Pin Puzzle (Rated 2079): Spot a Pin — Quiet Defense

This middlegame puzzle centers on king safety, a relative pin, and the danger of allowing an active enemy knight to dictate the play. White is under pressure because several pieces are vulnerable, yet Black’s attacking piece is also exposed. The best defensive idea is a quiet move that improves the king’s safety while preserving tactical pressure. This prevents a direct material loss and keeps Black’s pieces from exploiting the overloaded defenders.