Petrovs Defense Nimzowitsch Attack Puzzle (Rated 1440): Win Material — Fork Tactics

This middlegame puzzle is a classic example of how king safety can outweigh material. White’s queen and rook are active near the enemy king, but the position contains a hidden tactical refutation: one forcing check creates a powerful follow-up that wins material by attacking multiple targets at once. The key idea is a bishop-based fork that also keeps the white king under pressure, turning an apparently dangerous attack into a decisive advantage for Black.