The generator matrix

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

generates a code of length 23 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 43.

Homogenous weight enumerator: w(x)=1x^0+96x^43+168x^44+8x^45+84x^46+252x^47+12x^48+84x^49+6x^51+6x^52+12x^53

The gray image is a code over GF(3) with n=207, k=6 and d=129.
This code was found by Heurico 1.16 in 0.0302 seconds.