The generator matrix

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

generates a code of length 74 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 136.

Homogenous weight enumerator: w(x)=1x^0+558x^136+1386x^137+3788x^138+6336x^139+9102x^140+13576x^141+17370x^142+22980x^143+29704x^144+35994x^145+41046x^146+49142x^147+49902x^148+51264x^149+50108x^150+44466x^151+35142x^152+27806x^153+18348x^154+11022x^155+6702x^156+3096x^157+1434x^158+582x^159+258x^160+108x^161+62x^162+54x^163+6x^164+38x^165+30x^166+12x^167+12x^168+6x^169

The gray image is a code over GF(3) with n=666, k=12 and d=408.
This code was found by Heurico 1.16 in 627 seconds.