Indian Defense Medusa Gambit Puzzle (Rated 1215): Crush a Pin — Decisive Material Gain

This middlegame puzzle shows how a pin can turn into a decisive material gain when the king’s safety is already compromised. White’s active queen and knight create pressure, but Black’s counterplay is based on a forcing tactical sequence that exploits alignment on the board. The key idea is to use a bishop move to pin a major piece against the king, then follow with a rook response that keeps the pressure alive and wins material. It is a classic example of tactical refutation in a sharp classical chess position.