Learn How to Spot: Mate in 1
This middlegame puzzle is a pure mate in 1 test, where the side to move has no time for strategy or material concerns. The key idea is recognizing a mating net around the enemy king: the checking piece lands on a square that cannot be captured, blocked, or escaped from. Positions like this reward fast pattern recognition, especially when the opponent’s king is exposed and your pieces already control the critical escape squares.