The generator matrix

 1  0  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  0  1  1  1  1  1  0  1  1  1  1  1  1  1  1  1  1  X  1  1  1  1  1  1  1  1  1  X a*X  1 a^2*X  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1 a*X  1  1  1  1  1 a*X  1  1  1 a*X  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1 a^6*X  1  1  1
 0  1  1  a a^7*X+a^2 a^3 a^7*X+2 a^7*X+a^6 a^5 a^7  0 a^7 a^5  a a^7*X+a^6 a^7*X+1 a^7*X+a^2 a^3  1 a^7*X+2  0 a^7*X+1 a^7*X+a^6 a^3  1  a a^7*X+2 a^6*X+a^6  X a^5 a^7 a^7*X+a^2 X+a^7 a^6*X+2 a^6*X+a^6  1 X+a a^5*X+2 a^2*X+a^7 a^2*X+a X+a^3 a^6*X+2 a*X+a^3 X+a^5 X+a  1  1 a^7*X+a^6  1 X+a^5 a^6*X+a^6 a^6*X+a^2 a^7*X+1 a^5*X+a^7 2*X+a^2 a^5*X+a^3 a^5*X+a^2 a^5*X+2 2*X+a^7  X 2*X+1 a^6*X+2 a^6*X+1 a*X X+a^7  1 2*X+a^5 a*X 2*X+1 a^2*X+a^3 a^7*X+a^2  1 a^2*X+a^7 a^2*X X+1  1 a^5*X+2  X a*X+1 a^7*X+1 a*X X+a^7 a^5*X+2 X+a a^5*X+a^6 a^5*X+a^6 a^7 a*X+a^3 a*X+a a^3*X+a^3 a^2*X+a^5  a a*X+a^3 a*X+a^7 a^7*X  1 a*X+2 2*X+a^7  0
 0  0 a^7*X  0 a^7*X  X a^6*X a^6*X 2*X a*X a^7*X a*X  X  0 a^5*X a^3*X a^6*X 2*X a^5*X a*X a^5*X 2*X a*X a^3*X a^5*X a^2*X a^7*X a^5*X a^5*X 2*X  X  0 a^3*X  0 a^6*X a^3*X  X 2*X  X a*X 2*X  X a*X a^7*X a^6*X 2*X a*X  X a^3*X a^5*X a^7*X a^5*X a^2*X a^7*X a^2*X a^6*X  X a^3*X a^3*X a^6*X a^6*X a^3*X a^3*X 2*X  X  X a^7*X a^3*X 2*X a^5*X a^3*X a^2*X a*X a*X a*X a^2*X a^7*X a^5*X a^5*X a^3*X a^7*X a^5*X a^7*X a^5*X a^2*X  0 a^3*X a^2*X a^5*X a^3*X  X  X 2*X a^7*X a*X 2*X  X  X  0
 0  0  0  X a^7*X a^7*X  X a*X  X a^2*X a^5*X a^6*X a^5*X a*X a^2*X a^7*X  0 a^3*X a*X a^3*X a^6*X 2*X a*X a^5*X  X  0  X 2*X a*X a^6*X a*X a^7*X a*X a^6*X a^3*X  0 a^3*X a^2*X a^5*X  X a^6*X a^3*X a^5*X  0 a^3*X 2*X a^2*X a^7*X a*X a^2*X a^7*X  X a^7*X a^6*X a^3*X a^6*X  X a*X a^2*X  X a^5*X a^7*X 2*X a^2*X 2*X a^2*X a^5*X a^3*X a*X a^3*X a^2*X a^6*X  X 2*X a*X a^5*X a^2*X  0 a^3*X a^5*X  X a^6*X a*X 2*X 2*X a^5*X a^5*X a^2*X a^5*X  X  X a^5*X a*X a^5*X a^7*X  X  0  0 a^2*X

generates a code of length 99 over F9[X]/(X^2) who´s minimum homogenous weight is 756.

Homogenous weight enumerator: w(x)=1x^0+304x^756+72x^759+144x^760+144x^763+2104x^765+1440x^766+2736x^767+1944x^768+2808x^769+4176x^772+8544x^774+10296x^775+11160x^776+6120x^777+6552x^778+13824x^781+19352x^783+18792x^784+21384x^785+12024x^786+12600x^787+40896x^790+42648x^792+42408x^793+41112x^794+19440x^795+19008x^796+45936x^799+36848x^801+32040x^802+28584x^803+12888x^804+11376x^805+392x^810+336x^819+384x^828+208x^837+152x^846+184x^855+80x^864

The gray image is a linear code over GF(9) with n=891, k=6 and d=756.
This code was found by Heurico 1.16 in 62.4 seconds.