The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  X  1  X  1  1  1  X  1  1  1  1  1  1  X  1  1  1  1  1  1  1  1  X  1  X  1  1  X
 0  6  0  0  0  0  0  0  0  0  6  3  3  6  6  6  0  3  6  3  0  6  3  6  6  6  0  3  6  6  6  0  6  0  6  6  3  3  0  3  0  0  3  0  3  3  3  0  6  3  6  3  3  3  3  3  0  3  3  0  6  6  3  0  0  6  0  3  3  6  6  6  3  3  3  3  6  6  3  6  6  6  0  6  3  0  6  0  0  3  6
 0  0  6  0  0  0  0  6  3  3  3  0  0  3  6  3  6  0  6  6  3  0  0  6  3  6  6  6  3  3  6  0  6  0  6  0  6  0  3  3  0  3  0  6  3  3  6  6  6  0  0  6  0  6  6  3  3  3  3  3  0  0  3  6  3  6  3  3  3  0  6  0  3  3  0  0  3  0  3  6  0  6  6  0  6  0  6  3  3  6  0
 0  0  0  6  0  0  6  3  0  3  0  0  3  6  6  3  0  6  0  3  6  6  6  3  3  6  3  6  0  0  6  0  0  6  6  0  6  3  0  0  6  6  0  3  0  6  6  0  3  0  6  6  6  0  3  3  3  0  6  3  0  6  3  0  0  3  6  3  3  3  0  6  6  6  0  0  0  6  6  6  3  0  3  6  3  6  0  0  3  0  6
 0  0  0  0  6  0  3  3  6  0  3  3  3  0  3  3  0  3  6  0  6  3  0  3  6  3  0  3  0  0  6  6  3  3  6  3  3  3  6  6  6  0  6  6  0  3  0  0  3  3  0  0  6  6  6  3  3  3  6  6  0  3  0  6  0  0  3  0  3  6  6  3  0  3  3  6  6  6  0  0  3  0  3  6  0  0  0  3  3  6  6
 0  0  0  0  0  6  3  3  3  3  3  3  6  3  6  6  3  6  3  3  3  6  3  6  6  0  0  0  3  0  6  3  0  0  0  0  3  3  6  6  0  0  6  0  6  6  3  6  0  0  0  6  3  6  3  3  6  6  6  6  6  3  3  3  3  3  3  0  0  3  6  0  6  3  6  3  3  3  3  3  3  6  6  0  6  3  0  6  0  3  6

generates a code of length 91 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 171.

Homogenous weight enumerator: w(x)=1x^0+244x^171+54x^174+180x^177+618x^180+4374x^182+540x^183+252x^186+172x^189+78x^198+30x^207+16x^216+2x^252

The gray image is a code over GF(3) with n=819, k=8 and d=513.
This code was found by Heurico 1.16 in 58.9 seconds.