Learn How to Win Material: Old Indian Defense
This middlegame puzzle from the Old Indian Defense shows how a pinned piece can become a tactical target when the queen and rook line up on the same file. White’s queenside structure is loose, and the active black bishop creates pressure against the knight and king at once. The key idea is that a seemingly natural capture can open a direct route to the opponent’s heavy pieces, turning a positional edge into a decisive material gain.