Learn How to Win a Piece: Discovered Attack
This classical chess puzzle shows a sharp middlegame idea: using a tactical refutation to win material by exploiting a pinned piece and a discovered attack. In the Trompowsky Attack, active piece placement often creates immediate targets, and here Black can punish the overextended white bishop setup. The key is to notice that one defender is overloaded and that a capture on the central knight opens the line for a bishop to attack a loose piece. It is a clean example of how tactics can outweigh short-term development.