INTERNAL COMBUSTION ENGINE AND A METHOD FOR OPERATING SUCH AN INTERNAL COMBUSTION

Internal combustion engine, preferably a gas engine, comprising a pre-chamber having a pre-chamber intake system and a main combustion chamber having a main combustion chamber intake system, wherein by use of the intake systems a predetermined amount of energy of fuel can be supplied to the main combustion chamber for a combustion, wherein a control unit is configured to control the intake systems according to the following operation modes: