Light Squares Puzzle (Rated 1556): Win Material — Tactical Pin

This middlegame puzzle is a classic example of tactical pressure turning into a decisive material gain. White’s heavy pieces are active, and the key idea is that one loose defender can be removed to expose a much more valuable target. The position also features a relative pin, so a seemingly protected piece is actually tied to a more important one behind it. When the defender is overloaded, the tactic becomes forcing and the material balance swings quickly.