Learn How to Spot Mate in 3: Smothered Mate
This middlegame puzzle shows a classic mating net where the enemy king is boxed in by its own pieces and the final attack comes from forcing checks. The key idea is not material, but coordination: a queen sacrifice draws the defender away, then a rook joins the attack to keep the king trapped. In tactical positions like this, king safety and piece overload matter more than raw material count.