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

generates a code of length 74 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 146.

Homogenous weight enumerator: w(x)=1x^0+102x^146+32x^147+486x^148+54x^149+32x^150+8x^153+4x^156+4x^159+6x^173

The gray image is a code over GF(3) with n=666, k=6 and d=438.
This code was found by Heurico 1.16 in 75.1 seconds.