The generator matrix

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

generates a code of length 75 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 139.

Homogenous weight enumerator: w(x)=1x^0+462x^139+690x^140+1808x^141+3708x^142+4932x^143+5690x^144+8598x^145+10398x^146+11126x^147+13938x^148+16614x^149+16082x^150+16590x^151+17184x^152+13444x^153+13200x^154+9054x^155+5396x^156+4008x^157+2118x^158+908x^159+546x^160+168x^161+114x^162+108x^163+42x^164+74x^165+60x^166+36x^167+30x^168+18x^169+2x^171

The gray image is a code over GF(3) with n=675, k=11 and d=417.
This code was found by Heurico 1.16 in 78.4 seconds.