blockade
placement of a piece directly in front of an enemy pawn, where it obstructs the pawn's advance, and hinders the movements of the other enemy pieces
en-GB/blɒˈkeɪd/
en-US/ˌblɑˈkeɪd/
placement of a piece directly in front of an enemy pawn, where it obstructs the pawn's advance, and hinders the movements of the other enemy pieces