Evolution of the period ratio (left), the eccentricities (middle), and the resonant angles (right) of GJ 163b and c, for M₁ initially set to 100° and Δt₂/κΔt₁ = 100 (top, departure from resonance to external circulation), 400 (middle, departure from resonance to internal circulation), and 1000 (bottom, staying in resonance). In the middle and right columns, red dots correspond to planet b and green dots to planet c. Time is given in Myr, but Δt₁ = 10⁵ s in all these simulations. For a more realistic dissipation (Δt₁ = 100 s), the time should be read as Gyr.