Final systems for all regular scenarios (cf. Table 1). Each column represents a particular giant planet architecture (cJS or eJS) and mode of planetesimal–planetesimal interaction (pp1 or pp0). Upper five rows: results based on the SPH collision model, lower three: PM comparison runs. The sizes of planets and their iron cores (black) are proportional to mass^1∕3. The region corresponding to our definition of potentially habitable planets (see Sect. 6.1) is indicated as a gray bar, and the Solar System planets are plotted as open circles as a reference.