Old Indian Defense Janowski Variation Puzzle (Rated 1349): Win Material — Hanging Piece Tactic

This middlegame puzzle is a classic example of exploiting a hanging piece while the enemy king is under pressure. White’s rook can capture a loose bishop, and the resulting sequence works because Black’s knight move opens a discovered attack on the rook. The key idea is not just winning a piece, but using forcing moves to keep the initiative and convert a temporary tactical chance into a lasting material edge.