user8034: I am confused about pawn promotion. If I promote two different pawns, can I promote them both to a queen?

user32228: Simply add a “flag” of coloured painter’s tape to the top of the pawn with a letter of designation- Q for queen, K for knight, B for… you get the idea. That’s what we do in Touhy, Nebraska.

user8860: Yes.  There are even at least two tournament games that were drawn after
each side Queened two pawns while their original Queens were still
on the board, for a total of 3+3 Queens on the board simultaneously!
See the "most queens" entry in
https://timkr.home.xs4all.nl/records/records.htm.

user9286: To answer your question directly, yes, you can promote to a queen twice (or more) in the same game. Any pawn that makes it to the opposite side of the board can be promoted to a queen. To bring that point home, here is a game where at one point there were six queens on the board:
https://lichess.org/rES8DhJT

user4509: Yes you can. When your pawn reaches the other side of the board then you can have it replaced by any piece that you want except for another pawn or king. There is no limit on the number of pieces of the same kind. So in theory you can have 9 queens or 10 rooks :-)

user2871: Even all 8 of them, if you manage to get them to the opposite back rank. Let's look at the relevant part in the Laws of Chess:

3.7e 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.
  This is called the square of ‘promotion’. The player's choice is not restricted to pieces that have been captured previously. This exchange of a pawn for another piece is called promotion, and the effect of the new piece is immediate.

The bold emphasis is my own and probably the important part for resolving your confusion.

8034: <p>I am confused about pawn promotion. If I promote two different pawns, can I promote them both to a queen?</p>
 32228: <p>Simply add a “flag” of coloured painter’s tape to the top of the pawn with a letter of designation- Q for queen, K for knight, B for… you get the idea. That’s what we do in Touhy, Nebraska.</p>
 8860: <p>Yes.  There are even at least two tournament games that were drawn after
<em>each</em> side Queened two pawns while their original Queens were still
on the board, for a total of 3+3 Queens on the board simultaneously!
See the &quot;most queens&quot; entry in
<a href="https://timkr.home.xs4all.nl/records/records.htm" rel="nofollow noreferrer">https://timkr.home.xs4all.nl/records/records.htm</a>.</p>
 9286: <p>To answer your question directly, yes, you can promote to a queen twice (or more) in the same game. Any pawn that makes it to the opposite side of the board can be promoted to a queen. To bring that point home, here is a game where at one point there were six queens on the board:</p>
<p><a href="https://lichess.org/rES8DhJT" rel="nofollow noreferrer">https://lichess.org/rES8DhJT</a></p>
 4509: <p>Yes you can. When your pawn reaches the other side of the board then you can have it replaced by any piece that you want except for another pawn or king. There is no limit on the number of pieces of the same kind. So in theory you can have 9 queens or 10 rooks :-)</p>
 2871: <p>Even all 8 of them, if you manage to get them to the opposite back rank. Let's look at the relevant part in the <a href="http://www.fide.com/fide/handbook.html?id=171&amp;view=article" rel="noreferrer">Laws of Chess</a>:</p>

<blockquote>
  <p>3.7e 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.
  This is called the square of ‘promotion’. <strong>The player's choice is not restricted to pieces that have been captured previously.</strong> This exchange of a pawn for another piece is called promotion, and the effect of the new piece is immediate.</p>
</blockquote>

<p>The bold emphasis is my own and probably the important part for resolving your confusion.</p>
