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

generates a code of length 86 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 163.

Homogenous weight enumerator: w(x)=1x^0+42x^163+114x^164+26x^165+408x^166+156x^167+60x^168+66x^169+648x^170+46x^171+2976x^172+1320x^173+54x^174+168x^175+84x^176+30x^177+24x^178+16x^180+54x^181+24x^182+8x^183+126x^184+84x^185+18x^187+6x^190+2x^255

The gray image is a code over GF(3) with n=774, k=8 and d=489.
This code was found by Heurico 1.16 in 0.935 seconds.