Average over the 10 simulations for each set of parameters. The top panels show the masses of solids (excepting the outer giant planets in the relevant cases) in the protoplanetary disc, that is still in planetesimals (solid lines), accreted by the embryos (dashed lines) and ejected (dotted lines). The dashed black line denotes the total mass of solids in each simulation. The bottom panel shows the number of embryos that remain. The ‘J/S’ in the legend refers to Jupiter and Saturn.