Boundary

Abstract war/strategy game. Each player has one row of pieces deployed at one side of an 8x9 grid. An elastic band divides the board. Pieces move vertically and horizontally with the objective of placing one piece in the opponents back row. The gimmick is pieces can be eliminated by stretching the elastic band (the boundary) around an opponents piece(s) which eliminates that piece and causes the boundary to change (as that piece is removed from play).