Learn How to Exploit a Pin: Tactical Refutation
This puzzle shows a classic pin-based tactical refutation in the middlegame. One side has already created pressure on the enemy king, and a seemingly active queen becomes vulnerable because it is tied to the king’s safety. The key idea is that a quiet improving move can increase the pressure, forcing the opponent to castle and then allowing the pinned piece to be won. This is a good example of how king safety can outweigh raw material in classical chess.