The move isn't completed until the clock is pressed. For FIDE, after completion, the pawn on the square is considered an illegal move and has to be promoted to a queen. I don't have the USCF rulebook near me so I can't verify how it is handled there. I think the player can be penalized for the illegal move and the must promote while the clock is running but I'm not sure.
However, the move has been determined and the pawn move would stand regardless if the clock was pressed.
For ordinary move, after moving a piece and touching a square of arrival, but before releasing the piece at the square of arrival, it is allowed to take off the piece from the square it has touched and make a different legal move with the same piece, correct?
Then after moving a pawn to promote, but before replacing it with a promoted piece, what are the legal alternatives? Another legal move with the same pawn? Which would still be a promotion, if to a different piece or on a different square?
Anyway, if you are his teacher make sure you find a minute or two at proper time to make it clear to him, bad habits and unspormantship must be prevented. The fact it was your game is irrelevant.
Yeah, your student is wrong. And he's going to keep doing it until you act. There's really only one way to make it understood that a behavior is undesirable.
Under FIDE rules:
When you touch a piece with the intention of moving it you have to move it as long as the piece can legally be moved.
When you release a piece on a square you cannot move the piece to a different square that move unless the move is illegal.
When promoting a pawn the choice of piece is finalised when the new piece has touched the square of promotion.
Thanks all. We weren't playing with a clock, but even if we had been he would have tried to change before he pressed it. It's a delicate situation with this bad-tempered and angsty teen, but like Pulpofeira said, at the proper time I'll follow up with him.
Under FIDE rules:
When you release a piece on a square you cannot move the piece to a different square that move unless the move is illegal.
When promoting a pawn the choice of piece is finalised when the new piece has touched the square of promotion.
True. A notable exception - usually a move is final when the piece is released on board, but choice of promoted piece is final as soon as the promoted piece has touched a square of promotion.
Does it mean that a player who has touched a promotion square with a promoted piece but has not released it is therefore not allowed to promote to a different piece, but IS allowed to promote to the same piece on a different square?
Under FIDE rules:
When you release a piece on a square you cannot move the piece to a different square that move unless the move is illegal.
When promoting a pawn the choice of piece is finalised when the new piece has touched the square of promotion.
True. A notable exception - usually a move is final when the piece is released on board, but choice of promoted piece is final as soon as the promoted piece has touched a square of promotion.
Does it mean that a player who has touched a promotion square with a promoted piece but has not released it is therefore not allowed to promote to a different piece, but IS allowed to promote to the same piece on a different square?
Was this supposed to be a joke? When promoting, you can only promote on one square. There is no such thing as promoting to a different square.
I was playing one of my students the other day and he went to promote his pawn, negligent of my queen waiting in ambush on the back row. He moved forward and took his hand off the pawn, but then he saw my queen and wanted to take it back. I said that he couldn't becaue he took his fingers off. He argued that he could because "his move wasn't over" since he hadn't technically promoted yet by replacing the piece. I ended up letting it go because I'm am an adult and wasn't going to whine, but I just wanted clarification for future reference. What would the actual rule be for this instance?