Learn How to Spot Back Rank Mate: X-Ray Attack
This puzzle is a classic back rank mate pattern in a simplified middlegame-to-endgame setting. The key idea is that the enemy king has limited escape squares because its own pawns and pieces block the back rank. A forcing check can drag a defender away and create a direct mating line. The x-ray attack matters because a rook or queen may be lined up behind another piece, so once the front piece moves, the hidden attacker becomes decisive.