The generator matrix

 1  0  1  1  1  1  1 X+6  1  1  1 2X  1  1  1  3  1  1  1 X+3  1  1  1 2X+3  1  1  1  1  1  1  1  1  1  6  X
 0  1 2X+7  8 X+6 X+1 X+5  1 2X  7 2X+8  1  3 2X+4  2  1 X+3 X+4 X+2  1 2X+3  4 2X+2  1  6  X 2X+6 2X+1 X+7  1  5 X+8 2X+5  1  1

generates a code of length 35 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 69.

Homogenous weight enumerator: w(x)=1x^0+48x^69+648x^70+24x^72+6x^78+2x^81

The gray image is a code over GF(3) with n=315, k=6 and d=207.
This code was found by Heurico 1.16 in 0.00654 seconds.