Queens Gambit Declined Chigorin Defense Discovered Check in Chess

In the Queens Gambit Declined Chigorin Defense, Black accepts an early queenside tension (often via ...c5 and ...Nc6) and may place pieces so a line opens quickly. A “discovered check” happens when one piece moves away (or a pawn/line opens) to reveal an attack on the enemy king—typically along a diagonal or file—while the moving piece itself is not the checking piece. In this motif, the defining feature is that the Chigorin structure creates a tactical opening where a discovered check becomes forcing.