Learn How to Mate in 1: Queen Fork
This middlegame puzzle comes from the Vienna Game and shows how a single tactical shot can end the game immediately when the enemy king is exposed. White’s queen is already active near the black king, and Black’s pieces are loosely coordinated, with key defenders hanging. In positions like this, the winning idea often combines king safety, piece activity, and a direct mating net. The lesson is to always check forcing moves first, especially when the opponent’s king has limited escape squares.