Learn How to Pin: Winning Material
This puzzle shows a classic middlegame pin where a well-placed bishop attacks a key defender and the queen behind it. The idea is not a flashy king hunt, but a clean tactical refutation that wins material by exploiting alignment on the same file or diagonal. In sharp opening positions like the Elephant Gambit, development and piece activity matter more than pawn count, so a single active piece can create a decisive imbalance.