Most massive cluster merger in the TNG-Cluster simulation at z = 0 (log M_200c = 15.4). From top to bottom, each panel displays the projection of dark matter column density ([10^6.5, 10^9.5] M_⊙ kpc⁻²), gas column density ([10^5.5, 10^8.5] M_⊙ kpc⁻²), stellar column density ([10^4.5, 10^7.5] M_⊙ kpc⁻²), density-weighted temperature ([10^6.5,  10^8.5] K), mass-weighted magnetic field strength ([10⁻³,  10] μG), dissipated energy ([10³⁷,  10⁴²] erg s⁻¹ kpc⁻²), and the dissipated energy-weighted Mach number ([2,  50]). The map size is 32 Mpc × 6 Mpc, the considered depth is 20 Mpc, and the colormaps of the images are log-scaled. This figure demonstrates that TNG-Cluster can realize an extremely massive cluster merger and its 4 Mpc-size merger shocks while simultaneously modeling and resolving its environment in great detail.