The generator matrix

 1  0  1  1  1 X+2  1  1  2  1  1  X  0  1  1  1  1  2  2  1  1  2  2
 0  1  1  0 X+3  1  X X+3  1  1 X+2  1  1 X+3  0  3  0  1  1  2 X+3  X  X
 0  0  X  0 X+2  0  0  2  2  0  0  2  0 X+2 X+2  X X+2  X X+2 X+2  2  X  0
 0  0  0  X  0  0 X+2 X+2 X+2  X  2 X+2  2  2  X  X  X  0 X+2  0 X+2  2  X
 0  0  0  0  2  0  2  0  0  2  0  2  2  2  2  2  2  0  0  2  2  2  2
 0  0  0  0  0  2  0  0  0  0  2  2  2  2  0  0  2  2  2  2  2  2  2

generates a code of length 23 over Z4[X]/(X^2+2,2X) who´s minimum homogenous weight is 18.

Homogenous weight enumerator: w(x)=1x^0+166x^18+104x^19+437x^20+376x^21+700x^22+576x^23+679x^24+384x^25+390x^26+88x^27+155x^28+8x^29+24x^30+8x^32

The gray image is a code over GF(2) with n=92, k=12 and d=36.
This code was found by Heurico 1.16 in 0.282 seconds.