Nimzo Indian Defense Classical Variation Beginner Puzzle (Rated 1162): Win Material — Tactical Refutation

This puzzle comes from the Nimzo-Indian Defense, Classical Variation, and it shows a classic opening tactic where one active pawn break creates a tactical refutation. The key idea is that a seemingly strong central piece can become overloaded when it is attacked by a lower-value piece and also tied to the defense of another target. In classical chess, these moments often decide the game by winning material rather than by direct attack.