Learn How to Corner Mate: Mate in 2
This middlegame puzzle is a classic king-safety lesson: the attacking side uses a forcing queen sacrifice to drag the king into a vulnerable corner, then finishes with a knight checkmate. The key idea is that the enemy king has too few escape squares because its own pieces and pawns block the flight route. In practical classical chess, these patterns often appear when a queen and knight coordinate against a weakened kingside and an exposed king.