Queen's Pawn Game Discovered Check in Chess

In the Queen’s Pawn Game, a “discovered check” happens when one piece moves away to reveal a line-check on the enemy king. The defining feature is that the queen’s pawn structure (often with pawns on d4/c4 and pieces developed on c- and f-files) creates a hidden diagonal or file where a rook, bishop, or queen can suddenly give check after a tactical clearance.