Learn How to Spot Back Rank Mate: One-Move Tactic
This puzzle is a classic middlegame example of a back rank mate, where the enemy king is boxed in by its own pieces and pawns. The key idea is that a rook can sometimes deliver immediate checkmate when the king has no flight squares and no defender can intervene in time. Even if material is uneven, tactical patterns like this override everything because the attack is forcing and final.