Large-scale spatial distribution of the neutral hydrogen fraction at z ≃ 7 (neutral = black, white and grey = ionised) of the MHDEC (i.e. f_esc decreases with halo mass, M_h) simulation presented in Hutter et al. (2023). The neutral hydrogen fraction shown here is averaged over three cells along the line of sight, where each cell has a comoving depth of 312.5 h⁻¹ kpc and the dimensionless Hubble constant h = 0.6777. The width and height of the box are given in comoving units and correspond to 1° at z = 7. Blue circles depict galaxies with UV luminosities of at least M_UV ≥ −18 and red stars the brightest galaxies in the simulation box with M_UV ≥ −21.