Planck-derived B-mode template map computed using the SMICA foreground-cleaned CMB maps. For illustration, the map has been convolved with a Gaussian beam of 10′ (upper panel) and 60′ (lower panel) FWHM. The grey area represents the L80 mask, which was used at the lensing potential reconstruction stage. No obvious foreground residuals are seen in the high-resolution map, nor any obvious systematic effects in the low-resolution one.