Queens Gambit Declined Cambridge Springs Defense En Passant in Chess

In the Queens Gambit Declined Cambridge Springs Defense, Black challenges White’s center with …Qa5 and often targets d4. The En Passant motif appears when White has a pawn on d5 and Black plays …c5 (or …c6 leading to …c5) so that White can capture en passant with exd6 (or the corresponding en-passant capture on the adjacent file). This creates a tactical, tempo-sensitive break tied to the Cambridge Springs pawn structure.