Final orbits (left axis) and final total mass, core mass, and gas (right axis) for protoplanets starting from 1 to 50 AU (bottom/top axis), at three starting different times, t₀ = 0.3, 0.9, 1.5 Myr (bottom to top panels) and for two values of ξ = 0.01, 0.02 (left and right panels). The dotted lines indicate masses or orbits of 5, 100, and 300. Protoplanets starting far from the star experience both little growth and migration. As the starting position approaches the star, the core mass grows towards 10 M_E, triggering rapid migration and gas accretion. However, protoplanets that start inside 5 AU have very protracted gas accretion due to the low pebble isolation mass there. The best analogues of Jupiter, Saturn, Uranus, and Neptune start their assembly in the region around 25 AU for ξ = 0.02 and t₀ = 0.9 Myr.