Multiband false-color image of the Exemplar: X-ray emission in the [0.5–2] keV band in blue, optical emission (i-band CFHT image) in green, radio emission (GMRT 610 MHz) in red. The ten contours showing the X-ray surface brightness increase logarithmically between 3 × 10⁻¹⁷ and 6 × 10⁻¹⁶ erg s⁻¹ cm⁻². Four X-ray point sources are visible in the image, labeled X1 to X4 above the yellow circles that indicate their positions. The point sources were subtracted before calculating the flux density of the cluster given in XXL Paper II and quoted in Table 2, but they are shown in this image. X3 corresponds to 3XLSS J021002.1-052655 and X4 to 3XLSS J020958.2-052853 in the XXL point source catalog (XXL Paper XXVII). There are optical counterparts to X3 (a galaxy at photometric redshift of 0.028 ±0.014, SDSS J021002.25-052655.5) and to X4 (a galaxy at a photometric redshift of 0.351 ±0.118, SDSS J020958.27-052853.5). The other two X-ray sources did not match the criteria to be included in the X-ray catalog. The size of the image is about 4′ × 4′. Diffuse X-ray emission is seen, and is associated with the galaxy cluster XLSSC 112.