I am in agreement that there are certain ideas for when to take the Queens off the board in the opening, such as in some Spanish lines where the d file is opened and the only recapture is with the King, thus keeping him in the center of the board (a positional consideration I think more than purely a tactical conern) or if say you are playing a Philidor with the moves 1. e4 e5 2. Nf3 d6 3. d4 Bg5 4. dxe5 dxe5? 5. Qxd8+ Kxd8 6. Nxe5 and Black s certalized and has to come up with a square to retreat his Bishop (here this is both a postional and material consideration as white temporarily has the pawn) yet there are some lines where taking the Queens off the board diminishes tactical chances for the lesser player as well as the greater player, such as in closed games beginning with 1. d4 or even 1. Nf3. If the better side gains some imbalances or miniscule advantages through the middle game, then it will be harder for you to play to an even positon in the ending without either some blunder or by having a good endgame technique to fall back on.
One of the things I look at whem deciding whether to exchange the Queens off the board is how the opponent uses his own Queen and other pieces. Does he try to attack with the Queen early? If so, thentakingthe Queens off if possible might be good though likely anyone who is heavily reliant on his Queen is likely to try to hold on to it as longas possible, in which case going to solid development and depriving the opponent of play with the piece might work better. Does he leave the Queen behind on the 2nd or 3rd ranks in order to complete development? Here I would want to se if he holds on to as many pieces as possible, indicating some degree of either tactical play or solid defensive play. In this case, I would be more inclined to retain the Queens so as to have more opportunities on the board for attacking. Is he going to try to exchange all but the heavy pieces? this signals to me a lack of tactical or positonal playing ability where he wants to enter into endgames as fast as possible. Here imbalances such as space, pawn structures, and piece activity play a factor (Bishop versus Knight, 2B+pawns v B+N+pawns etc.). If an imbalance can be reached that one is knoweledgeable in, then there are chances for wins if the the Queens are exchanged off, typicall towards the end of the middle game when the ability to guard weakened squares and pawns is heightened.
It might seem like this a lot to consider but typically only one to two of these ideas are gong to come up in any significant play as well, or at least in the levels of play that I face regularly. Usually I try to approach each game as its own separate creature rather than go by what the position loks like, especially if I either am unfamiliar with a line or if there is a subtle difference in the game. an example of this is an idea in an Italian game where I played 3... a6 to get out of some of the Fried Liver lines and even some evans lines available for White because now if Black gets in ...d5 dxe5 Na5, white does not have the Bc6+ anymore. So the position by one small pawn move is a totally different line entirely. Where in one line it might not be good to trade the Queens, it might be good in the other.
I think the thing that many people try to get one to ask is what tactical or positional consideration is there for me if I exchange Queens? if your positin is cramped as black, trading might be goo but if you have equal or greater space, it may be better to hold on to her instead unless there is a check that forces the trade or a fork that makes it the only way to save the second piece.
You are extremely long-winded.
I am in agreement that there are certain ideas for when to take the Queens off the board in the opening, such as in some Spanish lines where the d file is opened and the only recapture is with the King, thus keeping him in the center of the board (a positional consideration I think more than purely a tactical conern) or if say you are playing a Philidor with the moves 1. e4 e5 2. Nf3 d6 3. d4 Bg5 4. dxe5 dxe5? 5. Qxd8+ Kxd8 6. Nxe5 and Black s certalized and has to come up with a square to retreat his Bishop (here this is both a postional and material consideration as white temporarily has the pawn) yet there are some lines where taking the Queens off the board diminishes tactical chances for the lesser player as well as the greater player, such as in closed games beginning with 1. d4 or even 1. Nf3. If the better side gains some imbalances or miniscule advantages through the middle game, then it will be harder for you to play to an even positon in the ending without either some blunder or by having a good endgame technique to fall back on.
One of the things I look at whem deciding whether to exchange the Queens off the board is how the opponent uses his own Queen and other pieces. Does he try to attack with the Queen early? If so, thentakingthe Queens off if possible might be good though likely anyone who is heavily reliant on his Queen is likely to try to hold on to it as longas possible, in which case going to solid development and depriving the opponent of play with the piece might work better. Does he leave the Queen behind on the 2nd or 3rd ranks in order to complete development? Here I would want to se if he holds on to as many pieces as possible, indicating some degree of either tactical play or solid defensive play. In this case, I would be more inclined to retain the Queens so as to have more opportunities on the board for attacking. Is he going to try to exchange all but the heavy pieces? this signals to me a lack of tactical or positonal playing ability where he wants to enter into endgames as fast as possible. Here imbalances such as space, pawn structures, and piece activity play a factor (Bishop versus Knight, 2B+pawns v B+N+pawns etc.). If an imbalance can be reached that one is knoweledgeable in, then there are chances for wins if the the Queens are exchanged off, typicall towards the end of the middle game when the ability to guard weakened squares and pawns is heightened.
It might seem like this a lot to consider but typically only one to two of these ideas are gong to come up in any significant play as well, or at least in the levels of play that I face regularly. Usually I try to approach each game as its own separate creature rather than go by what the position loks like, especially if I either am unfamiliar with a line or if there is a subtle difference in the game. an example of this is an idea in an Italian game where I played 3... a6 to get out of some of the Fried Liver lines and even some evans lines available for White because now if Black gets in ...d5 dxe5 Na5, white does not have the Bc6+ anymore. So the position by one small pawn move is a totally different line entirely. Where in one line it might not be good to trade the Queens, it might be good in the other.
I think the thing that many people try to get one to ask is what tactical or positional consideration is there for me if I exchange Queens? if your positin is cramped as black, trading might be goo but if you have equal or greater space, it may be better to hold on to her instead unless there is a check that forces the trade or a fork that makes it the only way to save the second piece.