Snapshots of the logarithmic density and the shock structure of the 3D recoiling black hole at the final time, t = 20 000 M, for the uniform run with resolution 512 × 256 × 64 (left) and an equivalent three-level AMR run with high tolerance (ε_t = 0.1,0.3, right). The floor of the box shows a cut through the equatorial plane and the walls show perpendicular slices crossing the origin.