Learn How to Win Material: Queen Sac Tactic
This middlegame puzzle comes from the Queen's Gambit Declined and shows how active pieces can outweigh raw material. White’s queen and rook coordinate against the black king and loose queenside pieces, creating a tactical sequence based on king safety, pinning ideas, and a skewer on the back rank. The key lesson is that a seemingly strong extra piece can become irrelevant when the king is exposed and key defenders are overloaded.