Compton y-map superimposed to the INT r′-band of the PSZ2 G076.55+60.29. White contours correspond to the 3, 4, and 5 × 10⁻⁶ levels of the Compton y-map in this area. The Planck nominal pointing is represented in red. In the upper corners we show zoomed RGB images of 327-A (left) and 327-B (right). At z_spec = 0.632 and z_spec = 0.287, the two systems are associated with this SZ signal. This is a clear example of a multiple detection.