Learn How to Clear the Line: Mate in 3
This middlegame puzzle is a classic example of clearance: one piece is removed so a rook or queen can invade along a key file. The position also shows how a pinned defender can be overloaded, turning a seemingly active defense into a forced mating net. Even with material imbalance, the attack matters more than the count when the king’s shelter is loose and the back rank is vulnerable.