Example LS DR 10 grz images with overlaid X-ray contours for one misclassified cluster candidate of each Class. The green dashed circle marks the location of the X-ray detection’s most likely single-source counterpart determined via NWAY. The important parameters of cluster and counterpart association are annotated. Upper left: Class 1 cluster. Here the X-ray point source is clearly associated with the star, while eROMaPPer identified a nearby cluster in the lower left quadrant, where we marked the BCG to highlight the location of the cluster. Upper center: Class 2 cluster with an AGN clearly associated with the X-ray emission. The foreground cluster emission might contribute partially, as seen by the elongated shape. Upper right: Class 3 cluster with an AGN located at the same redshift z ~ 0.48. The contours resemble those of a point source, with the AGN likely outshining any ICM emission. Lower left: Class 4 cluster, for which the most likely single counterpart is an early-type galaxy that is identified as a member. There is no AGN discernible, and the contours are a little more extended. Lower right: Class 5 cluster, for which the NWAY counterpart is not secure (p_any ≈ 0). The X-ray contours have a more extended appearance than the point source of the Class 3 cluster, for example. North is up; east is left, and the images are centered around the initial X-ray point source detections.