The generator matrix

 1  0  0  1  1  1  X  1  1
 0  1  0  1  0  1  1  0  0
 0  0  1  1  1  0  1  0  0
 0  0  0  X  0  0  X  0  0
 0  0  0  0  X  0  X  0  0
 0  0  0  0  0  X  X  0  0

generates a code of length 9 over Z2[X]/(X^2) who´s minimum homogenous weight is 4.

Homogenous weight enumerator: w(x)=1x^0+39x^4+80x^6+141x^8+120x^10+101x^12+24x^14+6x^16

The gray image is a linear code over GF(2) with n=18, k=9 and d=4.
This code was found by Heurico 1.16 in 1.05e-007 seconds.