St George Defense San Jorge Variation Puzzle (Rated 1581): Win Material — Tactical Refutation

This middlegame puzzle is a classic example of tactical refutation in a position with kingside tension and a long-term material imbalance. White’s advanced passed pawn and active bishop look dangerous, but Black’s pieces are coordinated to exploit loose back-rank and queen-side targets. The key idea is to notice when an apparently active piece is actually overextended and can be removed by force, allowing a sequence that wins the queen and then converts the attack into a decisive material edge.