Nxd4 Puzzle (Rated 915): Spot Mate — Checkmate
This Hungarian Opening puzzle demonstrates how a seemingly comfortable material advantage can collapse when king safety is neglected. Black’s pieces are actively placed near the center and kingside, while White’s king has limited shelter and several vulnerable squares. The key tactical idea is a direct knight checkmate, exploiting the king’s restricted escape routes and the absence of effective defenders. In middlegame positions, always compare material with immediate king threats before assuming the position is strategically winning.