Learn How to Win with a Pin: Endgame Skewer
This chess endgame puzzle shows how a seemingly active queen can become a tactical liability when a rook lines up against the king. The key idea is a pin: a piece is forced to stay put because moving it would expose a more valuable target behind it. In practical terms, the pinned queen can no longer defend everything at once, and the position collapses into a winning skewer or exchange sequence. These are classic endgame patterns where activity and king placement matter more than raw material.