Learn How to Back Rank Mate: Mate in 1
This puzzle is a classic back rank mate pattern in a middlegame setting. The key idea is that the enemy king is boxed in by its own pieces and pawns, leaving the first rank vulnerable to a direct rook invasion. Even though the position looks materially balanced or even favorable for one side, king safety overrides everything when the final rank is exposed. The tactic works because the defending pieces cannot create an escape square in time.