Learn How to Win Material: Pin Tactic
This middlegame puzzle comes from the Borg Defense and shows how a pinned queen can become a tactical target. White’s active rook and bishop coordinate against the black king’s exposed position, creating a forcing sequence that wins material. The key idea is that a piece which appears defended may actually be vulnerable if moving it would open the king to checks or lose the queen to a stronger attacker. Look for forcing moves that exploit pins, skewers, and loose pieces.