Ruy Lopez Lucena Variation Puzzle (Rated 1289): Exploit a Discovered Attack — Middlegame Tactic
This middlegame puzzle is built around a discovered attack, where one move opens a line for a hidden piece while creating immediate tactical pressure. Black’s pieces are active, and the white queen and knight are vulnerable to a forcing sequence that also targets the king’s shelter. The key idea is not a direct checkmate, but a decisive material win created by opening lines at the right moment. In practical chess, these tactics often decide games because they combine threat, tempo, and overload.