Learn How to Win Material: Discovered Attack
This middlegame puzzle from the Alekhine Defense Exchange Variation shows a classic tactical refutation built around a discovered attack and a pinned piece. White’s pieces look active, but one tactical sequence exposes loose coordination and turns that activity into a liability. The key idea is that a forcing check can drag a defender away, allowing a second piece to become vulnerable. In practical play, these motifs often decide classical chess games by winning material rather than by immediate mate.