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

generates a code of length 50 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 91.

Homogenous weight enumerator: w(x)=1x^0+282x^91+390x^92+106x^93+540x^94+636x^95+642x^96+786x^97+2484x^98+2062x^99+2658x^100+4062x^101+2120x^102+888x^103+660x^104+106x^105+354x^106+288x^107+32x^108+210x^109+156x^110+24x^111+84x^112+54x^113+8x^114+30x^115+18x^116+2x^135

The gray image is a code over GF(3) with n=450, k=9 and d=273.
This code was found by Heurico 1.16 in 26.1 seconds.