Fraction of missed connected regions and holes ﹩{f}_{\mathrm{missed}}﹩ as a function of ﹩{\nu }_{{\rm{A}}}﹩ for three different box resolutions, ϵ = 1.54, 3.00, and 6.15 h⁻¹ Mpc (yellow squares, blue circles, and green triangles). This statistic informs us of spurious numerical errors in our reconstruction of the genus due to the marching-squares algorithm. The number of missing structures is negligible for our choice of residual resolution ϵ = 1.54 h⁻¹ Mpc but increases sharply with increasing ϵ.