The generator matrix

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

generates a code of length 23 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 42.

Homogenous weight enumerator: w(x)=1x^0+132x^42+78x^43+222x^44+106x^45+1008x^46+420x^47+100x^48+24x^49+6x^50+24x^51+18x^52+40x^54+6x^55+2x^66

The gray image is a code over GF(3) with n=207, k=7 and d=126.
This code was found by Heurico 1.16 in 0.0296 seconds.