Modern Defense Gurgenidze Defense Puzzle (Rated 1129): Win Material — Discovered Attack

This middlegame puzzle is a classic discovered attack: one piece moves with tempo, uncovering a stronger line for another piece behind it. The key idea is that the hidden attacker becomes active immediately, often with check or a direct win of material. Here, White’s coordination and space advantage create a forcing tactic against a loose rook and an exposed king, turning a tactical motif into a decisive material gain rather than a slow positional squeeze.