XKCD 3036 "Chess Zoo" coloured

This is a version of xkcd 3036 "Chess Zoo" with partially-transparent coloured overlays illustrating the range of movement each piece has. Warm colours (red, brown, orange, yellow) are used for the black pieces, and cool colours (blue, teal, cyan, green) for the white pieces to show contrast. Because some regions are accessible to multiple pieces, these overlays overlap in places, producing colours that are combinations or mixtures of the originals.