Final masses of planets (M_P = M_c + M_env) as a function of initial radius r₀ and initial time t₀ in discs with a dust metallicity of Z_dust = 0.5%. The top plot features an water-to-silicate ratio of 3:1, while the bottom plot features a water-to-silicate ratio of 1:3. Planets that are below the dark blue line have reached pebble isolation mass and can accrete gas. All planets that are inside the white lines have M_c<M_env, indicating that they have underwent runaway gas accretion. The yellow line marks the pebble production line; planets below the yellow line can not have formed by pebble accretion, because the pebbles have not yet formed at the insertion time of the planet, see Lambrechts & Johansen (2014). The black lines indicate the final orbital distance r_f of the planet. The white crosses indicate r₀ and t₀ for the evolution tracks shown in Fig. 4.