The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  2  1  1  2  1  2  2  2  1  1
 0  2  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  2  0  2  2  0  0  2  2  0  2  2  0  0  2  2  0  2  2  2  0  0  2  2  0  2  0  0  2  2  2  0  2  2  2  2  2  0  0  0  2  0  0  2  2  0  2  2  2  2  0  2  0  0  2  2  2  0  2  2  0  0  2  0  0  0  2  2  0  2  0  0  2  2  0
 0  0  2  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  2  2  2  0  0  2  2  0  2  2  0  0  2  2  0  2  2  0  0  0  2  0  2  2  2  2  0  2  2  0  2  0  2  0  2  0  2  0  2  0  0  2  2  0  2  2  2  0  2  2  0  2  0  2  0  0  2  2  2  2  0  0  0  2  2  0  0  0  2  2  2  0  2  0
 0  0  0  2  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  2  2  0  2  2  2  0  0  0  2  2  2  2  0  0  0  2  2  0  2  2  2  2  0  0  0  2  0  2  2  2  0  2  2  0  0  2  2  0  2  2  0  2  0  2  2  0  2  0  2  0  0  2  2  2  0  2  0  2  0  2  0  2  2  0  2  0  2  2  0  0  0  0  2
 0  0  0  0  2  0  0  0  0  0  0  0  2  2  2  2  2  2  2  0  0  0  0  2  2  2  2  2  2  0  2  0  0  2  2  2  2  0  2  2  2  0  0  2  0  2  2  2  0  2  2  2  2  2  0  2  0  0  2  0  0  2  0  0  0  0  2  2  2  2  0  0  0  0  2  0  2  2  2  2  0  0  2  2  0  2  2  2  2  0  0  2  2
 0  0  0  0  0  2  0  0  0  2  2  2  2  2  0  2  2  0  0  0  0  0  0  0  0  0  0  0  0  2  2  2  0  2  2  0  2  0  0  2  2  2  2  0  0  2  0  2  0  2  0  0  2  2  2  2  2  0  0  0  2  2  2  0  2  2  2  2  0  0  0  2  0  2  0  0  2  2  2  0  2  0  2  2  2  2  0  0  0  0  0  0  0
 0  0  0  0  0  0  2  0  2  2  2  0  0  0  0  2  2  2  2  0  0  0  0  0  0  0  0  0  2  2  0  2  2  0  0  2  0  2  0  2  2  2  2  2  2  0  0  0  2  2  2  0  0  2  2  0  0  2  2  2  0  2  2  0  0  0  2  0  0  2  0  2  0  2  0  2  2  0  2  2  0  2  0  0  0  2  2  0  0  2  2  0  0
 0  0  0  0  0  0  0  2  2  0  2  2  0  2  2  2  0  0  2  0  0  0  0  0  0  0  0  2  2  0  0  2  0  2  2  0  0  2  2  0  2  0  2  0  2  2  2  0  0  2  2  2  2  0  0  0  0  0  2  2  2  2  2  2  2  2  0  2  2  0  2  0  2  2  2  2  2  2  0  0  2  0  2  0  0  0  2  0  2  0  2  0  2

generates a code of length 93 over Z4 who´s minimum homogenous weight is 86.

Homogenous weight enumerator: w(x)=1x^0+50x^86+71x^88+40x^90+80x^92+124x^94+86x^96+8x^98+34x^102+17x^104+1x^176

The gray image is a code over GF(2) with n=186, k=9 and d=86.
This code was found by Heurico 1.16 in 1.18 seconds.