Learn How to Win Material: Discovered Attack
This middlegame puzzle from the Vienna Game shows how a forcing tactical idea can turn king safety into a decisive material gain. White’s pieces are coordinated around the enemy king, and one active bishop creates a direct threat that cannot be ignored. The key motif is a discovered attack: when one piece moves with tempo, it opens a line for another piece to strike a more valuable target. In positions like this, activity often matters more than raw material.