The ornamental design for a set of chesspieces, as shown and described.
FIG. 1 is a top plan view of a set of chesspieces according to a first
embodiment of the invention showing, from left to right, Pawn, Rook,
Knight, Bishop, King and Queen;
FIG. 2 is an elevation view of a set of chesspieces shown in FIG. 1;
FIG. 3 is a top plan view of a set of chesspieces according to a second
embodiment of the invention showing, from left to right, Pawn, Rook,
Knight, Bishop, King and Queen;
FIG. 4 is an elevation view of the set of chesspieces shown in FIG. 3;
FIG. 5 is an orthographic projection of the chesspieces of FIGS. 1-4, shown
in their starting places on a chessboard shown in broken lines for
illustrative purposes only.