Learn How to Win Material: Discovered Check
This middlegame puzzle comes from the Queen's Gambit Accepted and revolves around a powerful discovered check. White’s advanced passed pawn and active bishop/rook coordination create a direct tactical shot against the black king. The key idea is that one forcing move opens a line while simultaneously exposing a hidden attack on the queen and king. That combination of check, pin, and discovered attack turns a promising position into a decisive material win.