Englund Gambit Pin Puzzle (Rated 1003): Mate in 1 — Englund Gambit Trap

This middlegame puzzle comes from the Englund Gambit and shows how quickly a kingside attack can turn into a forced mate when the enemy king is boxed in. Black’s pieces are coordinated around the white king, with the knight, bishop, and rook all creating direct pressure on the kingside. The key idea is that one active piece can finish the game immediately when the opponent’s king has no safe squares and the defensive pieces are overloaded or pinned.