You want to keep pieces on because it will give your pieces more lines and activity as well as a slight space advantage.
If pieces are traded off it's normally a slight weakness in the endgame.
A question about isolated pawn
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Keep them on the board. The isolated pawn may help you in the opening and middlegame, allowing freeing development and movement of your pieces but it will become a rather large weakness in the endgame.
Scott beat me to it.
Dec 29, 2013
0
#5
Also, if you can advance it before it gets blockaded, you usually do quite well.
If i have an isolated pawn in the center, should i try and keep more pieces on the board or try to exchange as much as i can? (or it doesn't even matter)