The term 'Most of a Chess Set' refers to the pieces used in a game of chess, excluding the PAWNS. The pieces that make up most of a chess set are the King, Queen, Bishop, Knight, and Rook. These pieces are used to move around the board and capture the opponent's pieces. The King is the most important piece and is the only one that cannot be captured. The Queen is the most powerful piece and can move in any direction. The Bishop moves diagonally across the board, while the Knight moves in an L-shape. The Rook moves horizontally or vertically.