The generator matrix

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

generates a code of length 93 over GR(81,9) who´s minimum homogenous weight is 711.

Homogenous weight enumerator: w(x)=1x^0+600x^711+288x^712+864x^717+1368x^719+3240x^720+5400x^721+3960x^723+4032x^725+7992x^726+5688x^728+7584x^729+13896x^730+17280x^732+6048x^734+17496x^735+10368x^737+11600x^738+24120x^739+58536x^741+22464x^743+42552x^744+20880x^746+21344x^747+38664x^748+77688x^750+19944x^752+36072x^753+14184x^755+13080x^756+22608x^757+392x^765+360x^774+360x^783+200x^792+168x^801+80x^810+24x^819+16x^828

The gray image is a code over GF(9) with n=837, k=6 and d=711.
This code was found by Heurico 1.16 in 56 seconds.