Queens Gambit Declined Cambridge Springs Defense Skewer in Chess

The Queens Gambit Declined Cambridge Springs Defense Skewer is a tactical motif arising from the Cambridge Springs setup (often after 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Be7 5.Bg5). A skewer occurs when a piece is lined up so that one target must move, exposing a more valuable piece behind it to capture. In this defense, the skewer theme commonly centers on pressure along the c-file/diagonal created by the queenside structure and the bishop/queen alignment.