▁the ▁ 1 9 6 0 s ▁and ▁ 1 9 7 0 s . ▁By ▁profession , ▁he ▁is ▁a ▁doctor ▁of ▁medicine . ▁ ▁Ch ess ▁career ▁ ▁In ▁ 1 9 6 0 ▁he ▁won ▁the ▁German ▁Junior ▁Championship , ▁in ▁ 1 9 6 1 ▁was ▁fourth ▁in ▁the ▁World ▁Junior ▁Ch ess ▁Championship . ▁In ▁ 1 9 6 5 ▁he ▁tied ▁for ▁ 1 st ▁with ▁Wolfgang ▁Un z icker ▁in ▁the ▁German ▁Ch ess ▁Championship ▁in ▁Bad ▁A ib ling , ▁but ▁lost ▁an ▁additional ▁match ▁to ▁him ▁there . ▁ ▁He ▁took ▁ 1 st ▁at ▁Map uto ▁ 1 9 7 3 , ▁tied ▁for ▁ 1 st – 2 nd ▁at ▁Pol an ica - Z d ró j ▁ 1 9 7 1 , ▁tied ▁for ▁ 1 st – 2 nd ▁at ▁Mont illa ▁ 1 9 7 3 , ▁tied ▁for ▁ 2 nd – 3 rd ▁at ▁Mont illa ▁ 1 9 7 4 , ▁tied ▁for ▁ 2 nd – 5 th ▁at ▁Man ila ▁ 1 9 7 5 , ▁tied ▁for ▁ 2 nd – 3 rd ▁at ▁Hav ana ▁ 1 9 8 2 , ▁was ▁ 4 th ▁at ▁Ro yan ▁ 1 9 8 8 . ▁ ▁Pf le ger ▁played ▁for ▁Germany ▁in ▁the ▁Ch ess ▁Olymp i ads ▁of ▁ 1 9 6 4 , ▁ 1 9 6 8 , ▁ 1 9 7 2 , ▁ 1 9 7