The generator matrix

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

generates a code of length 71 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 131.

Homogenous weight enumerator: w(x)=1x^0+288x^131+638x^132+1800x^133+3378x^134+4624x^135+5700x^136+7998x^137+10608x^138+10884x^139+15048x^140+16562x^141+15078x^142+19140x^143+17936x^144+13704x^145+12000x^146+9236x^147+5232x^148+3720x^149+1698x^150+852x^151+480x^152+86x^153+108x^154+102x^155+76x^156+84x^157+24x^158+14x^159+18x^160+24x^161+6x^164

The gray image is a code over GF(3) with n=639, k=11 and d=393.
This code was found by Heurico 1.16 in 73.6 seconds.