Zukertort Opening Black Mustang Defense Puzzle (Rated 1038): Crush with a Fork — Decisive Material Gain

This puzzle comes from the Zukertort Opening and shows a classic middlegame tactical idea: a forcing knight fork that wins material and leaves the opponent’s king exposed. The position is not about a mating net; it is about a decisive tactical refutation that exploits loose pieces, king safety, and poor coordination. When a knight can give check while also attacking a valuable target, the combination often becomes overwhelming because the defender has too few useful replies.