berlin christian lindner leader germany pro-business free democratic party fdp distance possible three-way coalition chancellor angela merkel conservatives pro-environment green sept. 24 election lindner tell german magazine focus interview publish friday saw big hurdle reach agreement green immigration energy policies reduce prospect so-called jamaica coalition conservatives green fdp meantime imagine jamaica coalition lindner tell magazine merkel conservatives 37 percent late infratest dimap poll versus 21 percent social democrats spd low read since early january anti-immigration euro-hostile afd come unchanged 11 percent make third-strongest political force follow radical leave party 10 percent fdp percent green score percent fracture political landscape could make hard form viable alliance current grand coalition merkel cdu/csu spd political experts say skeptical possible option jamaica coalition could work give significant differences party fact alliance never test federal level lindner comment magazine underscore problems face coalition meanwhile sahra wagenknecht head radical leave party signal willingness compromise spd permit possibility so-called red red green coalition among spd leave green course compromise wagenknecht tell rnd chain newspapers cite labor law inheritance tax possible areas leave party would will make concessions germany 's fdp party leader 'ca n't imagine three-way coalition