Simulations performed with different numerical grids in Icarus. The blue line corresponds to in situ data observed at the MESSENGER spacecraft. Magnetic field components are plotted. The black, red, and green lines indicate shock arrival time, the ME LE, and the ME TE, respectively. Equidistant grid simulations on the low and medium-resolution grids are given in orange and green. The simulations performed on the stretched grid with AMR levels 2, 3, and 4 are given in red, purple, and brown, respectively.