1RB1LE_1LC0RA_0RF0LD_1LE1LA_1RC0LB_---1RC

1RB1LE_1LC0RA_0RF0LD_1LE1LA_1RC0LB_---1RC (bbch) is really interesting. User:N1vi highly doubts that it halts, but it creates pseudo random spaces at the right. User:N1vi ran it for ~860 million steps and the result is shown in the image. Though it might be a fractal.