The generator matrix

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

generates a code of length 84 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 161.

Homogenous weight enumerator: w(x)=1x^0+396x^161+456x^162+1926x^163+2178x^164+1220x^165+2244x^166+1716x^167+1168x^168+1962x^169+1230x^170+692x^171+1158x^172+1242x^173+294x^174+732x^175+450x^176+296x^177+240x^178+72x^179+4x^183+6x^191

The gray image is a code over GF(3) with n=756, k=9 and d=483.
This code was found by Heurico 1.16 in 1.25 seconds.