Learn How to Spot: Mate in 2
This middlegame puzzle shows how a queen and rook can coordinate to create a forced mating net on the queenside. The key idea is that the defending pieces are overloaded, so one forcing check can drag the king into a square where the follow-up becomes unavoidable. In classical chess, these short tactical finishes often come from active piece placement and a weakened king shelter rather than from material count alone.