The generator matrix

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

generates a code of length 27 over GR(81,9) who´s minimum homogenous weight is 189.

Homogenous weight enumerator: w(x)=1x^0+392x^189+504x^192+1048x^198+1944x^200+12096x^201+1032x^207+31104x^209+96768x^210+1384x^216+124416x^218+258048x^219+1376x^225+1032x^234+296x^243

The gray image is a code over GF(9) with n=243, k=6 and d=189.
This code was found by Heurico 1.16 in 13.3 seconds.