The generator matrix

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

generates a code of length 76 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 138.

Homogenous weight enumerator: w(x)=1x^0+46x^138+54x^139+78x^140+268x^141+348x^142+762x^143+774x^144+1086x^145+2442x^146+1336x^147+2892x^148+5892x^149+3074x^150+5784x^151+8388x^152+3542x^153+5532x^154+7332x^155+2260x^156+2712x^157+2484x^158+708x^159+510x^160+246x^161+208x^162+24x^163+54x^164+70x^165+12x^166+24x^167+36x^168+34x^171+6x^174+14x^177+2x^180+6x^183+4x^186+2x^189+2x^192

The gray image is a code over GF(3) with n=684, k=10 and d=414.
This code was found by Heurico 1.16 in 12.1 seconds.