Queens Gambit Declined Chigorin Defense Under Promotion in Chess

In the Queens Gambit Declined Chigorin Defense, Black accepts structural tension and often challenges White’s center with …c5 and piece play. “Under Promotion” here refers to a rare but decisive endgame tactic where a pawn promotes to a piece lower than a queen (typically to a knight) to avoid stalemate, gain a tempo, or deliver a specific check pattern. The defining feature is that the promotion choice is forced by the position created by the Chigorin-style struggle.