French Defense Franco Sicilian Defense Puzzle (Rated 1149): Win Material — Hanging Piece Tactic

This middlegame puzzle is a classic hanging piece tactic: one side has an undefended knight, and the board is arranged so that tactical pressure wins material immediately. The key idea is to notice that active pieces can exploit loose coordination, especially when a rook or bishop attacks a piece that cannot be safely defended. Here, the position rewards forcing play and accurate calculation, not slow maneuvering. It is a good example of how a small tactical oversight can turn into a decisive material gain.