private static Move ForwardRightForWhite(int r, int c, Board board){
        Move forwardRight = null;
        if(r<Board.rows-1 && c<Board.cols-1 &&
                board.cell[r+1][c+1] == CellEntry.empty
          )
        {
            forwardRight = new Move(r,c, r+1, c+1);
        }
        return forwardRight;
    }