Duplicate detections occurring when merging overlapping survey tiles. Duplicates are identified by a maximum angular separation of ΔR < 1.2 arcmin and a redshift difference of Δz = 0.015(1 + z). The strong correlation between their intrinsic richness (λ_*1 and λ_*2) confirms that these detections originate from the same structure. The color scale represents their redshift separation.