Learn How to Corner Mate: Queen's Gambit Declined
This middlegame puzzle comes from the Queen's Gambit Declined, Marshall Defense and shows how a corner mate can appear when the king’s shelter is overloaded. White’s queen and knights coordinate to exploit the dark squares around the black king, while Black’s pieces are too tied up to defend the critical entry squares. In classical chess, these tactical shots often arise when king safety matters more than material and one forcing move ends the game immediately.