Depende mucho de la posición, supongo. Nada es gratis, si ofreces la dama es porque has planeado bien ese sacrificio buscando mate en 3, 4 o 5...
Am I losing if I defend with my Queen?
Please consider the example below. The 17th move is next and White is one point up in material by having captured a Knight and 3 pawns against Black who has captured a Knight and 2 pawns. See the next two moves in the diagram below. At the end of move #18 both players have the same amount of material. Black's final move is Qf6 which the computer says is not as good as Qc5. Without the benefit of an Eval bar how does White know that he/she is winning after Qf6. Does the opponent Queen behaviour indicate that White is in a stronger position? For example, White's Bishop on c4 is hanging. So, the better move for Black is to attack it with Qc5. But, Black moves to Qf6 instead which seems that Black was looking for safety. If you are White, would you feel that you are winning after that move?
Queens are often used in a battery to complete an exchange. That's no indication that I'm losing. However, am I losing if I I'm forced to defend a piece from capture?