Learn How to Win Material: Discovered Attack
This middlegame puzzle is a classic example of a discovered attack combined with a forcing check. The key idea is that one piece creates a direct threat while another line opens up on the same move, forcing the opponent’s king into a narrow set of replies. In positions like this, active queen and rook coordination can turn a small edge into a decisive material gain, especially when the enemy king is slightly exposed and the back rank or d-file is vulnerable.