This works only if the colors are reversed in subsequent boards. To avoid this trick, all traditional simuls (short for simultaneous play - where one chess master plays many people) have two simple rules: 1)The chess master has the same color in all the boards 2) The color of the chess master's pieces are usually white

Since white always makes the first move in a chess game, it is not possible to copy the game from board A and play it in board B with reverse colors.