Learn How to Win Material: Trapped Piece
This puzzle comes from the Queen's Gambit Declined and shows how a seemingly calm middlegame can hide a decisive tactical shot. White’s position is built around a trapped piece and a vulnerable back rank setup, so the key idea is to simplify at the right moment and convert activity into material. In classical chess, forcing exchanges can be stronger than chasing attacks, especially when an enemy piece is overloaded and cannot escape.