Intermediate training question
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So, I'm in the intermediate trading on pins and the system us showing me this is a good move, but I disagree and am wondering if I'm missing something:
https://drive.google.com/file/d/1-5RivURDrm68exv6K126Ux2cQje9lHAy/view?usp=drivesdk
Sorry, I had a hard time copying and pasting!
Anyrate, the rook just moved to e8, and as you can see the computer thinks the queen is pinned. However, if the queen takes the rook, it's her move at this point, so that option is available to her, then there's now no problem and the queen is no longer pinned, no other piece threatens the king, so this really isn't an example of a pinned queen, is it?
MrGaribaldi wrote:
So, I'm in the intermediate trading on pins and the system us showing me this is a good move, but I disagree and am wondering if I'm missing something … the rook just moved to e8, and as you can see the computer thinks the queen is pinned. However, if the queen takes the rook, it's her move at this point, so that option is available to her, then there's now no problem and the queen is no longer pinned, no other piece threatens the king, so this really isn't an example of a pinned queen, is it?
You seem to me to be asking two questions. With regard to the first, ...Re8 seems to me to be a good move if White is compelled to give up a queen for a rook. Your second question is more a matter of terminology. As far as I know, nobody is in charge of terminology, but I suspect that most would classify this as an example of a pinned queen. One has to wonder what would count as a pinned queen if this did not. Is it your position that it is impossible to pin a queen?
Jun 5, 2019
0
#4
No matter what the white does, he’ll always end up exchanging the Queen for a piece of less value, and I think that’s the point of the lesson. As for the terminology I think you’re both right: if there was a pawn instead of the Queen nobody would’ve said the pawn was pinned, but in situations like this I’ve always heard everyone referring to the Queen as being pinned. To clarify the matter, maybe you should think at a pinned piece at a piece that cannot escape a capturing threat just by moving away.
Jun 5, 2019
0
#5
But if the Queen moves to e2 then white can still castle . . .
1. Qe2 Rxe2. Bxe2
Then castles next move.
DENVER
Jun 5, 2019
0
#6
DENVERHIGH ha scritto:
But if the Queen moves to e2 then white can still castle . . .
1. Qe2 Rxe2. Bxe2
Then castles next move.
DENVER
Still, white MUST trade a Queen for a Rook, that’s the whole point of pinning a Queen: forcing the opponent to a loss of material. What happens next is beyond the topic...
Jun 5, 2019
0
#7
White must lose the queen. It’s pinned because the queen can't escape to other files because if queen is moved from that file to save itself, then the king will be under check, which is not possible. Winning the queen by pinning the queen.
MrGaribaldi wrote:
https://drive.google.com/file/d/1-5RivURDrm68exv6K126Ux2cQje9lHAy/view?usp=drivesdk
Sorry, I had a hard time copying and pasting!
Anyrate, the rook just moved to e8, and as you can see the computer thinks the queen is pinned. However, if the queen takes the rook, it's her move at this point, so that option is available to her, then there's now no problem and the queen is no longer pinned, no other piece threatens the king, so this really isn't an example of a pinned queen, is it?
We call this a partial pin, in the sense that the queen is only pinned to the e-file and is unable to move off the e-file.
So in this case, the queen can of course capture the rook. The computer marks the move as excellent because this pinning wins material. It's not the pin itself which is excellent, but rather the fact that material is won.
davidevitali wrote:
No matter what the white does, he’ll always end up exchanging the Queen for a piece of less value, and I think that’s the point of the lesson. As for the terminology I think you’re both right: if there was a pawn instead of the Queen nobody would’ve said the pawn was pinned, but in situations like this I’ve always heard everyone referring to the Queen as being pinned. To clarify the matter, maybe you should think at a pinned piece at a piece that cannot escape a capturing threat just by moving away.
I guess this is partly because the pawn is generally considered to be weaker than other pieces and it is an overkill to label the term 'pin' to a pawn.
Jun 5, 2019
0
#11
eric0022 ha scritto:
davidevitali wrote:
No matter what the white does, he’ll always end up exchanging the Queen for a piece of less value, and I think that’s the point of the lesson. As for the terminology I think you’re both right: if there was a pawn instead of the Queen nobody would’ve said the pawn was pinned, but in situations like this I’ve always heard everyone referring to the Queen as being pinned. To clarify the matter, maybe you should think at a pinned piece at a piece that cannot escape a capturing threat just by moving away.
I guess this is partly because the pawn is generally considered to be weaker than other pieces and it is an overkill to label the term 'pin' to a pawn.
Actually, pinning pawns is a very common tactic to win material (not because you capture the pawn, but for the pieces the pawns are protecting
And 15 fxg3 can not be played because ...
(The moves come from a game in Discovering Chess Openings by GM John Emms.)
kindaspongey wrote:
.... Correct me if I'm wrong (and I'm fairly new, so it's possible), but can e4 capture f4 en passant, leading the way to Re1+Ke8 then Qg5+e8....... You get the idea, a strong game for white.
And 15 fxg3 can not be played because ...
(The moves come from a game in Discovering Chess Openings by GM John Emms.)
Not sure what you are thinking. In the game, there was never anything on f4 to be captured. In any case, a White pawn can only do an en passant capture if it is on a5, b5, c5, d5, e5, f5, g5, or h5. Example:
I'm actually talking about the way this game ends up:
the e4 and e5 pawns both moved their two moves, making the e5 a choice for en passant (if I'm correct)