Learn How to Crush a Pin: Discovered Attack
This middlegame puzzle is built around a classic discovered attack idea: one piece moves with tempo, opening a line for a rook while also creating a forcing check. The key is that the opponent’s king is exposed and several pieces are tied down by pins and skewers, so a quiet-looking capture can actually be the start of a decisive tactical sequence. The position rewards recognizing how one threat can unlock another, especially when the enemy queen and knight are overloaded.