if, as you suggest, all skewers are pins it doesn't follow that either fits this example as both definitions refer to one or other piece being of "lesser value".
I've cited two rooks as they are obviously of the same value -- so neither pin nor skewer would seem to fit (basically the same point made by the original poster although he perhaps unwisely chose B & N thus sparking off arguments about the relative values of B/N).
I've now come to the working assumption that the chess world hasn't actually got a name for this situation (unless anyone can convince me to the contrary) -- hence suggestions of "kebab" etc.
Currently the definition of "skewer" (having researched on Wikipedia etc.) is that the piece behind the directly attacked piece is of lesser value; my suggestion therefore is that this might be expanded to "a piece of lesser or the same value". What do people think?
I would propose changing the skewer definition rather than pin, as pins are more common and so the definition of pin is more widely established.
(According to Wikipedia an "X-ray Attack" is synonymous with "Skewer", therefore also referring to pieces of differing value and so not consistent with this example.)
Aug 20, 2018
0
#68
I heard that if two pieces of equal value are lined up, it is a skewer and only a skewer.
Nilocra_the_White schreef:
Interesting comments. Does anyone have an opinion on whether this is a win, loss or draw for white. Also everyone seems to assume it is black to move. If it is white to move then it is a straight taking of an unprotected piece where white takes the bishop (maybe called miss-coordinated pieces), then a double attack on the knight and king, then when the knight interposes, it is a pin.
This position is a draw. It doesnt matters if white or black has the first move. After white must move he can take the bishop with check with 1.Rxe5+ and after Ne7 it is still a draw. If black may moe first it is also a draw. he can save the piece with 1...Bg3+ and lets say 2.Kd1 and for example 2...Ne7 and black has two pieces for a rook but it is still a draw. Or he can not do that and after 1...Ne7 2.Rxe5 it is still a draw.
But thats not the piont. Lets change the position a bit and say the white king is on d1 and there is an extra white pawn on d2. Now with white on move Rxe5+ will win. And also if black must move then you loses a piece because the two black pieces both are on the same row of the rook and there is no way black can save the piece. How you name this? Undefended pieces on the same row? Attacked by a rook? Hanging pieces will do. Now white will win.
This is a pin the bishop can not move otherwise the black king is in a check.
This is a skewer The black King must move and the bishops behind it will fall.
Aug 18, 2021
0
#72
By definition the knight is lesser valuable piece behind the bishop and bishop in front so it would be considered a pin. Chess.coms own definition of pin vs skewerA skewer is very similar to a pin, but there is one decisive difference. In a skewer, the most valuable piece is the one suffering a direct attack, while a weaker piece stands behind it. In a pin, the opposite happens. So that means the it would be a pin though trivial amount of material of .25 less than the bishop.
A bishop attack on two knights in a row is referred to as a skewer in this vid with Magnus Carlsen and IM Sebastian Mihajlovplays playing "Hand and Brain": https://www.youtube.com/watch?v=gGYJPGseT5Y&t=1492s
MrKornKid wrote:
I’d say neither. Just a couple of hanging pieces
zeus3101 wrote:
It is exactly that
Spideypowers wrote:
Yeah, it’s not a pin , it’s Just a couple of hanging pieces
I’d say neither. Just a couple of hanging pieces
zeus3101 wrote:
It is exactly that
Spideypowers wrote:
Yeah, it’s not a pin , it’s Just a couple of hanging pieces
Its rather a double attack,but in x ray variation.
its a free piece.
You had to revive this thread