Grunfeld Defense Skewer in Chess

A Grunfeld Defense Skewer is a tactical motif where the Grunfeld side uses a line piece (often a rook or bishop) to force an enemy piece to move while a more valuable target sits behind it. In many Grunfeld structures, the defining feature is pressure along open or semi-open files after ...c5 and ...Qa5 (or similar queen/bishop alignment), enabling a skewer on a key rank or file. The result is usually material gain because the “front” piece cannot avoid the attack without exposing the “back” piece.