Learn How to Spot Mate in 2: Endgame Tactics
This chess endgame puzzle is a classic forcing finish: the attacking side uses a check to drive the king onto a vulnerable square, then finishes with a rook mate. The key idea is that the defending king has very limited flight squares, so even a seemingly active queen or extra material does not matter if the mating net is already in place. In classical chess, these short tactical refutations often appear when the king is exposed and coordination is poor.