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

generates a code of length 71 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 132.

Homogenous weight enumerator: w(x)=1x^0+480x^132+18x^133+1104x^135+144x^136+162x^137+1752x^138+1062x^139+1458x^140+2772x^141+1764x^142+2430x^143+2774x^144+1368x^145+324x^146+924x^147+18x^148+456x^150+392x^153+204x^156+36x^159+38x^162+2x^189

The gray image is a code over GF(3) with n=639, k=9 and d=396.
This code was found by Heurico 1.16 in 3.8 seconds.