Sergey Karjakin (Black) Puzzle: Trade — Queen Tactics

A queen trade is not always an equal exchange. In tactical middlegame positions, the side that initiates the exchange can first remove a key defender or collect a loose piece. Here, Black’s active queen and rook coordinate against White’s exposed king and overloaded back rank. The important point is that a defended-looking piece can still be vulnerable when its defender must also protect the queen or prevent a more serious threat.