Learn How to Spot Kill Box Mate: Mate in 2
This puzzle is a classic kill box mate pattern in the middlegame, where the enemy king is boxed in by its own pieces and limited escape squares. White’s heavy pieces coordinate to force a check that drags the defender onto a key square, after which the final rook invasion delivers mate. The idea is not material gain but precise coordination, using the open file and the trapped king’s lack of flight squares.