The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  X  1  X
 0  X 2X  0 X+3 2X  0 X+3 2X  6 X+3 2X+6 X+3 2X+3 2X  X  0  6 2X  6  0 X+3 X+3
 0  0  6  0  0  0  6  3  6  6  0  3  0  6  6  3  6  6  0  0  3  3  6
 0  0  0  6  0  6  6  3  6  0  0  6  6  3  6  0  0  6  3  3  0  3  0
 0  0  0  0  3  3  6  3  3  6  6  3  3  6  0  6  0  0  0  6  6  0  3

generates a code of length 23 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 39.

Homogenous weight enumerator: w(x)=1x^0+176x^39+456x^42+486x^44+490x^45+2916x^46+972x^47+704x^48+276x^51+54x^54+20x^57+6x^60+4x^63

The gray image is a code over GF(3) with n=207, k=8 and d=117.
This code was found by Heurico 1.16 in 0.0758 seconds.