The generator matrix

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

generates a code of length 84 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 157.

Homogenous weight enumerator: w(x)=1x^0+642x^157+1278x^158+2066x^159+3312x^160+5634x^161+7190x^162+8322x^163+10980x^164+11538x^165+11976x^166+15330x^167+15980x^168+14634x^169+16212x^170+14308x^171+11502x^172+9894x^173+6356x^174+4296x^175+2724x^176+1354x^177+492x^178+486x^179+216x^180+126x^181+90x^182+16x^183+54x^184+54x^185+22x^186+30x^187+6x^188+2x^189+12x^190+6x^191+6x^193

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 161 seconds.