The generator matrix

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

generates a code of length 77 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 142.

Homogenous weight enumerator: w(x)=1x^0+810x^142+1446x^143+4098x^144+7068x^145+9498x^146+13542x^147+18534x^148+22446x^149+28976x^150+38388x^151+38256x^152+46370x^153+53610x^154+46314x^155+49024x^156+47094x^157+33252x^158+27948x^159+19860x^160+11592x^161+6362x^162+3720x^163+1824x^164+746x^165+372x^166+48x^167+40x^168+72x^169+60x^170+22x^171+6x^172+18x^173+12x^174+6x^175+6x^177

The gray image is a code over GF(3) with n=693, k=12 and d=426.
This code was found by Heurico 1.16 in 658 seconds.