The generator matrix

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

generates a code of length 47 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 84.

Homogenous weight enumerator: w(x)=1x^0+1194x^84+1716x^85+4866x^86+9896x^87+12108x^88+20046x^89+28388x^90+33768x^91+48144x^92+62450x^93+61014x^94+64566x^95+66884x^96+44862x^97+34842x^98+21354x^99+8370x^100+4326x^101+1918x^102+432x^103+84x^104+122x^105+36x^106+30x^107+6x^108+18x^109

The gray image is a code over GF(3) with n=423, k=12 and d=252.
This code was found by Heurico 1.16 in 363 seconds.