Learn How to Win Material: Queen Fork
This middlegame puzzle comes from the Queen's Gambit Declined and shows how a forcing queen move can create a fork against the king and a loose piece. White’s attack is built on king safety, active knights, and a vulnerable black king shelter. The key idea is not a direct mate, but a tactical win of material by using check to force a weakening pawn move, then exploiting the newly exposed target. It is a classic example of a winning combination in classical chess.