Supercharged internal combustion engine and method for operating such an internal combustion engine

The engine (1) has at least two cylinders (3) in two groups (3', 3"), an exhaust line (4) and two parallel exhaust superchargers (6, 7). An exhaust gas return (8) has a line (9) which branches out from the exhaust gas line upstream of the two turbines (6a, 7a) and returns to the exhaust line downstream of the second turbine.