Mate Threat Puzzle (Rated 1435): Defend — Mate Threat
A mate threat can outweigh a large material advantage when the defending king is exposed. In this middlegame position, Black’s active queen and knight coordinate around the white king, while White’s extra material creates a tempting but dangerous sense of security. The key tactical idea is to use a forcing defensive move that addresses the immediate king danger and keeps the attacker’s pieces from gaining decisive access to vulnerable squares.