The generator matrix

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

generates a code of length 84 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 157.

Homogenous weight enumerator: w(x)=1x^0+492x^157+1332x^158+2548x^159+3444x^160+5844x^161+6246x^162+7188x^163+11898x^164+11610x^165+11832x^166+16632x^167+15282x^168+14340x^169+17370x^170+13694x^171+10716x^172+10290x^173+6766x^174+3612x^175+3090x^176+1252x^177+588x^178+444x^179+156x^180+138x^181+108x^182+20x^183+84x^184+24x^185+16x^186+42x^187+30x^188+12x^190+6x^191

The gray image is a code over GF(3) with n=756, k=11 and d=471.
This code was found by Heurico 1.16 in 81 seconds.