Ruy Lopez Skewer Chess Puzzles

A “ruy lopez skewer” is a tactical motif in the Ruy Lopez where a piece is lined up so that one target is forced to move, revealing an attack on a more valuable piece behind it. In many Ruy Lopez structures, the defining moment comes after moves like Bb5 and later ...c6 or ...a6, when the bishop/rook alignment creates a skewer along a diagonal or file. The key feature is that the front piece cannot move freely without exposing the back piece to capture.