Open Game Puzzle (Rated 1255): Win Material — Mate Threat Tactics

This puzzle is a classic opening tactic built around a mate threat and the overloaded defender. White’s active queen, bishop, and knight coordinate to punish Black’s loose development and exposed king. The key idea is that one black knight is sitting on a strong square but is not adequately defended, while another piece is pinned or tied down to king safety. In practical classical chess, these positions often look calm until a forcing tactical refutation appears.