Modern Defense Mongredien Defense Beginner Puzzle (Rated 929): Win Material — Hanging Piece Tactic

This middlegame puzzle comes from the Modern Defense and shows how a single loose piece can decide the game. White’s active pieces look dangerous, but one central knight is overextended and vulnerable to tactical punishment. The key idea is to recognize when a pinned defender and an undefended piece combine to create a forcing sequence. In classical chess, these moments often turn a small initiative into a decisive material gain.