Nimzo Indian Defense Classical Variation Beginner Puzzle (Rated 1433): Win Material — Hanging Piece Tactic

This puzzle comes from the Nimzo-Indian Defense and shows a classic opening tactic: when a piece is left hanging, tactical pressure can outweigh static material concerns. White has active pieces and a clear target in the center, while Black’s coordination is loose enough that a forcing sequence wins material. In classical chess, these moments often decide the game before the middlegame fully begins, especially when a pinned piece and an undefended piece appear together.