Learn How to Mate in 1: French Defense Tactic
This middlegame puzzle comes from the French Defense and shows how a single active queen can end the game when the enemy king is stuck in the center. Black’s pieces coordinate on open lines, with pressure along the d-file and a bishop controlling key escape squares. The position is a classic example of a mating net: when the king has little room, even one forcing move can be decisive. It also highlights how pins and overloaded defenders can leave the defense helpless.