Comparison of the semi-major axis evolution of a 1 M_J planet in theprimordial discs for different X-ray luminosities: log(L_x∕erg s^‒1) = 30.04 (dashed), log(L_x∕erg s^‒1) = 29.54 (dotted),and vs. no photoevaporation (solid), computed with SPOCK (left panel) and FARGO (right panel). The blue lines correspond to an initial surface density of Σ₀ = 10 g cm^‒2 and the black lines to Σ₀ = 100 g cm^‒2. The horizontal lines are drawn at the final planet parking locations. For SPOCK, the simulations are stopped once the planets reach 0.15 au, while for FARGO the inner grid boundary lies at 0.4 au. Upper right panels: zoom into the parameter space to show the evolution of the log (L_x ∕erg s^‒1) = 30.04 simulations as their total disc lifetimes are significantly shorter than for the other simulations.